Water pick
By setting a first opening that communicates with the cavity on the main body of the water flosser, the problem of increased manufacturing difficulty due to multiple cavities and openings in the prior art is solved, thus achieving the effect of simplifying the manufacturing process and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-03-06
AI Technical Summary
Existing oral irrigators require additional cavities and openings on the main body, increasing the difficulty and complexity of the manufacturing process.
Design a water flosser that uses a first opening on the body that communicates with the cavity for water injection and nozzle storage, and utilizes the same cavity when installing a concentrated mouthwash supply mechanism, thereby reducing the number of additional openings and cavities.
It simplifies the manufacturing process, reduces manufacturing difficulty and cost, and improves the ease of use and reliability of the product.
Smart Images
Figure CN223969173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral hygiene, and in particular to a water flosser. Background Technology
[0002] In related technologies, oral irrigators typically require an additional water inlet on the water storage structure. They also require additional openings on the main body for the nozzle to be housed within the main body, as well as additional openings and cavities for the concentrated rinsing supply mechanism. In other words, the main body of the oral irrigator needs to have multiple cavities and openings, which not only increases the manufacturing process but also raises the manufacturing difficulty. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide an improved oral irrigator.
[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a water flosser is constructed, including a body, a nozzle detachably connected to the body, and a concentrated mouthwash supply mechanism detachably installed in the body; a cavity is provided inside the body, and the body also includes a first opening and a second opening opposite to the first opening; the first opening communicates with the cavity to form a water inlet when water is injected into the water flosser, to allow the nozzle to pass through and be stored in the cavity when the nozzle is retracted, and to allow the concentrated mouthwash supply mechanism to pass through and be installed in the cavity when the concentrated mouthwash supply mechanism is installed; the second opening communicates with the cavity.
[0005] In some embodiments, the oral irrigator further includes a water reservoir;
[0006] The second opening faces the water storage cavity;
[0007] When water is injected into the water storage chamber, the first opening, the chamber body, and the second opening are sequentially connected to form a water injection channel.
[0008] In some embodiments, the cavity forms the mounting cavity of the concentrated mouthwash supply mechanism; the second opening forms a water outlet for discharging concentrated mouthwash into the water storage cavity;
[0009] The mouthwash supply mechanism includes a first cylinder, a second cylinder, and a drive assembly.
[0010] A liquid storage cavity is formed on the inner side of the first cylinder, and a liquid outlet communicating with the liquid storage cavity is provided at one end of the first cylinder.
[0011] The second cylinder is coaxially arranged with the first cylinder and rotates relative to it;
[0012] The driving assembly includes a threaded sleeve and a stud; the threaded sleeve is disposed in the second cylinder, coaxially disposed with the second cylinder and fixedly connected to the second cylinder, the threaded sleeve is sleeved on the outer periphery of a portion of the stud and screwed to the stud; a push plate is connected to one end of the stud that protrudes from the threaded sleeve; the push plate is driven by the stud to move axially reciprocally in the liquid storage cavity to push the concentrated mouthwash in the liquid storage cavity out of the outlet.
[0013] In some embodiments, a chuck is provided in the first cylinder, and a plurality of first teeth are provided at one end of the chuck facing the second cylinder, and the plurality of first teeth are spaced apart along the circumference of the chuck.
[0014] The second cylinder has a plurality of second teeth at one end. The plurality of second teeth are spaced apart along the circumference of the second cylinder and mesh with the plurality of first teeth, so that the concentrated mouthwash is output quantitatively when the second cylinder rotates.
[0015] In some embodiments, a limiting and fixing structure is provided in the cavity to limit and / or fix the nozzle or the mouthwash supply mechanism.
[0016] In some embodiments, the water flosser further includes a cover that closes the first opening.
[0017] In some embodiments, the cover is connected to the mouthwash supply mechanism.
[0018] In some embodiments, the mouthwash supply mechanism includes a second cylinder, and a rotating mechanism is provided on the cover, the rotating mechanism being connected to the second cylinder.
