JP2000273925A - Water discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a water discharge device that is free from water drips from the water discharge device at the time of water shutoff operation and can be used for toilet and the like reliably by providing a back flow preventing means in a discharge part of a water discharge nozzle and providing a water film generating means at a downstream side of the back flow preventing means. SOLUTION: A tubular part 21 is formed at a front end of a water discharge coupling 16 and a back flow prevention valve 22 as a back flow prevention means is housed in the tubular part 21 and a tubular body 37 having a mesh member 36 is secured to a front end part of the tubular part 21. The back flow prevention valve 22 comprises a casing 24 having a tubular body protruding from a valve seat part 23 provided on an upper part, a valve element 35 to be abutted against the valve seat part 23 and a support member for supporting the valve element 25. When an opening/closing operation part 12 of a shower head 10 is turned to close, water is not permitted to flow out because water pressure is not applied to the valve element 25 of the back flow prevention valve 22 and abutted against the valve seat part 23. Because water retained in an upstream side of the mesh body 36 does not fall due to surface tension of water adhering to the mesh body 36, water is prevented from dripping from the shower head after water shutoff.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water spouting device, and more particularly to a water spouting device used in a toilet or the like.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 5-9659 discloses a conventional technique for preventing shower heads from dripping. A check valve and a filter were provided in the flow path on the upstream side of the sprinkler plate.

[0003]

However, since there is a space between the check valve and the water spray plate, water accumulated in the space between the check valve and the water spray plate at the time of the water stopping operation is on the floor. There is a drawback that it hangs. Therefore, when such a water discharge device is used in a toilet or the like where the waterproofing is not perfect, the floor in the toilet may be wetted and water may leak. In view of the above, there is provided a water discharge device that can be used safely even in a toilet that is not completely waterproofed so that water does not droop from the water discharge device to the floor during a water stopping operation. In particular, close the opening / closing means and hang the spout nozzle.
The purpose of the present invention is to prevent the occurrence of dripping due to air exchange from the water discharge port of the water discharge nozzle portion when the liquid is hung on the portion.

[0004]

The discharge end of the water discharge nozzle is provided with backflow prevention means, and the water film generation means is provided downstream of the backflow prevention means. For this reason, when the water stops, the water outlet is closed to prevent air exchange and prevent dripping.

[0005] Further, by providing a water film generating means downstream of the backflow prevention means, the water that slightly accumulates on the downstream side of the backflow prevention means is prevented from dripping using the surface tension of the water film generation means. When the water film generating means is a net,
The form of the water discharge is rectified by the net, so that the water discharge from the water discharge nozzle can be prevented from scattering when the urine is washed.

Further, by providing a water film generating means close to the backflow prevention means, the space for collecting water is reduced, thereby reducing the amount of water collected downstream of the backflow prevention means and preventing dripping.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to embodiments shown in the drawings. FIG.
1 is a perspective view of a toilet device provided with a water discharge device of the present invention.
In FIG. 1, 1 is a toilet bowl, 2 is a tank, 3 is a tank lid also serving as a hand-washing ball, 4 is a hand-washing fitting, 5 is a water stopcock, 6
Is a handle, 7 is a flexible hose, 8 is a water supply pipe, 9 is a hanger, and 10 is a water discharge nozzle.

FIG. 2 is a perspective view of the water discharge nozzle 10. An opening / closing operation section 12 as an opening / closing means is provided on the upper surface of the water discharge nozzle main body 11 so that water discharge and water stop from the water discharge section 13 can be operated with the water discharge nozzle 10 held.
FIG. 3 shows an enlarged cross-sectional view of the water discharge section of the water discharge nozzle 10. A water discharge joint 16 having a water passage 15 opened in contact with an opening 14 of the water discharge nozzle body 11 via a packing 17, and a screw 18 is inserted from the water passage 15 of the water discharge joint 16 into the shower head body 1.
It is fixed by screwing it into a mounting cylinder 20 protruding from the inside of one flow path 19.

A cylindrical portion 21 is provided at the tip of the water discharge joint 16, and a check valve 2 as a check device is provided in the cylindrical portion 21.
2 are stored. The backflow prevention means is provided with a valve portion which is urged in the closing direction when the opening / closing means is closed, and moves in the opening direction by receiving water pressure when the opening / closing means is opened. FIG. 4 shows an enlarged sectional view of the water spouting joint 16. The check valve 22 is provided with a valve seat 23 at an upper part thereof, a casing 24 having a cylindrical body protruding from the valve seat 23, a valve body 25 housed in the casing 24 and abutting on the valve seat 23, It comprises a support member 27 that supports the body 25 via a spring 26. The casing 24 and the support member 27 are fixed, and the valve body 25 and the spring 26 are housed and integrated to form the check ring 22.

