JP2500466Y2 - Mouth wash nozzle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an oral cavity cleaning nozzle suitable for cleaning the inside of the mouth with hot water.

(Prior Art) Toothpaste and gargle after eating are generally made of a cup, but a tube and a tapered nozzle are prepared to enhance the cleaning property, and a device for gargle with a jet from this nozzle is becoming popular.

(Problems to be solved by the invention) Although the tapered nozzle has a simple structure, it does not have a preferable hand on / off valve. For example, the left hand holds the tapered nozzle and the right hand turns on the faucet at the hot water supply source.・ Since both hands need to be turned off, it will interfere with other manual work.

Therefore, it is an object of the present invention to provide one hand free for the convenience of the nozzle user.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention is a mouth-washing nozzle in which hot water is discharged through a nozzle attachment inserted in a grip, and the jet cleans the inside of the mouth. An on / off valve is provided in the hot and cold water passage in the grip, a switch means for opening and closing the on / off valve is provided through the grip, and the switch is pushed to lock the on state and further push. A lock mechanism that turns off at is attached.

The lock mechanism is equipped with a push button that can be retracted and retracted in the radial direction of the grip. The push button is turned on when the push button is retracted and turned off when the push button is retracted. It has a push mechanism.

Further, the switch means is composed of a stem provided in the on / off valve, a shaft having a hole into which the tip of the stem is loosely fitted, and a spring for urging the shaft.

(Operation) By operating the switch means, the on / off valve is opened and predetermined hot water is discharged from the nozzle attachment. At this time, since the switch means is held by the lock mechanism, the discharge is continued.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view of an oral cavity cleaning nozzle according to the present invention. In the oral cavity cleaning nozzle 1, a flexible tube 3 is connected to the base of a cylindrical grip 2 and a nozzle attachment 4 is inserted at the tip of the grip 2.

The nozzle attachment 4 has a discharge port 4a at its tip, and an impeller 4b is incorporated inside this, and this impeller 4b intermittently generates a jet. This intermittent jet irritates the gingiva and produces a so-called massage effect.

Inside the grip 2, there is a hot and cold water flow path 2a, and an on / off valve 5 is provided in the hot and cold water flow path 2a.

FIG. 2 (a) is an enlarged cross-sectional view showing the on / off valve and the switch means. The on / off valve 5 has a valve seat 5a fixed inside the grip, and a valve body 5b capable of contacting the valve seat 5a.
The stem 5c extending from the valve body 5b, a spring 5d for biasing the valve body 5b in the flow direction (arrow shown in the figure) and a spring retainer 5e, and the on / off valve 5 also has a function as a check valve. ing.

On the other hand, switch means 10 is provided penetrating the grip 2. That is, the switch means 10 comprises a shaft 11 having a hole 11a into which the tip of the stem 5c is loosely fitted, a spring 12 for pushing back the shaft 11, a shaft lock mechanism 20 described later, and a push button 21. Further, the lock mechanism 20 includes an inner lid 22 provided so as to be sandwiched between the shaft 11 and the push button 21, and a sleeve provided on the outer periphery of the inner lid 22.
It consists of 23 and. Step portions 23a and inner teeth 23b are formed on the inner surface of the sleeve 23, and step portions 22a and outer teeth 22b are formed on the outer peripheral portion of the inner lid 22.

2B is a sectional view taken along the line AA of FIG. 2A, in which case the outer teeth 22b of the inner lid 22 are the inner teeth 23b of the sleeve 23.
Therefore, the inner lid 22 can move back and forth in the front and back direction of FIG. 2 (b).

Further, as shown in FIG. 2 (a), inclined teeth 22c are provided on the upper surface of the inner lid 22, and teeth 21a on the lower surface of the push button 21 mesh with the inclined teeth 22c.

The operation of the oral cavity washing nozzle and the lock mechanism having the above-mentioned configuration will be described below.

The user of the mouth-washing nozzle 1 inserts a desired nozzle attachment 4 into the tip of the grip 2 shown in FIG. 1 and inserts the insertion port 3a of the flexible tube 3 into a water supply fitting (not shown).

Fig. 3 (a) is an action diagram, Fig. 3 (b) is Fig. 3 (a).
FIG. 6 is a sectional view taken along line BB of FIG.

