JPS5922380Y2 - Speed control valve for fluid pressure operated equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention provides a speed control valve for a fluid pressure operated device, in particular, the pressure fluid is passed from the fluid pressure operated device through one inlet and outlet substantially orthogonal thereto, and the one outlet and the other outlet are orthogonal to each other. The present invention relates to a speed control valve for a fluid pressure operated device that can lead to an inlet and an inlet of a fluid pressure operated device.

When attempting to control the operating speed of equipment operated by fluid pressure, such as a hydraulic cylinder or a pneumatic cylinder, a speed control valve is often directly attached to the fluid pressure operated equipment.

In other words, fluid is sent to or discharged from a fluid pressure operated device via a speed control valve, and one of the fluid inlets, which is usually protruding from the bottom of the valve, is screwed into an inlet formed on the side of a cylinder, etc. and use it.

However, in a typical speed/control valve, one fluid inlet and the other fluid inlet are provided in a straight line, and the other fluid inlet cannot be directed in a desired direction.

Therefore, when trying to orient the piping in a desired direction, it bends near the inlet and outlet, obstructing fluid flow, and attempting to prevent this requires unnecessarily long piping around cylinders, etc. The height dimension increases.

In addition, in order to make the piping simple so that the inlet and outlet points in the desired direction, it is necessary to adjust the thickness of the gaskets that are inserted into the threaded parts of the speed control valve and cylinder, but this adjustment is extremely difficult. However, there were drawbacks such as the fact that excessive tightening was often performed, which often resulted in damage to the equipment.

The purpose of this invention is to allow the direction of the inlet and outlet of the fluid to be freely selected in a desired direction parallel to the operating direction of the fluid pressure operated equipment, and to facilitate piping in any direction parallel to the operating direction of the fluid pressure operated equipment. It is an object of the present invention to provide a speed control valve for a fluid pressure operated device that can be easily controlled, the height dimension of the control valve can be shortened, and fluid leakage can be prevented.

To achieve this objective, the present invention provides a system in which the axes of a fluid pressure operated device and one fluid inlet provided on the bottom surface of the cylindrical body of the speed control valve are substantially perpendicular to each other, and The axes of the other inlet and outlet formed on the side surface of the cylindrical body are substantially perpendicular to each other, and the cylindrical body allows the other inlet and outlet to be aligned in a desired direction within a plane parallel to the operating direction of the fluid pressure operated device. It is designed to be screwed and fixed to fluid pressure operated equipment.

Hereinafter, the present invention will be described in detail according to an embodiment shown in the drawings.

FIG. 1 is a side view of a speed control valve 1 according to an embodiment of the present invention attached to a fluid inlet and outlet of a fluid pressure cylinder 2 as an example of a fluid pressure operated device, and FIG. 2 is a side view of the speed control valve 1 according to an embodiment of the present invention. FIG. 3 is an enlarged vertical cross-sectional view of main parts.

The speed control valve 1 of this embodiment has a cylindrical or rectangular cylindrical main body 3 with one fluid inlet 4 protruding from the bottom, a nut 5 rotatably and loosely fitted, and a tip of the inlet 4. The ends of the nut 5 are formed with pots 6 and 7 that engage with each other to prevent the nut 5 from slipping out.

The outlet port 4 is press-fitted into the main body 3 and fixed so that it cannot be removed, and the main body 3, the outlet port 4, and the nut 5 are integrally formed.

One of the above-mentioned outflow ports 4 is attached to the fluid pressure cylinder 2 so that the axes thereof are substantially perpendicular to each other.

Further, a cylindrical connecting bushing 8 connected to the outflow port 4 is screwed onto the nut 5, and a packing 9 such as an O-ring is inserted between the bushing 8 and the end surface of the outflow port 4. .

Furthermore, the main body 3 has the other outlet 10 on its side.
are arranged so that the axes of the inlets 4 and 10 are perpendicular to each other, and two fluid passages 11 and 12 are provided to connect the inlets 4 and 10.
A check valve 14 pressed by a spring 13 is disposed at the stepped portion of the passage 12, and a needle valve 16 is coaxially protruded from a screw 15 screwed into the main body 3. It is fitted.

That is, the fluid sent from the outflow port 4 is discharged from the outflow port 10 with its flow rate controlled by the two dollar valve 16, and conversely, the fluid sent from the outflow port 10 pushes the check valve 14 open. and is sent out from the inlet 4.

