Water pick

Abstract

The utility model discloses an oral irrigator which comprises a shell, a water pump assembly, a nozzle and a sealing piece, the water pump assembly is arranged in the shell, and a water outlet channel is formed in the water pump assembly; one end of the nozzle penetrates through the shell to be connected with the water pump assembly, and the interior of the nozzle communicates with the water outlet channel. At least one part of the sealing part is located between the end of the nozzle and the water outlet channel, at least the other part of the sealing part is located between the water pump assembly and the shell, and the sealing part is an integrated structural part. According to the oral irrigator, the sealing performance and the cleaning effect of the oral irrigator are improved, and the sealing piece is convenient to install and easy to assemble.

Description

Technical Field

[0001] This utility model relates to the field of oral hygiene technology, and in particular to a water flosser. Background Technology

[0002] A water flosser is a common oral hygiene tool that uses water to rinse teeth, helping to maintain gum health. The seal at the nozzle of the water flosser is crucial for its proper functioning and maintenance.

[0003] In related technologies, the lower end of the nozzle is connected to a water pump so that water from the tank flows into the nozzle through the pump and is then sprayed out from the upper end of the nozzle. However, a reduced seal between the nozzle and the water pump assembly can cause water to easily flow to other parts of the water flosser, potentially damaging the internal components and affecting its cleaning effectiveness. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a water flosser that improves the sealing performance and cleaning effect of the water flosser, and whose sealing components are convenient to install and easy to assemble.

[0005] A water flosser according to an embodiment of the present invention includes: a housing; a water pump assembly disposed within the housing, the water pump assembly having a water outlet channel formed thereon; a nozzle passing through the housing and connected to the water pump assembly, the nozzle communicating with the water outlet channel; and a seal, at least a portion of which is located between the nozzle and the water outlet channel, and at least another portion of which is located between the water pump assembly and the housing, the seal being an integral structural component.

[0006] According to the embodiments of this utility model, the water flosser, by incorporating a sealing element, effectively prevents fluid, such as water, flowing from the pump assembly to the nozzle from leaking out along the gap at the connection between the nozzle and the pump assembly. This improves the internal sealing effect of the water flosser and ensures that the water pressurized by the pump assembly can be accurately sprayed from the nozzle, thereby guaranteeing the cleaning effect of the water flosser and extending its service life. Furthermore, the integrated sealing element results in low production costs, high production precision, and convenient installation, improving the internal integration of the water flosser, contributing to its miniaturization, and enhancing its aesthetics and market competitiveness. Additionally, the sealing element also provides some shock absorption and noise reduction, thereby improving the user experience.

[0007] According to some embodiments of the present invention, the water pump assembly includes: a pump body; a water outlet adapter, wherein the water outlet adapter is disposed between the pump body and the nozzle, a water outlet channel is formed on the water outlet adapter, the nozzle is fitted into the water outlet channel, at least a portion of the seal is disposed between the nozzle and the water outlet adapter, and at least another portion of the seal is disposed between the water outlet adapter and the housing.

[0008] According to some embodiments of the present invention, a mating groove is formed on the housing, and the end of the water outlet adapter away from the pump body is fitted into the mating groove.

[0009] According to some embodiments of the present invention, the sealing element includes: a first sealing part disposed between the nozzle and the water outlet adapter; a second sealing part disposed between the outer peripheral surface of the water outlet adapter and the side wall of the mating groove; and a third sealing part, the two ends of which are respectively connected to the first sealing part and the second sealing part, and the third sealing part is located between the end face of the water outlet adapter away from the pump body and the bottom wall of the mating groove.

[0010] According to some embodiments of the present invention, the water outlet channel includes a first channel section and a second channel section, the second channel section is formed on the side of the first channel section facing the pump body, the cross-sectional area of ​​the first channel section is larger than the cross-sectional area of ​​the second channel section, and the first sealing part is provided at the first channel section.

[0011] According to some embodiments of the present invention, a boss is provided on the outer peripheral surface of the water outlet adapter, the outer peripheral surface of the boss contacts the side wall of the mating groove, and the third sealing part is provided on the side of the boss away from the pump body.

[0012] According to some embodiments of the present invention, the boss is formed by a portion of the water outlet adapter protruding toward the side where the sidewall of the mating groove is located.

[0013] According to some embodiments of the present invention, a buckle is provided on one of the first sealing part and the nozzle, and a groove is formed on the other of the first sealing part and the nozzle, and the buckle is engaged in the groove.

