JP2531136Y2 - Switching valve - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a switching valve, and in particular, to a switching valve having a modular valve structure capable of supporting multifunctional applications by selectively combining a coil assembly and an attachment. Regarding effective technology to apply.

[Conventional technology]

As a switching valve of this type, for example, FIG.
(B) and (c).

That is, for example, the switching valve has
There are an air-operated valve (Fig. 2 (c)) and a solenoid valve, and the solenoid valve has a direct piping type (Fig. 2 (a)) and an indirect piping type (Fig. 2 (b)). ).

Valve body 13 and coil assembly in these switching valves
Parts such as 14 and pilot adapter 15 were manufactured and assembled according to their respective functional applications.

[Problems to be solved by the invention]

By the way, in the structure of the switching valve described above, if the specification is fixed, there is no problem. However, in many cases, it is desired to change the specification according to the needs of the user. In such a case, a new switching valve is purchased. Therefore, there is a problem that the cost is high, and there is a problem that the machine cannot be operated until it is purchased rather than arranged.

Also, when switching valves or parts are stocked, many parts corresponding to the specifications are indispensable, so that there is a problem that the number of man-hours for stock management increases.

Therefore, the present invention has been made in view of the above-mentioned problems, and its purpose is to eliminate the need to purchase a new switching valve even when the specification is changed, to reduce the cost, and to reduce inventory control. It is another object of the present invention to provide a switching valve capable of reducing the number of steps.

[Means for solving the problem]

The outline of a typical invention disclosed in the present application is briefly described as follows.

The switching valve of the present invention is provided with a block-shaped valve body in which a valve hole is formed in the longitudinal direction, and a communication hole that is orthogonal to the valve hole is opened on an opening surface, and is fastened to one end surface of the valve body. A side cover, a pilot adapter fastened to the other end surface of the valve body, a coil assembly fastened to the other end surface of the valve body via the pilot adapter, and an output port communicating with the communication hole. A cover with a port fastened to an opening surface of the valve body, and a portless cover fastened to the opening surface to close the communication hole, wherein the valve body, the side cover, the pilot adapter, and the coil A solenoid valve of a direct piping type formed by the assembly and the cover with the port, the valve body, the side cover, the pilot adapter, the coil assembly, And indirect piping type solenoid valve that is formed by the over Torres adapter, characterized by being adapted to be assembled any of said valve fluid actuated valve that is formed by the main body and said side cover and said pilot adapter.

[Action]

According to the switching valve of the present invention, a pilot adapter and a side cover are fastened to both end surfaces of a block-shaped valve body having a communication hole opened perpendicularly to the valve hole, and the valve body is further connected via the pilot adapter. By directly fastening the coil assembly and the cover with the port to the opening surface of the valve body, a direct piping type solenoid valve can be obtained. By fastening a portless cover to the opening surface in place of the ported cover in the direct piping type solenoid valve, an indirect piping type solenoid valve can be obtained. In this way, the solenoid valve can be changed and used as a direct piping type or an indirect piping type by replacing the cover.

Further, by fastening the side cover and the pilot adapter to both end surfaces of the valve body, the switching valve can be used as a fluid-operated valve.

As described above, by selectively combining the valve body, the pilot adapter, the coil assembly, and the various covers, the switching valve can be easily used in response to a specification change on the user side.

Therefore, even if the specification is changed, it is not necessary to purchase a new switching valve, and it is possible not only to reduce the cost, but also to reduce man-hours in terms of inventory management and maintenance.

The above and other objects and novel features of the present invention are as follows.
It will be apparent from the description of this specification and the accompanying drawings.

〔Example〕

FIG. 1 is an exploded perspective view showing a switching valve according to an embodiment of the present invention.

The switching valve according to the present embodiment has a modular valve structure and has a valve body 1. The valve body 1 is of a block shape having a rectangular cross-section, and has a shaft hole 2 for sliding a main shaft at the center along the axial direction.

A communication hole 3 that communicates orthogonally with the shaft hole 2 is opened on the upper surface of the valve body 1. In the center of the upper surface of the valve body 1, there is formed a mounting hole 7 for screwing the cover with port 4 or the portless cover 5 through the mounting bolt 6a, and the surface on which the mounting hole 7 is formed. Is an opening surface.

Further, a mounting hole 8 is formed in a shoulder portion of the upper surface of the valve main body 1 for mounting the switching valve in the manifold by screwing a mounting bolt through the mounting bolt.

The ported cover 4 is for using the switching valve as a direct piping type solenoid valve, and has an output port 3a for connecting an output piping which communicates with the communication hole 3 of the valve body 1.

The portless cover 5 is for using the switching valve as an indirect piping type solenoid valve, has a portless structure for closing the communication hole 3 of the valve body 1, and uses a manifold with an output port. An output pipe can be connected to the output port of the manifold.

The ported cover 4 and the portless cover 5 are
In both cases, the mounting holes 7a, 7a,
8a is formed.

A pilot adapter 9 and a coil assembly 11 are coaxially mounted on the left side of the valve body 1 via mounting bolts, and a side cover 10 is mounted on the right side via mounting bolts 6b.

The pilot adapter 9 includes a piston for moving a main shaft by a pilot pressure from a non-control valve such as a coil assembly 11 or a manual valve, and the piston can slide in a sliding hole 12 formed along an axial direction. It has become.