Next, the operation of this embodiment will be explained.

When installing the speed control valve 1 as described above to the cylinder 2, first unscrew the connecting bush 8 from the nut 5, insert the packing 18 into the fluid inlet/outlet 17 of the cylinder 2, and screw the connecting bush 8. .

Next, the nut 5 is screwed onto the connecting bush 8, and the nut 5 is firmly tightened and fixed to the connecting bush 8, with the inlet 10 formed on the side surface of the main body 3 facing in a desired direction.

Thereby, the bush 8 and the inlet 4 are connected to each other by the screwing of the nut 5 and the engagement of the collars 6 and 7.

The connecting portion between the bushing 8 and the outflow port 4 is sealed with a packing 9 such as an O-ring, and the speed control valve is opened with the outflow port 10 facing any direction within a plane parallel to the operating direction of the cylinder 2. 1 is fixed to cylinder 2.

After the speed control valve 1 has been installed in this manner, a fitting 19 is attached to the inlet/outlet 10 and a flexible conduit 20 is connected to the fitting 19.

As explained above, according to the present invention, the axes of the fluid pressure operated device and one fluid inlet provided on the bottom surface of the cylindrical body of the speed control valve are substantially orthogonal to each other, and the one fluid inlet The axes of the cylindrical body and the other inlet formed on the side surface of the cylindrical body are substantially orthogonal to each other, and the cylindrical body allows the cylindrical body to move the other inlet in a desired direction within a plane parallel to the operating direction of the fluid pressure operated device. By screwing and fixing the speed control valve to the fluid pressure operated device using a nut and a connecting bush, the speed control valve can be attached to the fluid pressure operated device with the other inlet and outlet on the side of the cylindrical body facing in the desired direction. It can be installed easily and easily in any direction in a plane parallel to the hydraulically operated equipment.

Moreover, according to the present invention, the dimension of the cylindrical body in the height direction of the control valve can be reduced.

In addition, according to the present invention, bending of the piping may occur,
Alternatively, unnecessary long piping is not required, and the speed control valve has a simple structure, has a small number of parts, and can be manufactured at low cost.

Further, in the present invention, the cylindrical body is oriented with the other inlet and outlet in a desired direction within a plane parallel to the fluid pressure operated device, and then is screwed and fixed to the fluid pressure operated device using a nut and a connecting bush. Therefore, there is no need for a sliding part, and it is possible to prevent fluid leakage due to wear, change in piping direction due to external force, bending of piping, etc.

[Brief explanation of the drawing]

FIG. 1 is a side view of a speed control valve according to an embodiment of the present invention attached to a cylinder, and FIG. 2 is an enlarged vertical cross-sectional view of the main parts of the speed control valve. In the figure, 1 is a speed control valve, 2 is a cylinder, and 3 is a speed control valve.
is the main body of the valve, 4 and 10 are the inlet and outlet ports, 5 is the nut, and 6 and 7
Hatsuba, 8 is a connecting bush, 9 is a patch, 11.12
is a fluid passage, 13 is a spring, 14 is a check valve, 15 is a spring;
16 is a needle valve, 17 is an outflow inlet, 18 is a packing,
19 is a joint, and 20 is a conduit.

Claims (1)

[Scope of utility model registration request] A nut is fitted into one of the fluid inlets protruding from the bottom surface of the cylindrical body, and the tip of the one outflow inlet and the nut are provided with mutually engaging flanges to prevent the nut from escaping. At the same time, a connecting bush which is connected to the one outlet and is screwed onto the fluid pressure operated device is screwed onto the nut, a packing is inserted between the one of the outlets and the connecting bush, and a bushing is inserted between the one outlet and the connecting bush. A fluid flow rate control mechanism is provided between the inlet and the other outlet formed on the side surface of the cylindrical body in a plane parallel to the operating direction of the fluid pressure operated device, and the fluid pressure operated device and the one of the above The axes of the inlet and outlet of the cylindrical body are substantially orthogonal to each other, the axes of the one outlet and the other outlet are substantially orthogonal to each other, and the nut and the connecting bush are connected to the other outlet of the cylindrical body. A speed control valve for a fluid pressure operated device, characterized in that the inlet is screwed and fixed in a desired direction in a plane parallel to the operating direction of the fluid pressure operated device.