JPH041422Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a valve manifold used for a valve that supplies fluid pressure and vacuum pressure to industrial equipment.

[Prior Art] The valve manifold described in Japanese Utility Model Publication No. 53-10573 connects valve mounting bases with a seal member interposed between their connecting surfaces, and provides adjacent valve mounting bases on each valve mounting base. A desired number of valve mounts are connected by inserting a connecting bolt into the connecting hole and repeating this process.

The valve manifold described above has a higher
This is advantageous in that a desired number of valve mounts can be connected, but since the head of the connection bolt is embedded in the bolt insertion hole of the valve mount, it is difficult to align the valve mounts when connecting. is troublesome.

[Problem to be Solved by the Invention] The problem to be solved by the invention is to provide a valve manifold in which positioning of the valve mounting base is easy when the valves are installed in series.

[Means for solving the problem] In order to solve the above problem, in the present invention,
A plurality of valve mounting bases each having a plurality of fluid passages opening to the valve mounting surface and a plurality of through passages penetrating between the opposing connecting surfaces and communicating with the fluid passage,
In the valve manifold connected through a sealing member between them, the valve mounting base has a connection hole penetrating in the connection direction;
A seat for supporting the head of the connecting bolt in the connecting hole, and a head accommodating part for positioning which is opened in each of the connecting surfaces on both sides and into which the head is inserted are provided, and the connecting direction of these head accommodating parts is provided. Make the sum of the lengths slightly longer than the axial length of the head,
The connecting bolt has an axial female thread in its head into which another connecting bolt is screwed, and the connecting bolt inserted through the connecting hole of the valve mounting base is screwed into the female thread of the connecting bolt in front of it. It is characterized by combining multiple valve mounts by doing so.

[Operation] A desired number of valve mounts are connected by screwing the connecting bolt inserted through the valve mount into the female threaded portion of the front connecting bolt and repeating this process one after another.

In this case, when the head accommodating part of the valve mount is fitted to the head of the connection bolt protruding from the connection surface of the front valve mount, the positions of the through passages of these valve mounts will match, so the connection will be completed. It is easy to align the valve mounting base during operation.

[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention, in which a valve manifold includes a plurality of valve mounting bases 1,
……, side plate 2 attached to the end face of the manifold,
2, adjacent valve mounts 1, 1, and connecting bolts 3, .

Each valve mount 1 has opposing connecting surfaces 14,1
4, two through passages 10, 10 (supply passage and exhaust passage) and output ports 11, 11 opened at end faces perpendicular to the connection direction, the through passages 10, 10 and the output ports 11, 11 communicates with a plurality of fluid passages 12, . . . that pass through the valve mounting base 1 and open to the valve mounting surface 13.

Further, the valve mounting base 1 has a plurality of connecting holes 15, . Head accommodating part 1 for positioning into which the above-mentioned head of the opening 15 is inserted.
7 and 17, respectively, and head housing portions 17 and 1.
The sum of the connecting direction lengths of the heads 7 is made slightly longer than the axial length of the head, and a sealing member 18 is inserted into a groove formed in one of the opposing connecting surfaces 14.

One of the side plates 2 has an input port 21 and a discharge port 22 that communicate with the through passages of the valve mounting base 1 separately on the end face, and a mounting hole 23 with a counterbore on the opening face. A head accommodating portion 24 into which the head 31 of the connecting bolt is inserted is provided at the end. Further, the other side plate 2 is provided with a convex portion 25 that fits into the head accommodating portion 17.
5 is formed with a female threaded portion 26 into which the connecting bolt 3 is screwed.

As shown in FIG.
A female threaded portion 34 into which the head 3 is screwed is provided, and a groove 35 for a rotary tool is formed in the end face of the head 31. In addition, in the figure, the reference numeral 27 indicates the valve mounting hole;
28 is a mounting hole of the manifold, and 38 is a washer.

Next, the connection operation of the valve mount 1 in the above embodiment will be explained.

Fitting the head accommodating portion 17 of the valve mount 1 into the protrusion 25 of the side plate 2 having the protrusion 25, and bringing the connecting surface 14 of the valve mount 1 into contact with the side plate 2;
Male threaded portion 3 of connecting bolt 3 inserted into connecting hole 15
3 is screwed into the female threaded portion 26 of the side plate 2, the head 31 comes into pressure contact with the seat 16 via the washer, and the two are connected.

Next, when the head accommodating portion 17 of the next valve mount 1 is fitted into the head 31 of the connection bolt 3 that partially protrudes from the connecting surface 14 and the connecting surfaces 14 are joined together, the valve mount 1, 1 through passage 1
0, ... match, and the valve mounting base 1 is connected by screwing the next connecting bolt 3 through the connecting hole 15 into the female threaded part 34 of the preceding connecting bolt 3. The operation may be repeated to connect and connect a desired number of valve mounts. Therefore, alignment of the connected valve mounts is extremely easy.

After the desired number of valve mounts 1 are combined,
The head housing space 24 of the other side plate 2 is fitted into the head 31 of the connecting bolt 3, and the countersunk screw 36 is screwed into the female threaded portion 34 of the connecting bolt 3 through the mounting hole 23, thereby assembling the desired number of valve mounting bases 1,... Obtain a valve manifold that is combined with...

Since the above manifold is connected by connecting bolts 3 for each valve mount, basically there will be variations in the tightening force of the connecting bolts, but the desired number of valve mounts can be connected. Even if some of the connecting bolts are tightened somewhat loosely during the process, if they are subsequently tightened with a relatively large tightening force, the tightening force will be applied first because the connecting bolts themselves are interconnected. It is also transmitted to the connecting bolts that have been tightened, and the tightening force is equalized.

Furthermore, even if some of the connection bolts become loose during use of the manifold and fluid leaks from between the joint surfaces of the valve mounting base in that part, the countersunk screws 36 can be strongly tightened.
The tightening force is transmitted to the valve mounting base at the leaking part, making it possible to temporarily suppress fluid leakage.

[Effects of the invention] The valve manifold of the present invention allows the valve to be installed by fitting the head housing of the next valve mount into the head of the connecting bolt screwed onto the front valve mount. Since the mounting bases can be aligned, it is easy to operate the valve mounting bases in series.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of an embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 is a perspective view of a connecting bolt. 1... Valve mounting base, 3... Connection bolt, 10
... Penetration path, 12 ... Fluid passage, 13 ... Valve mounting surface, 14 ... Connection surface, 15 ... Connection hole, 16
... catch seat, 17 ... head accommodating section, 18 ... sealing member, 31 ... head, 34 ... female thread section.

Claims (1)

[Claims for Utility Model Registration] A plurality of valve mounting bases each having a plurality of fluid passages opening to the valve mounting surface and a plurality of through passages penetrating between opposing connecting surfaces and communicating with the fluid passages. , in a valve manifold that is connected through a sealing member between them, the valve mounting base has a connecting hole that penetrates in the connecting direction, and a receiver that supports the head of a connecting bolt in the connecting hole. A seat and positioning head accommodating portions that are open on both connecting surfaces and into which the heads are inserted are provided, and the sum of the lengths of these head accommodating portions in the connecting direction is slightly longer than the length of the head in the axial direction. However, the connecting bolt has an axial female thread in its head into which another connecting bolt is screwed, and the connecting bolt inserted into the connecting hole of the valve mounting base is inserted into the female thread of the preceding connecting bolt. A valve manifold characterized in that a plurality of valve mounting bases are connected by screwing together.