[0019] In some embodiments, a connecting protrusion is provided at one end of the second cylinder;
[0020] The rotating mechanism includes a knob and a connector that is fixedly connected to the knob and the connecting protrusion.
[0021] In some embodiments, the body is provided with a pump core assembly, and the nozzle is detachably connected to the pump core assembly.
[0022] The oral irrigator of this utility model has the following beneficial effects: the oral irrigator has a first opening on the main body that communicates with the cavity. The first opening can form a water inlet when water is added, allow the nozzle to be stored in the cavity when the nozzle is stored, and allow the concentrated mouthwash supply mechanism to be installed in the cavity when the concentrated mouthwash supply mechanism is installed. Therefore, there is no need to add other openings on the main body, thereby reducing the number of openings and cavities, simplifying the manufacturing process and reducing the manufacturing difficulty. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0024] Figure 1 This is a partial exploded view of the structure of the water flosser in some embodiments of this utility model;
[0025] Figure 2 yes Figure 1 A partial structural diagram of the water flosser shown;
[0026] Figure 3 yes Figure 2 An exploded view of a portion of the structure of the water flosser shown;
[0027] Figure 4 yes Figure 3 The diagram shows the main structure of the water flosser.
[0028] Figure 5 yes Figure 4 The image shows a cross-sectional view of the main body of the oral irrigator;
[0029] Figure 6 yes Figure 2 The diagram shows the nozzle of the oral irrigator housed within the cavity structure.
[0030] Figure 7 yes Figure 2 A schematic diagram of the concentrated mouthwash supply mechanism housing chamber of the water flosser shown.
[0031] Figure 8 yes Figure 7 A cross-sectional view of the concentrated mouthwash supply mechanism of the water flosser shown. Detailed Implementation
[0032] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.
[0033] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0034] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
[0035] Figure 1 Some preferred embodiments of the oral irrigator of this invention are shown. This oral irrigator can be used for oral cleaning and has the advantages of being easy to manufacture, having low manufacturing difficulty, and low manufacturing cost.
[0036] like Figure 1 and Figure 2 As shown, in some embodiments, the oral irrigator may include a body 10, a nozzle 30, and a concentrated mouthwash supply mechanism 40. The body 10 is used for mounting and storing the nozzle 30 and the concentrated mouthwash supply mechanism 40. The nozzle 30 is detachably connected to the body 10 to clean the oral cavity by spraying water. The concentrated mouthwash supply mechanism 40 is detachably disposed in the body 10 for adding mouthwash to the water, thereby improving the cleanliness of the oral cavity.
[0037] In some embodiments, the body 10 may be flat. Of course, it is understood that in other embodiments, the body 10 may also be cylindrical. In this embodiment, the body 10 may be made of plastic material; in other embodiments, the body 10 may also be made of metal, glass, or the like.
[0038] like Figures 3 to 5 As shown, in some embodiments, the body 10 includes a first opening 11 and a second opening 12, which are disposed at both ends of the body 10 in the axial direction and are disposed opposite to each other. In some embodiments, the first opening 11 and the second opening 12 are connected, and the diameter of the first opening 11 may be larger than the diameter of the second opening 12. For example, in some embodiments, the first opening 11 is generally square and the second opening 12 is generally elliptical. The width of the first opening 11 may be greater than the major axis dimension of the second opening 12. In other embodiments, when both the first opening 11 and the second opening 12 are circular, the radial dimension of the first opening 11 may be greater than the radial dimension of the second opening 12. The size of the first opening 11 may be adapted to the maximum size of the nozzle 30 and the concentrated mouthwash supply mechanism 40, thereby facilitating the nozzle 30 or the concentrated mouthwash supply mechanism 40 to pass through the first opening 11.
[0039] In some embodiments, a cavity 13 is provided inside the body 10, which communicates with the first opening 11 and the second opening 12. In some embodiments, the cavity 13 can be a cylindrical cavity; specifically, in some embodiments, the cavity 13 can be a cavity with a generally circular cross-section.
