JPS5940569Y2 - Fluid pressure cylinder with solenoid valve - Google Patents

Description

[Detailed Description of the Invention] By coaxially fixing the solenoid valve to the end of the fluid pressure cylinder and constructing these as one body, the device can be made compact.

In addition, if the diameters of the cylinder head cap and the solenoid valve are approximately the same, a flange can be provided and they can be connected using bolts and nuts. Although it is possible to attach the adapter and fit the adapter to the cylinder cap, the structure is complicated and the overall length increases.

The present invention does not have the above-mentioned drawbacks, and has an extremely simple and compact structure in which the cylinder and the solenoid valve can be integrally constructed, and the direction of piston movement when the solenoid valve is operated can be easily changed. It provides equipment.

Fig. 1 is a side view of the embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a part of Fig. 1, Fig. 3 is a sectional view taken along line A-A in Fig. 2, and Fig. 4 is a B-B in Fig. 3. -B sectional view.

That is, one end of the cylinder 2 into which the piston 1 is slidably fitted is sealed with a head cap 3, and the piston rod 4 is drawn out from the opposite end of the cylinder.

Two grooves 5, 5 perpendicular to the axis of the cylinder are symmetrically formed on the side surface of the cap 3 at an interval of 180 degrees, and an axial bolt hole 6 connects the grooves with the end surface of the cap.
A bolt 8° 8 embedded in the bottom of a cylindrical electromagnetic valve 7 is fitted into the bolt hole, and nuts 9, 9 disposed in the split grooves 5, 5 are inserted into the bolt 8. , 8 are screwed together.

A packing 10 is interposed between the electromagnetic valve 7 and the cap 3, and these are fixed coaxially by tightening the above nut.

There are also two fluid passages 11 and 12 inside the cap 3.
At the same time, holes of appropriate shapes are formed at appropriate positions in the packing 10 to connect one ends of the passages 11 and 12 to two fluid inlets and inlets 13 and 14 at the bottom of the solenoid valve 7, respectively. .

The other end of the passage 11 is opened on the head cap side of the cylinder 2, and the other end of the passage 12 is connected to the end on the piston rond drawer side by a conduit 15.

The solenoid valve 7 has a fluid inlet 16 and a discharge port (not shown) on its rear side, and when it is operated, the inlet port 16 is connected to the outlet port 13, and the discharge port is connected to the outlet port 13. 14, and when restored, the inlet 16 is connected to the outlet 14 and the outlet is connected to the outlet 13.

Therefore, when the solenoid valve 7 is operated, the piston 1 moves to the left in FIG. 2, and when it is restored, it moves to the right.

As mentioned above, the present invention makes it possible to coaxially fix the cylinder head cap and the solenoid valve without the need to form a collar or provide an adapter when the cylinder head cap and the solenoid valve have approximately the same diameter. 3. Therefore, the device can be made compact, the structure is simple, and the operation of attaching and detaching is easy.

In addition, the fluid inlet on the piston rod drawing side of the cylinder is connected to the fluid passage of the head cap, and this passage is connected to the inlet of the solenoid valve, so the position of the inlet or the hole formed in the packing is By appropriately selecting the shape, etc., the operating state of the cylinder can be easily changed by changing the mounting angle between the cylinder and the solenoid valve.

For example, in the above-described embodiment, when the solenoid valve is installed in a 180-degree rotation state, the passage 11 in FIG. 2 is connected to the inlet 14, and the passage 12 is connected to the inlet 13. Ru.

Therefore, contrary to the case described above, the piston moves to the right when the solenoid valve 7 is operated, and moves to the left when it is restored, and the relationship between the operation and restoration of the solenoid valve and the direction of cylinder operation is extremely important. It can be easily converted.

[Brief explanation of the drawing]

Fig. 1 is a side view of the embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view of a part of Fig. 1, Fig. 3 is a side view taken along A-A11 of Fig. 2, and Fig. 4
The figure is a sectional view taken along the line BB in FIG. 3. In addition, in the figure, 1 is a screw I/N, 2 is a cylinder,
3 is a head cap, 4 is a piston rod, 5 is a split groove,
6 is a bolt hole, 7 is a solenoid valve, 8 is a bolt, 9 is a nut,
10 is a packing, 11.12 is a fluid passage, 13, 14
15 is a conduit, and 16 is a fluid inlet.

Claims (1)

[Scope of utility model registration request] Two grooves perpendicular to the axis of the cylinder are symmetrically formed at an interval of 180 degrees on the side surface of the cap at the end opposite to the piston rond drawer side of the fluid pressure cylinder in which the piston is slidably fitted. At the same time, an axial bolt hole is formed to connect the split groove and the end face of the cap, and two bolts implanted in the bottom of the cylindrical electromagnetic valve are fitted into the bolt holes, whereby the inside of the split groove is fitted. The solenoid valve and the cylinder are coaxially fixed by screwing a nut disposed on the bolt onto the bolt, and two fluid passages are formed in the cap, and one end of each fluid passage is connected to the bottom of the solenoid valve. A fluid pressure cylinder with a solenoid valve, which is connected to two fluid inlets and outlets, and the other ends of the two fluid passages are respectively connected to both ends of the cylinder that are partitioned by a piston.