JPS5932709B2 - Magnetic on-off valve - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an on-off valve used for controlling the passage and flow rate of various fluids, and more particularly to a magnetic on-off valve using a permanent magnet.

As on-off valves, various structures have been devised and widely used.

Generally used on-off valves have a valve function part, which consists of a valve seat provided in a valve box and a valve body that seats and leaves the seat, inside the valve, and a needle or lever that operates it. Since the operating parts are located externally and easily accessible, these parts are normally connected by a valve stem so that they can operate in conjunction with each other.

Therefore, a sealing device such as a gland packing is installed at the point where the valve stem passes through the valve body, but since the valve stem moves a lot, the internal fluid inevitably leaks, so a completely sealed type is required. This is a fatal drawback of this type of on-off valve.

For example, diaphragm valves and electromagnetic valves are known as devices that can overcome these difficulties.

However, all of these systems have complex structures and frequently break down, and they require separate piping, wiring, and control equipment, as well as a fluid source for operating the diaphragm tongue and a power source for operating the electromagnet, making them extremely expensive. there were.

Therefore, although it could be used for automatic control, it could not be used for other general purposes.

The present invention was devised in view of the problem of slanting and to solve this problem.The purpose of the present invention is to completely seal the valve function part, and to connect the fluid source, power supply, and piping. The purpose of the present invention is to provide a magnetic on-off valve that does not require wiring, control equipment, etc.

The magnetic opening/closing valve of the present invention includes a magnet body that has a built-in permanent magnet and which can obtain an excited magnetized state by moving the magnet, and a magnet body that is attached to the magnet body so that the inside thereof is sealed, and is attached to the person exit and these parts. A valve box is provided with a valve seat in the middle of a through hole that communicates with the valve body, a magnetic plate is provided in the valve box and is attracted to the magnet body when it is in an energized state, and a valve seat is provided in the valve box and is attached to the valve seat. a link mechanism that is interposed between the magnetic plate and the valve body and moves the magnetic body and the valve body reciprocally so that the valve body rests on the valve seat when the magnet body is energized. There are certain characteristics.

In other words, the valve body is made to move by the excitation or demagnetization action of a magnet body containing a permanent magnet, and only magnetic force is exchanged between the valve pressing part and the operating part.

Since the present invention is configured as described above, the valve function part can be completely sealed, and not only a fluid source and a power source but also piping, wiring, control equipment, etc. are unnecessary.

Therefore, not only is there no need to worry about internal fluid leakage, but the structure can be extremely simplified, and it is possible to provide a device that operates reliably and is relatively inexpensive.

Furthermore, according to the present invention, the valve body can be held at an intermediate opening position by using a magnet body using a permanent magnet.
It is possible to control not only the flow of fluid but also the flow rate.

However, according to the present invention, when the valve is opened, the valve body is pushed open by fluid pressure, so a return spring is not required.

Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a longitudinal sectional view showing a fully open state of a magnetic on-off valve according to an embodiment of the present invention.

FIG. 2 is a similar view showing the fully open state.

The magnetic on-off valve 1 includes a magnet body 2, a magnetic plate 3, a link mechanism 4, a valve box 6. Its main part is composed of the valve body 7.

The magnet body 2 includes a block-shaped casing 11 in which a non-magnetic material 8 is interposed in the center and magnetic materials 9, 9 are divided into two on both left and right sides, and a space 10 with a circular cross section is formed inside. The permanent magnet 12 has a rotatably fitted permanent magnet 12, and the permanent magnet 12 has a cross-sectional shape with both sides cut out as shown in the figure.

Although not shown, the permanent magnet 12 is connected to a bundle, a lever, a dial, etc., so that it can be rotated from the outside of the casing 11.

A flange 13 used when attaching to the valve box 6 is fixed to the lower part of the casing 11 by welding or the like.

The valve box 6 has an I-shaped cross section, and has an inlet 14 and an outlet 15 in the horizontal direction in its lower part, and a through hole 1 that communicates them.
6 and 17 are bored, and tapered female screws 18 and 19 for connecting pipes (not shown) are cut in the person exits 14 and 15.

