JPH0743241Y2 - Toilet bowl cleaning device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet bowl cleaning device for detecting a user of a toilet bowl and automatically supplying flush water to the toilet bowl, and more specifically, a sensing unit for sensing a user of the toilet bowl and outputting a sensing signal. And an electric control unit that outputs an opening / closing signal to the water supply unit based on a detection signal input from the sensing unit, and a flash valve that is installed in a recess provided on a wall surface or the like based on the opening / closing signal input from the electric control unit. And a water supply unit that opens and closes to supply the flush water to the toilet bowl.

[0002]

2. Description of the Related Art Conventionally, as a toilet bowl cleaning device of this kind, as disclosed in, for example, Japanese Utility Model Publication No. 57-46472, an outer surface of a lid 4 of a flash valve A, that is, a pressure chamber 5 is provided. A tubular portion 4c protruding in the direction of leaving is provided, and an adjusting screw 6 is screwed onto the inner peripheral surface of the tubular portion 4c so as to be able to advance and retract, and the inner end of the adjusting screw 6 and the central portion of the main valve body 1 on the pressure chamber side. 1 "is provided with a gap 11, and the gap 11 is changed by screwing the adjusting screw 6 to adjust the valve opening time of the main valve 3 to adjust the water supply amount and the outer circumference of the cylindrical portion 4c. There is one in which a tool engaging portion 4a for engaging a tool such as a spanner is formed in a nut shape on the surface and the lid 4 is fastened and fixed to the main body A1 of the flash valve A.

[0003]

However, in such a conventional toilet bowl cleaning device, since the adjusting screw, the tubular portion and the tool engaging portion are projected to the outside of the lid by the amount of the operation of the main valve body, The entire flash valve becomes longer in the operating direction of the main valve body, the water supply part becomes larger, and as a result, the recess provided on the wall surface and the like becomes larger, and the cover covering the front surface of the recess becomes larger, which impairs aesthetics. There is. In addition, there are cases where the toilet bowl cleaning device cannot be attached due to the wall thickness.

Therefore, for example, as disclosed in Japanese Utility Model Publication No. 39-23472, a cylindrical portion is provided on the inner surface of the lid so as to project into the pressure chamber, and the cylindrical portion is recessed in the pressure chamber side of the main valve body. It is conceivable that the adjustment screw and the tubular portion do not project to the outside of the lid by being loosely fitted in and fitted on the inner peripheral surface of the tubular portion so as to be able to advance and retreat.

However, even in this case, since the nut-like tool engaging portion is provided on the outer surface of the lid so as to project outward,
There is a problem that the entire flash valve cannot be extremely shortened in the operating direction of the main valve body.

In view of such conventional circumstances, the present invention aims to shorten the entire flash valve in the operating direction of the main valve body by arranging the adjusting screw and the tool engaging portion without projecting outward from the lid. And

[0007]

The technical means taken by the present invention to solve the above-mentioned problems is to provide a lid, which is screwed to the main body of the flash valve to form a pressure chamber, with a cylindrical portion protruding into the pressure chamber. Provided, the tubular portion is loosely fitted into a concave portion provided on the pressure chamber side of the main valve body, and the inner peripheral surface of the tubular portion is
An adjusting screw for adjusting the valve opening time of the main valve that comes into contact when the main valve body is operated is screwed so as to be able to move forward and backward, and a tool engaging portion is provided in a groove shape on the outer surface of the lid. It is a thing.

[0008]

According to the above technical means, the working distance of the main valve body is adjusted by bringing the inner end of the adjusting screw located in the pressure chamber into contact with the inner bottom surface of the concave portion of the main valve body. The lid is fastened and fixed to the main body by engaging and screwing a tool such as a screwdriver into a groove-shaped tool engaging portion provided on the outer surface of the lid.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In this embodiment, as shown in FIG. 1, the water supply section is composed of a solenoid valve B and a flush valve A that opens and closes by the operation of the solenoid valve B.