[0014] According to some embodiments of the present invention, the sealing element is interference-fitted between the nozzle, the water outlet adapter, and the housing.

[0015] According to some embodiments of this utility model, the sealing element is a deformable element.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0018] Figure 1 This is a schematic diagram of a water flosser according to an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 A cross-sectional view along line BB;

[0020] Figure 3 yes Figure 2 An enlarged view of part A, shown in the middle circle.

[0021] Figure label:

[0022] 100. Water flosser;

[0023] 1. Housing; 11. Mating groove; 12. Installation space;

[0024] 2. Water pump assembly; 21. Water outlet channel; 211. First channel section; 212. Second channel section;

[0025] 22. Pump body; 23. Water outlet adapter; 231. Boss;

[0026] 3. Nozzle; 4. Seal;

[0027] 41. First sealing part; 42. Second sealing part;

[0028] 43. Third sealing part; 5. Water tank. Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-3 Describes a water flosser 100 according to an embodiment of the present invention.

[0030] like Figure 2 As shown, the oral irrigator 100 according to an embodiment of the present invention includes a housing 1, a water pump assembly 2, a nozzle 3, and a seal 4.

[0031] Specifically, refer to Figure 2 The water pump assembly 2 is located inside the housing 1, and a water outlet channel 21 is formed on the water pump assembly 2. The nozzle 3 passes through the housing 1 and is connected to the water pump assembly 2, and the nozzle 3 communicates with the water outlet channel 21.

[0032] For example, refer to Figure 2 The water pump assembly 2 is along the height direction of the water flosser 100 (i.e., Figure 2 Extending in the direction indicated by the middle arrow C, the housing 1 defines an installation space 12, within which the water pump assembly 2 and other electrical components of the water flosser 100 are housed. The water pump assembly 2, as one of the core components of the water flosser 100, works closely with other components to ensure the normal operation and functional switching of the entire water flosser 100. By placing the water pump assembly 2 inside the housing 1, the housing 1 provides physical protection for the water pump assembly 2, reducing the risk of damage caused by collisions, scratches, or other actions during daily use. It also isolates the water pump assembly 2 from external moisture, air, and chemicals, reducing the possibility of corrosion and oxidation, ensuring stable performance, and extending its service life, thereby guaranteeing the performance and lifespan of the water flosser 100. Furthermore, the housing 1 completely encloses the water pump assembly 2, which helps limit the noise generated during operation, reducing the noise level of the water flosser 100 and improving the user experience.

[0033] For example, in Figure 2 In the example, the lower end of the nozzle 3 in the height direction passes through the housing 1 and connects to the upper side of the water pump assembly 2. The water outlet channel 21 on the water pump assembly 2 communicates with the interior of the nozzle 3, allowing the water pump assembly 2 to pressurize the water in the water tank 5 and flow into the nozzle 3 through the water outlet channel 21. When the oral irrigator 100 is started, the water pump assembly 2 begins to work, generating a pressure difference that causes water to flow from the water tank 5 to the nozzle 3, and the water flow is sprayed out of the nozzle 3 at a certain angle and force, thereby achieving the function of cleaning teeth and the oral cavity. Thus, the way the nozzle 3 is connected to the water pump assembly 2 ensures that the water in the water tank 5 can be accurately and quickly delivered from the water tank 5 to the nozzle 3, thereby enabling the oral irrigator 100 to achieve a good oral irrigating effect. In addition, the water outlet channel 21 serves to connect the water pump assembly 2 and the nozzle 3, ensuring that the pressure generated by the water pump assembly 2 can be effectively transmitted to the nozzle, improving the working efficiency and reliability of the oral irrigator 100.

[0034] Combination Figure 2 At least a portion of the seal 4 is located between one end of the nozzle 3 and the water outlet channel 21, and at least another portion of the seal 4 is located between the water pump assembly 2 and the housing 1. The seal 4 is an integral structural component. The oral irrigator 100 is a device that uses the water pump assembly 2 to generate pressure, converting water in the water tank 5 into a high-speed pulsed water flow to clean and massage teeth and gums. During the use of the oral irrigator 100, high-pressure water flow is often involved. To improve the sealing performance of the oral irrigator 100, a seal 4 can be provided at the connection between the nozzle 3 and the water pump assembly 2 on the lower side.

