Flushing assembly and oral irrigator

Abstract

The utility model relates to the technical field of oral irrigators, in particular to an irrigation assembly and an oral irrigator. The flushing assembly comprises a brush head and a flushing part which are detachably connected, a through water outlet channel is arranged in the flushing part, the flushing part comprises a main body section and a spray head section, one end of the spray head section is connected with the main body section, and the other end of the spray head section is bent in the direction deviating from the axis of the main body section. The surface of the spray head section protrudes or sinks to form at least one clamping portion, the brush head comprises a brush head body and bristles, a through clamping channel is formed at one end of the brush head body, the bristles are arranged at the other end of the brush head body, the inner wall of the clamping channel corresponding to the clamping portion sinks or protrudes to form a matching portion, and the clamping portion and the matching portion are matched to achieve detachable connection of the brush head and the washing part. The technical problem that an existing nozzle is single in application scene is solved.

Description

[Technical Field]

[0001] This invention relates to the field of oral irrigator technology, and particularly to an irrigating assembly and an oral irrigator. [Background Technology]

[0002] As people pay more and more attention to oral hygiene, they are also paying more attention to oral cleaning. Traditional toothbrushes or electric toothbrushes cannot effectively clean the mouth. The principle of oral irrigators is that a water tank, motor, and water pump assembly are placed inside the pump housing. The motor drives the water pump assembly, which draws water from the tank and generates a high-pressure water jet, which is then sprayed out through the nozzle to clean the mouth. Existing nozzles can only spray water, and their application scenarios are relatively limited. [Utility Model Content]

[0003] To address the technical problem of the limited application scenarios of existing spray nozzles, this utility model provides a rinsing component and a dental flosser.

[0004] The present invention provides a rinsing assembly that solves the technical problem by including a detachably connected brush head and a rinsing component. The rinsing component has a through-flow water outlet channel. The rinsing component includes a main body section and a nozzle section. One end of the nozzle section is connected to the main body section, and the other end is bent in a direction deviating from the axis of the main body section. The surface of the nozzle section has protrusions or depressions forming at least one locking portion. The brush head includes a brush head body and bristles. One end of the brush head body forms a through-flow locking channel, and the other end is provided with the bristles. The inner wall of the locking channel is recessed or protruded corresponding to the locking portion to form a mating portion. The locking portion and the mating portion cooperate to implement the detachable connection between the brush head and the rinsing component.

[0005] Preferably, the end of the nozzle segment away from the main body segment passes through the snap-fit ​​channel and is exposed on the side of the brush head body where the bristles are located;

[0006] Alternatively, the end of the nozzle segment furthest from the main body segment may be housed within the snap-fit ​​channel.

[0007] Preferably, the nozzle section has a nozzle that connects to the water outlet channel on the side away from the main body section, and an anti-clogging groove is also provided on the same side as the nozzle, with an anti-clogging opening on the groove wall.

[0008] Preferably, the flushing component includes a snap-fit ​​section and an installation section; one end of the snap-fit ​​section is connected to the end of the main body section away from the nozzle section, and the other end is connected to the installation section, wherein the outer diameter of the snap-fit ​​section is larger than the outer diameter of the installation section.

[0009] Preferably, a cleaning gel or cleaning solid is provided in the water outlet channel, and when liquid enters the water outlet channel, the cleaning gel or cleaning solid is sprayed out from the nozzle along with the liquid.

[0010] Another solution to the technical problem of this utility model is to provide a water flosser, which includes a housing, a water pump assembly, and a rinsing assembly as described above; the housing is provided with a receiving space having a clearance opening, the water pump assembly is housed in the receiving space, and the end of the rinsing assembly away from the brush head passes through the clearance opening and is connected to the water pump assembly.

[0011] Preferably, the water flosser includes a rotating assembly and a rotary motor, and the rinsing component includes a snap-fit ​​section and a mounting section; one end of the snap-fit ​​section is connected to the end of the main body section away from the nozzle section, and the other end is connected to the mounting section, the mounting section is connected to the water pump assembly, the surface of the snap-fit ​​section includes two opposing mating surfaces and an arc surface connecting the two mating surfaces, the rotary motor is disposed near the snap-fit ​​section within the accommodating space, one end of the rotating assembly is rotatably connected to the mating surfaces, and the other end is rotatably connected to the rotary motor.