The main body A1 of the flash valve A is a metal tube bent in a substantially inverted V shape on the front side to form a flow path A2 therein, and an inflow port A3 and an outflow port A4 are opened at both lower ends of the flow path A2. A water supply pipe D that connects to the water supply source is connected to the inlet A3, and a discharge pipe E that connects to the toilet K is connected to the outlet A4, respectively, and a small-diameter opening A5 to which a water stop cock C is attached on the front side of the middle part. Then, a large-diameter opening A6 for mounting the main valve body 1 is opened so as to communicate with the flow path A2.

The main valve body 1 is composed of a piston that slides in the large-diameter opening A6, and constitutes a main valve 3 corresponding to the main valve seat 2 formed in the middle of the flow path A2 from the primary side. Behind it, a pressure chamber 5 is defined between the main valve body 1 and a lid 4 which is screwed onto the opening edge of the large-diameter opening A6 so as to be movable back and forth.

Further, the main valve body 1 is provided with a concave portion 1a on the end surface on the pressure chamber 5 side, and the pressure chamber 5 and the primary side are communicated with each other through a small hole 1b opened in the peripheral wall of the concave portion 1a. When the valve is closed, the rear peripheral edge 1c is in close contact with the main valve seat 2, and the guide vane 1d protruding in the center thereof extends through the main valve seat 2 to the secondary side.

The lid 4 is provided with a grooved tool engaging portion 4a for engaging a tool such as a screwdriver on the outer surface, a through hole 4b extending inward and outward is formed at the center of the lid, and a pressure chamber is formed at the center of the inner surface. 5 is integrally formed with a cylindrical portion 4c, and the inner half portion of the cylindrical portion 4c is located inside the concave portion 1a formed on the side surface of the pressure chamber 5 of the main valve body 1, and the through hole is formed on the inner peripheral surface. Screw the adjusting screw 6 from 4b so that it can move in and out.

Further, a spring 5a is mounted in the pressure chamber 5 between the lid 4 and the concave portion 1a, and a solenoid valve B is connected through a connecting pipe 7 formed in a front inverted U shape. Solenoid valve B
The pressure chamber 5 and the outlet A4 can be connected to each other by connecting the secondary side of the above to the secondary side of the flash valve body A1.

The connecting pipe 7 is detachably attached to the flush valve body A1 and the solenoid valve B forming the pressure chamber 5 by two nuts 7a and 7b.

The solenoid valve 3 includes a valve seat B2 formed in the middle of a passage in the solenoid valve body B1, a valve body B3 disposed so as to be able to come into contact with and separate from the valve seat B2, and the valve body B3 in the closing direction. A biasing spring B4 and a solenoid B5 arranged around the valve body B3.
When the solenoid B5 is not energized, the spring B4 closes the valve element B3 to the valve seat B2 to close the valve.

Further, the secondary side end of the solenoid valve body B1 is formed in a cylindrical shape, and two annular flanges B7, B are formed on the outer peripheral surface thereof.
8 are projected at appropriate intervals, and these two ribs B7,
With the O-ring B10 fitted in the recess B9 formed between B8, it is inserted into the mounting port A7 which is vertically formed on the secondary side of the flash valve body A1.

A set screw B11 is screwed on the peripheral wall of the mounting port A7 in a direction orthogonal to the axis of the port A7 so as to be able to move back and forth. The solenoid valve main body B1 and the flash valve main body A1 are connected by being locked to the upper flange portion B7.

In this flash valve A, when the solenoid B5 of the solenoid valve B is energized, the electromagnetic force moves the valve body B3 in the valve opening direction to open the valve, and the water in the pressure chamber 5 is closed. To the outlet A4, the main valve body 1 gradually moves to the lid 4 side as the water in the pressure chamber 2d decreases, and the main valve 3 opens to supply water to the toilet K.