An upwardly facing valve seat 5 is formed in the middle of the through hole 16, 17. The valve seat 5 is housed in the neck 20 of the valve case 6, and the valve body 7, which is slidable vertically by its guide part 21, is formed in the middle of the through hole 16, 17. The female part 22 is designed to be seated or unseated.

A link mechanism 4 for reciprocally moving the magnetic plate 3 made of iron or other material and the valve body 7 is provided in the enlarged portion 24 of the valve box 6 having the flange 23 at the top.

That is, in the enlarged portion 24, brackets 27 and 28, each having horizontal long holes 25 and 26, are protruded from the left and right inner walls thereof, and brackets 27 and 28 are provided at the bottom of the magnetic plate 3 and the top of the valve body 1. Bracket portions 29 and 30 are formed respectively.

Thus, the bracket part 29 of the magnetic plate 3 has a link 31.
One end of each of the links 32 and 32 is a pin 33, and one end of each of the links 34 and 35 of the same length is pivotally connected to the bracket part 30 of the valve body 7 with a pin 36. The end is connected by a pin 37 loosely fitted into the elongated hole 25 of the bracket 27, and the other ends of the links 32 and 25 on the right side are respectively connected by a pin 38 loosely fitted into the elongated hole 26 of the bracket 28. , 32, 34, and 35 have a diamond shape.

Therefore, when the magnetic plate 3 is raised by the link mechanism 4, the valve body 7 is lowered, and when the link mechanism 4 is operated in the opposite direction, it is advanced.

In the figure, 39 is a flange packing that is interposed between the flange 13 and the flange portion 23 when the magnet body 2 and the valve box 6 are assembled, and 40 is a fastening bolt.

Next, I will explain the effect.

FIG. 1 shows a fully closed state of the magnetic on-off valve 1, and FIG. 2 shows a fully open state.

To fully close, use a bundle, lever, etc. (not shown)
is placed in a fully closed position (appropriately determined and placed), and the permanent magnet 12 is made horizontal in its longitudinal direction as shown in FIG.

Then, the lines of magnetic force of the permanent magnet 12 will be cut within the magnet body 12 by the non-magnetic body 8 and leak to the outside, and the so-called magnet body 2 will be in an excited state, which will attract the magnetic body 3 in the vicinity. do.

Therefore, the valve body I is moved downward by the action of the link mechanism 4 consisting of links 31, 32, 34, 35, etc., and its female part 22
is placed on the valve seat 5, and fluid flowing in from the inlet 14 is blocked.

On the other hand, in order to fully open the bundle, etc., turn it around 90 degrees and make the permanent magnet 12 vertical as shown in Figure 2.The lines of magnetic force will loop inside the left and right magnetic materials 9. Since this does not leak and the magnet body 2 exhibits a demagnetized state, the magnetic plate 3 is not attracted.

Therefore, the valve body I is pushed up by the inflowing fluid and the through hole 16.1
7 are communicated with each other.

Of course, in the process of rotating the permanent magnet 12 from the horizontal position shown in FIG. 1 to the vertical position shown in FIG. It is possible to control not only the flow of fluid but also its flow rate.

In addition, the magnet body 2, magnetic body 3, link mechanism 4, valve box 6
, the structure of each valve body 7 is not limited to the previous embodiment, and can be appropriately modified in design.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing a fully open state of a magnetic on-off valve according to an embodiment of the present invention. FIG. 2 is a similar view showing the fully open state. 1...Magnetic on/off valve, 2...Magnetic body, 3...Magnetic plate, 4...Link mechanism, 6...Valve box , 7... Valve body.

Claims (1)

[Claims] 1. A magnet body with a built-in permanent magnet that can be turned into an excited magnetic state by moving the magnet, and a magnet body that is attached to the magnet body so that the inside thereof is sealed, and that is located in the middle of the exit and the through hole that communicates these. a valve box having a valve seat; a magnetic plate provided in the valve box and attracted to the magnetic plate when the magnet body is in an energized state; and a valve body provided in the valve box and capable of seating on the valve seat. A magnet characterized by comprising a link mechanism that is interposed between a magnetic plate and a valve body and moves the magnetic plate and the valve body reciprocally so that the valve body rests on the valve seat when the magnet body is in an energized state. Open/close valve.