JPH0242974B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a water faucet that is attached to the tip of a water supply pipe and used for washing dishes and the like.

[Background technology]

An example of this type is shown in FIG. This is case 1 that is fixed to the tip of the water supply pipe 12.
A ball 61 is disposed inside the valve seat 62 to stop water by water pressure, and a shaft 65 is moved to the left in the figure against a spring 66 by a cam 64 rotating together with a lever 63. By moving the ball 61 to the side, the water channel is opened and water flows out. When the lever 63 is returned, the shaft 65 is also returned to its original state by the spring bias, and the ball 61 allows the water to flow out again. It is something to stop. In addition, 67 in the figure is a gasket that comes into pressure contact with the edge of the opening at the tip of the water supply pipe 12. Such a faucet does not require twisting the cap, and since the opening and closing operations can be performed at the tip of the water supply pipe 12, there is no need to operate the cap with wet or detergent foam-covered hands. This has the advantage that water will not get wet directly under the operating section of the cage, or that water will not get around to the part where the cage is attached to the wall.
On the other hand, although it is not a water faucet, there is a device that is also used by being fixed to the tip of the water supply pipe 12 and can be switched between direct water discharge and water spray (shower). As shown in FIG. 2, a cylinder 72 is screwed into the center of the bottom of the case 1, where many small holes 71 for watering are provided. The hole 75 provided in the middle plate 76 can be closed by the flange 73 at the upper end of the cylinder 72, and the cylinder 72 can be rotated by operating the lever 74 to move the cylinder 72 upward. If the hole 75 is opened as shown, water will flow out from the small watering hole 71 through the hole 75, and if the tube 72 is lowered and the hole 75 is closed, water will flow out through the inside of the tube 72. It is.

By the way, it would be extremely convenient to combine a device that opens and closes as shown in Figure 1 with a device that can switch between water sprinkling and direct water discharge as shown in Figure 2. Nothing like this is yet available. Moreover, if both shown in Fig. 1 and Fig. 2 are combined into one case,
Although it is possible to open/close and switch between water sprinkling and direct water discharging, this requires two operating sections, one for opening/closing and one for switching, making the operation complicated. Furthermore, even if the operation means could be combined into one, if the opening/closing structure and switching structure are as shown in Figures 1 and 2, the switching structure would have to be located at the bottom of the opening/closing structure. However, the overall height becomes considerably large. This is undesirable because the space below the water supply pipe for washing dishes and the like becomes smaller. Furthermore, in practice, it is difficult to combine the two operating means into one.

[Purpose of the invention]

The present invention has been made in view of the above points,
Opening/closing and switching between direct water discharge and sprinkling, i.e.
Not only is it very convenient to be able to switch between water stops, direct water discharge, and water spray, but there is also a single operating means for these switches, which is highly operable, and it is also possible to switch between up and down. The purpose is to provide a faucet with short dimensions.

[Disclosure of the invention]

(Example) An example of the present invention will be described based on FIGS. 3 to 7.

In the figure, the case 1 of the faucet is made of synthetic resin and has a cylindrical shape, and includes an upper case 3 having a water supply pipe connection part 2 for fixing to a water supply pipe 12, and an opening 4 for direct water discharge in the center. and a lower case 6 having a large number of water sprinkling openings 5 around the lower case 6, and a threaded part 7 provided on the lower outer periphery of the upper case 3 and a threaded part 8 provided on the inner surface of the peripheral wall of the lower case 6.
It is constructed by screwing together. The water supply pipe connection part 2 includes a threaded part 9 provided on the outer periphery of the upper part of the upper case 3 and an inner peripheral wall 1 located on the inner periphery of the threaded part 9 and protruding in the axial direction by the threaded part 9.
0 and a gasket 11 disposed within the inner circumferential wall and pressed against the tip of the water supply pipe. The fixture 13 and the connector 14 are members for fixing the case 1 to the tip of the water supply pipe, and are previously engaged with the water supply pipe 12. That is, the fixture 13 is made of an elastic material and has a flange 13a at the lower part of the peripheral wall and a water supply pipe 12 at the lower part of the inner wall.
The fitting hole 13b has a slightly smaller diameter, and the thick wall part is provided with an annular groove 13c into which the inner circumferential wall 10 of the upper case 3 is fitted. It is provided with a threaded portion 14a that fits together. This connector 14 is connected to the flange 13 of the fixture 13.
It is rotatably attached to the outer periphery of the fixture 13 with the lower end hole edge being received by a, and when the connector 14 is passed through the water supply pipe 12 and the fixture 13 is also passed through the same, the fixture 13 can be elastically locked to the water supply pipe 12 with the connector 14 rotatably attached.

