JPS5943178B2 - oral cleaning device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses high-pressure pulsating fluid to drive a toothbrush and eject a jet of water at the same time.
The present invention relates to an oral cavity cleaning device that is characterized in that it can effectively prevent tooth decay by removing foreign substances and prevent and treat alveolar pyorrhea by pine surge effect in a short period of time.

In general, there are two types of oral cleaning devices: a toothbrush type and a type that sprays high aqua regia obtained using a pump device from the nozzle tip.The former toothbrush type is easy to use and has an excellent effect on removing plaque. However, due to its structure, it has the disadvantage that plaque and foreign matter remain in areas that are difficult to reach with the brush, such as between teeth.

On the other hand, the latter type, which sprays high-pressure water, is excellent at removing foreign substances such as food particles that get stuck between the teeth and between the teeth and gums, and also improves blood circulation in the gums with a pulsating jet. Although it is effective in preventing and treating alveolar pyorrhea, unfortunately, it is less effective and insufficient in removing plaque attached to the tooth surface.

In this way, there are advantages and disadvantages to both, and as seen in reports from the Oral Hygiene Society, etc., in order to obtain a satisfactory cleaning effect,
It is necessary to use both together.

By the way, using both of the above separately is not only time consuming but also extremely troublesome.

In addition, manual toothbrushes have problems such as individual differences in cleaning effectiveness and tiring hands.

Recently, electric toothbrushes that move automatically have become available on the market, but in order to obtain a satisfactory cleaning effect, it is necessary to use a high-pressure water jet type in combination with an electric toothbrush, as mentioned above. Therefore, it is not effective in saving time or reducing trouble, and it is a heavy economic burden to have expensive products such as a high aqua regia injection type and an electric brush.

Moreover, the storage space for these devices is relatively small in the washrooms of ordinary homes, and it takes a considerable amount of space to equip and use each of the above devices, which is inconvenient.

Furthermore, products that integrate a high-pressure water jet type and an electric brush, and those that combine a high-regia water jet and a water-pressure driven brush have been devised, but these are both picks with nozzles for high-pressure water jets, , prepare two types of toothbrushes separately,
As mentioned above, in order to improve the cleaning effect, it is necessary to replace both of them, which not only causes the trouble of attaching and detaching them, but also takes time and is inefficient.

For this reason, the user ends up using only one of the two functions, and in practice, the two functions are hardly able to exhibit their effects.

Furthermore, a major drawback is that if only a high-pressure jet is used and no toothbrush is used, as mentioned above, plaque removal is insufficient, so it is not useful for preventing tooth fatigue.

From this point of view, the integrated toothbrush and toothpick type that requires replacing the toothbrush and picks imposes unnecessary trouble and financial burden on the user. It cannot be fully effective.

Furthermore, it is clear that problems such as dental problems may occur even though the user constantly uses the product.

The present invention solves the above-mentioned drawbacks at once, and provides an oral cavity cleaning device that has a satisfactory oral cavity cleaning effect and a gum surge effect in an extremely short period of time.

In addition, the present invention provides a reliable cleaning effect using a toothbrush and a pulsating jet stream to remove plaque and remove plaque from the teeth, even for an unspecified number of users.
To provide an oral cavity cleaning device configured to exhibit a foreign body removal effect and a pine surge effect.

Furthermore, the present invention not only does not cause any trouble or inefficiency to an unspecified number of users when using it, but also allows it to be used more easily and reliably than any of the above types.
An object of the present invention is to provide an oral cavity cleaner that can clean extremely efficiently in a short period of time.

The present invention provides an oral cavity cleaning device which has excellent advantages and novelty as described above, and which makes a great contribution to oral cavity cleaning.

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the external configuration of the present invention.

In the figure, a pump device 1 for generating a high pressure pulsating flow is connected to a toothbrush unit 3 by a single flexible conduit 2 .

The flexible conduit 2 connects the pump device 1 and the toothbrush unit 3.
There is a reciprocating flow path for high-pressure pulsating flow between the two.

The pump device 1 includes a water tank 4, a pump inside an outer case 5, and a driving section.

The exterior case 5 is provided with an operating knob 6 for a power switch, a flexible conduit 2, and a holding section 7 for the toothbrush section unit 3.

A lid 4' is provided on the top of the water tank 4 to keep the inside of the water tank 4 clean when not in use.

