JPS6319672Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to improvement of a float valve, and its purpose is to improve the flow rate of the fluid in the first pipe line.
An object of the present invention is to provide a novel float valve capable of controlling the opening and closing of a pipeline.

Another object of the present invention is to provide a float valve in which the open/closed state of the valve body of the second conduit is easily indicated by the liquid volume indicated in the indicator window.

Conventional float valves depend on the amount of water in the tank.
The main methods used were to operate a float and adjust the amount of water supplied to and discharged from the tank equipped with the float, or to electrically transmit the operation of the float to adjust the amount of water supplied to other tanks or water pipes. The inventor is the first
As a result of research, we have devised a new type of float valve that can adjust the fluid flow rate in the second pipe line based on the fluid flow rate in the pipe line, and we have attempted to provide this.

Next, one embodiment of the present invention will be described based on the drawings. In the figure, reference numeral 1 denotes a float chamber installed in the first pipe line 14, in which the first fluid of the first pipe line 14 is
LA is formed into a sealed shape that can be distributed. 2 is a hollow float installed in the float chamber 1, rotatably supported on the inner surface of the float chamber 1 via a bearing 3, and floated and rotated by the first fluid LA flowing into the float chamber 1. is made possible. Reference numeral 15 denotes a second pipe line arranged in parallel with the first pipe line 14, through which the second fluid LB flows. Note that the first fluid LA is a liquid, and the second fluid LB is a liquid or a gas.

6 is a valve chamber inserted in the second pipe line 15,
The fluid in the second pipe line 15 is controlled by the internally installed valve body 5.
LB flow is stopped and adjusted. That is, the support shaft 4 fixed to the float 2 is supported by a bearing 3 fixed to the side surface of the float chamber 1, while the end of the support shaft 4 is fixed to the valve body 5 of the valve chamber 6, and the float 2
The flow rate of the second fluid LB in the second conduit 15 is adjusted by rotating by a predetermined angle in accordance with the floating rotation of the second fluid LB. In this example, when the float 2 is in a lowered state in which the free end 2B of the float 2 is located at the lowest position in the float chamber 1, the valve body 5 is oriented horizontally, the valve chamber 6 is closed, and the free end 2B of the float 2 is located at the lowest position in the float chamber 1. When the float is in a raised state where the end 2B side is located at the highest position in the float chamber 1, the valve body 5 is oriented most vertically and the valve chamber 6 is opened to the maximum extent, and when the float 2 is in a horizontal state, the valve The chamber 6 is set to be opened approximately 1/2 of the maximum open state. 12 is a protective plate such as a perforated plate installed at the bottom of the float chamber 1, and when the first fluid LA flows into the float chamber 1,
This helps prevent the float 2 from shaking.

On the other hand, an indicator window 7 indicating the floating position of the float 2 is fixed on the outer surface of the float chamber 1 on the extension of the support shaft 4 of the float 2. The indicator window part 7 is formed in a sealed shape in which the indicator liquid F is sealed, and is a transparent part with a transparent plate 8 fitted on the front surface. 10,
Reference numeral 11 denotes a soft conduit such as a rubber tube through which the indicating liquid F flows between the indicating window 7 and the center of rotation of the float 2 on the side opposite to the support axis. The other end of the soft conduit 10 is connected to the inner conduit 11A oriented toward the end 2A on the rotation center side of the float 2, and the end of the other soft conduit 10 is connected to the end 2B on the free side of the float 2.
It is connected to an internal conduit 10A led to the side.
Note that the soft conduits 10 and 11 are flexible and do not hinder the floating rotation of the float 2 in any way. F is an indicator liquid injected into the float 2, which has a lower specific gravity than the fluid LA flowing into the float chamber 1, and is injected from the normally closed injection port 9 of the indicator window 7. The injection amount of the indicator liquid F is such that when the float 2 is in a rising state, the indicator window 7 is filled with the indicator liquid F, and when the float 2 is in a horizontal state, the indicator window 7 is half filled with the indicator liquid F. and when the float 2 is in the descending state, the indicator liquid F in the indicator window 7 moves to the inner bottom of the float 2 via the soft conduit 10 and the internal conduit 10A, and the indicator window 7 is filled with the indicator liquid F.
The amount to be included is determined so that there will be no . Note that it is desirable that the marking liquid F is colored.