[0035] For example, in Figure 3 In the example, at least a portion of the seal 4 is located at the connection between the nozzle 3 and the water outlet channel 21. Thus, the seal 4 fills the gap at the connection between the nozzle 3 and the water outlet channel 21, preventing water from seeping out and ensuring that water pressurized by the pump assembly 2 can flow into the nozzle 3 and be smoothly ejected from the nozzle 3, thereby guaranteeing the cleaning effect of the water flosser 100 and extending its service life. The other portion of the seal 4 (e.g., the portion of the seal 4 other than the portion sealing the nozzle 3 and the water outlet channel 21) is located between the pump assembly 2 and the housing 1. This ensures the sealing of the connection between the housing 1 and the water outlet adapter 23, preventing water from the pump assembly 2 from seeping out along the connection gap, or external water or dirt from entering the water flosser 100. This protects the internal components of the water flosser 100 from corrosion or impact on the internal circuitry, thereby extending the service life of the water flosser 100 and improving the user experience. In addition, when the water flosser 100 is in operation, the water pump assembly 2 will generate vibration and noise. The seal 4, located between the water pump assembly 2 and the housing 1, can play a certain role in shock absorption, thereby reducing the operating noise of the water pump assembly 2 and improving the user experience.

[0036] Furthermore, by employing an integrated seal 4, precise sealing in multiple areas can be achieved (for example, seal 4 can simultaneously seal the connection between nozzle 3, water pump assembly 2, and housing 1), preventing water from seeping through gaps and further improving the sealing performance of the water flosser 100. In addition, the integrated seal 4, with its high manufacturing precision and convenient installation, improves the integration of the internal components of the water flosser 100, contributing to its miniaturization and enhancing its aesthetics and market competitiveness.

[0037] According to the embodiment of this utility model, the water flosser 100, by providing a sealing element 4, can effectively prevent fluid, such as water, flowing from the water pump assembly 2 to the nozzle 3 from seeping out along the gap at the connection between the nozzle 3 and the water pump assembly 2, thereby improving the sealing effect inside the water flosser 100. It also ensures that the water pressurized by the water pump assembly 2 can be accurately sprayed from the nozzle 3, thus guaranteeing the cleaning effect of the water flosser 100 and extending its service life. Furthermore, the integrated sealing element 4 has low production cost, high production precision, and convenient installation, improving the internal integration of the water flosser 100, contributing to its miniaturization, and enhancing its aesthetics and market competitiveness. In addition, the sealing element 4 also plays a role in shock absorption and noise reduction, thereby improving the user experience.

[0038] According to some embodiments of this utility model, combined with Figure 2 and Figure 3The water pump assembly 2 includes a pump body 22 and a water outlet adapter 23. Specifically, the water outlet adapter 23 is located between the pump body 22 and the nozzle 3, a water outlet channel 21 is formed on the water outlet adapter 23, the nozzle 3 is fitted into the water outlet channel 21, at least a portion of the seal 4 is located between the nozzle 3 and the water outlet adapter 23, and at least another portion of the seal 4 is located between the water outlet adapter 23 and the housing 1.

[0039] For example, refer to Figure 3 Along the height direction of the water flosser 100, the lower end of the nozzle 3 is inserted into the water outlet adapter 23. The lower end of the nozzle 3 is located inside the water outlet channel 21. The lower part of the water outlet adapter 23 is fitted onto the pump body 22. The water outlet adapter 23, the nozzle 3 on its upper side, and the pump body 22 on its lower side form a stable assembly structure, making it less prone to loosening or displacement during use, thus ensuring the effectiveness and service life of the water flosser 100. Moreover, the nozzle 3 can also be stably fitted onto the water outlet adapter 23, ensuring smooth water flow while also improving the assembly stability of the nozzle 3.

[0040] For example, in Figure 3 In the example, the seal 4 covers the upper end face of the water outlet adapter 23, as well as part of the upper inner wall surface and outer peripheral surface. At least a portion of the seal 4 is located between the nozzle 3 and the water outlet adapter 23, effectively preventing water from seeping out from the gap at the connection between the nozzle 3 and the water outlet adapter 23. This reduces the likelihood of damage to the internal electronic components and other parts of the water flosser 100, ensuring the effectiveness of the water flosser 100 and extending its service life.