A toothbrush 8 capable of ejecting a high-pressure pulsating jet is detachably inserted into the toothbrush unit 3.

In addition, during actual use, it is desirable to adjust the flow rate of the pulsating jet ejected from the toothbrush 8. While gripping the toothbrush unit 3, the case 9 is placed so that it can be easily rotated with the thumb and eight fingers. , a flow rate adjustment knob 10 is provided near the toothbrush 8.

In actual use, after inserting the toothbrush 8 into the toothbrush unit 3 and supplying water to the water tank 4, turn the operating knob 6 to turn on the power.The pump device 1 generates a high-pressure pulsating flow. The toothbrush 8 is driven by supplying the pulsating flow to the toothbrush section unit 3 via the flexible conduit 2.

By operating the flow rate control knob 10, the toothbrush 8 can be driven while ejecting a pulsating jet from the toothbrush 8, and the aforementioned toothbrush 8 and high aqua regia jet can be used simultaneously, ensuring that both functions are exerted. , it is possible to obtain the desired excellent cleaning effect and pine surge effect.

Normally, the cleaning effect is sufficient with just water, but if water brushing or the like is added to the water supply, a refreshing feeling can be obtained after cleaning.

Also, if you want to use kneaded brushing due to your habits, you can set the flow rate of the pulsating jet ejected from the toothbrush 8 to O using the flow rate adjustment knob 10, and the toothbrush becomes a stand-alone toothbrush, which can be used like a conventional electric toothbrush. 1
Since the toothbrush 8 can be driven while adding a pulsating jet by 0, the above-mentioned functions are not hindered, and it is possible to provide an excellent cleaning effect and pine surge effect to an unspecified number of users in a reliable and simple manner. be.

FIGS. 2 and 3 specifically show the structure of the pump device.

Normally, the water tank 4 is provided with a filter 41 for filtering out foreign substances in the wash water, and a valve 42 made of a ball is provided at the water supply port to prevent leakage during water supply.

When the water tank 4 is placed on the upper part of the case 5 and its water supply port is inserted into the insertion part 51 formed on the upper part of the case 5, the valve pushing part 52 provided on the insertion part 51 pushes up the valve 42 and inserts it. Cleaning water flows into the pump chamber 44 provided below the dressing part 51.

A sealing material 43 is provided between the water tank 4 and the insertion part 51 of the case 5.
This prevents leakage.

A check valve 45 is provided above the pump chamber 44,
During suction into the pump chamber 44, the upper check valve 45 is lowered, and cleaning water flows in from the gap between the check valve 45 and the valve seat 46 above it.

Also, during discharge, the check valve 45 rises from below the pump chamber 44 and forms a close seal with the valve seat 46.
The pressurized wash water within is discharged through a flexible conduit 2'.

By repeating this stroke, a high pressure pulsating flow is supplied from the pump device 1 to the toothbrush unit 3 via the flexible conduit 2.

The piston part in the pump chamber 44 has a piston valve 53 made of an elastic material such as a folded velofram, which is held by a retainer plate 47 which also serves to prevent eccentricity of the Vinton valve 53 on the tip attachment part 48 of the piston rod 50. It is configured to be fixed with screws 49.

The retainer plate 47 has an outer periphery connected to the pump case 64.
Since it is brought into light contact with the inside of the piston valve 53, there is no eccentricity, and the repeat durability of the piston valve 53 is improved, which has a significant effect on the durability of the device in this structure.

Further, the piston valve 53 is sandwiched and fixed around its periphery by pump cases 64 and 65, and forms a part of the pump chamber 44.

The torque of the drive motor 54 is increased to a magnitude corresponding to the reduction ratio by the drive pinion 56 fixed to the shaft 55 and the driven gear 5T.

The aforementioned piston portion rotates simultaneously with the driven gear 57, and performs reciprocating motion with a stroke corresponding to twice the amount of eccentricity due to the eccentric portion 58 that is eccentric with respect to the center axis 59.

In response to the movement of this piston part, the check valve 45 moves up and down,
A pulsating pressure is created in the pump chamber 44 and the high pressure pulsating flow is supplied to the toothbrush unit 3 via the flexible conduits 2', 2.

In order to simplify assembly and stabilize the starting torque, the driven gear 57 and the eccentric part 58 are made to rotate simultaneously, and their center shaft 59 is press-fitted into a frame 61 and held by another frame 60.

