JPS6110178A - Device for automatically stopping supply of liquid - Google Patents

Abstract

PURPOSE:To automatically stop the supply of a liquid by acting magnetism on a valve which is moved in close to a valve seat by buoyancy of a float. CONSTITUTION:When the oil surface is caused to rise by kerosene discharged into a tank, a float 3 having a buoyancy capability for floating the whole weight of a movable member starts to float with a rise of the oil surface. When the oil surface rises until the oil feed amount reaches a fixed quantity in an oil supply tank, a magnetic piece 5 runs into a magnetic field of a magnet 6 to be adsorbed to the magnet 6. Simultaneously, a valve 4 disposed on the forward end of the movable member pointing to a valve seat 2b closes the valve seat 2b to interrupt the supply of oil. A valve opening arm 5a erected in such a manner as to freely advance and retreat is further projected.

Description

Detailed Description of the Invention This invention provides that when liquid is divided from a large container to a small container or transferred from a container to each domain using a convenient manual pump or hose, the amount of liquid in the receiving container is close to the fixed amount. intended to automatically interrupt the supply of liquid when carried to
This relates to the liquid supply automatic stop device ftIC.

Conventionally, there are types of dust removal devices that use the opening and closing of valves or those that prompt the pump to stop, but the driving force when stopping the valve or pump uses energy such as hydraulic pressure, atmospheric pressure, buoyancy, spring, or trl air. Many of these devices are operated by an indirect method, in which some kind of signal or energy is given to the valve or switch from the outside (operation method of automatically stopping when liquid is supplied to these devices), and the structure It is also complex, yet light, simple, small, and easy to handle, so there is nothing like it.

Therefore, the present invention 1's is that when the amount of supplied liquid reaches a certain level in the receiving container without any special energy or signal from the outside, the foot or permanent magnet installed inside the device An object of the present invention is to provide an automatic liquid supply stop device that automatically stops the supply of liquid using a suction force. 11 Next, in order to easily understand the present invention, let us take as an example the supply of kerosene to the fuel tank of a kerosene heater used in a general household during the winter.
To express the main points of the present invention simply, the inflow pipe portion of the automatic liquid supply stop device according to the present invention is inserted into the tip opening of the discharge side pipe of a manual pump so as to prevent liquid leakage or dripping. When the device is inserted vertically into the refueling port of the refueling tank and the manual pump is operated to start refueling, the amount of refueling is determined by the amount in the refueling tank (the tolerance indicated by the text 1 on the tank or the visual scale). When the float is about to reach this point, a valve housed inside the device so that it can float up and down and a magnetic piece are installed coaxially, and the float gains buoyancy from the inflow of kerosene and begins to rise. As the float rises, the magnetic piece rushes into the magnetic field of a permanent magnet that is oriented to act on the valve seat, and at the same time it is attracted by the attraction force of this magnet, and the valve closes the valve seat with the attraction force. This can be said to be an automatic liquid supply stop device featuring the following features.

An embodiment of the present invention shown in the drawings will be described below.

Figure 1 is an embodiment of the liquid supply automatic stop device according to the present invention, in which the upper and lower parts of the main body are made of transparent acrylic. It's called A.

[Symbol in the figure] is a stepped cylinder with openings at both ends.In this example, it is a single cylinder.The upper opening at one end is closed, and the other end is a sealed cylinder with a stepped opening. In the center of the upper surface, an inflow pipe 2a as a liquid inlet is installed from the lower end 1 to the valve seat 2b to the upper end 1, and the upper part 2 of the main body having a hole shown by 2C is shown by 6a, 6a, 63. Three radial magnet fixing plates (hereinafter simply referred to as fixing plates) are inserted into the stepped opening of the upper end opening of the lower part 1 of the main body, and are sandwiched together with the upper part 2 of the main body. ing. In the lower surface of each of the fixed plates 6a, 6a, 6a), a hole having the same diameter as the inner diameter of the ring-shaped permanent magnet (hereinafter referred to as "magnet") 6 is drilled in this example, and A magnet 6 is adhesively fixed so that both apertures fit together. child\
The series of parts described so far (main body lower part 1, main body upper part 2, inflow pipe 2a, valve seat 2b, i stone 6, fixing plate 6a, 6a, 6a
) will be collectively referred to hereinafter simply as the fixing member. A valve 4 with its conical tip facing the valve seat 2b is inserted into the holes provided in the fixing plates 6a, 6a, 6a and the magnet 6 in this fixing member so as to be able to move forward and backward. At the end, a wing 3a is provided at the end of the cylindrical outer periphery to maintain the V center of the small cylindrical inner diameter of the lower body part 1 and to prevent the buoyancy from attenuating due to the surface tension of the inflowing liquid. 3a, 3a, the lower end of this cylindrical body is sealed, and the upper end is directly connected to a valve opening 7-m 5a, which partially penetrates the hole 2C drilled in the upper part 2 of the main body so as to be freely retractable. A thin tube portion of the float 3 is inserted through a hole in the magnetic piece 5, which has a shape of 1.5 mm, and is fixed to the magnetic piece 5, and is suspended by the conical outer edge 4a of the valve 4. This series of parts (flow) 3. Valve 4. Magnetic piece 5. The valve opening arm 5a) will be collectively referred to hereinafter simply as a movable member.