[0040] The first opening 11 forms a water inlet during water injection, allowing external water to flow out through the first opening 11, the cavity 13, and the second opening 12. The first opening 11, the cavity 13, and the second opening 12 are sequentially connected to form a water injection channel. The first opening 11 can also be used to house the nozzle 30 into the cavity 13 when it needs to be housed. The first opening 11 can also be used to allow the concentrated mouthwash supply mechanism 40 to pass through and be installed in the cavity 13 during installation. In other words, the cavity 13 can form a housing for the nozzle 30 or an installation cavity for the concentrated mouthwash supply mechanism 40. The second opening 12 forms a water outlet for supplying water, such as clean water or concentrated mouthwash.
[0041] In some embodiments, the body 10 is provided with a receiving cavity 14, which may be spaced apart from the cavity 13 in the length or width direction of the body 10. The receiving cavity 14 may extend through both ends of the body 10. The receiving cavity 14 can be used to receive a pump core assembly (not shown).
[0042] In some embodiments, a limiting and fixing structure 15 is provided in the cavity 13, which can be used to limit and / or fix the nozzle 30 or the concentrated mouthwash supply mechanism 40. In some embodiments, the limiting and fixing structure 15 is disposed near the second opening 12, and may include at least two limiting brackets 151 protruding from the inner wall of the cavity 13, which may be spaced apart circumferentially along the cavity 13. In some embodiments, the limiting brackets 151 may be further selected as two, which are disposed opposite to each other, and their opposing surfaces may be provided with slots 1511 that cooperate with the concentrated mouthwash supply mechanism 40. The end face of the limiting bracket 151 facing the first opening 11 may form a limiting surface that restricts the installation of the nozzle 30, which may restrict the nozzle 30 from continuing to penetrate into the second opening 12, so as to prevent the nozzle 30 from falling into the water storage cavity 21. In some embodiments, the nozzle 30 may also be inserted and engaged with the limiting bracket 151.
[0043] In some embodiments, the oral irrigator may further include a cover 16, which may be a flip cover and is rotatably connected to an end face having a first opening 11. The cover 16 may be used to close the first opening 11. In some embodiments, the cover 16 may be partially embedded in the first opening 11 and may be in close contact with the inner wall of the cavity 13.
[0044] In some embodiments, the cover 16 may include a closing portion 161 and a rotating mechanism. The closing portion 161 is used to close the first opening 11, and its shape and size may be adapted to the shape and size of the first opening 11. The rotating mechanism is mounted on the closing portion 161 and can be connected to the second cylinder 42 of the concentrated mouthwash supply mechanism 40. Specifically, the rotating mechanism may include a knob 163 and a connector 162. The connector 162 may be partially embedded in the closing portion 161, that is, the closing portion 161 may be sleeved on the outer periphery of part of the connector 162, and the connector 162 may be connected to the knob 163 and the second cylinder 42. Specifically, it may be engaged with the knob 163 and the second cylinder 42. The end of the connector 162 facing the cavity 13 is provided with a first engaging groove 1621, which can be engaged with the second cylinder 42 through the first engaging groove 1621. The end of the connector 162 opposite to the cavity 13 is provided with a latching protrusion 1622, which can engage with the knob 163. In some embodiments, the knob 163 can partially protrude outward from the cover portion 161. The knob 163 may be provided with a second latching groove 1631 that engages with the latching protrusion 1622, and the knob 163 can be connected to the connector 162 by the latching protrusion 1622 engaging into the second latching groove 1631. In some embodiments, the cover 16 is not limited to a flip cover, and it may be a separate structure from the body 10, with the two being detachably connected. In some other embodiments, the cover 16 may also be omitted.
[0045] In some embodiments, the body 10 is provided with a pump core assembly (not shown), which may include a power pump and a main board, etc. The pump core assembly (not shown) may be installed in the receiving cavity 14 for pumping water to the nozzle 30.
