JPS6119210Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a manifold block coupling device.

As shown in FIG. 1, a conventional method of connecting manifold blocks is to install a trapezoidal connecting fitting 3 across ribs 2, 2 formed at the joint ends of adjacent manifold blocks 1, 1, There is a method of fixing the connecting fitting 3 with bolts 4.

However, this type of connection method
Since the sides 5, 5 tend to deteriorate over time and lose strength, the bonding force gradually weakens, resulting in a disadvantage that rattling and fluid leakage are likely to occur.

In view of the above, the present invention aims to provide a connecting device that can maintain the bonding force of the connecting fittings over a long period of time. The connecting fitting is sandwiched between the left and right tightening edges, and the clamping pressure of the tightening edges presses the inclined side edge of the connecting fitting against the tapered surface of the split trapezoidal boss.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings. In FIGS. 2 and 3, 10,
10, . . . are manifold blocks to be connected to each other, and a connecting recess 11 is cut in the joint surface 10a of each manifold block 10, and the recess 1
There is a tapered surface 13 on the joint surface 10a side in 1.
A split trapezoidal boss 12 is provided with a semicircular groove 14, and a fastening fitting fitting hole 15 is cut behind the split trapezoidal boss 12 in a direction perpendicular to the joint surface 10a. The recess 11 is communicated with the split trapezoidal boss 12 through a through hole 16 provided on the side of the tapered surface.

The connecting fitting 17 for connecting the manifold blocks 10 has a trapezoidal shape with inclined side edges 18 on the left and right sides that contact the tapered surface 13 of the split trapezoidal boss 12. A folded part 18a that is slightly inclined outward is provided, and a mounting hole 19 is bored in the center of the front surface of the connecting fitting 17, and the connecting fitting 1 is attached with a bolt 20.
The tightening fitting 21 for tightening and fixing 7 has a groove shape with springy tightening sides 22 on the left and right sides,
The tightening side 22 is curved inward, and the tightening metal fitting 2
1 is provided with a threaded portion 21a for a bolt 20 formed by fixing a nut.

When connecting the manifold blocks 10, 10 described above, as is clear from FIG.
The tapered surfaces 13, 13 have inclined sides 18, 18.
The connecting fitting 17 is installed in a state where the two are in contact with each other, and the above-mentioned tightening fitting 21 is fitted into the tightening fitting fitting hole 15, and the tightening sides 22, 22 of the tightening fitting 21 are fitted.
is inserted into the through holes 16, 16 and connects the connecting fitting 17.
The folded portions 18a, 1 at the tips of the inclined sides 18, 18 of
8a, thereby tightening the tightening side 2.
The inclined sides 18, 18 are sandwiched between 2, 22.

In this state, from the front of the connecting fitting 17, attach the mounting hole 19.
When the bolt 20 is screwed in through the semicircular groove 14 and the connecting fitting 17 and the tightening fitting 21 are tightened and fixed to each other, the inclined sides 18, 18 of the connecting fitting 17 are turned inward by the tightening sides 22, 22. and is pressed against the tapered surfaces of the split trapezoidal bosses 12, 12.

In this case, if the clamping sides 22, 22 of the clamping fitting 21 are brought into contact with the outer wall 11a of the recess 11, outward deformation of the clamping sides 22, 22 can be prevented. The tightening effect can be further enhanced.

As detailed above, according to the connecting device according to the present invention, the slanted sides of the connecting fittings are sandwiched between the left and right tightening sides of the fastening fittings, and the problem occurs when both fittings are tightened and fixed with bolts. Since the inclined sides are brought into pressure contact with the tapered surfaces of the split trapezoidal bosses by the clamping pressure of the tightening sides, it is possible to increase the bonding force of the connecting fittings and to maintain the bonding force for a long period of time. can.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view showing a conventional connection method, FIG. 2 is a perspective view of the main parts of the connecting device of the present invention in an exploded state, and FIG. 3 is a cross-sectional view of the main parts in a connected state. 10...Manifold block, 10a...Joint surface, 11...Recess, 12...Divided trapezoidal boss, 1
3... Tapered surface, 15... Tightening fitting fitting hole, 1
7... Connecting fitting, 18... Inclined side, 20... Bolt, 21... Tightening metal fitting, 22... Tightening side.

Claims (1)

[Scope of utility model registration request] A connecting recess is cut in the joint surfaces of the manifold blocks to be connected to each other, and a split trapezoidal boss with a tapered surface is provided on the joint surface side in the recess,
A tightening fitting fitting hole communicating with the recess is cut behind the divided trapezoidal boss in a direction perpendicular to the joining surface, and an inclined side edge that abuts the tapered surface of the boss is provided between the divided trapezoidal bosses in the adjacent manifold block. At the same time, in the above-mentioned fastening fitting fitting hole, a fastening fitting having spring-like tightening sides on the left and right is placed between the tightening sides of the above-mentioned connecting fitting. The tapered surface of the trapezoid boss divides the inclined side of the connecting fitting via the tightening side of the tightening fitting by straddling the inclined sides in a pinched state and tightening the connecting fitting and the tightening fitting with bolts. A manifold block connecting device characterized in that the manifold block is brought into pressure contact with the manifold block.