[0041] Furthermore, by positioning at least another portion of the seal 4 between the water outlet adapter 23 and the housing 1, when the oral irrigator 100 is operating, the seal 4 can fill the gap between the water outlet adapter 23 and the housing 1. When water flows to the gap between the outer peripheral surface of the lower end of the nozzle 3 and the inner wall surface of the water outlet adapter 23, it is less likely to flow further through the gap between the water outlet adapter 23 and the housing 1 to other components inside the housing 1. This further ensures the sealing between the nozzle 3, the water outlet adapter 23, and the inner wall surface of the housing 1, preventing performance degradation or equipment damage caused by water leakage. Moreover, the seal 4 positioned between the water outlet adapter 23 and the housing 1 creates a relatively enclosed space inside the oral irrigator 100. When the water pump assembly 2 pressurizes and delivers water, the water pressure inside the oral irrigator 100 remains stable, allowing water to flow out from the nozzle 3 at a stable pressure, improving the cleaning effect. It should be noted that the seal 4 is not limited to only one or the other portion mentioned above.

[0042] According to some embodiments of this utility model, combined with Figure 2 and Figure 3A mating groove 11 is formed on the housing 1, and the end of the water outlet adapter 23 that is away from the pump body 22 is mated in the mating groove 11.

[0043] Reference Figure 3 A mating groove 11 is formed on the inner circumferential surface of the housing 1 facing the water outlet adapter 23. The shape of the mating groove 11 is adapted to the shape of the water outlet adapter 23 below, and the upper side of the water outlet adapter 23 in the height direction fits into the mating groove 11. Thus, the mating groove 11 defines the installation area of ​​the water outlet adapter 23, which facilitates the assembly of the water outlet adapter 23 with the housing 1, simplifies the installation process, and promotes rapid assembly of the water outlet adapter 23 with the housing 1, thereby improving assembly efficiency. In addition, the setting of the mating groove 11 allows the water flow transmitted by the pump body 22 to flow smoothly according to the design path, avoiding problems such as poor water flow or leakage caused by installation deviation. Moreover, embedding the water outlet adapter 23 into the mating groove 11 can increase the contact area between the two, and the mating groove 11 has a limiting function, thereby improving the stability of the connection. When the water flosser 100 is in operation, the water outlet adapter 23 can better buffer the pressure and impact of the water flow transmitted by the pump body 22, preventing the adapter from loosening or shifting, and ensuring the normal operation of the water flosser 100.

[0044] According to some embodiments of this utility model, combined with Figure 2 and Figure 3 The sealing element 4 includes a first sealing part 41, a second sealing part 42, and a third sealing part 43. Specifically, the first sealing part 41 is located between the nozzle 3 and the water outlet adapter 23, the second sealing part 42 is located between the outer peripheral surface of the water outlet adapter 23 and the side wall of the mating groove 11, and the two ends of the third sealing part 43 are respectively connected to the first sealing part 41 and the second sealing part 42. The third sealing part 43 is located between the end face of the water outlet adapter 23 away from the pump body 22 and the bottom wall of the mating groove 11.

[0045] For example, in Figure 3 In the example, the first sealing part 41 is located between the outer peripheral surface of the lower end of the nozzle 3 and the inner wall surface of the water outlet channel 21, extending at a certain angle along the height direction of the water flosser 100. The angle of inclination can be set according to the actual installation situation, such as 15°, 30° or 45°, so that the first sealing part 41 can better fill the gap between the nozzle 3 and the water outlet adapter 23. This ensures good sealing at the nozzle 3 and the water outlet adapter 23, preventing water from seeping out from the gap, ensuring the performance of the internal electronic components of the water flosser 100 and ensuring user safety.