Therefore, the float valve 13 of this example is interposed in the first conduit 14 and the second conduit 15 of a predetermined device, and
It is used when sending the fluid LA and the second fluid LB respectively.

In the float valve 13, when the first fluid LA does not flow into the float chamber 1, the float 2 is in a descending state, the valve chamber 6 is closed by the valve body 5, and the second fluid LA does not flow into the float chamber 1.
The second fluid LB in the conduit 15 does not flow. The closed state of the valve chamber 6 can be known by the indicator window 7 which is free of indicator fluid F (see FIG. 7).

Next, when the first fluid LA makes the float 2 horizontal, the valve chamber 6 is in a half-open state, so the second fluid
A regulated amount of LB flows through the second conduit 15. The open state of the valve chamber 6 at this time can be determined by the fact that the indicator liquid F in the indicator window 7 is present at about 1/2 of the lower side of the indicator window 7 transparent plate 8 (see FIG. 8).

Further, when the first fluid LA fills the float chamber 1 and flows to raise the float 2, the valve chamber 6 is opened by the maximum amount and the second fluid LB flows by the maximum amount. The state of the valve chamber 6 at this time can be known by the indicator window 7 being filled with indicator liquid F (see Fig. 9).

The float 2 of this example is filled with an indicator liquid F,
When the float 2 is in the rising state, the indicating liquid F is located at the rotating side end, and the float 2 rises quickly, and when the float 2 is falling, the indicating liquid F is located at the free side end, and the float 2 descends quickly. The valve body 5 opens and closes quickly and has good stability. Furthermore, the buoyancy of the float 2 in this example can be adjusted by changing the amount or specific gravity of the indicating liquid F.

As explained above, in the present invention, the float floated by the fluid in the first pipe is rotatably supported on the side surface of the float chamber in the float chamber interposed in the first pipe. The shaft end is connected to a valve element of a valve chamber interposed in the second pipe line, and the valve element is rotated in relation to the floating rotation of the float in the float chamber to open and close the valve chamber. Since it is a float valve made of 100% water, the float in the float chamber can be moved up and down depending on the amount of fluid in the first pipe, and the valve body in the second pipe valve chamber can be operated depending on the degree of floating of the float. It is possible to control the fluid flow rate in the second conduit.

In the present invention, the float is hollow, and the outer surface of the float chamber is connected to the inside of the float via a soft conduit and is filled with an indicator liquid. Since the structure is formed with an indicator window that indicates the rotational position of the body by the indicated liquid volume, the opening and closing of the valve body of the second pipe valve chamber can be easily known from the indicated liquid level in the indicator window. It's convenient to get it.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention,
Fig. 1 is a front view of the float valve, Fig. 2 is a sectional view along the line shown in Fig. 1, Fig. 3 is a schematic sectional view mainly consisting of the float, and Figs. 4 to 6 are the functions of the float valve. FIGS. 7 to 9 are explanatory diagrams showing the state of the indicator liquid in the indicator window. 1... Float chamber, 2... Float, 3... Bearing, 4... Support shaft, 5... Valve body, 6... Valve chamber, 13
...Float valve, 14...First pipe line, 15...Second pipe line, LA...First fluid, LB...Second fluid.

Claims (1)

[Scope of utility model registration request] In the float chamber installed in the first conduit, a hollow float floated by the fluid in the first conduit is rotatably supported on the side surface of the float chamber, and the spindle end of the float is connected to the second conduit. The structure is such that the valve chamber is connected to a valve element of a valve chamber installed in a pipe line, and the valve chamber is opened and closed by rotation of the valve element in relation to the floating rotation of a float in the float chamber, and the outer surface of the float chamber. The is connected to the inside of the float via a soft conduit and is filled with an indicator liquid, and has an indicator window that indicates the rotational position of the valve body in relation to the floating rotation of the float by means of an indicator liquid level. A float valve that is characterized by