JP2004163285A - Float device for detecting water level - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a float device which obtains an effect equivalent to or more than that of a larger float even when the float is small. <P>SOLUTION: A rope 6 whose one end is fixed to the float 1 is suspended from a pulley 5 provided underwater, and is then turned up so that the other end is connected to an end of a rod 7 of a float valve. A weight 8 for assisting the buoyancy of the float 1 is mounted between the rod 7 and the pulley 5. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a float device for detecting a water level.
[0002]
[Prior art]
A conventional float device has a structure in which a float is directly connected to an end of a rod of a float valve, as is well known as a float device for a flush toilet.
[0003]
[Non-patent document 1]
"World Encyclopedia 28", Heibonsha, April 25, 1972, P.M. 22
[0004]
[Problems to be solved by the invention]
In the conventional float device, when a large buoyancy is required for opening and closing the float valve due to its structure, the size of the float must be increased, and the device is enlarged to secure the space.
[0005]
Therefore, an object of the present invention is to provide a float device that can obtain the same effect as a larger float even if the float is small.
[0006]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 hangs a rope having one end fixed to a float on a pulley provided in the water, and then turns the other end of the float valve to the other end. A float device for detecting a water level, wherein a weight connected to one end and assisting buoyancy of the float is attached between a rod and a pulley.
[0007]
The invention according to claim 2 is characterized in that, in the invention according to claim 1, after the suspension on the pulley, the folded rope is connected to one end of the rod through the center hole of the float. Float device.
[0008]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the suspended rope is suspended on the pulley provided above and then connected to one end of the rod of the float valve. This is a float device for detecting a water level.
[0009]
According to a fourth aspect of the present invention, both ends of a pipe skewered and fixed to a float are mounted on a through hole of a bracket so as to be able to move up and down, and a rope having one end fixed to the float or the pipe is suspended in a pulley provided in water. After that, the weight is turned back and the other end is inserted into the pipe from below and connected to one end of the rod of the float valve with or without a pulley, and a weight that assists the buoyancy of the float is provided between the float and the pulley or the rod. It is a float device for detecting a water level, which is attached.
[0010]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, characterized in that a turnbuckle for adjusting the length of the rope is provided between the float and the rod of the float valve. With this configuration, the reference position for driving the float valve can be finely adjusted.
[0011]
According to a sixth aspect of the present invention, in implementing the fifth aspect of the present invention, a bracket for designating the reference position of the float is provided so as to be easy to set the reference position of the float and to provide stability. is there.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 is a side view showing an example of the simplest configuration of the present invention. 1 is a float provided with a vertical hole 2 at the center, 3 is a bracket provided in the water of a side wall 4 of a water tank or a waterway, and 5 is a bracket 3 thereof. The attached pulley, 6 is a rope made of nylon rope, stainless steel chain, etc., 7 is a rod of a float valve (not shown), and 8 is a weight which helps buoyancy (driving force of the rod 7) from the float 1.
[0013]
One end of the rope 6 is fixed to the float 1, the other end is suspended on the underwater pulley 3, and after the rope 6 is folded, the rope 6 is inserted upward from below into the vertical hole 2 of the float 1, and the other end is connected to the end of the rod 7. And a weight 8 is provided between the float 1 and the rod 7.
[0014]
In this configuration example, one pulley is provided in the water, and the rope 6 is inserted through the vertical hole 2 of the float 1. However, two pulleys for suspending the rope 6 are provided in the water at a distance, and the rope 6 is floated. May be connected to the rod 7 of the float valve without passing through the vertical hole.
[0015]
In the float device of these configurations, when the water level rises, the rope 6 is pulled downward by the buoyancy of the float 1 and the rod 7 is swung downward to operate the float valve in the same manner as the conventional float device. However, since the weight 8 is provided below the rod 7, it assists the driving force of the rod 7 due to the buoyancy of the float 1, sensitizes the operation of the float valve, and directly mounts the conventional rod on the float. In the case of (1), the float valve operates when the water level is displaced by 10 cm or more. However, according to the method of the present invention, it is possible to realize a float device that operates even when the water level fluctuates in millimeter units. The adjustment in millimeter units can be put to practical use by providing a turnbuckle for adjusting the length in the middle of the rope. In addition, since the float can be reduced in size, the space required for setting the float device can be reduced, and a device that does not obstruct the waterway can be provided.
[0016]
The embodiment shown in FIG. 1 is a case where the float valve operates when the rod 7 moves downward. However, if the float valve operates when the rod 7 moves upward, the pulley is moved upward. And the rope 6 may be suspended from the pulley, and then the end may be connected to the rod of the float valve.
[0017]
【Example】
FIG. 2 shows an embodiment in which the present invention is applied as a water level detecting device of an up-and-down type floodgate. 1 is a float, 2 is a vertical hole provided at the center of the float 1, and 3 is provided on a channel side of a side wall 4. Brackets 5, 5 are pulleys provided on the bracket 3, 6 are ropes, and 8 is a weight in the same manner as shown in FIG.
[0018]
In this embodiment, a stainless steel pipe 9 skewered into the vertical hole 2 of the float 1 is attached to the float 1 via the mounting brackets 10, 10, and the through holes of the brackets 11, 12 in which the upper and lower sides of the pipe 9 are provided on the side wall 4. And one end of the rope 6 is fixed to a stopper 13 at the upper part of the pipe 9, the other end is passed down through the pipe 9, suspended on the pulley 5, turned back, and turned back on the pipe 9. The inside is passed upward from below, suspended on pulleys 15 and 16 attached to a bracket 14 provided above via weights 8, and connected to a rod 7 of a float valve via a turnbuckle 17. The bracket 12 determines the reference position of the float 1 and is attached to the bracket 3 so as to be adjustable with a fastener 18 composed of a bolt and a nut.
[0019]
According to this configuration, when the water level rises to a predetermined position, the rod 7 of the float valve is pulled and the float valve operates as in the above-described embodiment, but the flow of the water causes the float 1 to move. Since it does not swing, there is an effect of preventing malfunction of the float valve.
[0020]
By operating the turnbuckle 17 to adjust the length of the rope 6, the operation of the float valve can be finely adjusted in millimeters. Then, by adjusting the bracket 12 (the reference position designation bracket) after the adjustment to prevent the float 1 from sinking, it is possible to perform an accurate setting that is not affected by the flow.
[0021]
In this embodiment, the end of the rope 6 is fixed to the upper part of the pipe 9, but may be fixed to the lower part. Further, in this embodiment, the weight 8 and the turn length buckle 17 for adjusting the rope length are provided, but the turn buckle 17 may be provided instead of the weight 8 instead of being provided on the outside of the side wall, and may also be used as the weight.
[0022]
【The invention's effect】
As is apparent from the above description, the weight of the weight 8 assists the buoyancy, so that the float can be reduced in size, which has the effect of contributing to the size reduction of the float device itself. Further, it has the effect of improving the sensitivity to changes in water level, and is excellent as a new type of float device.
[Brief description of the drawings]
FIG. 1 is a side view showing a simple configuration according to an embodiment of the present invention.
FIG. 2 is a partially cut-away side view of the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Float 2 Vertical hole 3,11,12,14 Bracket 4 Side wall 5,15,16 Pulley 6 Rope 7 Rod 8 Weight 9 Pipe 10 Mounting bracket 13 Clamp 17 Turnbuckle 18 Clamp