[0012] Preferably, the water pump assembly is further provided with a quick-release assembly on the side near the flushing assembly. The quick-release assembly includes an elastic element and a quick-release component. The quick-release component includes a quick-release piece and a quick-release button that are detachably connected to each other. The housing is provided with an opening corresponding to the quick-release button, and the quick-release button passes through the opening and is exposed in the housing.

[0013] The outer casing or the water pump assembly has a blocking block on the side of the quick-release piece away from the quick-release button, and the elastic element is sandwiched between the quick-release piece and the blocking block;

[0014] The installation section is provided with a mating groove, and the quick-release piece passes through the mating groove to form a limiting channel. The elastic element abuts against the quick-release piece so that the inner wall surface of the limiting channel mates with the mating groove.

[0015] Preferably, the limiting channel includes a first limiting channel and a second limiting channel connected to each other, the inner wall surface of the first limiting channel is matched with the arc surface, and the inner diameter of the first limiting channel is smaller than the inner diameter of the second limiting channel.

[0016] Preferably, the quick-release piece has a sliding channel corresponding to the mating surface, and the water pump assembly has a protruding structure on the side near the quick-release assembly corresponding to the sliding channel. When the quick-release assembly moves relative to the snap-fit ​​section, the protruding structure is slidably connected to the sliding channel.

[0017] Compared with the prior art, the rinsing assembly and oral irrigator provided by this utility model have the following advantages:

[0018] 1. The rinsing assembly provided in this embodiment of the utility model includes a detachably connected brush head and a rinsing component. The rinsing component has a through-flow water outlet channel and includes a main body section and a nozzle section. One end of the nozzle section is connected to the main body section, and the other end is bent in a direction offset from the axis of the main body section. The surface of the nozzle section has protrusions or depressions forming at least one snap-fit ​​portion. The brush head includes a brush head body and bristles. One end of the brush head body forms a through-flow snap-fit ​​channel, and the other end is provided with bristles. The inner wall of the snap-fit ​​channel has depressions or protrusions corresponding to the snap-fit ​​portion, forming a mating portion. The snap-fit ​​portion and the mating portion cooperate to achieve a detachable connection between the brush head and the rinsing component. Users can freely install or remove the brush head according to their usage scenarios.

[0019] 2. In this invention, the end of the nozzle section furthest from the main body extends through the snap-fit ​​channel and protrudes from the side of the brush head body where the bristles are located. The user can apply pressure to the rinsing component to directly press this end of the nozzle section against the gum surface, allowing the high-pressure water jet to directly clean the gums. Alternatively, the end of the nozzle section furthest from the main body can be housed within the snap-fit ​​channel, allowing the brush head to be used directly as a toothbrush.

[0020] 3. The nozzle section of this utility model has a nozzle connected to the water outlet channel on the side away from the main body section. An anti-clogging groove is also provided on the same side as the nozzle, and an anti-clogging opening is provided on the groove wall. After rinsing the gums, water can overflow from the anti-clogging opening, preventing the gums from directly clogging the nozzle.

[0021] 4. The flushing component of this utility model includes a snap-fit ​​section and an installation section; one end of the snap-fit ​​section is connected to the end of the main body section away from the nozzle section, and the other end is connected to the installation section, the outer diameter of the snap-fit ​​section being larger than the outer diameter of the installation section. The installation section can be directly connected to the outlet of an external water pump assembly, allowing the flushing component to be quickly installed onto the water pump assembly.

[0022] 5. The water outlet channel of this invention is equipped with a cleaning gel or cleaning solid. When liquid enters the water outlet channel, the cleaning gel or cleaning solid is sprayed out from the nozzle along with the liquid. Users do not need to apply any additional toothpaste when using it for the first time to clean their gums. Therefore, the rinsing device can also be used as a disposable, replaceable accessory.