Since the valve body 25 is constantly pressed by the spring 26, no pressure is applied to the valve body 25 when the open / close operation section 12 of the shower head 10 is closed.
As shown in FIG. 4, the valve body 25 comes into contact with the valve seat portion 23, and water in the flow path 19 of the shower head main body 11 does not discharge.

A groove 28 is formed on the outer periphery of the valve seat 23, and an O-ring 29 is housed in the groove 28. The valve body 25 includes a valve body 30 and an O-ring 33 housed in a groove 32 provided on the outer periphery of a flange 31 of the valve body 30. The support member 27 is provided with a support portion 35 that supports the water passage 34 and the spring 26.

A cylindrical portion 21 is provided at the tip of the water discharge joint 16.
A cylindrical body 37 having a net 36 is attached to the tip of the. The net 36 rectifies the water at the time of spouting, prevents water splashing, and at the time of water stoppage, water accumulated on the upstream side of the net 36 does not fall due to the surface tension of the water adhering to the net 36. There is a function to make it.

When the opening / closing operation section 12 of the shower head 10 is opened, the valve body 25 of the check ring 22 is moved downstream from the valve seat 23 by water pressure.
5, water flows in through the gap, and the water passage 34 of the support member 27,
The water is discharged from the water discharge part through the net 36.

When the opening / closing operation section 12 of the shower head 10 is closed, no water pressure is applied to the valve body 25 of the check ring 22, so that the valve body 25 is pressed by the spring 26 and the valve seat section 23 is closed.
To prevent water from flowing out. In addition, because the surface tension of the water adhering to the net 36 does not cause the water accumulated on the upstream side of the net 36 to drop, it is possible to prevent dripping from the shower head after stopping the water, and complete the waterproof treatment. It can be used in toilets that are not.

FIGS. 5 and 6 show a second embodiment of the check valve. A check valve 40 is housed in the tubular portion 21 of the water discharge joint 16. FIG. 5 shows a state in which the check ring 40 is closed, and FIG. 6 shows a state in which the check ring 40 is open. The check valve 40 has a simpler structure and a smaller number of parts than the check valve 22. The check valve 40 is provided with a valve seat 41 at an end of the water passage 15 of the water discharge joint 16 at an upper portion, and a valve member 42 contacting the valve seat 41 and a support member 44 supporting the valve member 42 via a spring 43. Become. Valve seat 41, valve element 42, spring 43
Are stored in the water discharge joint 16 by the support member 44 so as to be integrated to form the check valve 40. In this embodiment, the supporting member 44 is also used as the cylindrical body 37 having the net 36. A water passage 46 is provided in the large diameter portion 45 of the valve element 42 so that water flows when the valve element 42 is separated from the valve seat 41.

[0016]

The water supply part, the water discharge nozzle, a flexible hose connecting the water supply part and the water discharge nozzle, a hanger for hooking the water discharge nozzle, and an opening / closing means for opening and closing water supply to the water discharge nozzle. In the water discharge device provided with, at the discharge end of the water discharge nozzle,
The backflow prevention means is provided, and the water film generation means is provided downstream of the backflow prevention means, so that when water stops, the water discharge port is closed to prevent air exchange and prevent water dripping, and the water is slightly accumulated downstream of the backflow prevention means. Water can be prevented from dripping using the surface tension of the water film generating means.

Since the water film generating means is provided close to the backflow preventing means, the space for collecting water is reduced,
Backflow prevention means Prevents dripping by reducing the amount of water accumulated on the downstream side.

Since a net is also provided as a water film generating means,
The form of the water discharge is rectified by the net, so that the water discharge from the water discharge nozzle can be prevented from scattering when the urine is washed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view of a water discharge nozzle according to the first embodiment of the present invention.

FIG. 3 is a sectional view of a main part of the water discharge nozzle according to the first embodiment of the present invention.

FIG. 4 is an enlarged sectional view of a main part of the first embodiment of the present invention.

FIG. 5 is an enlarged sectional view of a main part of a second embodiment of the present invention.

FIG. 6 is an enlarged sectional view of a main part of a second embodiment of the present invention.

[Explanation of symbols]

 7 Flexible hose 9 Hanger 10 Water discharge nozzle 12 Opening / closing operation part (opening / closing means) 22, 40 ... Backflow prevention valve (Backflow prevention means) 36 ... Net (water film generating means)

Claims (3)

[Claims] 1. A water supply unit, a water discharge nozzle, a flexible hose connecting the water supply unit and the water discharge nozzle, a hanger for hooking the water discharge nozzle, and an opening / closing means for opening and closing water supply to the water discharge nozzle. In the water discharge device provided with, at the discharge end of the water discharge nozzle,
A water discharge device comprising a backflow prevention means, and a water film generation means provided downstream of the backflow prevention means. 2. A water discharge device comprising a water film generating means provided in proximity to a backflow preventing means. 3. The water discharging device according to claim 1, wherein a net is provided as a water film generating means.