JPS586406Y2 - Water-connected oral hygiene device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an oral hygiene device that discharges liquid into the oral cavity to clean the oral cavity and to massage the gums.

Conventionally, this type of oral hygiene device has a tank that stores liquid, a pump that energizes the liquid in the tank, a motor that drives the pump, and a device that discharges the energized liquid into the oral cavity. It consisted of a nozzle.

Therefore, since conventional oral hygiene devices must be equipped with a tank and a pump, as well as a motor to drive the pump, there is a limit to how simple the overall purchase can be. It was extremely difficult to achieve weight reduction.

Therefore, conventional oral hygiene devices not only have a complicated structure, require a lot of effort to assemble and crush, and are expensive.
The drawback was that it was inconvenient to handle.

Therefore, in order to solve these drawbacks, we devised an oral hygiene device that is directly connected to the water supply, as shown in FIG. 1 (filed on June 22, 1978).

What is indicated by the symbol A in FIG. 1 is a faucet connector that is attached to a water faucet.

The tap water taken in from the faucet connector A is sent to the nozzle C through a water channel B, which is not shown in two parts.

The tap water sent to the nozzle C is discharged from the nozzle C into the oral cavity by the tap pressure.

A valve mechanism is provided in the middle of the waterway B, and opens and closes the waterway B periodically.

The valve mechanism is operated by a motor E.

The faucet connector A described above consists of a socket 1 and a soft rubber 2.

Socket 1 has a cylindrical shape with a garden. A tube attachment protrusion 1a is formed outward at the center of the bottom, and the protrusion 1a
An intake hole a is drilled in the center.

The above-mentioned soft rubber 2 is applied to the inner surface of the socket 1 except for the intake hole a.

Then, such a faucet connector A is attached so as to cover the water faucet, and is connected to a water pipe so that tap water can be taken in.

At that time, the soft rubber 2 is compressed between the water faucet and the socket 1, and leakage of tap water is prevented.

A flexible tube 3 is attached to the protrusion 1a of the socket 1.
One end of is attached and fixed by a retaining ring 4.

The other end of the tube 3 is fixed to the case body 5 side.

The case body 5 is formed in a cylindrical shape, and has a first chamber 5a inside.
- Has a second chamber 5b and a third chamber 5c.

A housing 6 is housed in the first chamber 5a.

Housing 6 (consisting of a cylindrical main body 6a and a cylindrical protrusion 6b extending at right angles from the side surface thereof.

The cylindrical protrusion 6b passes through the side surface of the case body 5, and has a tip protruding outward.

The other end of the tube 3 is attached to its tip and fixed by a retaining ring 7.

A communication hole is provided at the center of the protrusion 6b.

The communication hole communicates with the central space C of the housing 6.

The central space C has a circular cross section and is open upward.

The above-mentioned intake hole a, these communication holes, and the central space C are connected via the tube 3, and the entire water channel B
is formed.

The base end of the nozzle C is inserted into the upper opening of the housing 6.

Since the O-ring 8 is compressed between the housing 6 and the nozzle C, sufficient waterproofness is ensured between the two.

In the central space C of the housing 6, there is also a cylindrical rotating body 9.
is stored.

The outer periphery of the cylindrical rotating body 9 is rubbed against the inner periphery of the central space C, so that tap water cannot pass between the two in close contact.

The cylindrical rotating body 9 has a through hole d opening in the upper surface and a part of the circumferential surface.

The waterway B is opened and closed depending on the rotational position, thereby forming a valve mechanism that cuts off and on the flow of tap water.

This cylindrical rotating body 9 is rotated by a motor E.

The motor E is housed in the second chamber 5b of the case body 5,
It is fixed by a screw 10, and its rotating shaft 11 is appropriately connected to the base of a cylindrical rotating body 90.

A battery 12 is connected to the motor E, and the motor E is turned on and off by a switch 13.

The battery 12 is housed in the third chamber 5c of the case body 5, and the switch 13 is attached to the side wall of the first chamber 5a of the case body 5.

The positive side of the battery 12 and the motor E are connected to the lead wire 1.
4, the motor E and the switch 13 are connected by a lead wire 15, and the switch 13 and the negative side of the battery 12 are connected by a lead wire 16, the case body 5, a cap 17, and a spring 18.

This is because the cap 11 compresses the spring 18 between it and the battery 12.

It is screwed onto the case body 5.

The oral hygiene device directly connected to the water supply is configured as shown in FIG. 1, for example.

However, in such an oral hygiene device, when adjusting the discharge pressure from the nozzle C, the opening degree of the water faucet is adjusted, so the operation is troublesome and the accuracy is low.