[0023] 6. This utility model also provides a water flosser, which includes a housing, a water pump assembly, and the aforementioned rinsing assembly; the housing has a receiving space with a clearance opening, the water pump assembly is housed in the receiving space, and the end of the rinsing component away from the brush head passes through the clearance opening and connects to the water pump assembly. The technical effects achieved by the water flosser are the same as those of the rinsing assembly, and will not be described in detail here.

[0024] 7. The water flosser of this utility model includes a rotating assembly and a rotary motor. The rinsing component includes a snap-fit ​​section and a mounting section. One end of the snap-fit ​​section is connected to the end of the main body section away from the nozzle section, and the other end is connected to the mounting section. The mounting section is connected to a water pump assembly. The surface of the snap-fit ​​section includes two opposing mating surfaces and an arc surface connecting the two mating surfaces. The rotary motor is located near the snap-fit ​​section within an accommodating space. One end of the rotating assembly is rotatably connected to the mating surfaces, and the other end is rotatably connected to the rotary motor. When the rotary motor drives the rotating assembly to move, the rotating assembly can further drive the rinsing component to rotate relative to the outer shell, thereby flexibly controlling the contact angle between the nozzle section and the teeth.

[0025] 8. The water pump assembly of this utility model is also provided with a quick-release assembly on the side near the flushing assembly. The quick-release assembly includes an elastic element and a quick-release component. The quick-release component includes a quick-release piece and a quick-release button that are detachably connected to each other. The outer shell is provided with an opening corresponding to the quick-release button, and the quick-release button passes through the opening and is exposed on the outer shell.

[0026] The housing or water pump assembly has a blocking block on the side of the quick-release plate away from the quick-release button, and an elastic element is clamped between the quick-release plate and the blocking block.

[0027] The installation section is equipped with a mating groove. The quick-release piece passes through the mating groove to form a limiting channel. The elastic element holds the quick-release piece so that the inner wall of the limiting channel mates with the mating groove. Pushing the quick-release piece causes the quick-release button to spring back. During the springback process, the inner wall of the limiting channel near the elastic element will lock against the bottom surface of the mating groove, thereby fixing the flushing component.

[0028] 9. The limiting channel of this utility model includes a first limiting channel and a second limiting channel connected to each other. The inner wall surface of the first limiting channel matches the arc surface, and the inner diameter of the first limiting channel is smaller than the inner diameter of the second limiting channel. The inner wall of the first limiting channel and the inner wall of the mating groove are both arc surfaces b, and the quick-release plate will not restrict the rotation of the flushing component relative to the outer shell.

[0029] 10. The quick-release plate of this utility model has a sliding channel on the mating surface. The water pump assembly has a protruding structure on the side near the quick-release assembly corresponding to the sliding channel. When the quick-release assembly moves relative to the locking section, the protruding structure slides in connection with the sliding channel. When the quick-release button is pressed, the quick-release plate always moves towards the elastic element side to prevent displacement of the quick-release plate under force. [Attached Image Description]

[0030] Figure 1 This is a schematic diagram of the structure of a rinsing assembly provided in an embodiment of the present invention.

[0031] Figure 2 This is a cross-sectional view of a flushing component provided in an embodiment of this utility model.

[0032] Figure 3 This is a schematic diagram of the structure of a brush head of a rinsing assembly provided in an embodiment of this utility model.

[0033] Figure 4 This is a partial structural diagram of the rinsing component of a rinsing assembly provided in an embodiment of this utility model.

[0034] Figure 5 This is a schematic diagram of the structure of the water flosser provided in the second embodiment of this utility model. Figure 1 .

[0035] Figure 6 This is a partial structural diagram of the oral irrigator provided in the second embodiment of the present invention. Figure 2 .

[0036] Figure 7 This is a partial structural diagram of the oral irrigator provided in the second embodiment of the present invention. Figure 3 .

[0037] Figure 8 This is a partial structural diagram of the quick-release structure of the water flosser provided in the second embodiment of this utility model.

[0038] Figure 9 This is a schematic diagram of the housing of the water pump assembly near the flushing assembly provided in the second embodiment of the present invention.

