JPS6340703Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a metering faucet that allows a desired amount of water to be set in advance by rotating an operation dial and automatically shuts off the water when that amount of water is released.

The metering stop valve used by attaching to an existing faucet is disclosed in Japanese Patent Application Laid-open No. 56-86276 or Japanese Utility Model Publication No. 53-
Already known from publication No. 84135.

The present applicant is currently developing a product in which a hot water/cold water mixing faucet is equipped with such a metering water stop function.

The hot water mixing faucet is used to supply water to bathtubs, washing machines, etc., and automatically shuts off when a certain amount of hot water is discharged, which is set in advance with the operation dial. If you rotate the operation dial according to the water, you can prevent unnecessary water spouting, which is useful for saving water.

However, conventional metering stop valves only have a water volume setting scale displayed on the operation dial to indicate the amount of water to be spouted, so it is difficult for first-time users to judge how far the operation dial should be rotated. It has the disadvantage that it is difficult to provide guidance, especially for children and people with low vision, even if there is an appropriate display on the operation dial.

Additionally, since hot water is often wasted in public places such as hotels, the above-mentioned hot water mixer faucet with an automatic shut-off function has a large water-saving effect when used to supply hot water to a hotel bathtub, for example. The economic benefits are considered to be high. However, in hotels, etc., customers who use the bathtub usually do not know the optimal amount of water to supply for the bathtub, so they have no idea how much the control dial should be set to fill the bathtub with just the right amount of hot water. For this reason, users may turn the control dial to the maximum setting and leave it unattended, which may cause hot water to overflow or cause unnecessary use of hot water. There was a possibility that it would not happen.

On the other hand, to solve this problem, it is possible to incorporate the cam and stopper in the metering stop valve from the beginning of manufacture according to the size of the bathtub, etc., but since bathtubs vary in size, A very large number of types of products must be prepared, making product management and product manufacturing complicated. In that case, of course, the consumer can simply replace the cam etc. with one that matches the size of the bathtub, but in order to do so, the interior of the conventional structure had to be disassembled. In addition, replacing moving parts such as cams requires the use of special machines and tools, which is not easy for amateurs.Furthermore, there are problems with disassembly procedures and parts arrangement during reassembly. This would lead to further troubles such as the ease with which the parts could be replaced, so a product whose moving parts would have to be replaced on-site would be completely unsuitable as a commercially available product.

Therefore, the present invention solves the above drawback by allowing users to easily and without trouble limit the maximum set water volume of the metering stop valve as appropriate, making water conservation even more effective when used in hotel bathtubs, etc. The purpose is to make it more accurate.

In order to achieve this purpose, the metering stop valve of the present invention has an operation dial fixed to a water volume setting shaft that protrudes from the tap body, and the desired amount of water is released by rotating the operation dial in a predetermined direction from the water stop position. is set, and when the set amount of water passes through the faucet body, the operation dial is returned to the water stop position and the valve body in the faucet body stops water discharge. An annular groove is formed around the water volume setting shaft that faces the dial, and stopper pins are provided in the annular groove to protrude from a part of the operation dial and a part of the stopper body, respectively, so that both ends of the stopper pins are in contact with each other. The present invention is characterized in that an arc-shaped support member is removably disposed in the annular groove so as to stop the rotation of the operating dial, and the rotation range of the operation dial is appropriately limited by the length of the support member.

An embodiment of the present invention will be described below with reference to the drawings.