(Next, please describe in more detail the component structure of one embodiment, which has the appearance described so far, with reference to FIG. 2.)

Figure 2 't1 Internal WI of the embodiment device A described in Figure 1
In order to explain the I-shaped structure, a cross-sectional view is shown when the valve opening arm 5a is vertically divided.

In FIG. 2, reference numeral 1 denotes the lower part of the main body molded from a transparent material, which is a stepped cylindrical body with openings at both ends, and the upper end opening is cut with a step in order to insert the upper part 2 of the main body. Reference numeral 2 denotes a cylinder whose one side is sealed, and the lower end of the torsion forms a valve seat 2b at the center of the upper surface in the sealed state, and an inflow pipe 2a is installed at the upper end, and a part of the upper surface in the sealed state has a valve seat 2b. , a hole 2c is made and the other end is open. The opening is cut into a stepped shape, and a fixing plate 6a163 is inserted into the upper end opening of the lower main body 1 and then fitted therein. The conical tip of the valve 4 is loosely fitted into the holes of the fixing plates 6a, 6a and the magnet 6.degree.6 of the fixing member having such a component configuration in the direction of the valve seat 2b.

This valve 4 fl! The upper end thin tube portion of the float 3 through which the magnetic pieces 5, 11 passed directly through is inserted into the opening at the two ends, and fixes the magnetic pieces 5, 5. A valve opening arm 5a directly connected to a portion of the magnetic pieces 5, 5 passes through a hole 2c made in the upper surface of the upper body part 2 so as to be able to move forward and backward.

Next, with reference to FIG. 2, the functions and means when the apparatus of the embodiment described above is actually used will be described below. The following description assumes that the apparatus is used to refuel the refueling tank of a small portable refueling tank-type kerosene heater used in a general household during the winter using a simple manual pump. First, insert the inflow pipe 2a of the device A into the tip of the discharge side pipe of the manual pump so that there is no liquid leakage, and then insert the lower end of the lower body part 1 of the device tA into the fuel tank so that it stands upright, and then
After confirming that the valve opening arm 5a is pushed in and the valve 4 is separated from the valve seat 2b, oil supply from the so-called poly tank is started. The oil discharged from the manual pump flows into the device from the inflow pipe 2a, and from the opening space of the valve seat 2b and valve 4, the radial (Xth [/
), and flows further downward from the gap formed by the inner periphery of the upper and lower body cylinders, and is discharged outside the apparatus, that is, into the oil supply tank, along the outside i5 of the float 3. The amount of kerosene released into this tank gradually increases and the oil level rises, and eventually reaches the lower end of the lower part 1 of the main body, and the oil level continues to rise.Then, the oil level continues to rise. The float 3, which has a buoyancy ability to fully float the entire weight of the movable member, which is set up inside a floatable trap, starts floating as the oil level rises. When the oil supply level reaches the level in the oil tank, the fixing plates 6a, 6aff,
Float 3 is placed in the magnetic field of magnet 6.6, which is adhesively fixed to the bottom surface.
At the same time, the magnetic piece 5.5 coaxially enters the magnet 6.
．． It is strongly attracted by the magnetic force of 6 and is attracted to the magnets 6, 6. This also means that the valve seat 2b is placed at the tip of the movable member.
The valve 4 installed in the direction of the valve seat 2b'l closes, resulting in the refueling being interrupted.At the same time, the valve opening 7-m 5a, which is installed vertically so that the hole 2CIC can move forward and backward, also protrudes. Become. This protruding valve opening arm 5at closed housing ＼
In order to remove the valve 4 from the valve seat 2b, the magnetic piece attracted to the magnet is simultaneously pulled out from within the magnetic field of the magnet. It is something that was given. Add more here and say ℃ is valve 4
It has high elasticity (such as a ring that is high in quality and has excellent pickling properties when closing the valve seat 2b, or a ring designed for pickling properties in the dense layer part of the valve seat 2b with the valve 4). You can also think of applying Eve.

Then, as a method to ensure automatic stop of oil supply, the state e4 where the magnetic piece is attracted to the magnet is of course the state where the valve is in close contact with the valve seat. It is absolutely essential that the pupils of the parts are designed with sufficient consideration given to the distance relationship before operation (in the open state). In addition, the metering position of the fuel tank and the automatic supply stop position of device A should be designed to match the fixed level (il (liquid level)) of the receiving container to be used. Alternatively, it is also conceivable to attach a depth adjustment device υ11'f, such as fixing a plate wider than the supply port of the receiving container to the outer periphery of the narrow cylindrical portion of the lower part of the main body.