[0046] In some embodiments, the oral irrigator further includes a water storage structure 20, which can be sleeved on at least a portion of the outer periphery of the body 10. The water storage structure 20 is a hollow structure with a sleeve at one end, and its inner side can define a water storage cavity 21. The water storage cavity 21 can be located at the end of the body 10 with a second opening 12, that is, the second opening 12 can be oriented towards the water storage cavity 21. When water is injected into the water storage cavity 21, the first opening 11, the cavity 13, and the second opening 12 are sequentially connected to form a water injection channel, that is, the first opening 11 can form a water inlet. In some embodiments, the water storage structure 20 and the body 10 can be detachable structures, and the two can be fixed by interference fit and / or snap-fit. In other embodiments, the water storage structure 20 and the body 10 can be integrally molded structures, and the two can be integrally molded by injection molding.
[0047] like Figure 6 As shown, in some embodiments, the nozzle 30 can be detachably connected to the pump core assembly (not shown). Specifically, it can be fixed to the pump core assembly (not shown) by a snap-fit or a threaded connection. When the water flosser is not in use, the nozzle 30 can be detached from the pump core assembly (not shown) and stored at least partially in the cavity 13 through the first opening 11. During storage, the nozzle head of the nozzle 30 can be inserted into the cavity 13 through the first opening 11 to prevent the nozzle 30 from getting dirty and to maintain the cleanliness of the nozzle 30. When the water flosser needs to be used, the nozzle 30 can be pulled out from the cavity 13 into the first opening 11 and then assembled with the pump core assembly (not shown).
[0048] like Figure 7 and Figure 8 As shown, in some embodiments, the concentrated mouthwash supply mechanism 40 may include a first cylinder 41, a second cylinder 42, and a drive assembly 43. The first cylinder 41 can be used to store concentrated mouthwash, and the second cylinder 42 may be coaxially arranged with the first cylinder 41 and rotatably arranged relative to the first cylinder 41. The drive assembly 43 may be disposed in the second cylinder 42 and the first cylinder 41, and is connected to the second cylinder 42. When the second cylinder 42 rotates, it can drive the concentrated mouthwash in the first cylinder 41 to be discharged.
[0049] In some embodiments, the cross-section of the first cylindrical body 41 is generally circular, and the outer diameter of the portion of the first cylindrical body 41 away from the second cylindrical body 42 gradually decreases in the direction away from the second cylindrical body 42. Specifically, the first cylindrical body 41 may include a first pipe segment 41a and a second pipe segment 41b; the first pipe segment 41a is generally cylindrical, and the second pipe segment 41b is disposed at one end of the first pipe segment 41a, and its radial dimension gradually decreases in the direction away from the first pipe segment 41a. In some embodiments, the first pipe segment 41a and the second pipe segment 41b may be integrally formed. In other embodiments, the first cylindrical body 41 may not be limited to including the first pipe segment 41a and the second pipe segment 41b; in other embodiments, the first pipe segment 41a and the second pipe segment 41b may also be separate structures.
[0050] The first cylindrical body 41 is a hollow structure with both ends open, and a liquid storage chamber 411 can be formed inside it, which can be used to store concentrated mouthwash. One end of the first cylindrical body 41 can be provided with a liquid outlet 412, which communicates with the liquid storage chamber 411. When the concentrated mouthwash supply mechanism 40 is installed on the main body 10, the liquid outlet 412 can face the second opening 12. The diameter of the liquid outlet 412 is smaller than the diameter of the second opening 12, and the diameter of the liquid outlet 412 is such that concentrated mouthwash can only be output when the concentrated mouthwash in the liquid storage chamber 412 is squeezed. It should be noted that the concentrated mouthwash in the liquid storage chamber 411 can only be output from the liquid outlet 412 under the drive of the drive component 43. When the concentrated mouthwash in the liquid storage chamber 411 is not pressurized, the internal pressure of the liquid storage chamber 411 is lower than the external pressure, and the concentrated mouthwash in the liquid storage chamber 411 cannot flow out from the liquid outlet 412.