[0046] For example, in Figure 3In the example, the second sealing part 42 is fitted between the water outlet adapter 23 and the side wall of the mating groove 11 of the housing 1, and the second sealing part 42 extends circumferentially along the water outlet adapter 23. Thus, the arrangement of the second sealing part 42 ensures a good sealing relationship between the water outlet adapter 23 and the housing 1, preventing water from the pump body 22 from leaking out through the gap between the water outlet adapter 23 and the housing 1 due to the high transmission pressure of the pump body 22, or preventing external water stains or other liquids from seeping into the interior of the water outlet adapter 23 through the gap, contaminating the internal water, and affecting the performance and safety of the water flosser 100. The third sealing part 43 extends circumferentially along the water outlet adapter 23. Figure 3 Extending in the left-right direction as shown, the third sealing part 43 connects between the first sealing part 41 and the second sealing part 42, that is, between the upper end face of the water outlet adapter 23 and the housing 1. The third sealing part 43, together with the first sealing part 41 and the second sealing part 42, forms a sealing element 4 with an upwardly protruding shape. That is, the sealing element 4 covers part of the inner wall surface of the water outlet channel 21, the upper end face of the water outlet adapter 23, and part of the outer peripheral surface of the water outlet adapter 23. For example, the sealing element 4 can be set as a hollow umbrella-shaped structure or a hollow ring-shaped structure, etc. But it is not limited to this. With this configuration, a single sealing element 4 can achieve sealing between the nozzle 3, the water outlet adapter 23, and the housing 1, and the sealing effect is good, which also reduces the installation difficulty. In addition, the number of sealing components used is reduced, the production cost is reduced, the utilization rate of the internal space of the water flosser 100 is improved, which is more conducive to the integration and miniaturization of the water flosser 100, and improves the portability of the water flosser 100.

[0047] According to some embodiments of this utility model, combined with Figure 2 and Figure 3 The water outlet channel 21 includes a first channel section 211 and a second channel section 212. The second channel section 212 is formed on the side of the first channel section 211 facing the pump body 22. The cross-sectional area of ​​the first channel section 211 is larger than the cross-sectional area of ​​the second channel section 212. The first sealing part 41 is provided at the first channel section 211.

[0048] Reference Figure 3 The first channel segment 211 is formed above the second channel segment 212, and the first channel segment 211 and the second channel segment 212 are connected. The second channel segment 212 extends downward along the height direction of the water outlet adapter 23 to the connection area between the water outlet adapter 23 and the pump body 22. The second channel segment 212 is the initial channel for water flow after it flows out of the water source, and it can stably deliver the water pressurized by the pump to the nozzle 3. For example, in Figure 3 In the example, the lower outer circumferential surface of nozzle 3 is in clearance fit with the second channel segment 212.

[0049] Therefore, by setting the cross-sectional area of ​​the first channel segment 211 to be larger than that of the second channel segment 212, an "L-shaped" platform can be formed between the first channel segment 211 and the second channel segment 212. This increases the gap between the outer peripheral surface of the nozzle 3 and the first channel segment 211, allowing the first sealing part 41 to fill the first channel, achieving a sealing effect while also facilitating the assembly of the sealing element 4. Furthermore, the first channel segment 211 provides ample assembly space for the nozzle 3, facilitating the insertion of the lower end of the nozzle 3 into the water outlet channel 21. This reduces the assembly difficulty of the nozzle 3 and the water outlet adapter 23, effectively improving the assembly efficiency of the water flosser 100.

[0050] According to some embodiments of this utility model, combined with Figure 2 and Figure 3 The outer peripheral surface of the water outlet adapter 23 is provided with a boss 231. The outer peripheral surface of the boss 231 contacts the side wall of the mating groove 11. The third sealing part 43 is provided on the side of the boss 231 away from the pump body 22.

[0051] Reference Figure 3 An annular boss 231 is formed on the outer peripheral surface of the water outlet adapter 23. The cross-sectional shape of the boss 231 matches the cross-sectional shape of the third sealing part 43 in the left-right direction, and the cross-sectional width of the boss 231 matches the cross-sectional width of the third sealing part 43 in the left-right direction. The upper surface of the boss 231 and the mating groove 11 on the housing 1 together define the installation area for the seal 4, improving the installation accuracy of the seal 4 and thus ensuring the sealing effect of the seal 4. In addition, the third sealing part 43 is located on the upper side of the boss 231. When the water outlet adapter 23 is installed, the boss 231 can exert a certain amount of pressure on the seal 4, causing the seal 4 to undergo elastic deformation, thereby better filling the gap between the adapter and the connecting parts and ensuring the sealing of the internal water system of the water flosser 100. Furthermore, the lower surface of the boss 231 and the upper end face of the pump body 22 mutually abut against each other, effectively limiting the relative movement and swaying between the water outlet adapter 23 and the pump body 22, improving the assembly stability between the water outlet adapter 23 and the pump body 22, thereby improving the overall stability of the water pump assembly 2. Moreover, the above-mentioned fit can also ensure the relative positional accuracy of the water outlet adapter 23 with components such as the nozzle 3 and the pump body 22 during installation, allowing the water flow to flow smoothly according to the designed path, thereby ensuring the effectiveness of the water flosser 100.

