JPH04143337A - Siphon jet type closet - Google Patents

Abstract

PURPOSE:To reduce blow sound at washing by providing a jet water scattering means on a nozzle to inject washing water facing to a trap drain water passage, and letting flow.the jet water along the side wall of the drain water passage. CONSTITUTION:A wedge-like jet waterscattering means 8 is provided on the extreme end of a nozzle 8 to inject washing water facing to a trap drain water passage 4, so as to let flow the jet water along the side wall of the trap drain water passage 4. The jet water is prevented to vigorously collide with the bending part 4a of the trap drain water passage 4. Hereby, generation of noise and blow sound at washing can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a siphon-jet toilet, and particularly to a siphon-jet toilet with low cleaning noise.

(Prior Art) FIG. 5 is a sectional view of the main parts of a conventional siphon jet toilet.

The conventional siphon jet toilet 100 has a bowl part 10.
Nozzle 103 having a jet injection hole 102 at the bottom of 1
The cleaning water is injected from this nozzle 103 to the innermost part of the rising pipe of the trap drainage channel 104 as shown by the arrow.
A siphon effect is generated in the trap drainage channel 104. Then, even after the siphon action transports the dirty water and filth in the bowl part 101 and the water-sealing surface in the bowl part 101 drops below the lower end 106 of the partition wall 105, the supply of purified water is continued for a while, and the bowl part 101 Drainage channel 1 removes dirt from the bottom and floating dirt from the water sealing surface using a jet stream.
It is pushed to the 07 side (blow effect).

(Problem to be Solved by the Invention) However, in such a conventional siphon jet toilet bowl, the jet injection hole 102 has a single hole structure as shown in the vertical cross-sectional view and the plan view of FIG. During blowing, the cleaning water injected from this jet injection hole 102 is
It concentrates and directly collides with the inner wall of the bent portion 108 of the trap drainage channel 104, generating a large amount of noise.
As shown in FIG.
When the temperature drops below O6, the water leaks into the bowl portion 101 from between the lower end 106 of the partition wall 105 and the water sealing surface 109. Therefore, there is a drawback that the cleaning sound (blow sound) becomes louder after the siphon action is completed.

An object of the present invention is to provide a siphon jet toilet bowl that eliminates these drawbacks and achieves low cleaning noise.

(Means for Solving the Problems) In order to eliminate the above-mentioned drawbacks, the siphon jet toilet bowl according to the present invention has a water diffusion means at the outlet part so that the jetted washing water flows along the side wall of the trap drainage channel. A feature is that a nozzle with a jet water flow path is provided at the bottom of the bowl part.

(Function) According to the siphon jet toilet of the present invention, the cleaning water injected from the jet injection hole having the water diffusion means at the outlet is diffused and flows along the side of the trap drainage channel, so that the trap drainage channel is curved. Collisions do not concentrate on the inner walls of the parts.

(Example) The present invention will be explained in detail below with reference to the drawings.

FIG. 1 is a longitudinal sectional view of a siphon jet toilet according to the present invention.

The siphon jet toilet bowl 1 has a bowl part 3 separated by a partition wall 2 and a trap drainage channel 4.

A rim water passage 6 is provided in the rim part 5 at the upper peripheral edge of the bowl part 3, and rim water injection holes 7 are opened diagonally with respect to the bowl part 3 at appropriate intervals on the bottom surface of the rim water passage 6. A nozzle 8 is attached to the bottom of the bowl portion 3.

Further, a box 9 is provided at the rear upper part of the toilet bowl 1, and a cleaning water supply device 10 is provided within this box 9. This cleaning water supply device 10 includes a control unit 14 and an atmosphere release valve 15 that drive a rim valve 12 and a jet valve 13 in response to a cleaning activation input from an operating unit 11. One end of the rim valve 12 is connected to a water supply pipe 16, and the other end is connected to the rim water passage 6 via a rim water supply pipe 17. One end of the jet valve 13 is connected to a water supply pipe 16, and the other end is connected to the nozzle 8 via an atmosphere release valve 15 and a jet water supply pipe 18.

FIG. 2 shows a longitudinal sectional view and a plan view of the nozzle in this embodiment.

