JP2538781Y2 - Nozzle device of sanitary washing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a sanitary washing apparatus having a local washing function, and more particularly to a structure for self-cleaning a nozzle for jetting washing water.

[Conventional technology]

A sanitary washing device having a local washing function generally has a structure in which hot water is sprayed toward a local portion by a nozzle device, and an example thereof is shown in FIG.

In the figure, a casing 1 of a sanitary washing device is fixed to a toilet body 50, and a toilet seat 2 and a toilet lid 3 are attached to the casing 1 so as to be freely opened and closed. Inside the casing 1,
A tank for heating the washing water, a hot air fan for drying, and a control unit are built in, and the operation of each function is performed by an operation unit 1 a provided on the upper surface of the casing 1. The cleaning nozzle device 4 includes a cylinder 5 and a nozzle body 6 that protrudes and retracts from the cylinder 5 as shown in the schematic diagram of FIG.

The supply pipe 1 is connected to the cylinder 5 of the nozzle device 4 via a heating tank 1b and a valve unit 1c built in the casing 1.
The nozzle d is connected, and the nozzle body 6 is mechanically connected to the output shaft of the electric motor 4a to move forward and backward. The supply of the cleaning water and the operation of the nozzle body 6 are all controlled by the control unit 1e.

The nozzle body 6 is advanced to the cleaning position by the electric motor 4a, and the cleaning water is jetted from the nozzle head 6a at the tip to clean the local part. Then, when the cleaning is completed, the nozzle head 6a is stored in the cylinder 5 again to clean the nozzle head 6a. In order to clean the nozzle head 6a, a structure in which washing water is poured on the peripheral surface of the nozzle head 6a is provided by the cylinder 5.
The nozzle head 6a is provided at the tip of the nozzle head 6a and is supplied with cleaning water for cleaning after being stored in the cylinder 5.
Wash off.

[Problems to be solved by the invention]

However, since the cleaning water only flows off along the peripheral surface of the nozzle head 6a, a sufficient cleaning effect cannot be obtained if the power and flow rate of the cleaning water to be sent are small. Further, even when the nozzle head 6a is housed in the cylinder 5, even if the tip of the nozzle head 6a protrudes from the tip of the cylinder 5, even if the flow rate of the washing water is increased, it flows down without contacting the surface of the nozzle head 6a, Similarly, improvement in the cleaning effect cannot be expected.

The problem to be solved by the present invention is to ensure that the nozzle head can be cleaned even if the flow rate and water level of the cleaning water are small.

[Means for solving the problem]

According to the present invention, a nozzle which has a plurality of ejection holes and a plurality of flow paths communicating with the plurality of ejection holes therein and moves on a fixed trajectory is cleaned from each ejection hole according to a position on the trajectory. In a nozzle device of a sanitary washing device that ejects water, when the nozzle reaches a predetermined position on the trajectory, a washing room constituent member that constitutes a washing room sealed with the nozzle, the plurality of ejection holes, and the plurality of ejection holes. Cleaning water supply means for supplying cleaning water to the cleaning room through a plurality of water channels including a flow path, wherein the cleaning room constituent member has an outlet for discharging the cleaning water used for cleaning the nozzle. It is characterized by having.

[Action]

By accommodating the entire nozzle in the cleaning room constituent member, the entire nozzle is cleaned by the supplied cleaning water and is cleaned by a sufficient amount of cleaning water from a plurality of cleaning water supply paths. Higher cleaning is possible.

〔Example〕

FIG. 1 is a longitudinal sectional view of the nozzle device of the present invention, and FIG. 2 is a cutaway plan view of the tip of the nozzle device. The same members as those described in the section of the related art are designated by the same reference numerals, and detailed description thereof will be omitted.

In the figure, an electric motor 4a is provided at the base end of the nozzle body 6.
A leaf spring 4c wound around a drum 4b fixed to the output shaft is connected. And, by the forward and reverse rotation of the drum 4b,
The nozzle body 6 is reciprocated between the storage position and the cleaning position, and when reaching the cleaning position, the cleaning water is jetted from the nozzle head 6a.

The nozzle head 6a is provided with a first ejection hole 6b for anal cleaning and a second ejection hole 6c used for a bidet. The first and second ejection holes are provided inside the nozzle body 6.
A first flow path 7 and a second flow path 8 communicating with 6b and 6c, respectively, are formed. The first and second flow paths 7, 8 are divided by a block 9 arranged in the nozzle body 6, and the first flow path 7 is an annular cross section outside the block 9, and the second flow path 8 Is formed by a through hole formed in the block 9 in the axial direction.