This structure not only simplifies assembly and reduces component costs, but also ensures the most important accuracy.
This has the advantage that the starting torque of the motor 54 can be kept low.

In addition, the impact of toothbrushes on teeth and gums, cleaning effects,
From the point of view of usability, it is desirable that the toothbrush's sliding speed be approximately 2,000 cycles per minute or less, and in order to set the appropriate number of reciprocations and torque of the piston part, taking into consideration the market needs for reducing the power consumption of the device. , a combination of the drive motor 54 and a speed reduction mechanism with an appropriate speed reduction ratio is required.

In the embodiment shown in FIG. 2, the speed is reduced by one gear.

A bending moment acts on the frame 61 due to the unbalanced load at the time of pulsation, which causes vibrations in the mechanism section in the direction of movement of the piston section.

In order to reduce vibration and noise of the product, the frame 61 and case 64 of the pump section are covered with cushioning materials 66 and 67, respectively.
It is elastically held in the exterior case 5.

A power switch 62 is shown for reference.

As explained above, the present invention connects the pump device 1 and the toothbrush section unit 3, and the toothbrush section unit 3 is composed of a hydraulic pressure operation section, a motion transmission section, a motion conversion section, and a flow rate adjustment section, These related high-pressure fluid flow rate adjustment configurations are distinctive.

Next, the toothbrush section unit 3 will be explained with reference to FIGS. 4 to 8 showing examples.

A chamber 15 is provided in the lower part of the case 9 of the toothbrush unit 3 through which a high-pressure pulsating flow enters and exits via the flexible conduit 2 and the water passage 14.

This chamber 15 is constructed by attaching a member 12 with a water passage 14 and a seal 11.

A valve body 16 is provided in the upper part of the chamber 15, and a taper valve 18 provided at one end of the valve body 16 and a valve seat portion 17 of the case 9 constitute a valve portion for adjusting the flow rate.

The valve body 16 is pressed by a spring 19 so that the taper valve 18 and the valve seat portion 17 are always in contact with each other.

Further, the valve body 16 is provided so that the contact force with the valve seat portion 17 increases in response to positive fluid pressure generated in the chamber 15.

Thereby, stable flow rate adjustment can be performed in response to changes in pulse rate occurring in the chamber 15.

The flow rate is adjusted using the flow rate adjustment knob 10 provided on the top of the case.
, to move the valve pressing rod 24 up and down, and to move the valve body 16 located at the bottom of this valve pressing rod 24 up and down,
By changing the gap between the taper valve 18 and the valve seat portion 17, the flow rate flowing out from the jet port 35' of the toothbrush 8 can be adjusted arbitrarily from 0 to the maximum.

During use, the flow rate adjustment knob 10 rotates around the outer periphery of the holding member 21 that holds the motion transmission member 33 that drives the toothbrush 8 and the spring 68 that presses the first actuating piston of the hydraulic actuator. It is inserted so that it can be easily rotated with the finger or thumb.

In addition, in order to reduce vertical play in the axial direction during rotation, the case lid 23 is restricted from above via a washer 22.

The valve pressing rod 24 is provided to convert the rotational force of the flow rate adjustment knob 10 into vertical movement of the valve body 16.

The valve pressing rod 24 has an internal thread 20 partially formed at its upper end screwed into a threaded portion 20' provided on the lower outer periphery of the flow rate adjustment knob 10.
The valve pressing portion 26 at the lower end of always comes into contact with the end surface of the valve body 16,
Case 90) 0 so that it slides using a part of the inner wall as a guide.
It is inserted through a ring 25.

In Fig. 4, in order to make the case 9 more compact, the axis of the insertion part of the valve pressing rod 24Q) 0-ring 25 and the axis of the valve pressing part 26 are not aligned, but this does not pose any problem in adjustment. .

In the above-described configuration, when the flow rate adjustment knob 10 is rotated, the flow rate adjustment section is configured so that the threaded portion 20' of the knob 10 is rotated.
The valve pressing rod 24, which is partially screwed together, moves the valve body 16 up and down to change the passageway between the taper valve 18 and the valve seat 17, and adjust the flow rate from the jet port 35' of the toothbrush 8. be able to.

Further, if a stopper or the like is provided between the flow rate adjustment knob 10 and the case 9 to regulate the flow rate, the upper end of the valve pressing rod 24 will come into contact with the end surface of the knob 10 due to rotation more than necessary.
It is possible to easily prevent damage or deformation due to an abnormal load being applied to the fitting portion of the threaded portions 20 and 20'.