The nozzle 8 has a wedge 8a which is a water diffusion means at the center of the outlet part.
2 corresponding to the conventional jet injection hole 102 divided by
Two jet water channels 8b and 8c are provided. This flow path 8b
, 8c are bored with a semicircular arc cross section. The nozzle 8 is attached to the bottom of the bowl portion 3 so that the cleaning water diffused and sprayed from the flow channels 8a and 8b flows toward the back of the trap drain channel and along the side wall of the trap drain channel. be done. Note that the flow paths 8a and 8b are shown in FIGS.
) may be used. However, unlike other nozzles, the nozzle (g) does not have a wedge to form many channels to disperse the water, but instead uses the mixing effect of the small vortices that occur when the channel suddenly widens and the main stream. This is a diffused jet stream.

The present embodiment operates as follows in the above configuration.

When the cleaning switch or the like of the operation section 11 is pressed and a cleaning start input is given to the control section 14, the control section 14 first drives the rim valve 12 to an open state. Thereby, the cleaning water is supplied from the rim water injection hole 7 to the bowl portion 3 via the rim water supply pipe 17 and the rim water passageway 6, thereby cleaning the bowl portion. Next, the control unit 14 drives the jet valve 13 into an open state. As a result, the cleaning water diffused and sprayed from the jet water channels 8b and 8c of the nozzle 8 is directed deep inside the trap drainage channel, reaches the bent portion 4a of the trap drainage channel 4 along the side wall surface of the partition wall 2, and further Flows along its side walls. This washing water causes a siphon effect in the trap drainage channel, and the dirty water and filth in the bowl portion 3 are discharged. For this reason, the water sealing surface of the bowl part 3 is lower than the lower end 2a of the partition wall 2, but during this time, the supply of cleaning water jetted from the nozzle 8 is continued, so that dirt and debris at the bottom of the bowl part 3 and floating on the water sealing surface Floating filth, etc., is pushed into the drainage channel by this jet stream (
blow effect). At this time, the injected cleaning water diffuses and flows along the side wall of the trap drainage channel, so it does not collide with force against the bent portion 4a of the trap drainage channel 4 and generate large noise at the bent portion 4a. Further, this cleaning water generates a water film, and this water film also prevents sound from leaking to the bowl portion 3 side.

When the water supply time to the nozzle 8 has elapsed, the control section 14 closes the jet valve 13 and opens the rim valve 12 for a predetermined period of time to supply water to the bowl section 3 in a sealed manner.

(Effects of the Invention) According to the siphon jet toilet of the present invention, the flushing water jetted from the jet water channel having the water diffusion means at the outlet is diffused and flows along the side wall of the trap drain channel. Since collisions do not occur concentratedly on the inner wall of the bending part, the generation of collision noise is reduced, and at the same time, there are great benefits such as improvement in blow noise.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view of a siphon jet toilet according to the present invention, Fig. 2 is a longitudinal sectional view of a nozzle in this embodiment and a plan view thereof, and Fig. 3 is a longitudinal sectional view of a nozzle in another embodiment. FIG. 4 is a vertical sectional view and a plan view of a conventional single-hole nozzle, and FIG. 5 is a sectional view of a main part of a conventional siphon jet toilet. 1... Siphon jet toilet, 2... Bulkhead, 3...
...Bowl part, 4...Trap drainage channel, 5...Rim part, 6...Rim passageway, 7...Rim water injection hole, 8...
・Nozzle, 8a... Wedge, 8b, 8c... Jet water channel, 9... Box, 10... Cleaning water supply device, 11... Operation unit, 12... Rim valve, 13.・・・
Jet valve, 14... Control unit, 15... Atmospheric release valve, 16... Water supply pipe, 17... Rim water supply pipe, 18
...Jet water supply pipe.

Claims (1)

[Claims] In a toilet bowl equipped with a nozzle at the bottom of the bowl part that sprays cleansing water toward the trap drain, the nozzle has a water diffusion means at the outlet so that the sprayed cleansing water flows along the side wall of the trap drain. A siphon jet toilet bowl characterized by having a jet water flow path.