A horizontally long hollow tap body 1 shown in the figure has a hot water supply pipe 2 and a water supply pipe 3, which are introduced from the wall of a bathroom, etc., connected to both ends of the back side, and 4 and 5 are connected to both ends of the front side of the tap body 1. This is a known configuration in which hot water supply and water supply can be adjusted by manually rotating the attached hot water supply handle and water supply handle to move the hot water supply valve 6 and the water supply valve 7 in the faucet body 1, respectively. A water volume setting shaft 8 is provided protruding from the upper surface of the central portion of the stopper body 1, and an operation dial 9 is fixed to this. 1
0 is the water discharge pipe attached to the front of the central part, and 11 is the stopper body 1 as a guide for the amount of rotation of the operation dial 9.
It is a red marking point attached to the center of the front. In this embodiment, the operation dial 9 is constructed by fitting an outer cylinder 12' made of transparent plastic onto the outside of an inner cylinder 12 made of opaque plastic. , "50, 100, 150, 200," which represents the amount of water discharged (unit: liter)
250, 300" and a scale, and a display tape 13 displaying the words "Continuous Water Injection" is wound around the display tape 13. Then, a stopper pin 1 is attached to the lower edge of the inner cylindrical body 12.
4 is provided protrudingly. 15 is this operation dial 9
In order to attach the water quantity setting shaft 8 to the water quantity setting shaft 8, a nut is fitted into the screw portion 16 at the upper end of the water quantity setting shaft 8. Reference numeral 17 is a fitting cap for hiding the nut. The detailed structure of the metering water stop mechanism is already known from the above-mentioned Japanese Patent Application Laid-Open No. 56-86276 and others, so its explanation will be omitted, but in short, when the operation dial 9 is turned to "stop" From the water stop position to each scale direction of "50 to 300" (arrow direction in Figures 1 and 3)
When the rotation operation is performed, the cam provided in the meter section 18 rotates and the drive rod 19 moves downward, and the spherical valve body 20 is separated from the valve port 21 at the lower end of the drive rod 19. As the mixed hot water flows from the valve port 21 in the direction of the water discharge pipe 10, the impeller 22 hanging down from the meter section 18 is rotated by the flowing hot water, and the rotation is caused by a gear reduction mechanism in the meter section 18. The cam and the operation dial 9 are returned at a very slow speed by being decelerated by the valve, so that when the set amount of water passes, the driving rod 19 moves upward and the valve body 20 is attracted to the valve port 21 by water pressure, so that the water is stopped. It is. Further, when the operation dial 9 is rotated in the opposite direction to align the marking point 11 with the "continuous water injection" position, the drive rod 19 is moved downward by the action of the cam, opening the valve port 21, and at the same time, the control rod (not shown) is moved by the operation of the cam to prevent the impeller 22 from rotating, so that a so-called continuous water flow state occurs regardless of the amount of water passing through.

An annular groove 23 is formed around the water volume setting shaft 8 on the upper surface of the stopper body 1 facing the operation dial 9, and a stopper pin 24 is protruded into the annular groove.
The stopper pin 24 and the stopper pin 14 are located in the same annular groove 23, and the operation dial 9
The stopper pins collide with each other at a point where the stopper pins are rotated and exceed the "300" position on the scale and the "continuous water injection" position to prevent further rotation. However, in the present invention, the arc-shaped intervening bodies 25a, 25 have an appropriate length.
b, 25b are removably disposed in the annular groove 23 and protrude from the operation dial 9.
4 and the stopper pin 24 fixed in this annular groove 23, there are intermediary bodies 25a, 25b, 25b.
The rotation range of the operation dial 9 is limited by the length of these intervening bodies. That is, the maximum set amount of water can be limited by providing an intervening body of an appropriate length. Here, the length of the intervening body is as shown in this embodiment, by preparing a long intervening body 25a and a short intervening body 25b,
If 25a is prepared in advance for the 100 liter limit and 25b is for the 20 liter limit, the desired water limit can be obtained by appropriately combining them.For example, as shown in Fig. 1, one 25a and 25b If two are placed, the maximum amount of water will be limited to 140 liters, so in this case 160 liters will be the maximum set water volume. Further, reference numeral 25c is a support member for preventing the operation handle 9 from rotating to the "continuous water injection" position, and in that case, it is disposed on the opposite side of the stopper pin 24 from the support members 25a and 25b.

