JPH0342290Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a device for switching the flow rate of fluid flowing in a flow path.

<Conventional technology> Conventionally, mechanisms for discharging water in flush toilets, etc., which repeatedly flush a fixed amount of water, either supply water directly from a water pipe and discharge water, or discharge water stored in a tank. It was hot.

<Problems to be solved by the invention> However, conventional tank-type devices have separate water spouts for large and small uses, and the user has to adjust the flow rate of water as needed. However, with systems that supply water directly from water pipes, the flow rate cannot be adjusted, and the amount of water discharged is adjusted to suit the needs. Therefore, a large amount of water flows even for small errands, so there is a disadvantage that water is wasted, and this is especially noticeable in women's toilets where a toilet bowl is used even for small errands. Ta.

Another problem was that if the toilets were to be converted to tank-type toilets or the water discharge valves were improved in order to eliminate these wastes, it would require a great deal of labor and expense.

<Means for Solving the Problems> The present invention for solving the above-mentioned problems consists of a water conduit 3 fixed in the flow path 1 and provided with a water passage hole 3a on its circumferential surface; A water ring 5 is attached to the downstream side of the hole 3a and has water outlets 5a and 5b on the inside and outside of the water conduit 3, respectively, and a water ring 5 is slidably attached to the outside of the water conduit 3 to open and close the water passage hole 3a. It is characterized in that it consists of a valve 7 that performs the following actions, and a movement device 9 that is attached to the outside of the flow path 1 and controls the movement of the valve 7.

<Operation> When the valve 7 closes the water passage hole 3a, a small amount of fluid flowing in the flow path 1 is guided into the water conduit 3 and flows out from the water outlet 5a communicating with the inside of the water conduit 3. . Further, when the valve 7 is moved by the moving device 9 and the water passage hole 3a is not blocked, a large amount of fluid flows into the water pipe 3 from the water outlet 5b through the water outlet 5a and the water passage hole 3a. leak.

In this way, the position of the valve 7 is adjusted by operating the moving device 9, and the flow rate of the fluid is switched.

<Embodiment> The illustrated embodiment is for attaching to the discharge pipe of a flush toilet which supplies water directly from a water pipe, as shown in FIG.

The water guide pipe 3 having a diameter sufficiently smaller than the diameter of the flow path 1 is fixed within the flow path 1 via a fixing member 5 attached to the rear end. A plurality of water passage holes 3a are formed on the same circumference in the circumferential surface near the tip of the water conduit 3, so that the outside and the inside of the water conduit 3 are communicated with each other.

Further, at the tip of the water conduit 3, a disc-shaped water passage ring 5 is formed on the same axis, and its diameter is the same as the inner diameter of the flow path 1. The water ring 5 is provided with a plurality of water outlets 5a and 5b that communicate with the downstream side, with a plurality of water outlets 5a and 5b provided inside the water pipe 3 and a plurality of water outlets 5b provided on the outside of the water pipe 3, respectively.

All water flowing in from upstream passes through the water outlets 5a and 5b.

A cylindrical valve 7 that slides between the fixing member 4 and the water passage ring 5 is fitted onto the circumferential surface of the water conduit 3 .

The valve 7 moves up and down on the circumferential surface of the water conduit 3, and closes the water passage hole 3a and the water outlet 5b at the lowest point.

Further, the valve 7 is made of a magnetic material, and is controlled to rise and fall by a magnetic force generated by a moving device 9, which will be described later.

The moving device 9 is attached to the outside of the flow path 1 at a position corresponding to the upper end portion of the water conduit 3, and a coil 11 for generating magnetic force is housed inside. A fixing ring 15 fixed by fixing bolts 13 is attached to the lower side of the moving device 9, and positions the moving device 9. coil 1
The energization in step 1 is manually turned on and off using a switch installed at a predetermined position externally. That is, when the switch is turned ON, the coil 11 is energized and a magnetic force is generated, so that the valve 7 rises, the water passage hole 3a and the water outlet 5b are opened, and a large amount of water flows.
When turned off, the magnetic force of the coil 11 disappears, the valve 7 descends under its own weight, the water passage hole 3a and the water outlet 5b are closed, and a small amount of water flows from the water outlet 5a.

When the device of this embodiment configured as described above is installed on a ready-made water discharge pipe of a flush toilet, as shown in FIG. 4 is inserted into the flow path 1 from above to fix the fixing member 4 inside the flow path 1, and the moving device 9 can also be easily fitted and attached from the outside.

The fluid flow rate switching device 2 of this embodiment installed in this manner is completed in the state shown in FIG. 3.

The device of this embodiment electrically controls the raising and lowering of the valve 7 by the coil 11, so when the switch is turned on or
Flow rate can be easily changed by turning OFF.
Another advantage is that it can be automated by combining it with other control mechanisms.

In yet another embodiment, the water passage hole 3a is shaped like a slit in the axial direction, and by adjusting the amount of rise of the valve 7, the flow rate of a large amount of water when the valve 7 rises is also adjusted. becomes possible.

In addition, it is also possible to use a permanent magnet instead of the electromagnet using the coil 11 of the moving device 9, and to have a structure in which the valve 7 is raised and lowered by raising and lowering this magnet. In addition, the material of the valve 7 is a magnet, and the coil 11
By changing the direction of energization, the direction of magnetic force can be changed to forcibly move the valve 7. In this case, the valve 7 can also be installed in a horizontal flow path.

<Effects of the invention> The present invention constructed as described above can easily switch between a small flow rate and a large flow rate, and can adjust the flow rate according to the user's purpose, thereby preventing wasteful use of fluid. effective.

Another advantage is that it can be installed inexpensively and easily without modifying existing equipment.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of one embodiment of the present invention;
The figure is an exploded perspective view, and FIG. 3 is a side view showing the installed state. 1: Channel, 3: Water pipe, 3a: Water hole, 5: Water ring, 5a, b: Water outlet, 7: Valve, 9: Moving device.

Claims (1)

[Scope of utility model registration request] A water pipe fixed in the flow path 1 and provided with a water passage hole 3a on the circumferential surface, and a water outlet 5 on the inside and outside of the water pipe 3 installed on the downstream side of the water passage hole 3a, respectively.
a, 5b, a valve 7 that is slidably attached to the outside of the water conduit 3 and opens and closes the water hole 3a, and a valve 7 that is attached to the outside of the flow path 1.
A fluid flow rate switching device comprising a moving device 9 that controls the movement of the fluid flow rate switching device.