JPS5819910B2 - onsuikongosen - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot water mixing faucet that mixes hot water and water and adjusts the temperature to an appropriate temperature.

When trying to adjust both flow rate and temperature with conventional hot water mixer faucets, it was difficult to adjust as desired, and there was a lot of waste due to running water when adjusting.

The present invention provides a hot water mixing faucet that is easy to adjust and eliminates waste by having a structure that controls flow rate and temperature completely independently.To clarify the purpose and configuration of the present invention, First, the conventional configuration will be explained.

A conventional hot water mixing faucet is as shown in FIG. 5, and has a main body 7 rotatably held in the center by a spool.

The spool 8 has a notch as shown in the figure, and forms orifices 23, 23' with the main body.

13 is a discharge port, and 3, 3' are valve ports formed inside the main body, which are further always in communication with a fluid source (not shown) and have pressure therein.

・5, 5' are secondary ports, 4.4' are valves, 18, 1
B' is a bundle.

Reference numeral 16 denotes a threaded portion that screws together the bundles ia, ia' and the main body 7.

4, 4' are pressed downward by bundles 1B, 18', and valve ports 3, 3' and secondary ports 5, 5
′ is blocked.

Next, the effect of this will be explained.

Rotate the bundles 1B and 1B' to tighten the threaded part 16.
When the valves 4 and 4' move upward due to the zero action, the valves 4 and 4' rise together with the bundle due to the pressure of the valve ports 3 and 3', and the ports 3 and 3' communicate with the secondary ports 5 and 5', respectively.

Next, the spool 8 is rotated to adjust the opening degrees of the orifices 23° and 23' to make the mixing ratio appropriate, and mixed water at an appropriate temperature is obtained from the discharge port 13.

As described above, the conventional structure consists of two opening/closing sections and a central mixing ratio adjusting section.

With the conventional structure, if you only want to increase or decrease the flow rate without changing the temperature of the mixed water, you must adjust the valves 4 and 4' by manipulating the bundles 18 and 18'. If we only want to increase or decrease bundle 1a,i
s' at the same time, and the amount of manipulation is already done by manipulating the bundles 18 and 18' at a ratio that matches the ratio of the opening areas of the orifices 23 and 23' when the temperature has been adjusted to an appropriate temperature (if necessary, Otherwise, the mixing ratio will change and the mixed water temperature will change.

However, this operation is very difficult and in most cases the temperature of the mixed water changes.

Therefore, the mixing water temperature must be readjusted by operating the spool 8 again.

For this reason, even if you try to reduce the flow rate to save water, not only will mixed water be wasted to adjust the temperature each time you use it, but the bundle 1 B, 1 will always be mixed.
It was a hassle to have to operate three 8' spools.

Further, due to the structure, the adjustment range of the spool 8 is limited to at most 1/3 rotation in terms of rotation angle, so it has the drawback that fine temperature adjustment is difficult.

As humans, we feel a sudden sensation of heat from around 4.2 degrees Celsius or higher, and there is also the risk of getting burned if we over-operate, so it is required to be able to finely adjust the temperature.

The purpose of the present invention is to provide a mixing faucet that eliminates these drawbacks, and to describe the structure and effects of the present invention as a means thereof, it is a mechanism that simultaneously opens and closes fluids from a high-temperature water source and a cold and hot water source. Furthermore, an adjustment mechanism is provided that can independently operate the flow rate adjustment and temperature adjustment, and the spool 8 provided within the main body plays an important role in these two mechanisms, as will be detailed in the examples. What is its role?
The two fluid sources are simultaneously opened and closed when the rotation angle of the spool 80 is between the first rotational position and the second rotational position,
Furthermore, the discharge flow rate is adjusted between the second rotational position and the third rotational position, and by moving the spool 8 in the axial direction, only the mixing ratio of hot water and cold water is changed, that is, only temperature adjustment is performed. - The above-mentioned rotational position operation and the above-mentioned axial movement operation of the spool 8 are constructed so that they can be operated independently from the outside.

In particular, the axial movement of the spool 8 is operated using the forward and backward movement of the screw, so the operation is smooth and the operating range is wide (therefore, the temperature can be finely adjusted).

In addition, this temperature adjustment only needs to be set once, and as long as the temperature and pressure of the fluid source do not change, a constant amount of mixed water will always be obtained. No matter how or how many times the adjustment is made, it has an excellent functional effect in that it does not affect the mixed water temperature at all.

A more detailed explanation of the above points will be given by way of examples with reference to FIGS. 1 to 4.

First, the structure will be explained with reference to FIG.

