JP2567072Y2 - Manifold - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manifold, and more particularly to a technique which is effective when applied to a fluid pressure manifold constructed by connecting manifold bases on which valves are mounted.

[0002]

2. Description of the Related Art For example, as this kind of manifold, a required number of bases such as a manifold base, a piping base and a wiring base are connected to each other, and a seal member is interposed between connecting surfaces of adjacent bases. There is known a structure in which the connecting portions are extended along a sealing portion such as an open end of the connecting port of the base to be connected to each other to seal a connecting portion between the ports.

[0003]

Incidentally, in the above-described manifold, it is necessary to easily and reliably position the seal member at the time of assembly.

In addition, for example, even when a fluid of either positive pressure or negative pressure flows into a connection port or the like which is sealed by a seal member, it is desired to have a structure for surely preventing displacement of the seal member. .

An object of the present invention is to make it easier and more reliable to position the seal member at the time of assembling, and to supply either positive pressure or negative pressure fluid to a connection port sealed by the seal member. It is an object of the present invention to provide a manifold capable of reliably preventing the displacement of the seal member even when the seal member flows.

The above and other objects and novel features of the present invention will become apparent from the description of the present specification and the accompanying drawings.

[0007]

Means for Solving the Problems Of the inventions disclosed in the present application, the outline of a representative one will be briefly described.
It is as follows.

That is, the structure of the manifold of the present invention is such that a seal member is interposed between connecting surfaces of adjacent manifold bases which are connected to each other, and this seal member is provided between an input port and a discharge port of the adjacent manifold bases. A manifold extending along an open end to seal a connection portion between the input port and the discharge port, wherein opposing protrusions located at both ends in a width direction of the seal member are formed by the manifold; The seal member is formed along the input port and the discharge port of the base, and the seal member is sandwiched between the opposed protrusions to fix the seal member.

In the present invention, when the mutually adjacent manifold bases are assembled at the time of connection, the projections of the mutually adjacent manifold bases are opposed to each other and combined to form a cavity between the projections. Is formed, and a portion of the seal member is sandwiched in the hollow portion substantially all around in the cross section direction of the portion, so that the seal member is fixed in the hollow portion.

[0010]

According to the above-mentioned manifold of the present invention, by positioning the seal member between the opposing projections formed at the seal portion, the positioning of the seal member at the time of assembling can be performed easily and reliably. So you can
This makes it easier and more reliable to assemble the seal member into the seal portion.

Further, since the seal member is sandwiched between the opposed protrusions formed at the seal portion and the seal member is fixed, for example, a positive pressure and a negative pressure are applied to a connection port sealed by the seal member. Even when any one of the fluids flows, the displacement of the seal member can be reliably prevented.

In this case, the projections of the manifold bases adjacent to each other are opposed to each other and combined with each other to form a cavity between the projections, and a part of the sealing member is formed in a sectional direction of the part. When the seal member is fixed in the hollow portion by being sandwiched in the hollow portion substantially all around, the positional displacement of the seal member can be more reliably prevented.

[0013]

1 is a cross-sectional view of a manifold according to an embodiment of the present invention taken along line II of FIG. 2, FIG. 2 is a front view showing a manifold base of the manifold, and FIG. 3 is a manifold base thereof. FIG. 4 is a partial rear view, FIG. 4 is a plan view showing the manifold, and FIG. 5 is a plan view showing the manifold base.

As shown in FIG. 2 and the like, in the manifold 1 of this embodiment, a screw 3 protruding from a solenoid valve 2 is fastened to a female screw portion 5 of a manifold base 4 so that the solenoid valve 2 is connected to the manifold base 4. The plurality of manifold bases 4, a piping base (not shown), and a wiring base (not shown) are mounted on each other.

The solenoid valve 2 is a 5-port directional control valve, and has an input port, a pair of discharge ports, and a pair of output ports (not shown) on the back side thereof.

As shown in FIG. 2, the screw 3 on the solenoid valve 2 side
Are projected from the back surface side through the screw through holes 6.

An input port, a pair of discharge ports, and a pair of output ports (not shown) are opened on the solenoid valve mounting surface of the manifold base 4, and these ports are provided on the back of the solenoid valve 2. Side, an input port, a pair of discharge ports, and a pair of output ports (not shown).