FIGS. 3 (a) and 3 (b) are cross-sectional views taken along lines II and II-II in FIG. 1, respectively. 7a and the second inlet 8a to the second inlet 8 are opened respectively. These inlets 7
a and 8a are provided at a certain distance in the axial direction of the nozzle main body 6a, and are respectively aligned with the supply flow path of the supply pipe 1d from the heating tank 1c, so that the first ejection hole 6b or the second ejection hole 6c is provided. Spray the washing water from.

A cylindrical water supply adapter 10 to which a supply pipe 1d is connected is integrally provided at the tip of the cylinder 5. In the present embodiment, the cleaning room constituting member is constituted by the cylinder 5 and the water supply adapter 10 connected thereto. The water supply adapter 10 is provided with a supply port 10a communicating with the supply pipe 1d, and two U-shaped packings 10b, 1
0c is provided. These packings 10b and 10c are used when the nozzle body 6 advances and reaches the cleaning position.
And a water supply chamber 10d that creates a flow path from the supply port 10a to the first inlet 7a or the second inlet 8a.

When the nozzle body 6 is stored in the cylinder 5,
1, the tip side of the nozzle head 6a including the second ejection holes 6b and 6c is located at a position protruding from the water supply chamber 10d. Similarly, partition walls 5a and 5b are provided on the inner periphery of the base end side of the cylinder 5 at intervals including the first and second inlets 7a and 8a at the same time when the nozzle body 6 is housed in the cylinder 5. ing. Then, packings 5c and 5d for sealing the outer peripheral surface of the nozzle main body 6 are provided on each of the partition walls 5a and 5b, and thereby a circulation chamber 5e which is a closed space together with the peripheral surface of the nozzle main body 6 is formed.

Further, when the nozzle body 6 is housed in the cylinder 5, the peripheral wall of the nozzle body 6 included in the water supply chamber 10 d supplies cleaning water to the first flow path 7 for cleaning the nozzle head 6 a. Water inlet 11 is provided. And
The water supply port 11 incorporates a check valve 12 that opens the flow path by the water pressure of the washing water from the water supply chamber 10d.

FIG. 5 is an enlarged vertical sectional view of a check valve 12 portion, and a valve seat 11a is formed on a lower surface of a water supply port 11 opened in a peripheral wall of the nozzle body 6. Block 9 in which second flow path 8 is formed
The auxiliary valve seat 9b is formed so as to be coaxial with the water supply port 11,
The upper surface of the valve body 12a of the check valve 12 can be seated on the valve seat 11a and the lower surface thereof can be seated on the auxiliary valve seat 9b. The valve body 12a is seated by a coil spring 13 provided between the valve body 12a and the block 9 side.
It is urged to the 11a side. When the cleaning water is supplied from the water supply chamber 10d when the nozzle body 6 is housed in the cylinder 5 by incorporating the check valve 12 as described above, the coil spring 13 is contracted by the water pressure, and FIG. As shown in b), the valve element 12a moves downward to open the water supply port 11.

Further, a hollow cylindrical cover 14 is fixed to the distal end side of the water supply adapter 10 of the cylinder 5. The cover 14 is provided with the first and second ejection holes 6b and 6c of the nozzle head 6a at the storage position.
4 (a cross-sectional view taken along line III-III in FIG. 1) having an annular length between the nozzle and the peripheral surface of the nozzle head 6a. With an inner diameter of An opening 14a of the nozzle head 6a is opened at the tip, and a drain 14b for cleaning water for cleaning is provided on the lower surface. A slight clearance is provided between the peripheral surface of the tip of the nozzle head 6a and the inner peripheral surface of the opening 14a of the cover 11, so that most of the water flowing into the cover 14 is drained.
Let it flow out of 11b.

In the above configuration, when the nozzle body 6 is extended to the anal cleaning position by the electric motor 4a, the first inlet 7a is located in the water supply chamber 10d, and the first flow path 7d is supplied from the supply pipe 1d to the first flow path 7d.
Cleaning water is sent to That is, the packings 10b, 10c
Is in close contact with the outer peripheral surface of the nozzle body 6, so that the supply port 10
A flow path having an annular cross section communicating from a to the first inflow port 7a is formed, and the washing water is supplied from the first inflow port 7a to the first flow path 7 by the water supply adapter 10. Then, the washing water flowing into the first flow path 7 is ejected from the first ejection holes 6b of the nozzle head 6a that has reached the washing position. At this time, the valve body of the check valve 12
In FIG. 5A, the water supply port 12a receives the water pressure of the cleaning water upward and is urged by the coil spring 13 so that the water supply port 11 is closed. Therefore, in the process of local cleaning, the water supply port 11 also protrudes outside from the cylinder 5, but the cleaning water does not leak from the water supply port 11.