The coil assembly 11 has a coil, and a plunger that moves in a direction perpendicular to the axial direction of the valve body 1 by the magnetic force of the coil. It can be supplied to the sliding hole 12.

 Next, the operation of the embodiment will be described.

When the switching valve is used as a direct piping type solenoid valve, the valve body 1, the pilot adapter 9, the coil assembly 11, the cover with port 4, and the side cover 10 are used as components.

When assembling, first, the pilot adapter 9 and the coil assembly 11 are mounted on the left side of the valve body 1 via mounting bolts.

Next, the cover with port 4 and the side cover 10 are mounted on the upper side and the right side of the valve body 1 via the mounting bolts 6a and 6b, respectively.

Thus, the output pipe can be connected to the output port of the cover with port 4 and the switching valve can be used as a direct piping type solenoid valve.

When the switching valve is used as an indirectly-pipe type solenoid valve, it is almost the same as the case of the above-mentioned direct-pipe type solenoid valve. The difference is that a portless cover 5 is used instead of the ported cover 4. The portless cover 5 is mounted on the upper side of the valve body 1 via mounting bolts 6a.

This allows the use of a manifold with an output port,
By connecting an output pipe to the output port of the manifold, the switching valve can be used as an indirect pipe type solenoid valve.

When the switching valve is used as an air-operated valve, it is almost the same as the case of the direct piping type solenoid valve, except that a pilot pipe is used in place of the coil assembly 11, and one end of the pilot pipe is connected to a pilot adapter. 9 and the other end to a non-control valve such as a manual valve. Thus, the switching valve can be used as an air-operated valve.

As described above, by selectively combining the valve body 1, the pilot adapter 9, the coil assembly 11, and the covers 4, 5, the switching valve can be easily used in response to a specification change on the user side.

Therefore, even if the specification is changed, it is not necessary to purchase a new switching valve, and it is possible to not only reduce the cost but also reduce the man-hour in terms of inventory management and maintenance.

As described above, the invention made by the present inventors has been specifically described based on the embodiments. However, the present invention is not limited to the above embodiments, and it can be said that various modifications can be made without departing from the gist of the invention. Not even.

For example, in the above-described embodiment, a switching valve having a function as a single-coil solenoid valve by attaching a coil assembly via a pilot adapter to only one side of the valve body has been described. A coil assembly can be mounted on both sides of the coil via a pilot adapter, and used as a double coil type solenoid valve.

For joining, any means such as screwing, press fitting, insertion, etc. may be used instead of the mounting bolt.

In the above description, the invention made mainly by the present inventor has been described using the switching valve operated by air pressure, which is the field of application, but the invention can also be applied to a switching valve operated by hydraulic pressure.

[Effect of the invention]

The effects obtained by typical ones of the inventions disclosed in the present application will be briefly described as follows.

(1). A pilot adapter is mounted on at least one side of the valve body, and in a switching valve that opens and closes with pilot pressure, the valve body, pilot adapter, coil assembly, ported cover, and portless cover can be selected for multiple functions. The modular valve structure has been made possible. For example, by installing a coil assembly on the pilot adapter and attaching a cover with port or a portless cover on the side of the communication hole of the valve body, the switching valve can be either a direct piping type or an indirect piping type. Can be used as a solenoid valve.

(2). Further, by connecting a pilot pipe to the pilot adapter, the switching valve can be used as a fluid-operated valve.

(3). As described above, by selectively combining the valve body, the pilot adapter, the coil assembly, and the various covers, the switching valve can be easily used in response to a specification change on the user side.

(4). Therefore, even if the specification is changed, it is not necessary to purchase a new switching valve, and it is possible to not only reduce the cost but also reduce the man-hour in terms of inventory management and maintenance.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a switching valve according to an embodiment of the present invention, and FIGS. 2 (a), 2 (b) and 2 (c) are perspective views showing various switching valves according to a conventional example. 1 ... valve body, 2 ... shaft hole, 3 ... communication hole, 3a ... output port, 4 ... cover with port, 5 ... portless cover, 6a ... mounting bolt, 6b ... mounting bolt, 7 mounting holes, 7a mounting holes, 8 mounting holes, 8a mounting holes, 9 mounting holes
... Pilot adapter, 10 ... Side cover, 11 ... Coil assembly, 12 ... Sliding hole, 13 ... Valve body, 14 ...
Coil assembly, 15 ... Pilot adapter.

Claims (1)

(57) [Scope of request for utility model registration] 1. A block-shaped valve body having a valve hole formed in a longitudinal direction and having a communication hole orthogonal to the valve hole, the communication hole being opened on an opening surface, and a side fastened to one end surface of the valve body. A cover, a pilot adapter fastened to the other end surface of the valve body, a coil assembly fastened to the other end surface of the valve body via the pilot adapter, and an output port communicating with the communication hole; A port-less cover fastened to the opening surface of the valve body, and a portless cover fastened to the opening surface to close the communication hole; the valve body, the side cover, the pilot adapter, the coil assembly, A direct piping type solenoid valve formed by the cover with a port, the valve body, the side cover, the pilot adapter, the coil assembly, and the port. A switching valve, wherein an indirect piping type solenoid valve formed by a headless adapter and a fluid operated valve formed by the valve body, the side cover and the pilot adapter can be assembled. valve.