An input port, a pair of discharge ports, and a pair of output ports (not shown) on the solenoid valve mounting surface of the manifold base 4 are provided with an input port 7 and a discharge port formed through the connecting surfaces of the manifold bases 4 respectively. Port 8, an output port 9 on the outer side of the manifold base 4,
The input port 7 and the discharge port 8 of the manifold base 4 are connected to each other by connecting the input port 7 and the discharge port 8 of each manifold base 4 to each other when the manifold bases 4 are connected to each other. A common input flow path and a common discharge flow path are formed.

The discharge port 8 is provided with a filter 10 and the connecting surface 13 of the manifold base 4 is formed with a pair of through holes 12 for connecting rods connecting the manifold bases 4 to each other.

Next, in the manifold 1 of the present embodiment, a hexagon nut 14 embedded in the connecting surface 13 of the manifold base 4 and partially projecting from the connecting surface 13 to form the female screw portion 5 is formed. And a female fitting portion 15 formed on the connecting surface 13 at a predetermined interval from the nut 14.

On the connecting surface 13 of the manifold base 4,
As shown in FIG. 1, a recessed nut burying portion 16 and a female fitting portion 15 are formed at predetermined intervals, each of which is substantially in conformity with a hexagon of the hexagon nut 14.

The nut 14 is buried in the buried portion 16 for a nut, a part of its outer periphery is projected from the connecting surface 13, and its rotation is prevented by matching the shape of the buried portion 16 for the nut. .

On the other hand, the solenoid valve mounting surface of the manifold base 4 has a screw through hole 16A communicating with the nut embedded portion 16.
Has been established. The screw 3 that penetrates the screw through hole 6 on the solenoid valve 2 side and protrudes from the back side thereof is fastened to the nut 14 through the screw through hole 16A.

As shown in FIG. 1, the manifold bases 4 having such a structure are connected to each other by the nuts 14 in the manifold bases 4 connected adjacent to each other.
And a female fitting portion 15 are fitted to each other to prevent relative displacement between the manifold bases 4.

Therefore, according to the manifold 1 of the present embodiment, the relative displacement between the manifold bases 4 can be reliably prevented. Since the nut 14 having a fastening function is effectively used, the structure for preventing relative displacement as described above can be simplified, and the structure of the manifold 1 itself can be simplified through this simplification. Can be achieved.

Further, according to the manifold 1 of this embodiment, a part of the outer circumference of the nut 14 and the female fitting portion 15 in the manifold bases 4 are fitted to each other, and the manifold bases 4 are adjacent to each other. Since the nuts 14 are connected, a thick space for embedding the nuts 14 can be reduced from the manifold base 4 side, and in this respect, the miniaturization of the manifold 1 itself can be improved.

Further, the nut 14 is inserted into the recessed nut buried portion 16 which is substantially in conformity with the hexagon of a part of the hexagon nut 14.
Is embedded so that rotation of the nut 14 is prevented, so that when the valve-side screw 3 is fastened to the nut 14, the rotation of the nut 14 can be reliably prevented, and the rotation of the nut 14 is prevented. Through this, a part of the outer periphery of the nut 14 and the female fitting portion 15 can be securely fitted to each other, so that the above-described function of preventing relative displacement can be further ensured.

Next, in the manifold 1 of this embodiment, a sealing member 11 made of an elastic material such as resin is interposed between the connecting surfaces 13 of the adjacent manifold bases 4 which are connected to each other. As shown in FIG. 2, a connection portion (sealing portion) of the input port 7 and the discharge port 8 extending continuously along the open ends of the input port 7 and the discharge port 8 of the manifold base 4 connected to each other. ) Is sealed.

Also, as shown in FIGS. 2 and 3, opposed projections 17 are formed along the open ends of the input port 7 and the discharge port 8, and as shown in FIGS.
The seal member 11 is sandwiched between the opposing projections 17 so that the displacement of the seal member 11 in the width direction is fixed.

Further, in the present embodiment, as shown in FIG. 1, the projections 17 of the manifold bases 4 adjacent to each other are opposed to each other and combined with each other to form a cavity 18 between the projections 17. , Seal member 1
The sealing member 11 is fixed in the hollow portion 18 by partially sandwiching the portion 1 in the hollow portion 18 substantially all around the cross section direction of the portion.