The upper case 3 constituting the case 1 has a horizontal hole 15 in its peripheral wall, and a rotary valve body support part for rotatably disposing the rotary valve body 16 in the case 1 with its axis perpendicular to the water flow direction. 17 to side hole 15
Formed by connecting to. A gasket 11 provided at one axial end of the case 1 is formed with an inflow passage 11a that communicates the water supply pipe 12 and an inflow hole 18, and a first outflow passage 19 is formed at the center of the other axial end of the case 1. At the same time, a second outflow path 46 is formed around it.
The first outflow passage 19 is connected to a first outflow hole 19a formed in the rotary valve body support part 17 and
A direct water discharge opening 4 communicating with the outflow hole 19a is provided, and the second outflow path 46 is formed in the rotary valve body support 17 and in the vicinity of the first outflow hole 19a. 20 and a water sprinkling opening 5 formed around the direct water discharge opening 4 and communicating with the second outflow hole. The inflow hole 18 has a tapered shape that widens on the water supply pipe 12 side, and from the lower end hole edge of the inflow path 11a of the packing 11, a thin protrusion 11b that extends along this tapered shape and whose tip hole edge touches the outer periphery of the rotary valve body 16 is formed. It is provided. In addition, a ball 21 and a coil spring 22 are attached to the lower part of the water supply pipe 12 away from the axis in parallel with the axis to securely position the rotary valve body 16 when changing its rotation and to provide an appropriate click feeling. A vertical hole 23 is provided on the inner peripheral surface of the rotary valve body support 17 on the opening side, and a valve stopper screw portion 23 is provided on the inner circumferential surface of the rotary valve body support 17 .
Bearing portions 24 are formed at the axial center of the rotary valve body 16 on the inner surface of the peripheral wall thereof.

The rotary valve body 16 has a length approximately equal to the diameter of the upper case 3, and has a shaft portion 2 at one end as shown in FIG.
4' is rotatably supported by the bearing part 24, the middle large diameter part 25 is rotatably supported by the rotary valve body support part 17, and the tip part of the small diameter part 26 at the other end is cut out to have a D-shaped cross section. Further, a circumferential groove 27 for a water leakage prevention sealing device is provided between the large diameter portion 25 and the small diameter portion 26. The outer periphery of the large-diameter portion 25 of the rotary valve body 16 is provided with a hole for positioning "water stop,""direct water discharge," and "water sprinkling" when switching the rotation of the rotary valve body 16.
Three recesses 28 into which the aforementioned balls 21 are fitted are provided at intervals of 45° center angle. The configuration of the parts of the rotary valve body 16 in the axial direction corresponding to the inflow hole 18, the first outflow path 19, and the outflow hole 20 determines the "water stop", "direct water discharge", and "water sprinkling" states. That is, in the "water cutoff" state, the outer periphery of the large diameter portion 25 closes the inflow hole 18 and forms a water cutoff portion 29 that closely contacts the hole edge of the thin protrusion 11b of the packing 11 to close the inflow hole 11b. Next, the water passage portion 30 that penetrates in the diameter direction of the large diameter portion 25 will be explained. A wide upper opening 31 that communicates with the inflow hole 18 in both the "direct water discharge" and "sprinkle" states, and the "direct water discharge" state. It has a narrow lower opening 32 that communicates with the first outflow path 19 in the "sprinkling" state and communicates with the outflow hole 20 in the "sprinkling" state, and is an irregularly shaped through hole. When the upper opening 31 is in a position communicating with the inflow hole 18, the hole edge of the thin protrusion 11b of the packing 11 is also located within the upper opening 31. Therefore, the water passage section 30 connects the water supply pipe 12 to the direct water discharge opening 4 or the water sprinkling opening 5.
The communication will be made selectively to either one of the two. After this rotary valve body 16 is fitted with a water leakage prevention seal 33 in its circumferential groove 27 and inserted into the rotary valve body support portion 17, a valve stop member 34 is screwed onto the valve stop threaded portion 23. Valve body 16
is arranged in the case 1 so as to be rotatable without falling off. Reference numeral 35 designates a lever for rotating the rotary valve body 16, which is fitted into the D-shaped cross section of the small diameter portion 26 of the rotary valve body 16 and then fixed with a screw 36. This turning lever 35 has a protrusion 37 protruding from an appropriate location corresponding to the mouth edge of the horizontal hole 15 of the upper case 3, and a stepped portion 38 is formed on the mouth edge of the horizontal hole 15, so that the protrusion 37 is attached to the stepped portion 38. Therefore, the rotation is restricted to a predetermined rotation range, that is, a switching range of "water stop" - "direct water discharge" - "water spray". 39 is a water flow diffusion plate having a cylindrical part 40 and a flange part 41 that is sufficiently larger than this diameter.
This cylindrical portion 40 is the first outflow path 1.
It is fitted into the outer periphery of 9. This flange portion 41 diffuses the water flowing out from the outflow hole 20 and distributes it evenly to the large number of water sprinkling openings 5. Further, the collar portion 41 has a holding portion 4 that receives the end of the coil spring 22 at a position corresponding to the vertical hole 23 of the upper case 3.
2 is provided. Direct water discharge opening 4 of lower case 6
has a cylindrical shape, and a rectifying groove 43 is provided on its inner circumference. Then, when the threaded part 8 of the lower case 6 is screwed into the threaded part 7 of the upper case 3, the upper lip of the direct water discharge opening 4 can arrange the water flow diffusion plate 39 at a predetermined position.
As a result, the holding portion 42 of the water flow diffusion plate 39 presses the coil spring 22, so that the ball 21 presses the large diameter portion 25 of the rotary valve body 16 with a predetermined elastic force. 44 is a strainer, 45 is a rectifier plate,
It is disposed within the first outflow path 19.