Next, the structure of the passage through which the pulsating high-pressure fluid that has flowed into the chamber 15 passes through the passage 35 of the toothbrush 8 and flows out from the jet port 35' will be described.

When a water passage corresponding to the rotation angle of the flow rate control knob 10 is formed between the taper valve 18 and the valve seat part 11 by the flow rate adjustment part, the passage from the chamber 15 to the side of this chamber and the valve pressing part is formed. 26 and the OIJ song 5, a water passage hole 27 provided in the case 9, a side hole 29 of the cylinder 28 that constitutes a hydraulic actuating section, which will be described later, and an actuating piston 30 provided in the cylinder 28. It flows into the piston chamber 31 formed by the cylinder 28 and the sealing material 28 .

A water passage hole 32 is formed in the working piston 30 passing through the center from the side, and a motion transmitting member 33 having a water passage 34 is substantially coaxially integrated with the working piston 30, and the water passage The piston chamber 31 and the water passage 34 of the motion transmission member 33 are configured to communicate through the hole 32 .

A toothbrush 8 having a water passage 35 and a jet port 35' is inserted into the distal end portion 36 of the motion transmission member 33 via an O-ring 37.

With the above configuration, the chamber 15 and the jet port 3 of the toothbrush 8
5', and therefore, the pulsating polymer fluid flows through the passageway 14 of the member 12 in accordance with the rotational adjustment of the flow rate adjustment knob 10.
It flows into the piston chamber 31 via the chamber 15, the water passage between the taper valve 18 and the valve seat 17, the water hole 27 of the case 9, and the side hole 29 of the cylinder 28, and then flows into the piston chamber 31 through the water hole of the working piston 30. 32, passes through the water passage 34 of the motion transmission member 33 and the water passage 35 of the toothbrush 8, and is ejected from the jet port 35'.

According to the configuration of the water passage as described above, when brushing teeth, the flow rate can be easily adjusted with the thumb or eight fingers while the toothbrush 8 is inserted into the oral cavity, and not only can one-handed operation be simplified during cleaning, It is also possible to completely stop the jet from the jet nozzle 35' of the toothbrush 8 and use only the toothbrush 8 as described later.

Next, regarding the structure and operation of the hydraulic pressure operating section and the motion transmission member 33, we will take as an example the case where the jet from the jet port 35' of the toothbrush 8 is completely stopped and only the toothbrush is used as described above. Description 0 The hydraulic pressure operating section responds to the pulsating fluid pressure supplied from the pump device 1 to the chamber 15 via the flexible conduit 2 to transmit the motion transmitting member 33 and the toothbrush inserted into the member 33. 8.

Cylinder 28, operating piston 30, and a sealing material 38 that is inserted into the piston 30 and abuts the inside of the cylinder 28.
This constitutes the hydraulic pressure operating section.

Further, the operating piston 30 has a pressure receiving surface 71 formed at its lower end, and this pressure receiving surface 11 faces the chamber 15 .

That is, in this embodiment, the chamber 15 that communicates with the flow rate adjustment section and the hydraulic pressure operation section is connected to the operation piston 30.
is in contact with the pressure receiving surface 11 of.

Two seal members 38 are inserted into the operating piston 30 and slide on the inner wall surface of the cylinder 28.

In this embodiment, the cylinder 28 is inserted and held in the case 9 via O-rings 39 and 40, with any sliding member being a separate piece.

Further, the operating piston 30 is urged by a spring 68 with the holding member 21 as a seat so as to resist the pulsating fluid pressure constantly acting on the pressure receiving surface 71.

This is to quickly return the actuating piston 30 when the pulsating fluid pressure generated within the chamber 15 falls.

Therefore, when the spring 68 is set to respond to the pulsation period of the fluid, the actuating piston 30
The spring 6 receives a force corresponding to the effective action area of 1.
8 to a position corresponding to the peak value of the pulsating fluid pressure.

Further, the return of the operating piston 30 is performed by the spring 6 mentioned above.
8.

In this manner, the actuating piston 30 reciprocates in response to the pulsating fluid pressure generated in the chamber 15, driving the motion transmitting member 33 as well as the toothbrush 8 inserted in the member 33.