According to the manifold sealing structure of the present embodiment, the sealing member 1 is provided between the opposing projections 17.
Since the seal member 11 can be easily and reliably positioned at the time of assembling by inserting and sandwiching 1, the sealing member 11 can be easily and reliably assembled at the time of assembling into the seal portion. .

Further, since the seal member 11 is sandwiched between the opposing protrusions 17 and the displacement of the seal member 11 in the width direction is fixed, for example, a positive pressure is applied to the input port 7 and the discharge port 8 and the like. Even when any fluid of negative pressure flows in, the displacement of the seal member 11 can be reliably prevented.

Further, in the present embodiment, the projections 17 of the base 4 adjacent to each other are opposed to each other and combined to form a cavity 18 between the projections 17, and a part of the seal member 11 is By being sandwiched in the cavity almost all around in the cross section direction of that part,
Since the seal member 11 is configured to be fixed in the hollow portion 18, the positional shift of the seal member 11 can be more reliably prevented.

Although the invention made by the present inventors has been specifically described based on the embodiments, the present invention is not limited to the above-described embodiments, and can be variously modified without departing from the gist thereof. Needless to say.

In the above embodiment, both the recessed nut buried portion 16 and the female fitting portion 15 have a shape substantially matching the hexagonal shape of a part of the hexagonal nut 14. In the above, both or one of the nut embedded portion 16 and the female fitting portion 15 can be formed in a shape different from such a shape.

[0036]

[Effects of the Invention] Of the ideas disclosed in the present application, the effects obtained by typical ones will be briefly described.
It is as follows.

(1) According to the manifold of the present invention, by positioning the seal member between the opposing projections formed at the seal portion, the positioning of the seal member at the time of assembly can be performed easily and reliably. So you can
This makes it easier and more reliable to assemble the seal member into the seal portion.

(2) Since the seal member is sandwiched between the opposed protrusions formed at the seal portion and the seal member is fixed, for example, a positive pressure and a negative pressure are applied to a connection port sealed by the seal member. Even when any of the pressure fluids flows in, the displacement of the seal member can be reliably prevented.

(3) In the case described above, the protrusions of the manifold bases adjacent to each other are opposed to each other and combined to form a cavity between the protrusions, and a part of the seal member is When the seal member is fixed in the hollow portion by being sandwiched in the hollow portion substantially all around in the cross-sectional direction, the displacement of the seal member is more reliably prevented in any direction. be able to.

[Brief description of the drawings]

FIG. 1 is a sectional view of a manifold according to an embodiment of the present invention, taken along line II of FIG. 2;

FIG. 2 is a front view showing a manifold base of the manifold.

FIG. 3 is a partial rear view showing the manifold base.

FIG. 4 is a plan view showing the manifold.

FIG. 5 is a plan view showing the manifold base.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Manifold 2 Solenoid valve 3 Screw 4 Manifold base 5 Female screw part 6 Screw through hole 7 Input port 8 Drain port 9 Output port 10 Filter 11 Seal member 12 Through hole 13 Connecting surface 14 Nut 15 Female fitting part 16 Nut burial part 16A Screw through hole 17 Projection 18 Cavity

Claims (1)

(57) [Scope of request for utility model registration] 1. A seal member is interposed between connecting surfaces of adjacent manifold bases connected to each other, and the seal member is disposed along an opening end of an input port and an exhaust port of the adjacent manifold bases. Extended between the input ports and the discharge ports
Are connected to each other, and opposed projections located at both ends in the width direction of the seal member are provided with the input port and the discharge port of the manifold base.
Formed along the opening end of the sealing member, and the sealing member is sandwiched between the opposed projections so that the width direction of the sealing member is
Displacement to is fixed, further, adjacent said manifold
When the hold base is assembled at the time of connection,
The protrusions of the adjacent manifold bases are
They are combined with each other facing each other in the connecting direction.
A cavity is formed between the projections, and a part of the seal member is formed.
Is located in the cavity almost all around the section in the cross-sectional direction.
By being sandwiched, the sealing member is
A manifold characterized by being fixed inside .