Portions in the right half of FIG. 1 that are symmetrical to the left half are indicated by the same number with a dash.

- 1 is connected to a liquid supply source (not shown) through a connecting pipe.

2 is the inside of the connecting pipe 1 and communicates with the hot water valve port 3.

The hot water valve port 3 is isolated from the hot water secondary port 5 by a pole 4.

The rod 6 is held by a portion of the main body 7 so as to be freely slidable.

Exactly the same structure, symmetrically connecting pipe 1', internal 2', cold water valve port 3', pole 4', cold water secondary port 5',
There is Londro'.

Hot water and cold water are respectively supplied to the interior 1 and the interior 1' from a supply source (not shown).

Reference numeral 8 denotes a mixing spool, which is held in the main body 7 so as to be rotatable about the central axis in the longitudinal direction and slidable from side to side.

A cam 9 and a cam 9' are formed on the mixing spool 8, and one ends of the rod 6 and the cam 9' are in contact with each other as shown in the figure.

The mixing spool 8 is further formed with a land port 10, a land port 10', an adjustment port 11, an adjustment port 11', and a partition groove 12.

The fluid in the adjustment port 11 is connected to the adjustment port 11' in the partition groove.
or conversely from adjustment port 11' to adjustment port 1.
This is to prevent it from flowing to 1.

The hot water secondary port 5 communicates with a land port 10, and the land port 10 communicates with an adjustment port 11.

Similarly, the cold water secondary port 5', the land port 10', and the adjustment port 11' are communicated in this order.

Reference numeral 13 denotes a discharge port, which mixes hot water and cold water and discharges the mixed water to a spout (not shown).

Although the adjustment port 11 and the discharge port 130 are normally closed, they communicate with each other when the mixing spool 8 circulates, and an orifice 23 opens between the two.

Similarly, an orifice 23' is opened between the adjustment port 11' and the discharge port 130.

14 is an O ring, and 15 is a temperature control bundle.

Reference numeral 16 denotes a threaded portion that converts the rotation of the temperature control bundle 15 into a stroke in the left and right directions, thereby moving the mixing spool 8 left and right.

17 is a gasket, 18 is a flow rate adjustment bundle, and 19 is an O ring.

Reference numeral 20 denotes a slit joint, which rotates the mixing spool 8 with the rotation of the flow rate adjustment bundle 18, but has a structure that allows the mixing spool 8 to move freely in the left and right direction.

A communication pipe 22 communicates the cold water secondary port 5' with the room 21.

Next, the operation will be explained.

FIG. 1 shows the valve in a closed position from an operational point of view.

Hot water is supplied to the hot water valve port 3 by a supply source (not shown), and cold water is supplied to the cold water valve port 3', but normally they are separated by balls 4 and 4' as shown in the figure, and hot water 2 and 2 are respectively separated. It does not reach the next port 5, the cold water secondary port.

Since the balls 4 and 4' perform self-sealing due to the pressure of the respective fluids, reliable seating can be achieved even when the fluid pressure is high.

When the flow rate adjustment bundle 18 is rotated from this state, the mixing spool 8 is rotated through the slit joint 20.

Due to this rotation, the rod 6.6' moves upward under the action of the cams 9, 9', pushing up the balls 4, 4' and connecting them between the hot water valve port 3 and the hot water secondary port 50, and between the cold water valve port 3 and the hot water 2. The next ports 5/ are in communication with each other, and the hot water and cold water reach the regulating ports 1-11 and 11', respectively.

The cold water also passes through the communication pipe 22 into the room 21 and pushes the mixing spool 8 to the left, which is pressed against the temperature regulating bundle 15 .

Further rotation of the flow rate adjustment bundle 18 causes the hot water secondary port 11 and the cold water secondary port 11' to communicate with the delivery port 13.

That is, the orifices 23, 23' are opened.

After this, the orifices 23, 23' increase in accordance with the amount of rotation of the mixing spool 8, and thus the flow rate is adjusted.

Therefore, the flow rate can be adjusted simply by rotating the flow rate adjustment bundle 18' to the desired position.

In such a state, if the mixing spool 8 is moved to the right by rotating the temperature adjustment handle 15, the orifice 23 will increase and the orifice 23' will decrease, changing the mixing ratio of hot water and cold water and causing the mixing. If the mixing spool 8 is moved to the left while the temperature of the hot water increases, the temperature of the mixed hot water will decrease based on the same principle.

Next, a more detailed explanation will be given with reference to FIGS. 2, 3, and 4.

FIG. 2 is a sectional view of the cam 9, rod 6, and ball 4.