The interlocking member shown in FIG. 4 is composed of a pair of arc-shaped interlocking members 26a and 26b, and the overlapping portion thereof has continuous projections and recesses that engage with each other, and can be expanded and contracted by changing the interlocking position. By adjusting the amount of water, an intermediate can be obtained in which the amount of water can be restricted over a wide range.

Furthermore, the intermediary body shown in FIGS. 5 and 6 is
A cut groove 27 into which the stopper pin 24 can fit loosely is formed on one side, leaving a length L ₁ from one end, and a recessed groove 28 into which the stopper pin 24 can fit loosely on the other side.
is formed so that it is slightly inside from one end and leaves a length L ₂ from the other end, and when this intermediary body is arranged so that the stopper pin 24 is located in the concave groove 28, Since the intervening body can slide freely within the length range of the concave groove 28, the effective length that can limit the maximum set water amount is length L ₂ , and the stopper pin 24 is located outside the concave groove 28. In this case, the total length L ₃ becomes the effective length. Furthermore, when this intervening body is placed upside down, the stopper pin 24 fits loosely into the cut groove 27, so the effective length is _L1. Depending on the arrangement method, the rotation range of the operation dial 9 can be restricted in three ways.

In the above embodiment, the annular groove 23 was formed on the top surface of the plug body 1, but the annular groove 23 is shown in a partial cross section in FIG.
As shown in Fig. 3', a hanging wall 29 may be extended to the outer peripheral edge of the lower end of the operation dial 9' to provide a form in which an intervening body can be disposed.Furthermore, although not shown,
It is also possible to form an annular groove on the operation dial side or on the upper surface of the casing of the meter section 18 in the above embodiment. can be formed around. By forming the annular groove in the facing portion of the stopper body and the operation dial in this way, the intervening body in the annular groove cannot be touched from the outside unless the operation dial is removed from the water volume setting shaft. Unauthorized changes to settings due to mischief are prevented.

As explained above, the metering stop valve of the present invention is
By simply removing the operation dial from the water volume setting shaft, you can easily replace the intervening body in the annular groove, thereby limiting the maximum set water volume that suits the purpose of this metering stop valve. Even if it is not necessary, the user can easily adjust it. Therefore, the maximum set water volume can be easily limited at any time to suit the size of the installed bathtub, etc., which eliminates wasteful water supply such as bath water and washing water, and has a great effect on water conservation.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional plan view showing one embodiment of the metering stop valve according to the present invention, Fig. 2 is a sectional view taken along the line X-X, and Fig. 3 is an exploded perspective view of the metering stop valve. be. FIG. 4 is a perspective view showing another embodiment of the support body, FIG. 5 is a perspective view showing still another embodiment of the support body, FIG. 6 is a longitudinal sectional view of FIG. 5, and FIG. FIG. 3 is a vertical cross-sectional view showing another embodiment of the annular groove portion. DESCRIPTION OF SYMBOLS 1... Tap body, 8... Water volume setting axis, 9... Operation dial, 10... Water discharge pipe, 14... Stopper pin, 18... Meter section, 20... Valve body, 22...
Impeller, 23... Annular groove, 24... Stopper pin, 25a, 25b... Intermediate body.

Claims (1)

[Scope of utility model registration request] An operation dial is removably fixed to a water volume setting shaft that protrudes from the faucet body, and the desired water volume is set by rotating the operation dial in a predetermined direction from the water stop position, and the set water volume is adjusted inside the faucet body. In a metering stop valve configured such that when the valve body passes through the water stop valve, the operation dial is returned to the water stop position and the valve body in the stopper body stops water discharge, the area around the water volume setting axis where the stopper body and the operation dial face each other. An annular groove is formed in the annular groove, stopper pins are respectively protruded into the annular groove from a part of the operation dial and a part of the stopper body, and an arc-shaped support body is inserted into the annular groove so that both ends of the stopper pins are abutted. 1. A metering stopcock, characterized in that the rotation range of an operation dial is appropriately limited by the length of the intervening body, and the operating dial is detachably disposed inside the stopcock.