[0039] Explanation of reference numerals in the attached diagram:

[0040] 10. Water flosser; 40. Flushing assembly;

[0041] 1. Housing; 2. Rotating assembly; 3. Water pump assembly; 4. Flushing components; 5. Rotary motor; 6. Quick-release assembly; 7. Brush head;

[0042] 11. Clearance opening; 40a. Mating surface; 40b. Curved surface; 41. Main body section; 42. Nozzle section; 43. Snap-fit ​​section; 44. Installation section; 45. Water outlet channel; 46. Cleaning gel or cleaning solid; 60. Quick-release component; 61. Elastic component; 62. Quick-release plate; 63. Quick-release button; 64. Barrier block; 71. Brush head body; 72. Brush bristles;

[0043] 420. Nozzle; 421. Snap-fit ​​part; 422. Anti-clogging groove; 423. Anti-clogging opening; 441. Mating groove; 620. Limiting channel; 621. First limiting channel; 622. Second limiting channel; 623. Sliding channel; 711. Snap-fit ​​channel; 712. Mating part.

Detailed Implementation Methods

[0044] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0045] It should be noted that the terms "first" and "second" in the specification and claims of this invention are used to distinguish different objects, rather than to describe a specific order.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0047] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0048] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0049] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0050] As people pay more and more attention to oral hygiene, they are also paying more attention to oral cleaning. Traditional toothbrushes or electric toothbrushes cannot effectively clean the mouth. The principle of oral irrigators is that a water tank, motor, and water pump assembly are placed inside the pump housing. The motor drives the water pump assembly, which draws water from the tank and generates a high-pressure water jet, which is then sprayed out through the nozzle to clean the mouth. Existing nozzles can only spray water, and their application scenarios are relatively limited.

[0051] Please combine Figures 1 to 4 The first embodiment of this utility model provides a rinsing assembly 40, which includes a detachably connected brush head 7 and a rinsing component 4. The rinsing component 4 has a through water outlet channel 45. The rinsing component 4 includes a main body section 41 and a nozzle section 42. One end of the nozzle section 42 is connected to the main body section 41, and the other end is bent in a direction away from the axis of the main body section 41. The surface of the nozzle section 42 has a protrusion or depression to form at least one snap-fit ​​part 421. The brush head 7 includes a brush head body 71 and bristles 72. One end of the brush head body 71 forms a through snap-fit ​​channel 711, and the other end is provided with bristles 72. The inner wall of the snap-fit ​​channel 711 is recessed or protruded corresponding to the snap-fit ​​part 421 to form a mating part 712. The snap-fit ​​part 421 and the mating part 712 cooperate to realize the detachable connection between the brush head 7 and the rinsing component 4.

[0052] Understandably, existing spray nozzles can only spray water at the nozzle itself. If there are stains on the surface of the teeth, the pressure of the water jet alone is insufficient to clean them, limiting their application. Furthermore, toothpaste contains ingredients that protect teeth; while rinsing with water can remove residue, it doesn't protect the teeth. Having to brush before or after each rinse makes brushing feel cumbersome for users.

[0053] In this embodiment, the brush head 7 and the rinsing component 4 are detachably connected. When the user only wants to rinse the oral cavity, the brush head 7 and the rinsing component 4 can be separated. At this time, the oral cavity can be cleaned by the high-pressure water jet sprayed from the nozzle section 42 alone.

[0054] When users want to perform a deep clean of their teeth, they can attach the brush head 7 to the nozzle section 42, allowing them to clean their gums and teeth simultaneously. Additionally, toothpaste can be applied to the bristles 72 before brushing. Fluoride in toothpaste is a key ingredient for protecting teeth. Fluoride ions combine with hydroxyapatite in teeth to form fluorapatite, which is more difficult to dissolve, thus protecting teeth from acidic substances. The antibacterial ingredients in toothpaste inhibit the growth of bacteria in the mouth, reducing the number of harmful bacteria and lowering the risk of cavities and periodontal disease. Furthermore, abrasive particles in toothpaste, such as calcium carbonate and dicalcium phosphate, remove stains and plaque from the tooth surface through mechanical friction during brushing, keeping teeth clean. Therefore, when the brush head 7 and the rinsing component 4 are connected, users can perform a deep oral cleaning.