When the push button 21 shown in FIG. 2 (a) is pressed, the inner lid 22 descends, and after the step portion 22a passes through the step portion 23a of the sleeve, the push-back spring 12 and the teeth 21a on the lower surface of the push button 21 are removed. The inclined teeth 22c on the upper surface of the inner lid 22 horizontally rotate and engage with the stepped portion 23a (FIG. 3 (b)).

Accordingly, the valve body 5b is opened and hot water is supplied to the nozzle attachment 4.

When push button 21 is pressed again, the teeth on the bottom of push button 21
21a pushes the inclined teeth 22c to rotate the inner lid 22 horizontally. As a result, the outer teeth 22b of the inner lid 22 move to the middle of the inner teeth 23b, 23b of the sleeve 23 and rise between the inner teeth 23b, 23b. That is, the shaft 11 rises, the valve body 5b comes into close contact with the valve seat 5a, the seal of the valve 5 is completed, and the hot water supply to the nozzle attachment 4 is interrupted. By repeating the pushing operation in this way, push what appears on and off alternately.
It is called the push method.

FIG. 4 shows another embodiment of the lock mechanism. The lock mechanism 30 moves the shaft 11 up and down by the eccentric action of the cam 32 fixed to the grip 2 by the pin 31.

Since the pushing-up direction of the shaft 11 matches the pin 31, the cam 32 does not run idly.

FIG. 5 is a view of another embodiment of the lock mechanism. In this lock mechanism 40, the lower surface of the slide button 41 that can be horizontally moved has a taper surface 41a, and the shaft 11 is driven by this taper action.
Is to push down.

(Effect of the Invention) As described above, the present invention discharges hot and cold water through the nozzle attachment inserted in the grip, and in this mouth washing nozzle that cleans the premises, the mouth washing nozzle has the hot and cold water flow inside the grip. An on / off valve is provided on the road, a switch means for opening and closing the on / off valve is provided through the grip, and an on state is locked by pushing the switch means, and a lock mechanism is turned off by further pushing. Since it is attached, it is possible to operate the oral cavity cleaning nozzle with only one hand, and the other hand is free, and the operator's hand is not burdened with continuously operating the switch means.

The lock mechanism is equipped with a push button that can be retracted and retracted in the radial direction of the grip. The push button is turned on when the push button is retracted and turned off when the push button is retracted. Since the push mechanism is used, the push button is depressed when it is used in the ON state, so that the possibility of accidentally pushing the push button is low, and there is little risk of erroneous operation.

Further, since the switch means is composed of a stem provided on the on / off valve, a shaft having a hole into which the tip of the stem is loosely fitted, and a spring for urging the shaft, the movement of the on / off valve is prevented. Good and operability is good.

Further, since the push button is a retractable type, the on / off state of the push button can be easily visually recognized, and as a result, it is easy to inconvenience that the nozzle attachment is inserted into the water supply port while it is in the on state and hot water is suddenly ejected. Can be prevented.

[Brief description of drawings]

1 is a sectional view of an oral cavity cleaning nozzle according to the present invention, FIG. 2 (a) is an enlarged sectional view showing an on / off valve and a switch means, and FIG. 2 (b) is AA of FIG. 2 (a). 3A is a sectional view, FIG. 3B is a sectional view taken along the line BB in FIG. 3A, and FIG. 4 is another embodiment of the locking mechanism, FIG. FIG. 7 is a diagram showing another embodiment of the locking mechanism. 1 ... Oral cleaning nozzle 2 ... Grip, 2a ... Hot and cold water flow path 5 ... On / off valve, 10 ... Switch means 20 ... Lock mechanism, 21 ... Push button

Claims (3)

(57) [Scope of utility model registration request] 1. An oral cavity cleaning nozzle in which hot water is discharged through a nozzle attachment inserted in a grip, and the mouth is cleaned by this jet flow, wherein the oral cavity cleaning nozzle has an on / off valve in a hot and cold water flow passage in the grip. A switch means for opening and closing the on / off valve is provided penetrating the grip, and a lock mechanism is provided to lock the on state by pushing the switch means and turn off by further pushing. Oral cleaning nozzle. 2. The lock mechanism includes a push button that can be retracted and retracted in the radial direction of the grip. The push button is turned on when the push button is retracted, and is turned off when the push button is retracted. An oral cleaning nozzle characterized by a push-push mechanism. 3. The switch means comprises a stem provided in the on / off valve, a shaft having a hole into which a tip end of the stem is loosely fitted, and a spring for urging the shaft. The oral cleaning nozzle according to claim 1 or 2.