[0051] The second cylindrical body 42 can be partially inserted into the first cylindrical body 41. Specifically, the second cylindrical body 42 may include a main body 421, which may include a first columnar portion 421a and a second columnar portion 421b. The second columnar portion 421b may be disposed at one end of the first columnar portion 421a. Both the first columnar portion 421a and the second columnar portion 421b are cylindrical, wherein the outer diameter of the first columnar portion 421a is approximately equal to the outer diameter of the first pipe section 41a of the first cylindrical body 41. The outer diameter of the second columnar portion 421b is smaller than the outer diameter of the first columnar portion 421a, and it can be adapted to the inner diameter of the first pipe section 41a. The second columnar portion 421b can be inserted into the first cylindrical body 41, specifically, it can be inserted into the first pipe section 41a, and it has a clearance fit with the first pipe section 41a. The main body 421 is a hollow structure with one end open and the other end having an end wall, that is, the first columnar part 421a and the second columnar part 421b are connected.
[0052] In some embodiments, a connecting protrusion 422 is provided at one end of the second cylindrical body 42. The connecting protrusion 422 may be provided at the end of the first columnar portion 421a of the main body portion 421 away from the second columnar portion 421b, and can be used to connect with the connector 162 of the knob mechanism. Specifically, the connecting protrusion 422 may be engaged in the first engaging groove 1621 of the connector 162. The rotation of the knob 163 of the knob mechanism drives the second cylindrical body 42 to rotate relative to the first cylindrical body 41 through the connector 162.
[0053] In some embodiments, the drive assembly 43 may include a threaded sleeve 431 and a stud 432. The threaded sleeve 431 may be disposed in the second cylinder 42, coaxially disposed with the second cylinder 42, and fixedly connected to the second cylinder 42. When the second cylinder 42 rotates, it can drive the threaded sleeve 431 to rotate. The stud 432 may be disposed in the second cylinder 42, and the threaded sleeve 431 may be sleeved on the outer periphery of a portion of the stud 432 and screwed to the stud 432. When the threaded sleeve 431 rotates, it can drive the stud 432 to reciprocate along the axial direction of the second cylinder 42. One end of the stud 432 that protrudes from the threaded sleeve 431 is connected to a push plate 4321. The push plate 4321 may be inserted into the liquid storage chamber 411. The push plate 4321 may be driven by the stud to reciprocate along the axial direction in the liquid storage chamber 411, thereby pushing the concentrated mouthwash in the liquid storage chamber 411 out of the liquid outlet 412 when moving closer to the liquid outlet 412.
[0054] In some embodiments, the concentrated mouthwash supply mechanism 40 can provide a quantitative supply of mouthwash. Generally, the concentrated mouthwash supply mechanism 40 outputs a set amount of concentrated mouthwash for each rotation of a set angle. In some embodiments, a chuck 44 may be provided in the first cylinder 41. The chuck 44 may be generally annular and may be coaxially arranged with the first cylinder 41. Specifically, the chuck 44 may be disposed in the first tube section 41a and located at one end of the second cylinder 42. A plurality of first teeth 441 may be provided at the end of the chuck 44 facing the second cylinder 42, and the plurality of first teeth 441 may be spaced apart circumferentially along the chuck 44. A plurality of second teeth 4211 are provided at one end of the second cylinder 42. Specifically, the plurality of second teeth 4211 may be disposed at the end of the second columnar portion 421b away from the first columnar portion 421a, and may be arranged circumferentially along the second cylinder 42. The plurality of second teeth 4211 can engage with the plurality of first teeth 441, so that when the second cylinder 42 rotates, concentrated mouthwash is dispensed in a metered manner. Each time the second cylinder 42 rotates one tooth in the first direction, it can drive the stud 432 to move a set distance toward the outlet 412, thereby dispensing concentrated mouthwash in a metered manner.
[0055] In some embodiments, the concentrated mouthwash supply mechanism 40 further includes a sealing structure 45, which can be a sealing ring that can be fitted around the outer periphery of the second columnar portion 421b of the second cylinder 42 and located in the middle of the first cylinder 41 to seal the gap between the first cylinder 41 and the second cylinder 42.