Thus, the faucet is fixed to the tip of the water supply pipe by threading the threaded part 9 of the water supply pipe connection part 2 into the threaded part 14a of the connector 14 that has been previously engaged with the water supply pipe 12. In this case, the turning lever 35
It is desirable to rotate the connector 14 while positioning the connector 14 at a position where it can be easily operated. In any case, the faucet is pulled up toward the water supply pipe 12 by the screwing of the connector 14 and the water supply pipe connection part 2, and the inner circumferential wall 10 is fitted into the annular groove 13c of the fixture 13, and the fitting 11 is pressed into contact with the tip of the water supply pipe 12, and as a result, reliable fixation can be achieved without causing water leakage.

(Operation) Next, the operation will be explained. Figs. 7a, b, and c show the states of "water stop,""direct water discharge," and "water sprinkling." These valves have different rotational positions of the rotary valve body 16, and can be set to a desired state by rotating the rotational lever 35. In the "water stop" state of a, the water stop part 29 of the rotary valve body 16 closes the inflow hole 18 and is in close contact with the hole edge of the thin protrusion 11b of the packing 11, so that the inflow path 11a is closed. become. Then, in the "direct water discharge" state b, in which the rotary valve body 16 is rotated 45 degrees counterclockwise, the upper opening 31 of the rotary valve body 16 communicates with the inflow hole 18, and the lower opening 32 communicates with the inflow hole 18. Since it communicates with the first outflow path 19, the water passage portion 30 communicates the inflow path 11a and the first outflow path 19. Further, in the "spraying" state c, in which the rotary valve body 16 is rotated 45 degrees counterclockwise, the rotary valve body 1
The upper opening 31 of 6 remains in communication with the inflow hole 18, while the lower opening 32 of 6 continues to communicate with the inflow hole 2.
0, the water passage portion 30 communicates the inflow path 11a and the second outflow path 46. Therefore, in the "water stop" state, water is not sprayed from either the direct water discharge opening 4 or the water sprinkling opening 5, and in the "direct water discharge" state, water is not sprayed from the direct water discharge opening 4. When the condition is met, water is sprayed from the water sprinkling openings 5, respectively. Further, the rotary valve body 16 is reliably positioned at each position by the balls 21 which are applied with a predetermined elastic force and fitted into the recesses 28, and moreover, a suitable click feeling is provided when the rotation is changed.

Note that FIGS. 8a and 8b show the second part of the rotary valve body 51.
In this embodiment, a narrow rib 53 is formed in the upper opening 52 to connect the opposing opening edges. This can reduce fatigue of the thin protruding portion 11b of the packing 11 due to water pressure in each of the "direct water discharge" and "water sprinkling" states. However, in this case, the amount of sliding between the thin protrusion 11b of the packing 11 and the narrow rib 53 increases, so the packing 1
It is desirable to select and adopt the material according to the characteristics of the material No. 1, that is, this material is suitable for improving fatigue resistance, and the material of the above-mentioned embodiments is suitable for improving wear resistance.

9a and 9b show a third embodiment of a rotary valve body 54, in which a partial large-diameter portion 55 is formed in which the radius of approximately half the circumference is increased around the lower opening 32 of the large-diameter portion 25. . This reduces the gap between the large diameter portion 55 and the rotary valve body support 17, so if the internal water pressure increases due to the strainer 44 or rectifying plate 45 in the "direct water discharge" state, , the second outflow hole 2 through the aforementioned gap.
It is effective in preventing water from leaking from 0.

In addition, the means for fixing the faucet to the water supply pipe 12 is not limited to the fixing device 13 and the coupling device 14 described in the embodiment, and the water supply pipe connection part 2 of the case 1 is directly attached to the tip of the water supply pipe. Of course, it may also be possible to attach it.