Next, another embodiment of the embodiment device A described up to now will be described below.

FIG. 3 is a perspective view of the entire device including a cut-out portion, showing another embodiment of the device A described above, and the entire device is designated by the reference numeral B and will simply be referred to as the device B.

On the outer periphery of the narrow tube portion of this stepped cylindrical body with reference numeral 1'l in the figure, a non-exit 1a and an exhaust port 1b are provided, with an opening at the lower end, and an opening on the large diameter side of the upper end. The lower part of the main body? show. At the upper end opening of this lower part 11,
The upper end forms the inflow pipe z a l and the lower end forms the valve seat 2b'
A main body upper part 21 from which a valve opening arm 5 a + protrudes so as to be freely advanced and retracted is attached to the hole 2c1 (not shown in the cutaway view). In this example, a float 3' and a magnetic piece 51 are inserted into the lower end of the upper and lower bodies, and inserted into the inner periphery of the cylinder between the part and the exhaust port 1b made on the outer periphery of the lower part 11 of the main body. At the upper end of the shaft 4b which passes through the hole 6b' of the layered magnet 6' so that it can move forward and backward, there is a valve opening arm s a l.
A movable member () into which a valve 41 directly connected to a part is inserted
O-13', magnetic piece 51+++4+4b, valve 4+, valve opening member 5a') are erected on the inner periphery of the lower end of the lower part 11 of the main body so as to be freely floating and sinking by means of a crushed ring IC.

The operation of the device 1B will be explained assuming that the device B, which has a component configuration similar to that of the top, is used to refuel the fuel tank of a kerosene heater 7 in the same way as in the previous example.

First, kerosene flows from the inflow pipe 2aI, passes through the shaft 4b from the kerosene valve 41, is blocked by the magnet 61 inserted and fixed to the inner periphery of the cylinder, and is discharged into the fuel tank from the outlet 1a.

Eventually, the amount of oil in the fuel tank increases and the oil level rises, causing the float 3', which is housed in the cylinder of the lower part II of the main body, to be able to float up and down.
The oil level rises further while providing buoyancy to the surface, and the floating movable member is trapped in the space with the built-in magnet 6I.The oil level rises further while discharging the air from the exhaust port ib. Eventually, it will reach near the regular duty of the fuel tank. At this stage, the magnetic piece 5I, which has been adjusted in advance so as to be exposed to a certain amount of oil, rushes into the magnetic field of the magnet 6', and at the same time the magnetic piece 51 is strongly attracted to the magnet 6' and is attracted to it. This is true for valve 4 as mentioned above in the previous case #A.
1 results in the valve seat 2b' being closed, and refueling can be interrupted.

In this way, both the previous example device tA and the present example device 1B are characterized by the relationship between the magnet and the magnetic piece being arranged in the direction in which the valve and the valve seat act. In the above two examples, the magnetic piece was used on the movable member side, but conversely, the magnet 7 may be used on the movable member side.

So'tl! ? &K The effects of using the self-excited filtrate supply stop device according to the present invention described so far will be described in bullet points below.

(1) The best way to use it is to simply plug it into the outlet of a pump or hose.

e2) Liquid feeding can be automatically interrupted near the fixed amount in the receiving container, so there is no need to be present each time.

(3) Regardless of age or disability, it can be used reliably by visually impaired people, and it does not overflow, so if it is used to measure oil, etc., it can greatly contribute to energy conservation on a nationwide scale.

(4) TPT can be produced at low cost because no special means or expensive materials are used, and the beak is simple to make.

1 Brief explanation of the problem Figure 1 shows an actual example of the liquid supply automatic stop device according to the present invention.The main body is made of transparent acrylic.The transparent part is represented by two points 4+Is. is designated by the symbol A and called the device tA.

FIG. 2 is centered around the valve opening arm 5a with the symbol A'Y.
1VC, cross-sectional view when vertically divided Figure 3 is @Figure 1, Figure 2
Is there a different example to the example shown in the figure, as a whole including the broken part @duplicate as a whole? It is indicated by the symbol B and is called a device mB.

Main code 1.1'...Bottom part, 2,2+...Top part of main body, 2a, 2a'...Inflow agency, 2b
, 2b'... Valve seat, 3.3''-' Float, 4,41・Valve, 5,51...

Magnetic piece, 6,6... Permanent magnet, 6a...
・ Magnet fixing plate patent applicant Jyuushi Yamaguchi 3rd item

Claims (1)

[Claims] An inflow pipe that is connected to a pump or a hose and has a valve seat on a part of which the liquid flows into the stop lifting device, a float that gains buoyancy as the liquid level in the receiving container rises, and the buoyancy of this float that flows into the valve seat. An automatic liquid supply stop device comprising: a magnetic device that acts on a valve moving toward the valve; and when the valve approaches the valve seat, the magnetic device attracts the valve to the valve seat.