[0052] According to some embodiments of this utility model, combined with Figure 2 and Figure 3 The boss 231 is formed by a portion of the water outlet adapter 23 protruding towards the side of the mating groove 11. For example, in Figure 3In the example, the outer periphery of the water outlet adapter 23 protrudes outward to form a boss 231. That is, the water outlet adapter 23 is a single, integrated structural component. Compared to multiple interconnected structural components, the integrated water outlet adapter 23 is more convenient to use and easier to install, effectively improving the assembly accuracy of the water pump assembly 2. Furthermore, the integrated water outlet adapter 23 has higher structural strength, effectively improving its ability to buffer the pressure from the water flow transmitted by the pump body 22, thereby enhancing the performance of the water pump assembly 2. In addition, the tight fit between the boss 231 and the inner wall of the mating groove 11 forms a specific sealing structure, which, in conjunction with the sealing element 4, further enhances the sealing effect, thereby improving the performance of the water flosser 100.

[0053] According to some embodiments of this utility model, one of the first sealing part 41 and the nozzle 3 is provided with a buckle, and the other of the first sealing part 41 and the nozzle 3 is formed with a groove, and the buckle is engaged in the groove (not shown in the figure). For example, the groove and the buckle can be set in the following two ways: First, the buckle is formed on the side of the first sealing part 41 facing the nozzle 3, and a groove is formed correspondingly at the connection between the lower outer periphery of the nozzle 3 and the first sealing part 41. Second, a groove is formed on the side of the first sealing part 41 facing the nozzle 3, and a buckle is formed correspondingly at the connection between the lower outer periphery of the nozzle 3 and the first sealing part 41.

[0054] For example, the buckle and the slot are along the left and right direction (such as...). Figure 3 The buckles (located in the left and right directions) are correspondingly positioned, and the snap-fits engage within the slots, effectively reducing the assembly difficulty of the seal 4 and nozzle 3 while ensuring the stability of their assembly. This also facilitates quick assembly and disassembly of the seal 4 and nozzle 3, meeting diverse user needs such as daily cleaning, orthodontic care, and regular cleaning and maintenance of the nozzle 3. Furthermore, the slots and snap-fits ensure a tight fit between the first sealing part 41 and the nozzle 3, forming a robust sealing structure that further enhances the sealing effect at the nozzle 3, effectively reducing the risk of leakage at the connection between the nozzle 3 and the seal 4. This improves the performance of the oral irrigator 100 and extends its service life. It should be noted that the number, shape, and arrangement of the snap-fits and slots can be adjusted according to actual conditions and are not specifically limited here.

[0055] According to some embodiments of the present invention, the sealing element 4 is interference-fitted between the nozzle 3, the water outlet adapter 23 and the housing 1.

[0056] For example, when the seal 4 is installed between the nozzle 3 and the mating groove 11 on the adapter, a certain interference fit is generated, thereby improving the sealing function of the seal 4. In this application, the seal 4 is fitted between the nozzle 3, the water outlet adapter 23, and the housing 1. The interference fit installation method allows the seal 4 to fit tightly with the above three sealing surfaces, tightly filling the gaps between the mating bodies, improving the sealing effect of the seal 4, thereby preventing water from seeping out along the gaps during the operation of the water flosser 100, affecting the effect and service life of the water flosser 100. In addition, the elastic force generated by the interference fit can automatically compensate for dimensional changes caused by various factors, allowing the seal 4 to maintain its sealing performance during long-term use, thereby extending the service life of the seal 4 and ensuring the performance of the water flosser 100. It should be noted that the size of the interference fit depends on factors such as the type and material of the seal 4, working conditions (pressure, temperature, medium, etc.), and the structure and size of the sealed area, and can be set according to the specific use.

[0057] According to some embodiments of this utility model, the sealing element 4 is a deformable element.

[0058] For example, when the seal 4 is a deformable part, it can adaptively adjust according to the surface shape and size of the sealed structure to achieve a tight fit and ensure a sealing effect. In other words, the seal 4 can be manufactured as a sheet-like deformable material (not shown in the figure). For example, during the assembly of the seal 4 with the water outlet adapter 23, the seal 4 can be bent into a hollow umbrella-shaped structure to fit between the nozzle 3, the housing 1, and the water outlet adapter 23. Therefore, the deformable seal 4 is suitable for installation in areas of various shapes, effectively expanding its installation scenarios and facilitating large-scale production and application. Furthermore, the seal 4 can undergo slight deformation or change its bending angle according to the actual installation scenario, effectively reducing the production and installation difficulty of the seal 4 and improving its sealing effect. It should be noted that the term "deformable" can be understood as deformable, bendable, and rollable under pressure.

