JPS6116408Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a valve mounting device for a hydraulic cylinder.

A valve for piston actuation of a hydraulic cylinder, for example an air cylinder, is generally connected to the cylinder by a conduit.

When the cylinder and the valve are connected via a conduit, the fluid in the piping between the cylinder and the valve is released into the atmosphere, resulting in energy being wasted. Further, by connecting via a conduit, when it is desired to increase the piston speed of the hydraulic cylinder, the presence of the conduit portion causes a loss in power transmission, which limits the speed increase. In order to eliminate various losses caused by interposing a conduit as described above, it has become popular to connect the cylinder and the valve directly.

In this case, a special bed cover is required for the cylinder in order to directly connect the valve and cylinder, and it is not possible to use an existing cylinder that is directly connected to the valve, and a special bed cover is required. This has the disadvantage of high cost.

The applicant has already proposed a mounting device that overcomes this drawback and allows an ordinary cylinder, which is widely used, to be modified into a valve-directly connected type at any time.

It is an object of the present invention to provide a mounting device that further improves the sealing effect against fluids and the accuracy or stability of valve installation when using the above-mentioned mounting device according to the present applicant.

The present invention achieves the above object by providing a flat mounting bracket having a mounting hole corresponding to a pipe connection port of a fluid pressure cylinder and having at least one side protruding from the mounting portion of the cylinder. Attach at least one pin to the protruding part of the cylinder to prevent rotation, and attach the fixing member that has a threaded part that can be screwed into the connection port of the cylinder and a fitting part that fits into the mounting hole of the mounting bracket to the cylinder. This was achieved by means of a cylinder valve mounting device, which is characterized in that it is provided for fixing the valve to the cylinder.

The details of the invention will be explained with reference to embodiments shown in the figures.

In FIGS. 1 and 2, the mounting bracket 3 is attached so as to be in contact with the surface of the cylinder head cover 1 where the piping connection port 2, that is, the intake port or the exhaust port is open.

The mounting bracket 3 is formed as a plate and has a mounting hole 4.

The mounting bracket 3 is tightly attached to the cylinder head cover 1 so that the mounting hole 4 faces the piping connection port 2 of the cylinder head cover 1, and is fixed by a fixing member 5. That is, the fixing member 5 has a threaded portion 6 screwed into the connection port 2, a fitting portion 7 fitted into the mounting hole 4, and a head 8. The head 8 has a diameter larger than that of the mounting hole 4. Since the fixing member 5 is connected to the connection port 2,
By screwing the mounting bracket 3 into the cylinder head cover 1, the mounting bracket 3 is tightly fixed to the cylinder head cover 1. At that time, the fitting part 7
determines the position of the mounting bracket 3.

The mounting bracket 3 is formed so that at least one side thereof protrudes from the cylinder head cover 1, and at least one pin hole 9 (two in the figure) is bored in the protruding portion. A spring roll pin 10 is press-fitted into the pin hole 9.

The spring roll pin 10 prevents rotation when the mounting bracket 3 is fixed by the fixing member 5. The pin 10 is not limited to a spring roll pin, but any other pin such as a normal parallel pin or a tapered pin can be used as long as it is not easily detached and can reliably prevent rotation. If necessary, it can also be a screwed pin.

A packing 11 is installed between the fitting portion 7 of the fixing member 5 and the cylinder head cover 1 to prevent fluid leakage.

The head 8 of the fixing member 5 is formed so as to fit into the valve 12, for example, a solenoid valve, and the valve also has a mounting hole into which the head 8 fits.

The valve is arranged in contact with the mounting plate 3 so that the head 8 of the fixing member 5 fits into the mounting hole, and is fixed to the mounting plate 3 with screws 13.

A through passage 14 is formed in the fixing member 5 to connect the connection port 2 of the cylinder head cover 1 and the passage of the valve 12 when the valve 12 is attached. A gasket 15 is interposed between the fixing member 5 and the valve 12 to prevent fluid leakage between the fixing member 5 and the valve 12.

According to the present invention, the valve can be fixedly fixed to the cylinder head cover by interposing the plate-shaped mounting fitting, and a stable mounting state can be ensured.

The valve is fixed to the mounting bracket with screws or the like, and there is no need to form a screw hole or the like in the cylinder head cover, so it can be widely used in ordinary fluid cylinders.

Since the mounting bracket is provided with a pin that functions to prevent rotation, the mounting bracket can be installed with one hand.

The present invention has achieved the desired purpose with a simple structure.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view showing a state of attachment by the attachment device according to the present invention, FIG. 2 is a side view, and FIG. 3 is a perspective view of the attachment fitting. 1...Cylinder (cylinder head cover), 2...Pipe connection port, 3...Mounting bracket, 4...
Mounting hole, 5...Fixing member, 6...Threaded part, 7...
Fitting portion, 8...head, 9...pin hole, 10...pin, 12...valve.

Claims (1)

[Scope of utility model registration request] a flat mounting bracket having a mounting hole corresponding to a pipe connection port of the fluid pressure cylinder, the mounting bracket being sized so that at least one side thereof protrudes beyond the mounting portion of the cylinder; At least one pin is attached to the mounting bracket to prevent rotation, and the fixing member has a screw portion that can be screwed into the connection port of the cylinder and a fitting portion that fits into the mounting hole of the mounting bracket. A valve mounting device for a cylinder, characterized in that it has as a member for fixing to the cylinder.