[0056] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.
Claims
1. An oral irrigator characterized by, The oral irrigator comprises a body (10), a nozzle (30) detachably connected with the body (10), and a concentrated mouthwash supply mechanism (40) detachably installed in the body (10); the inside of the body (10) is provided with a cavity (13), the body (10) further comprises a first opening (11) and a second opening (12) oppositely arranged with the first opening (11); the first opening (11) is in communication with the cavity (13) to form a water injection port when the oral irrigator injects water, the nozzle (30) passes through and is accommodated in the cavity (13) when the nozzle (30) is accommodated, and the concentrated mouthwash supply mechanism (40) passes through and is installed in the cavity (13) when the concentrated mouthwash supply mechanism (40) is installed; the second opening (12) is in communication with the cavity (13).
2. The waterpik of claim 1, wherein, The oral irrigator further comprises a water storage cavity (21); The second opening (12) faces the water storage cavity (21); When water is injected into the water storage cavity (21), the first opening (11), the cavity (13) and the second opening (12) are sequentially communicated to form a water injection channel.
3. The oral irrigator of claim 2, wherein, The cavity (13) forms an installation cavity of the concentrated mouthwash supply mechanism (40); the second opening (12) forms a water outlet for outputting concentrated mouthwash to the water storage cavity (21); The concentrated mouthwash supply mechanism (40) comprises a first cylinder (41), a second cylinder (42) and a driving assembly (43); The inside of the first cylinder (41) is formed with a liquid storage cavity (411), and one end of the first cylinder (41) is provided with a liquid outlet (412) in communication with the liquid storage cavity (411); The second cylinder (42) is coaxially arranged with the first cylinder (41) and rotates relative to the first cylinder (41); The driving assembly (43) comprises a sleeve (431) and a stud (432); the sleeve (431) is arranged in the second cylinder (42), coaxially arranged with the second cylinder (42) and fixedly connected with the second cylinder (42), the sleeve (431) is sleeved on the outer periphery of part of the stud (432) and is screwed with the stud (432); one end of the stud (432) penetrating through the sleeve (431) is connected with a push plate (4321); the push plate (4321) is driven by the stud (432) to reciprocate in the liquid storage cavity (411) along the axial direction, so as to push the concentrated mouthwash in the liquid storage cavity (411) out of the liquid outlet (412).
4. The oral irrigator of claim 3, wherein, The first cylinder (41) is provided with a chuck (44), a plurality of first tooth portions (441) are arranged on one end of the chuck (44) facing the second cylinder (42), and the plurality of first tooth portions (441) are arranged at intervals along the circumference of the chuck (44); A plurality of second tooth portions (4211) are arranged at one end of the second cylinder (42) and are arranged at intervals along the circumference of the second cylinder (42) and are engaged with the plurality of first tooth portions (441), so that the concentrated mouthwash is quantitatively output when the second cylinder (42) rotates.
5. The waterpik of claim 1, wherein, A limiting and fixing structure (15) is arranged in the cavity (13) to limit and / or fix the nozzle (30) or the concentrated mouthwash supply mechanism (40).
6. The waterpik of claim 1, wherein, The oral irrigator further comprises a cover (16) covering the first opening (11).
7. The oral irrigator of claim 6, wherein, The cover (16) is connected with the concentrated mouthwash supply mechanism (40).
8. The oral irrigator of claim 7, wherein, The concentrated mouthwash supply mechanism (40) comprises a second cylinder (42), and the cover (16) is provided with a rotating mechanism connected with the second cylinder (42).
9. The oral irrigator of claim 8, wherein, One end of the second cylinder (42) is provided with a connecting convex portion (422). The rotating mechanism comprises a knob (163) and a connecting piece (162) fixedly connected with the knob (163) and the connecting convex portion (422).
10. The waterpik of claim 1, wherein, The body (10) is provided with a pump core assembly, and the nozzle (30) is detachably connected with the pump core assembly.