Claims (6)

After suspending a rope having one end fixed to the float on a pulley provided in the water, turning it back and connecting the other end to one end of the rod of the float valve, and attaching a weight that aids the float's buoyancy between the rod and the pulley. Characteristic float device for water level detection. The float device for detecting a water level according to claim 1, wherein, after being suspended on the pulley, the folded rope is connected to one end of a rod of the float valve after passing through a center hole of the float. The float device for detecting a water level according to claim 1 or 2, wherein, after being suspended on the pulley, the folded rope is suspended on a pulley provided above and connected to one end of a rod of the float valve. Both ends of the pipe skewered and fixed to the float are attached to the through holes of the bracket so as to be able to move up and down, and a rope fixed at one end to the float or the pipe is suspended on a pulley provided underwater, and then folded back and the other end is connected to the pipe. Water level detection characterized in that a weight is inserted between the float and the pulley or the rod with or without a pulley and connected to one end of a rod of the float valve, and a weight for assisting the float of the float is attached between the float and the pulley or the rod. For float equipment. The float device for detecting a water level according to any one of claims 1 to 4, wherein a turnbuckle for adjusting a rope length is provided between the float and a rod of the float valve. The float device for detecting a water level according to claim 5, wherein a bracket for designating a reference position of the float is provided so as to be adjustable.

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