The operation when only the toothbrush is used by completely stopping the jet stream from the jet port 35' of the toothbrush 8 has been briefly described above, but will be specifically described below.

The high pressure pulsating fluid is generated by the pumping device shown in FIGS. 1 and 3, and thus is a cycle of positive pressure and negative or zero pressure.

Therefore, when the pressure is negative or zero, that is, the pump chamber 4
4 during the suction stroke, the biasing of the spring 68 causes the actuating piston 30 to be depressed and force the fluid in the chamber 15 back into the pump chamber through the flexible conduit 2.

Here, at first glance, water seems to flow into the pump chamber 44 from the water tank 4, but the water in the pump chamber 4 is under only atmospheric pressure, while the water in the chamber 15 is under the pressure of the piston 30.
is biased downward by the spring 68, so there is a positive pressure.

Therefore, when the piston section of the pump is in the water suction process, that is, when the piston section is in the downward state, water does not flow from the water tank 4, and water in the chamber 15 flows through the flexible conduit 2-. It is pushed back into the pump chamber 4.

The setting of the spring 68 allows the piston 30 to operate sufficiently even when the pulsating fluid pressure generated in the chamber 15 is not only a positive and negative sinusoidal periodic pressure, but also a period king state where the pressure is extremely small compared to the positive pressure. Upon return due to the biasing load, the pressure in the chamber 15 becomes positive.

Further, considering the case where a water passage is formed between the taper valve 18 and the valve seat portion 11, the spring 68 not only accelerates the return of the working piston 30, but also Pushing out water from the water passage between section 17,
Water hole 27, side hole 29, water hole 32, water passage 34°35
It has a pump function that assists the jet of pulsating fluid from the jet port 35' of the toothbrush 8 through.

In this embodiment, the inner diameter of the cylinder 28 is made the same as that of the piston chamber 31 so that the pulsating fluid pressure generated in the piston chamber 31 does not affect the driving force of the actuating piston 30.

Further, in order to impart reciprocating spiral motion to the toothbrush 8, a motion converting section is provided in the hydraulic pressure operating section and the motion transmitting member.

The motion converting section is composed of a helical guider γ0, an operating piston 30, a motion transmitting member 33, and a member 69 that imparts rotation to the piston 30 and the member 33.

This will be explained below. The actuating piston 30 is provided with at least one pair of members 69 that provide rotation, and are engaged with a pair of helical guide grooves 73 of the helical guider 70 .

The helical guider 70 is in partial contact with the cylinder 28 and is fixed from above by the holding member 21.

It also serves as a guide for the spring 68.

As the actuating piston 30 moves up and down, the member 69 is forced to engage with the guide groove 73, so that the actuating piston 30 performs a helical reciprocating movement and the motion transmitting member connected to the actuating pin 30 is forced to engage with the guide groove 73. 33 and the toothbrush 8 inserted into the member 33 necessarily perform a spiral reciprocating motion.

As described above, the present invention regulates the pulsating high-pressure fluid supplied from the pump device 1 to the toothbrush section unit 3 via the flexible conduit 2 to an arbitrary flow rate in the flow rate adjusting section, and the jet of the toothbrush 8 While ejecting from the mouth 35', a spiral reciprocating motion is given to the toothbrush 8 in response to the pulsating fluid pressure by the configuration of the hydraulic pressure operating section, the motion transmitting section, and the motion converting section.

The brushing effect of a toothbrush and the pulsating jet water flow can easily and reliably provide the cleaning effect of a toothbrush to an unspecified number of users, and remove plaque and plaque from the pulsating water jet.
It has the effect of removing foreign substances and pine surge, and does not cause any trouble or inefficiency when using it.
It is possible to provide an oral cleaning device that can be used easily and reliably, can be cleaned extremely efficiently in a short period of time, and can exhibit extremely excellent cleaning effects, making a great contribution to the field of oral cleaning. be.

In particular, the hydraulic pressure operating part and the motion transmission part driven in connection with this, for driving the toothbrush, and the flow rate of the ejected high and low fluid can be adjusted to adjust the desired ejection amount and the amount of rotation of the toothbrush, The adjustment knob can be easily operated with fingers, making it convenient to handle.