[0055] In one embodiment, the end of the nozzle section 42 furthest from the main body section 41 passes through the snap-fit ​​channel 711 and protrudes from the side of the brush head body 71 where the bristles 72 are located. It should be understood that the end of the nozzle section 42 furthest from the main body section 41 can be directly exposed in the snap-fit ​​channel 711, so that when cleaning the oral cavity, the user can apply pressure to the rinsing member 4 to directly press the end of the nozzle section 42 furthest from the main body section 41 against the gum surface, so that the high-pressure water jet can directly clean the gums.

[0056] In another embodiment, the end of the nozzle section 42 furthest from the main body section 41 is housed within the snap-fit ​​channel 711. In this case, if the brush head 7 is mounted on the rinsing component 4, the rinsing assembly 40 functions more like a nozzle that can brush teeth and spray water.

[0057] Further, please refer to Figure 4 The nozzle section 42, on the side furthest from the main body section 41, has a nozzle 420 that connects to the water outlet channel 45. On the same side as the nozzle 420, an anti-clogging groove 422 is also provided, with an anti-clogging opening 423 on its wall. It should be understood that when the end of the nozzle section 42 furthest from the main body section 41 directly contacts the gum, the presence of the anti-clogging opening 423 allows water to overflow from the opening after rinsing the gum, preventing the gum from directly clogging the nozzle 420.

[0058] Furthermore, the flushing component 4 includes a snap-fit ​​section 43 and an mounting section 44; one end of the snap-fit ​​section 43 is connected to the end of the main body section 41 away from the nozzle section 42, and the other end is connected to the mounting section 44. The outer diameter of the snap-fit ​​section 43 is larger than the outer diameter of the mounting section 44. The mounting section 44 can be directly connected to the outlet of the external water pump assembly 3, so that the flushing component 4 can be quickly installed on the water pump assembly 3.

[0059] Further, please refer to Figure 2The water outlet channel 45 is provided with a cleaning gel or cleaning solid 46. When liquid enters the water outlet channel 45, the cleaning gel or cleaning solid 46 is sprayed out from the nozzle 420 along with the liquid.

[0060] It should be understood that the rinsing component 4 provided in this embodiment can be a rinsing component 4 with an attached cleaning gel or cleaning solid 46. For example, the cleaning gel or cleaning solid 46 can be toothpaste. During the production of the rinsing component 4, the cleaning gel or cleaning solid 46 can be placed inside the hollow channel, so that the user does not need to apply any additional toothpaste when using it for the first time to clean the gums. Therefore, the rinsing component 4 can also be used as a disposable, replaceable accessory.

[0061] To solve the above problems, please combine Figure 1 , Figure 6 and Figure 7 The second embodiment of this utility model also provides a water flosser 10, which includes a housing 1, a water pump assembly 3 and a rinsing assembly 40 as described above; the housing 1 is provided with a receiving space having a clearance opening 11, the water pump assembly 3 is housed in the receiving space, and the end of the rinsing component 4 away from the brush head 7 passes through the clearance opening 11 and is connected to the water pump assembly 3.

[0062] Furthermore, the water flosser 10 includes a rotating assembly 2 and a rotary motor 5. The rinsing component 4 includes a snap-fit ​​section 43 and a mounting section 44. One end of the snap-fit ​​section 43 is connected to the end of the main body section 41 away from the nozzle section 42, and the other end is connected to the mounting section 44. The mounting section 44 is connected to the water pump assembly 3. The surface of the snap-fit ​​section 43 includes two opposing mating surfaces 40a and an arc surface 40b connecting the two mating surfaces 40a. The rotary motor 5 is disposed near the snap-fit ​​section 43 within the accommodating space. One end of the rotating assembly 2 is rotatably connected to the mating surface 40a, and the other end is rotatably connected to the rotary motor 5. It should be understood that after water flows from the water pump assembly 3 into the rinsing component 4, it first enters the water outlet channel 45 through the mounting section 44, and then is sprayed out sequentially through the snap-fit ​​section 43, the main body section 41, and the nozzle section 42. In this embodiment, the snap-fit ​​section 43 of the rinsing component 4 will correspond to the fixing component, and the mating surface 40a can cooperate with the fixing component, so that when the rotary motor 5 drives the rotating component 2 to move, the rotating component 2 can further drive the rinsing component 4 to rotate relative to the outer shell 1, thereby flexibly controlling the contact angle between the nozzle section 42 and the teeth.