Of these, A is in the same state as in Figure 1, that is, the valve is closed.B is when the mixing spool 8 rotates and the cam 9 causes the rod 6 to push the ball 4 upward, and the hot water valve port and hot water secondary port There is ample space between them.

C is a state in which the mixing spool 8 is rotated to the maximum.

The cam 9', rod C, and ball 4 are also in the same state at the same time.

FIG. 3 is a cross-section of the adjustment port 11 of the mixing spool 8.

A, B, and C are operating states corresponding to A, B, and C in FIG. 2, respectively.

A is a state in which the adjustment port 11 and the discharge port 13 are disconnected, that is, the orifice 23 is closed.

B is a state in which the orifice 23 has begun to open, and C is a state in which it is fully opened.

The fluid flow rate is adjusted between B and C in this figure.

Since the orifice 23' is also in exactly the same state as shown in this figure, the ratio of cold water to hot water remains constant without changing.

Therefore, only the flow rate can be adjusted without changing the temperature.

FIG. 4 is a view of the discharge port 13 viewed from the direction of the arrow in FIG.

As an example, the rotational position of the mixing spool is B in Figure 3.
and C.

Of the three states a, b, and c in Fig. 4, a is the mixing spool 8.
is at the center, and orifice 23 and orifice 23' are opened by the same amount.

b is when the mixing spool 8 moves to the right and the orifice 2
3 increases, and conversely the orifice 23' decreases.

C is the opposite of b.

In this case, as shown in the figure, if the contours of the adjustment ports (11, 11') are rectangular and the orifices (23, 23', Q) are made rectangular, then when the mixing spool 8 moves and the orifice (9'f) increases, the orifice 23 will become completely The same amount of orifice 23'
decreases, so the sum of the areas of the orifices 23 and 23' does not change.

Therefore, only the mixing ratio can be changed without changing the flow rate flowing through the discharge port 13.

As explained above, the present invention uses the flow control handle 18 to open and close the valve and adjust the flow rate, and the temperature control handle 15 to adjust only the temperature, so once the temperature is adjusted, the flow rate can be adjusted thereafter. By operating only the handle 18, the required amount of mixed hot water at a constant temperature can be produced easily and without waste at any time.

[Brief explanation of drawings]

FIG. 1 is a sectional view for explaining the structure and principle of the present invention. FIG. 2 is a partial sectional view showing the operating state. FIG. 3 is also a partial sectional view showing the mode of operation. FIG. 4 is a partial illustration of the operating principle. FIG. 5 is a sectional view for explaining the structure and principle of a conventional hot water mixing faucet.

Claims (1)

[Scope of Claims] 1. In a mixing faucet that adjusts and mixes fluids from high-temperature and low-temperature fluid sources in an appropriate ratio and discharges the mixture to the outside. A spool 8 fitted into a cylinder with both ends open inside the main body I so as to be movable in the axial direction and rotatable around the axis, a pair of cams 9°9' formed on the outer periphery of the spool, and a cam 9 cut on the outer periphery of the spool. A pair of adjustment ports 11, 11' formed in a cutout shape, a pair of rods 6. whose one ends are in contact with the cam 9.9' and whose outer periphery is held by the main body so as to be vertically slidable.
6', a pair of valves 4, 4' located opposite to the other end of the rod 6°6', a discharge port 13 formed in the main body, and a spool 8 in contact with one end of the spool 8 near the opening of the cylinder. The relationship between the temperature control bundle 15 and the spool 8 related to the main body is that of the screw joint 6 which is configured to move forward and backward in the axial direction, and the relationship between the temperature control bundle 15 and the spool 8 is relatively movable in the spool axial direction, and rotation is restrained integrally. The shape of the cams 9, 9' is such that the rod 6.6' changes from the minimum stroke to the maximum stroke when the rotation angle of the spool is from the first position to the second position. and is formed in a shape having a contour that maintains the maximum stroke from the second position to the third position,
The relationship between the discharge port 13 and the adjustment ports N, 1, 11' is such that they are not communicated with each other while the spool rotation angle is from the first position to the second position, and when the adjustment port 1 is in the second position,
1 and 11' respectively start communicating with the discharge port 13 to form two orifices 23 and 23', and as the spool rotation angle further approaches the third position (as the orifices 23, 23'
The relationship is such that the opening area of 23' gradually increases,
The discharge port 13 and the adjustment port 11°11 are arranged so that the opening area of one of the two orifices 23, 23' increases and the other decreases as the spool 8 moves in the axial direction.
A hot water mixer faucet characterized in that the positions of ′ are related to each other.