Furthermore, the hole diameter of nozzle C is about IIIφ, and 1 ol
Adjusting the pressure from a water faucet with an aperture larger than lφ using a small diameter nozzle C has the drawback of poor accuracy.

Furthermore, in the oral hygiene device described above, since the stop position of the rotating body 9 cannot be controlled, it may not be possible to stop the flow of tap water simply by turning off the switch 13 after use.

That is, when the switch 13 is turned off, the rotating body 9 may stop in communication with the central space C if the communicating hole is opened, and in such a case, tap water may still be continuously discharged from the nozzle C. I will continue.

At this time, the flow of tap water cannot be stopped unless the tap is closed.

However, when you close the tap and stop the flow of tap water,
Naturally, the tap water will be continuously discharged just by turning the faucet for the next use.

Therefore, with this type of oral hygiene device connected directly to the water supply, the tap water may or may not stop just by turning off the switch 13 after use, and the tap water may or may not stop just by turning off the water tap before use. There are times when water is discharged and times when it is not, and there is a drawback that the operation of the equipment is not the same depending on the handling before and after use. The disadvantage is that the operation is complicated.

Therefore, this idea was developed to allow the nozzle discharge pressure to be easily adjusted at hand without having to adjust the water faucet, and at the same time to control the motor operation, as well as to reliably stop the flow of tap water when the tap is stopped. The aim is to provide sanitary utensils.

Further explanation will be given below based on the embodiment of this invention shown in FIG.

The oral hygiene device shown in FIG. 2, like the oral hygiene device shown in FIG.
A nozzle C that is attached to the end of the water channel B and uses water pressure to discharge the tap water taken into the oral cavity, a valve mechanism that opens and closes the water channel B and regulates the flow of the tap water, and the valve mechanism. an operating rod r that constitutes a pressure regulating valve F in place of the switch 13 shown in FIG. 1, and a switch SW that is turned on and off by this operating rod
and.

In FIG. 2, a housing 6' is provided in place of the housing 6 in FIG.

The housing 6' is provided with a bent portion 6'c on the protrusion 6'b, and further provided with a protrusion 6'd extending perpendicularly from the intermediate portion of the bent portion 6'c.

The protrusion &'d passes through the case body 5' and has its tip protruding outward.

One end of the tube 3 is attached to this protrusion 6'd,
It is fixed by a retaining ring 7.

A communication hole f is provided at the center of the protrusion 6'd.

The communication hole f communicates with the central space g of the housing 6' and also with the second chamber 5'b of the case body 5'.

Insert the sliding rod r into the communication hole f from one end of the bent portion 6'c.

One end of the sliding rod r is a valve portion r1 having a conical shape, and this valve portion r1 and the communicating hole f of the protruding portion 6'd constitute a regulating valve F.

A gasket P is inserted into the middle part of the valve part r□ to prevent water leakage when the regulating valve F is closed.

The other side of the sliding rod r has a crank-shaped bent part r2, and a knob r3 is provided at the end thereof, protruding from a hole 5'd of the case body 5'.

The knob r3 has irregularities on its surface to prevent slippage for sliding the sliding rod r.

The contact portion between the knob r3 and the case body 5' is as shown in FIG.

That is, a plurality of recesses 5'e are provided on the outer surface of the case body 5', and the knob r3 is made to have spring properties so that the convex part r'3 provided on the lower surface of the knob r3 engages with the recess 5'e. When making adjustments, position knob r3.

The case main body 5', like the case main body 5 in FIG. 3rd room 5'
It has c.

The motor E is connected to 0N-O near the bent part r2 of the sliding rod r.
A switch SW for FF is arranged.

The switch SW is configured such that when the slider r is moved, the switch SW is turned on at the bent portion r2.

The switch SW is connected to the motor E by a lead wire 15', and is also connected to the negative side of the battery 12 by a lead wire 16', a case body 5', a cap 17', and a spring 18.

The motor E and the positive side of the battery 12 are connected by a lead wire 14'.

A rotating body 9 as shown in FIG. 4 is housed within the housing 6'.

This is similar to that used in the oral hygiene device shown in FIG.

This rotating body 9 has a through hole d opening in the upper surface and a part of the circumferential surface.

Therefore, this rotating body 9 opens or closes the water channel B depending on its rotational position.

Now, attach the faucet connector A to the water faucet and open the water faucet.

As shown in Fig. 2, when sliding rod r is slid downward from the position where waterway B is blocked and switch SW is turned OFF,
The switch sw is turned on and the motor E is driven.

At this time, since the valve part r1 is located at the inner end of the communicating hole f of the protruding part 6'd, the tap water flows to the nozzle C due to pressure.

However, since the cross-sectional area of the communication hole f changes due to the movement of the valve part r1, the pressure is adjusted.

