JPS60241589A - Switch valve device - Google Patents

Abstract

PURPOSE:To facilitate switch operation by providing a projection and slide guide groove which are fitted to each other to slide and guide each other on the outer periphery of a cap and the inner wall of a hole bored through an outer shell body of a switch valve, respectively. CONSTITUTION:A projection 7a is disposed on the outer periphery of a cap 7', and a hole 3b where the cap 7' freely moves and a slide guide groove 3c axially disposed on the inside of the hole, where the projection 7a of the cap 7' fits each other are formed on an outer shell body 3a of a switch valve 3. Even if the number of times of operating an operation knob 11 increases, the cap 7' does not turn because the projection 7a fits in the slide guide groove 3c. Accordingly, the connection of the cap 7' to a valve body 6 will not be loosened.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a switching valve device having a configuration in which a valve body that slides in the axial direction is operated by a rotary operating body. A switching valve device is used, for example, in a sanitary washer having two discharge ports for purified water, as shown in FIGS. 3 to 6.

As shown in the figure, the sanitary washer includes a main body 1, a tank 2 and a pump (not shown), and a switching valve 3 is provided in the outlet path of the tank 2, and a first outlet 4 and a second outlet are provided. Outlet 6
The water supply is controlled by a valve body 6.

The valve body 6 has a cylindrical shape and is provided to be slidable in the axial direction, and a cap 7 is provided on the top thereof by screw connection, and a cam 8 is disposed that pushes the cap 7 by constant rotation and moves the valve body 6 downward. ing. A rotating member of a power switch 10 is coupled to the rotating shaft 9 of the cam 8, and an operating knob 11 is attached to the end of the rotating shaft 9, which is about 1 inch wide. The valve body 6 and the power switch 1o are turned off (power off) when the operating knob 11 is in the four rotational positions shown in FIG.
They are linked to perform three operations: power off (power off) and cleaning.

Note that the first outlet 4 of the switching valve 3 is connected to a fixed nozzle (not shown), and the second outlet 6 is connected to a hand-held nozzle (not shown). and.

When the valve body 6 is moving upward as shown in the figure, it closes the passage to the first outlet 4 on the upper side and opens the passageway to the second outlet 5 on the lower side. 1. Both the second outflow ports 4 and 6 are brought into a water-flowing state. That is, although the second outlet 6 is always in a water flow state regardless of the operation of the valve body 6, there is no problem because the hand-held nozzle connected thereto is also equipped with an on/off switch.

However, in the above configuration, the operation knob 11 is the fourth
As shown in the figure, there are four rotational positions in any rotation direction (right,
(Left) can be selected, and since the cap and valve body 6 are connected by screws, as the number of operations increases, the screws loosen and the cap 7 rises.

There is a problem in that the operating knob 11 cannot be rotated. In addition, in order to prevent this, it is necessary to apply a screw lock to the threaded joint part K between the cap 7 and the valve body 6, resulting in an increase in the number of assembly steps.

OBJECTS OF THE INVENTION The present invention has been made in consideration of the above-mentioned conventional problems, and an object of the present invention is to provide a switching valve device that facilitates switching operations and reduces costs.

Structure of the Invention In order to achieve the above object, the present invention provides a switching valve device that rotates an operating knob and slides a valve body in the axial direction via a cam, which includes a cam screwed to an end of the valve body. A receiving cap is provided, and the switching valve is provided with a hole through which the cap can slide, and a protrusion and groove are provided on the outer periphery of the cap and the inside of the hole to fit into each other and guide the slide, The slide guide mechanism functions to prevent the cap from turning, so that the cap will not loosen or fall off, allowing safe use.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 and 2. Components that are the same as those in FIGS. 3 and 4 described above are designated by the same reference numerals, and their explanations will be omitted.

The features of this embodiment include a cap 7' screwed onto the upper part of the valve body 6 of the switching valve 3, and a locking structure 6D, that is, a protrusion 7 is protruded on the outer periphery of the cap 7'. On the other hand, the outer shell 3a of the switching valve 3 is provided with a hole 3b in which the cap is movable and axially inside this hole 7a, into which the protrusion 7a of the camp 7' is fitted. A mating slide guide #13C is formed.

According to the above configuration, even if the number of operations of the operation knob 11 increases, the protrusion 7a of the cap 7' remains in the slide guide groove.
It does not rotate due to the relationship of fitting into c, that is,
The threaded connection between the cap and the valve body 6 does not loosen, and the operating knob 11 does not become unrotatable when the cap is raised. Furthermore, there is no need to apply a screw locking paint to ensure screw connection, and assembly is easy.

In addition to the embodiment shown in FIG. 1, the protrusion 7a of the cap 7 may be provided on the outer shell 3a of the switching valve, and the slide guide 11130 may be provided on the outer periphery of the cap 7.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention, the cap screwed to the valve body loosens.

It does not fall off and is easy to assemble.

This type of switching valve device that slides the valve body in the axial direction through rotational operation has a great practical effect.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a switching valve device according to an embodiment of the present invention, and FIG.
The figure is a top view of the same main part, Figure 3 is a sectional view of a sanitary washer equipped with a conventional switching valve device, Figure 4 is a top view of the same part, and Figure 6 is a top view of the same part.
The figure is a top view of the same essential parts. 3...Switching valve, 3&...Outer shell, 3b...
...hole. 3C...Slide guide groove, 6...Valve body,
7'... Cap, a... Protrusion, 8...
...Cam, 9...Rotary axis, 11...Operation knob. Name of agent: Patent attorney Toshio Nakao and 1 other person
2 Figure 4

Claims (1)

[Claims] A switching valve comprising a cam rotated by an operating knob, a cap pressed by the cam, a valve body with the cap screwed to an end and slidable in the axial direction, and the valve body. A switching valve device comprising a hole in the outer shell of the switching valve in which the cap can freely slide, and a protrusion and a slide guide groove that fit into the outer periphery of the cap and the inner wall of the hole to guide the slide.