[Brief explanation of the drawing]

FIG. 1 is a side view of an oral cavity cleaning device according to an embodiment of the present invention, and FIG.
The figure is a sectional view of the pump device, FIG. 3 is a sectional view of the main part of the pump device, FIG. 4 is a sectional view of the toothbrush unit, FIG. 5 is a perspective view of the valve pressing rod, and FIG. 6 is the operation. FIG. 7 is a perspective view of the piston, FIG. 7 is a sectional view of the toothbrush, and FIG. 8 is a perspective view of the spiral guider. 1... Pump device, 2... Flexible conduit,
3... Toothbrush unit, 4... Water tank, 5... Exterior case, 6... Operation knob, 8... Toothbrush, 9 ......Case, 10...Flow rate adjustment knob, 15...
Chamber, 16... Valve body, 17... Valve seat part,
18...Taper valve, 24...Valve pressing rod, 27...Water hole, 28...Cylinder, 29...Side hole , 30... Working piston, 31... Piston chamber, 32...
...Water port, 33...Motion transmission member, 34...
...Waterway, 35...Waterway, 35'...
... Jet port, 70 ... Spiral guider, 71.
...King face, 73...Guide groove.

Claims (1)

[Scope of Claims] 1. A pump device comprising a water storage tank and a pump for supplying high-pressure pulsating fluid, and a liquid pressure device connected to the pump device through a flexible conduit and reciprocating in response to pressure changes of the high-pressure pulsating fluid. an actuating part; a brush unit comprising a member driven by the actuating part and transmitting motion to the toothbrush; a water passage leading from the hydraulic actuating part to the toothbrush to eject high-pressure pulsating fluid from the toothbrush; An oral cavity cleaner equipped with a flow rate adjustment device comprising a valve body, a valve body pressing rod, and an adjusting member that drives the valve body pressing rod. 2. The oral cavity cleaning device according to claim 1, wherein the hydraulic pressure operating part includes a piston, and the piston and the motion transmission member connected to the piston are provided with a passageway leading to the toothbrush. 3. The oral cavity cleaning device according to claim 1, wherein the piston or the motion transmitting member is configured to engage with a motion converting portion made of a spiral guider, convert reciprocating motion into rolling motion, and transmit the motion to the toothbrush. . 4. The oral cavity according to claim 1, wherein the adjusting member of the flow rate adjusting device is provided at the toothbrush side end of the brush unit and is configured to displace the valve pressing rod by rotating. Cleaning device. 5. The oral cavity cleaner according to claim 1, wherein the adjustment member of the flow rate adjustment device is provided coaxially with the motion transmission member and rotatably provided. 6. The flow rate adjustment device is composed of a valve part, a valve pusher rod, and an adjusting member, and the valve part is made up of a valve body, a valve seat provided in a case, and a spring that presses the valve body so that it always comes into contact with the valve seat. Patent No. 0 7 The flow rate regulating device is composed of a valve part, a valve pressing rod, and an adjusting member, and presses the valve disc, a valve seat provided in a case, and the valve disc so that they are always in contact with each other. Claim 1, characterized in that it has a valve part made of a spring, and a valve body is provided so that the force of contact with the valve seat increases in response to positive liquid pressure acting on the actuating part. Oral cleaning device according to item 3. 8 The flow rate adjustment device is composed of a valve part, a valve pressing rod, and an adjusting member, and the valve part, which is made of a valve part and a spring that presses the valve disc so that it always comes into contact with the valve seat, is controlled by the pressure acting on the front operating part. The oral cavity cleaning device according to claim 6, characterized in that the device is provided in a part of the chamber into which liquid flows. 9. The flow rate adjustment device is composed of a valve part, a valve pressing rod, and an adjusting member, and the valve part is made of a valve part and a spring that presses the valve disc so that it always comes into contact with the valve seat, and the operating part;
The oral cavity cleaning device according to claim 1, wherein the oral cavity cleaning device is provided in a chamber that is formed at least partially with a member that connects the flexible conduit. 10 The flow rate adjustment device is composed of a valve part, a valve body pressing rod, and an adjustment member, and is engaged with a part of the outer periphery of the adjustment member that is rotatably inserted coaxially with the moving member, and by rotation of the adjustment member. . The oral cavity cleaner according to claim 1 of the patent, characterized in that the valve body pressing rod is slid to change the flow path of the valve portion to adjust the flow rate. 11 The flow rate adjustment device is composed of a valve part, a valve pressing rod, and an adjusting member. at least a portion of
The oral cavity cleaning device according to claim 1, characterized in that the mouth cleaning device is adapted to be regulated.