〔Effect of the invention〕

As described above, the faucet of the present invention includes a cylindrical case fixed to the tip of a water supply pipe, and a rotatable center of rotation within the case with the rotational axis perpendicular to the axial direction of the case. comprising a rotary valve body and an external operating means for rotating the rotary valve body, an inlet passage communicating with a water supply pipe is formed at one axial end of the case,
At the center of the other end in the axial direction, there is a first hole having an opening for direct water discharge.
a second outflow path having an outflow hole formed in the vicinity of the first outflow path and a water sprinkling opening formed around the direct water discharge opening and communicating with the outflow hole; A faucet formed around a first outflow path, wherein a first outflow path is provided in the second outflow path.
A water flow diffusion plate formed in a circular flat plate shape is provided protrudingly on the outer periphery of the outflow passage, and an edge of the water flow diffusion plate is positioned outward from the outflow hole, and the inflow passage is connected to the rotary valve body so that the inflow passage is connected to the first outflow hole. A water passage section that selectively communicates with one of the channel and the second outflow channel and a water stop section that closes the inflow channel are provided, and water is cut off and water is directly discharged depending on the rotational position of the external operating means. , water sprinkling can be switched to each state, so when washing dishes, etc., you can frequently stop the water, switch the water spray, and switch between direct water spray and water sprinkling with one operation means. There is no need to twist the canister each time water is poured, and these changes are made by rotating a single rotary valve body, and a second outflow path for water sprinkling is provided around the outer periphery of the first outflow path for direct water discharge. Because of this, the faucet can be made smaller and there is more space for washing dishes, etc., making it easy to use.Furthermore, an inlet is formed at one end in the axial direction of the case, and first and second outlet channels are formed at the other end. Because of this, the water flow is less likely to be bent inside the case in both direct water discharge and water sprinkling conditions, resulting in less flow path resistance and smooth flow.Moreover, the water flow diffusion plate prevents the second outflow. The stream of water in the channel is spread out and drained uniformly across the multiple watering openings.

In the second outflow path, a water flow diffusion plate formed in a circular flat plate shape is provided protruding from the outer periphery of the first outflow path,
Since the edge of this water flow diffusion plate is located outward from the outflow hole, when switching to water sprinkling using the operating means, the water flow from the outflow hole will always hit the water flow diffusion plate first, and then the water flow diffusion plate will The water flow circulates in the circumferential direction of the water flow diffusion plate, and is uniformly guided to the water sprinkling opening and flows out from the edges around the entire circumference of the water flow diffusion plate.

[Brief explanation of the drawing]

Figure 1 is an overall cross-sectional view of a conventional water faucet, Figure 2 is an overall cross-sectional view of a conventional appliance for switching between direct water discharge and water spraying, and Figures 3a and 3b show an embodiment of the present invention. a is a side cross section, b is a front sectional view, FIG. 4 is a perspective view of the upper case, and FIGS. 5 a, b, and c show the rotary valve body, a is a front view, and b is A ₁ -A ₂ sectional view, c is a BB' sectional view at a, Fig. 6 is a perspective view of the rotating lever, and Fig. 7 a, b, and c explain its operation, and a is a water-stop state. , b is a sectional view of each main part in a direct water discharge state, c is a sectional view of each main part in a water sprinkling state, FIGS. ₁ - A ₂ - A ₃ - A ₄ sectional view, and Figure 9 shows a third embodiment of the rotary valve body of the present invention, where a is a front view and b is an A ₁ - A ₂ sectional view at a. . DESCRIPTION OF SYMBOLS 1... Case, 2... Water supply pipe connection part, 4... Opening for direct water discharge, 5... Opening for watering, 11a...
Inflow channel, 12... Water supply pipe, 16... Rotary valve body, 19... First outflow channel, 29... Water stop part, 3
0...Water flow section, 35...Rotation lever, 39...
Water flow diffusion plate, 46...second outflow path.

Claims (1)

[Scope of Claims] 1. A cylindrical case fixed to the tip of a water supply pipe, and a rotary valve body rotatably disposed within the case with its rotational axis perpendicular to the axial direction of the case. , an external operating means for rotating the rotary valve body, an inlet passage communicating with a water supply pipe is formed at one axial end of the case, and a direct water discharge opening is provided at the center of the other axial end. A second outflow that forms a first outflow path and has an outflow hole formed near the first outflow path and a watering opening that is formed around the direct water discharge opening and communicates with the outflow hole. road first
A water faucet formed around an outflow path, wherein a water flow diffusion plate formed in a circular flat plate shape is provided protruding from the outer periphery of the first outflow path in the second outflow path, and the water flow diffusion plate is The rotary valve body has a water passage portion that selectively communicates the inflow path with either the first outflow path or the second outflow path; A water faucet, characterized in that the water faucet is provided with a water stop part that closes an inflow passage, and can be switched between water stop, direct water discharge, and water sprinkling states depending on the rotational position of the external operating means.