[0059] Furthermore, during operation, the water pump assembly 2 increases the pressure of the water flow to create a certain impact force, thereby achieving a cleaning effect on the user's mouth and teeth. When the pressure near the seal 4 changes, the deformable seal 4 can adapt to the pressure fluctuations by deforming. Under high pressure, the seal 4 can compress and deform, increasing the sealing area and sealing force to ensure a good seal; under low pressure, the seal 4 can return to its original shape, maintaining the effectiveness of the seal, thus extending the service life of the seal 4 and the water pump 100. In addition, the deformable seal 4 usually has a certain degree of elasticity. When the water pump assembly 2 is running, it inevitably generates some noise and vibration. The deformable seal 4 can absorb some of the vibration energy, reducing the transmission of vibration, thereby reducing noise generation and improving the user experience.

[0060] According to some embodiments of this utility model, the sealing element 4 is a one-piece molded part. Therefore, the one-piece molding process makes the surface of the sealing element 4 smoother and more continuous, with no gaps or holes, effectively preventing water leakage along the gaps during the operation of the water flosser 100. Simultaneously, since there are no joints on the sealing element 4, the potential for leakage due to poor sealing at joints is avoided, providing a better sealing effect and extending the performance and service life of the water flosser 100. Furthermore, the one-piece molded sealing element 4 is easier to manufacture, has higher production precision, and higher production efficiency, thus effectively reducing the production cost of the sealing element 4.

[0061] Other configurations and operations of the oral irrigator 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.

[0062] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0063] In the description of this utility model, "multiple" means two or more.

[0064] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0065] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An oral irrigator characterized by, include: case; A water pump assembly is disposed within the housing, and a water outlet channel is formed on the water pump assembly; A nozzle, which passes through the housing and is connected to the water pump assembly, and communicates with the water outlet channel; A seal, at least a portion of which is located between the nozzle and the water outlet channel, and at least another portion of which is located between the pump assembly and the housing, wherein the seal is an integral structural component.

2. The oral irrigator of claim 1, wherein, The water pump assembly includes: Pump body; A water outlet adapter is provided between the pump body and the nozzle, a water outlet channel is formed on the water outlet adapter, the nozzle is fitted into the water outlet channel, at least a portion of the seal is provided between the nozzle and the water outlet adapter, and at least another portion of the seal is provided between the water outlet adapter and the housing.

3. The oral irrigator of claim 2, wherein, A fitting groove is formed on the housing, and the end of the water outlet adapter away from the pump body fits into the fitting groove.

4. The oral irrigator of claim 3, wherein, The sealing element includes: A first sealing part is disposed between the nozzle and the water outlet adapter; The second sealing part is disposed between the outer peripheral surface of the water outlet adapter and the side wall of the mating groove; The third sealing part is connected to the first sealing part and the second sealing part at its two ends respectively. The third sealing part is located between the end face of the water outlet adapter away from the pump body and the bottom wall of the mating groove.

5. The oral irrigator of claim 4, wherein, The water outlet channel includes a first channel section and a second channel section. The second channel section is formed on the side of the first channel section facing the pump body. The cross-sectional area of ​​the first channel section is larger than that of the second channel section. The first sealing part is provided at the first channel section.

6. The oral irrigator of claim 4, wherein, The outer circumferential surface of the water outlet adapter is provided with a boss, the outer circumferential surface of the boss is in contact with the side wall of the mating groove, and the third sealing part is provided on the side of the boss away from the pump body.

7. The oral irrigator of claim 6, wherein, The boss is formed by a portion of the water outlet adapter protruding toward the side wall of the mating groove.

8. The oral irrigator of claim 4, wherein, One of the first sealing part and the nozzle is provided with a buckle, and the other of the first sealing part and the nozzle is formed with a groove, and the buckle is engaged in the groove.

9. The oral irrigator of claim 2, wherein, The seal is interference-fitted between the nozzle, the water outlet adapter, and the housing.

10. The oral irrigator of any one of claims 1-9, wherein, The seal is a deformable component.

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