When the energization of the solenoid B5 is cut off and the outflow of water from the pressure chamber 5 is stopped, the water on the primary side becomes a small hole.
From 1b, it gradually begins to flow into the pressure chamber 5, and accordingly, the main valve body 1 gradually moves to the main valve seat 2 side, and finally the main valve body 1 closes.

At this time, the adjusting screw 6 is screwed into the main valve body 1 so that the rear end of the screw 6 comes into contact with the inner bottom surface of the concave portion 1a when the main valve body 1 operates.
Is adjusted to adjust the opening degree of the main valve 3, that is, the water supply amount.

On the other hand, the energization of the solenoid B5 of the solenoid valve B is controlled by the electric controller F.

The electric control unit F is arranged and fixed in a box G in which the flash valve A is provided, and is electrically connected to the solenoid B5 and a sensing unit H which will be described later.
The solenoid B5 is energized for a predetermined time based on the sensing signal from the.

The sensing unit H is a photoelectric sensor of the diffuse reflection type in which, for example, the infrared light projected from the light projecting element hits the user of the toilet bowl and is reflected, and the reflected light is received by the light receiving element to generate a sensing signal. Yes, it is attached to the cover J that covers the front surface of the recess I1 provided on the wall surface I.

The illustrated example shows a case where the sensing portion H is embedded in the wall surface I, and the mounting plate G3 is fixed to the cover plate G1 fixed so as to cover the front surface of the box G through the mounting bolts G2. And the mounting plate G3
A cover J is attached to the front of the unit with a permanent magnet G4.

[0026]

Since the present invention has the above-mentioned structure, it has the following advantages. 1 The working distance of the main valve body is adjusted by bringing the inner end of the adjusting screw located in the pressure chamber into contact with the inner bottom surface of the concave portion of the main valve body, and at the same time, the groove-shaped tool holder is provided on the outer surface of the lid. By engaging and screwing a tool such as a screwdriver into the joint, the lid is fastened and fixed to the main body,
By disposing the adjusting screw and the tool engaging portion without protruding outward from the lid, the entire flush valve can be shortened in the operating direction of the main valve body.

Therefore, as compared with the conventional one in which the adjusting screw and the tool engaging portion project to the outside of the lid, the water supply portion can be made compact and the recess provided in the wall surface or the like can be made small, and the front surface of the recess The cover that covers can be made small so that it does not spoil the beauty. 2 Less affected by wall thickness,
It can be installed in many places.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a flash valve according to an embodiment of the present invention.

FIG. 2 is a transverse front view of the same.

3 is a cross-sectional view taken along line (III)-(III) of FIG.

FIG. 4 is a perspective view.

FIG. 5 is a vertical sectional side view of a flash valve according to another embodiment of the present invention.

FIG. 6 is a partially cutaway cross-sectional front view showing an example of a conventional flash valve.

[Explanation of symbols]

A1 Main body 1 Main valve body 1a Recessed part 3 Main valve 4 Lid 4a Tool engagement part 4c Cylindrical part 5 Pressure chamber 6 Adjustment screw

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Patent Publication No. 48-40486 (JP, B1) Actual Publication No. 39-23472 (JP, Y1)

Claims (1)

[Scope of utility model registration request] 1. A sensing unit that senses a user of a toilet bowl and outputs a sensing signal, an electric control unit that outputs an opening / closing signal to a water supply unit based on a sensing signal input from the sensing unit, and the electric control unit. In the toilet flushing device equipped with a water supply unit that opens and closes a flush valve provided in a recess provided in a wall surface or the like based on an opening / closing signal input from the The lid that is attached to form the pressure chamber is provided with a tubular portion protruding into the pressure chamber, and the tubular portion is loosely fitted into a concave portion provided on the pressure chamber side of the main valve body. An adjusting screw for adjusting the valve opening time of the main valve, which comes into contact with the main valve body when the main valve operates, is screwed so as to move forward and backward, and a tool engaging portion is formed in a groove shape on the outer surface of the lid. A toilet bowl cleaning device characterized in that