[0063] Specifically, please combine Figure 6 , Figure 7 ,and Figure 8The water pump assembly 3 is also provided with a quick-release assembly 6 on the side near the flushing assembly 40. The quick-release assembly 6 includes an elastic element 61 and a quick-release piece 60. The quick-release piece 60 includes a quick-release plate 62 and a quick-release button 63 that are detachably connected to each other. The housing 1 is provided with an opening corresponding to the quick-release button 63, and the quick-release button 63 passes through the opening and is exposed on the housing 1. The housing 1 or the water pump assembly 3 is provided with a blocking block 64 on the side of the quick-release plate 62 away from the quick-release button 63. The elastic element 61 is sandwiched between the quick-release plate 62 and the blocking block 64. The mounting section 44 is provided with a mating groove 441. The quick-release plate 62 passes through the mating groove 441 to form a limiting channel 620. The elastic element 61 abuts against the quick-release plate 62 so that the inner wall surface of the limiting channel 620 mates with the mating groove 441.

[0064] Understandably, although the rotating structure provided in this embodiment can fix the flushing component 4, this embodiment further provides an additional quick-release assembly 6. When the quick-release button 63 is not pressed, the elastic member 61 always applies a restoring force to the end of the quick-release component 60 away from the quick-release button 63. When installing the flushing component 4, only a force needs to be applied to the quick-release button 63. At this time, the quick-release button 63 is pushed by the force to move the entire quick-release component 60 away from the quick-release button 63. At this time, the elastic member 61 is gradually squeezed. When the quick-release button 63 can no longer be pressed, the installation section 44 of the flushing component 4 can be passed through the clearance opening 11 and the limiting channel 620 in sequence into the liquid outlet channel. At this time, the installation of the flushing component 4 is completed. The force applied to the quick-release button 63 is then released. The compressed elastic element 61 provides a restoring force, which pushes the quick-release element 60 to cause the quick-release button 63 to spring back. During the springback process, the inner wall of the limiting channel 620 near the elastic element 61 will lock the bottom surface of the mating groove 441, thereby fixing the flushing element 4.

[0065] Furthermore, the limiting channel 620 includes a first limiting channel 621 and a second limiting channel 622 connected to each other. The inner wall surface of the first limiting channel 621 mates with the arc surface 40b. When the flushing component 4 is installed on the water pump assembly 3 and the user does not apply force to the quick-release button 63, the restoring force provided by the elastic element 61 will always push the quick-release component 60 to lock against the bottom surface of the mating groove 441. It should be understood that the inner diameter of the first limiting channel 621 is smaller than the inner diameter of the second limiting channel 622, and the outer diameter of the mounting section 44 is larger than the inner diameter of the first limiting channel 621 but smaller than the inner diameter of the second limiting channel 622. That is, when the quick-release piece 62 locks the flushing component 4, the groove wall of the mating groove 441 will limit the axial direction of the flushing component 4, making it impossible for the flushing component 4 to be pulled out of the liquid outlet channel under external force. In addition, since the inner wall of the first limiting channel 621 and the inner wall of the mating groove 441 are both arc surfaces 40b, the quick release piece 62 will not restrict the flushing piece 4 from rotating relative to the outer shell 1.

[0066] Specifically, please combine Figure 6 , Figure 8 and Figure 9 , Figure 9 This is a schematic diagram of the housing portion of the water pump assembly 3 near the flushing assembly 40. A sliding channel 623 is provided on the mating surface 40a of the quick-release tab 62. A protruding structure is provided on the side of the housing near the quick-release assembly 6 corresponding to the sliding channel 623. When the quick-release assembly 6 moves relative to the locking section 43, the protruding structure slides in connection with the sliding channel 623. It should be understood that the cooperation between the sliding channel 623 and the protruding structure ensures that when the quick-release button 63 is pressed, the quick-release tab 62 always moves towards the elastic element 61, preventing displacement of the quick-release tab 62 under force, which would cause radial deformation of the elastic element 61.