The tap water whose pressure has been adjusted is discharged in an intermittent flow from the nozzle C by the operation of the rotating body 9.

After use, when the knob r3 is returned to its original position, the communication hole f is blocked by the sliding rod r, and the seal p prevents water from leaking into the waterway B.

The switch SW moves away from the bent portion r2 and turns OFF, and the operation of the motor E stops.

The oral hygiene device directly connected to water supply according to this invention was formed as described above, for example.

Of course, since the above-mentioned oral hygiene device is an embodiment of this invention, the faucet connector A used in the embodiment is merely a specific example thereof, and may be changed to other known faucet connectors. Similarly, the water channel and nozzle shape can also be changed.

The valve mechanism that periodically opens and closes the water channel can also be modified in the same way, and can be modified, for example, as shown in FIG. 5 by using a reciprocating body instead of the one-rotating body 9.

In FIG. 5, what is indicated by the reference numeral 20 is a housing.

The housing 20 consists of a cylindrical body 20a and a cylindrical protrusion 20b extending perpendicularly from the side surface of the cylindrical body 20a.

Similar to the embodiment shown in FIG. 2, the base end of the nozzle C is inserted into the upper opening of the cylindrical main body 20a, and the O-ring 21 ensures waterproofness therebetween.

On the other hand, similarly to the embodiment shown in FIG. 2, the cylindrical protrusion 20b is provided with a bent portion 20e into which a sliding rod (not shown) is inserted.

There is a communication hole b'/) in the protrusion 20b, and the main body 2
It communicates with the central space c' of 0a.

A piston 22 is slidably inserted into the central space C',
When the piston 22 is pulled down, the communication hole b' and the central space C' communicate with each other.

A crosshead 23 is fixed to the lower end of the piston 22,
The protrusion of the cross head 23 is the groove m of the crown gear 24.
I'm stuck in it.

The crown gear 24 has a six-shaped cross section, has crown teeth 24a carved on its outer peripheral surface, and has a central circular raised portion 2.
4b is bored with the aforementioned groove m.

As shown in FIG. 6, the groove m is formed, for example, along a fan shape centered at the center of the raised portion 24b.

Therefore, when the crown gear 24 rotates, the piston 2
2 will slide inside the cylindrical main body 20a.

The crown gear 24 meshes with a pinion 25 and rotates around a fixed shaft 26 formed in the case body.

The pinion 25 is fixed to the rotating shaft of the motor E.

FIG. 1 also shows a modification of the valve mechanism.

In the example shown in FIG. 7, the cylindrical body 2 of the valve mechanism shown in FIG.
A partition wall W is formed at 0a, a hole is provided in the partition wall, and the hole is opened and closed by the tip of the piston p'.

An elastic member n is fixed to the tip of the piston p/, 7), and when the elastic member n is pressed against the partition wall W, the hole is closed and communication between the communicating hole b'' and the central space C'' is interrupted.

When the piston p' force is pulled down and the elastic member n separates from the partition wall W, the communication hole b" and the central space C" are brought into communication.

Therefore, according to this invention, a pressure-regulated pulsating flow can be obtained, and by interlocking the water pressure regulating valve and the motor operation switch, a continuous flow can be generated suddenly even after the vehicle has been used. There is no risk of discharge, and it can be used with peace of mind.

Furthermore, according to this invention, a pump device is not required,
Therefore, since the motor can be made small, the overall structure is simple, and an oral hygiene device that is simple and easy to handle can be obtained.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an oral hygiene device directly connected to water supply. FIG. 2 is a sectional view of an improved oral hygiene device according to this invention. FIG. 3 is a sectional view of the sliding rod knob of the pressure regulating valve used in the oral hygiene device. FIG. 4 is a perspective view of the rotating body. FIG. 5 is a sectional view showing another example of the valve mechanism. FIG. 6 is a front view of a crown gear used in the valve mechanism. FIG. 7 is a sectional view showing still another example of the valve mechanism. A: Faucet connection, B: Water channel, C:
...Nozzle D...Mechanism, E...Motor, F...Adjustment valve, SW...Switch.

Claims (1)

[Scope of utility model registration request] A faucet connector attached to a water faucet, a water channel for conveying the tap water taken in from the faucet connector, and a nozzle attached to the end of the water channel for discharging the taken tap water into the oral cavity using water pressure. , in an oral hygiene device directly connected to the water supply, comprising a valve mechanism that opens and closes the waterway to regulate the flow of tap water, and a motor that operates the valve mechanism, a regulating valve that adjusts water pressure by changing the cross-sectional area of the waterway. and a switch that controls the motor by turning on and off according to the movement of the regulating valve.