JPS593229Y2 - Inflow valve separation mechanism in oil volume regulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an inlet valve separation mechanism in an oil amount regulator mainly used in an oil supply path of an oil combustor.

It is desirable to use a rubber valve for this type of inflow valve in order to improve its closing function, but if a rubber valve is kept closed for a long period of time, the valve stem will stick tightly to the valve seat and it will be difficult to open the valve. This is accompanied by some inconvenience.

In order to solve this problem, it is known to remove the close contact by rotating the inflow valve by operating a control lever, as known from Japanese Patent Application Laid-open No. 52-108525.

However, in this type of device in which peeling is attempted only by rotation, the rubber piece is attached to the tip of the valve rod by fitting or molding, so a simple peeling operation by rotation has the disadvantage that the rubber piece is likely to break.

The present invention was devised in view of the current situation, and includes an inflow valve 6 at the inlet 2 of the oil chamber 1 that keeps the oil level constant by moving the valve rod 4 toward and away from the valve seat 5 by vertical movement of the float 3. , which is provided with a locking mechanism 7 that closes the inflow valve 6 when the oil level in the oil chamber 1 becomes abnormally high, and an operation lever 8 that unlocks the locking mechanism 7, from the valve rod 4. A hook piece 9 is made to protrude laterally, and a retainer 10 is provided on the operating lever 8 to engage with the hook piece 9 and to give upward movement and rotation to the valve rod 4.

In the illustrated valve rod 4, a flange plate 11 is provided on the upper part, an arm piece 12 is provided from the flange plate 11, and a hook piece 9 is provided at the tip of the arm piece 12.

The lock mechanism 7 is attached to a support fitting 13 provided at the top of the oil chamber 1.
A lock plate 15 whose end is supported pivotally and whose free end is springed downward by a spring 14, that is, in the direction of pushing down the valve rod 4;
The lever 17 comprises a lever 17 having a jaw 16 at one end that locks the free end of the lever in a raised state against a spring 14.
7 is configured so that when the oil level in the oil chamber 1 becomes abnormally high, the other end moves upward and the lock plate 15 is released from the jaw 16.

The operation of this lever 17 is shown in the figure, which is housed in a second oil chamber 18 provided within the oil chamber 1 and provided with a second float 19.
Although the float 19 is connected to the other end of the lever 17 so that the lever 17 is operated when the oil level becomes abnormally high, it is also possible to operate the lever 17 using the float 3.

The operating lever 8 is pivotally supported in the middle by a support metal fitting 13 and is provided to be able to swing up and down, and a lock plate 15 is provided at the tip of the operating lever 8.
A claw piece 21 that pushes up the free end against the spring 14 and locks it to the jaw part 16 is provided, and the retainer 10 that engages with the hook piece 9 is provided on the rear end side.

Next, the operation of this device will be explained.

When shipped or not used for a long period of time, the free end of the lock plate 15 is separated from the jaw 16, and the inflow valve 6 is locked by the lock plate 15.

To use it, the outer end of the operating lever 8 is then pressed down.

When doing so, the free end of the lock plate 15 is pushed up with the claw 21 to engage the free end with the jaw 16 of the lever 17.

At this time, the locked state of the inflow valve 6 by the lock plate 15 is released.

Therefore, the valve rod 4 is moved upward by the spring 22, so that oil flows into the oil chamber 1 from the inlet 2, and thereafter the inlet valve 6 is controlled to open and close only by the float 3.

However, if the inflow valve 6 is kept closed for a long period of time, the valve seat 5
A situation occurs in which the valve rod 4 is in close contact with the valve and the valve does not open.

At this time, when the outer end of the operating lever 8 is pushed upward, the retainer 10 engages with the hook piece 9, thereby pushing the hook piece 9 laterally and pushing it up to perform the operation. In order to do this, the valve lever 4 rotates and moves upward relative to the valve seat 5, so that the close contact is easily released.

As described above, according to the present invention, the hook piece 9 is made to protrude laterally from the valve rod 4, and the hook piece 9 is engaged with the operating lever 8, so that the valve rod 4 is provided with an upward movement and a rotational movement. Since the interlock 10 is provided, both upward movement and rotational movement can be applied to the valve rod at the same time by the operation of the operating lever.This has the effect that the valve rod that is in close contact with the valve seat can be easily separated. There is.

[Brief explanation of drawings]

The drawings show one example of the implementation of the present invention; Fig. 1 is a cutaway side view, Fig. 2 is a plan view of a portion thereof, and Fig. 3 is a slope view showing the relationship between the inflow valve and the operating lever. . 1...Oil chamber, 2...Inflow port, 3...
... Float, 4 ... Valve rod, 5 ... Valve seat, 6 ... Inflow valve, 7 ... Lock mechanism,
8... Operation lever, 9... Hook piece, 10.
... Engagement element.

Claims (1)

[Scope of utility model registration request] An inflow valve 6 is provided at the inlet 2 of the oil chamber 1 to keep the oil level constant by moving the valve rod 4 toward and away from the valve seat 5 by vertical movement of the float 3, and the oil level in the oil chamber 4 has become abnormally high. In a device that is provided with a lock mechanism 7 that locks the inflow valve 6 in a closed state and an operation lever 8 that unlocks the lock mechanism 7, a rubber valve 4a is provided at the tip of the valve rod 4, and the valve rod 4 is In this oil amount regulator, a hook piece 9 is made to protrude laterally from the valve rod 4, and a retainer 10 is provided on the operating lever 8, which engages with the hook piece 9 and gives upward movement and rotation to the valve rod 4. Inflow valve separation mechanism.