[0067] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A flush assembly characterized by: The flushing assembly comprises a detachably connected brush head and flushing piece, the flushing piece is provided with a water outlet channel penetrating therethrough, the flushing piece comprises a main body section and a nozzle section, one end of the nozzle section is connected with the main body section, the other end of the nozzle section is bent towards a direction deviating from an axial center line of the main body section, the surface of the nozzle section is protruded or recessed to form at least one clamping portion, the brush head comprises a brush head main body and bristles, one end of the brush head main body is formed with a clamping channel penetrating therethrough, the other end of the brush head main body is provided with the bristles, the inner wall of the clamping channel is recessed or protruded to form a matching portion corresponding to the clamping portion, the clamping portion and the matching portion are matched to implement the detachable connection of the brush head and the flushing piece.

2. The irrigation assembly of claim 1, wherein: The end of the nozzle section deviating from the main body section is exposed to the side of the brush head main body provided with the bristles through the clamping channel. Alternatively, the end of the nozzle section deviating from the main body section is accommodated in the clamping channel.

3. The irrigation assembly of claim 2, wherein: The side of the nozzle section deviating from the main body section is provided with a nozzle communicating with the water outlet channel, the same side provided with the nozzle is further provided with an anti-blocking groove, the groove wall of the anti-blocking groove is provided with an anti-blocking opening.

4. The irrigation assembly of claim 3, wherein: The flushing piece comprises a clamping section and a mounting section, one end of the clamping section is connected with the end of the main body section deviating from the nozzle section, the other end of the clamping section is connected with the mounting section, the outer diameter of the clamping section is larger than the outer diameter of the mounting section.

5. The irrigation assembly of claim 3, wherein: The water outlet channel is provided with a cleaning gel or a cleaning solid, when liquid enters the water outlet channel, the cleaning gel or the cleaning solid is sprayed out of the nozzle together with the liquid.

6. An oral irrigator characterized by: The oral irrigator comprises a shell, a water pump assembly and the flushing assembly according to any one of claims 1-5, the shell is provided with an accommodation space with a positioning opening, the water pump assembly is accommodated in the accommodation space, the end of the flushing piece deviating from the brush head is connected with the water pump assembly through the positioning opening.

7. The oral irrigator of claim 6, wherein: The oral irrigator comprises a rotating assembly and a rotating motor, the flushing piece comprises a clamping section and a mounting section, one end of the clamping section is connected with the end of the main body section deviating from the nozzle section, the other end of the clamping section is connected with the mounting section, the mounting section is connected with the water pump assembly, the surface of the clamping section comprises two opposite matching surfaces and an arc surface connecting the two matching surfaces, the rotating motor is arranged in the accommodation space close to the clamping section, one end of the rotating assembly is rotationally connected with the matching surface, the other end of the rotating assembly is rotationally connected with the rotating motor.

8. The oral irrigator of claim 7, wherein: The side of the water pump assembly close to the flushing assembly is further provided with a quick release assembly, the quick release assembly comprises an elastic member and a quick release piece, the quick release piece comprises a quick release sheet and a quick release button which are detachably connected with each other, the shell is provided with an opening corresponding to the quick release button, the quick release button is exposed to the shell through the opening; The shell or the water pump assembly is provided with a blocking block on the side of the quick release sheet deviating from the quick release button, the elastic member is clamped between the quick release sheet and the blocking block; The mounting section is provided with a matching groove, the quick release sheet is formed with a limiting channel penetrating through the matching groove, the elastic member abuts against the quick release sheet to make the inner wall surface of the limiting channel match with the matching groove.

9. The oral irrigator of claim 8, wherein: The limiting channel comprises a first limiting channel and a second limiting channel connected with each other, an inner wall surface of the first limiting channel is matched with the arc surface, and an inner diameter of the first limiting channel is smaller than an inner diameter of the second limiting channel.

10. The oral irrigator of claim 8, wherein: The quick release piece is provided with a sliding channel corresponding to the matching surface, and a protruding structure is arranged on a side of the water pump assembly close to the quick release assembly and corresponding to the sliding channel; when the quick release assembly moves relative to the clamping section, the protruding structure is in sliding connection with the sliding channel.

Images