When the second ejection hole 6c is used, the amount of advance of the nozzle body 6 is increased so that the second inlet 8a is located in the water supply chamber 10d. As a result, the washing water is supplied from the water supply chamber 10d to the second flow path 8 as in the case of using the first ejection holes 6b, and the washing water is ejected from the second ejection holes 6c of the nozzle head 6a.

When the cleaning is completed, the nozzle body 6 returns into the cylinder 5 as shown in FIG. At this time, as described above, the first and second inlets 7a and 8a are both housed in the circulation chamber 5e, while the water supply port 11 is located in the water supply chamber 10d. Therefore, when cleaning water is supplied from the water supply adapter 10 after the nozzle body 6 is housed in the cylinder 5, the check valve 12 opens the water supply port 11 as shown in FIG. As a result, as shown in FIG. 6, the cleaning water from the water supply port 11 flows down the first flow path 7 and is directly discharged from the first discharge port 6b and the flow toward the first inlet 7a. Break up into
Since the first inlet 7a and the second inlet 8a are both housed in the circulation chamber 5e, the washing water from the first inlet 7a flows into the second inlet 8a via the circulation chamber 5e,
It is ejected from the second ejection hole 6c at the tip through the second flow path 8.

If cleaning water is supplied after housing the nozzle body 6 in this manner, cleaning water for cleaning is simultaneously jetted from the first and second jet holes 6b and 6c of the nozzle head 6a in the cover 14. The jetted cleaning water flows so as to temporarily accumulate in the cover 11 while circling the peripheral surface of the nozzle head 6a, and cleans the entire peripheral surface with the nozzle head 6a immersed. For this reason, compared with the case where the washing water is simply flown along the peripheral surface of the nozzle head 6a, the nozzle head
The whole of 6a can be washed with washing water. If the flow rate of the cleaning water is set appropriately, the inside of the cover 10 can be filled with the cleaning water and the internal pressure can be increased, and this can be used to forcibly separate the foreign matter.

Furthermore, the first and second flow paths 7, 8 provided for local cleaning and the second
1, the nozzle head 6a can be cleaned using the second ejection holes 6b and 6c. For this reason, there is no need to newly add a flow path of cleaning water for cleaning, the volume around the nozzle device 4 can be suppressed, and the degree of freedom in layout of other devices in the limited casing 1 is increased. be able to.

[Effect of the invention]

According to the present invention, the entire nozzle can be housed in a cleaning room component and the entire nozzle can be cleaned with cleaning water, and a more powerful cleaning water can be discharged from a plurality of flow path systems. Washing is possible, and use while keeping the nozzle clean is possible.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing the nozzle device of the present invention, FIG. 2 is a partially cutaway plan view of a tip portion of the nozzle device, and FIGS. 3 (a) and (b) are lines II in FIG. FIG. 4 is a vertical sectional view taken along the line III-III of FIG. 1, FIG. 5 (a) is an enlarged vertical sectional view showing the installation of the check valve, FIG. 5 (b) is an enlarged longitudinal sectional view when the check valve is opened, FIG. 6 is a schematic diagram showing a flow of cleaning water for cleaning, and FIG. 7 is an example in which a toilet body is provided with a sanitary cleaning device. FIG. 8 is a schematic view showing a supply system of cleaning water to the nozzle device. 1: Casing, 1d: Supply pipe 2: Toilet seat, 3: Toilet lid 4: Nozzle device, 4a: Electric motor 5: Cylinder, 5e: Circulation chamber 6: Nozzle body, 6a: Nozzle head 6b: First ejection hole, 6c : 2nd outlet 7: 1st flow path, 7a: 1st inlet 8: 2nd flow path, 8a: 2nd inlet 9: block 10: water supply adapter, 10a: supply port 10b, 10c: packing, 10d : Water supply chamber 11: Water supply port, 11a: Valve seat 12: Non-return valve, 12a: Valve 13: Coil spring 14: Cover, 14a: Entrance 14b: Drain

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuhiro Katamune 5-1, 1-1 Kumiamihigashi, Kokura-minami-ku, Kitakyushu-shi, Fukuoka Tokoki Co., Ltd. Kokura Second Factory (72) Inventor Yasuhiro Hiratsuka Kasugai, Aichi Prefecture 1 Aichi-cho, Aichi-shi Aichi Electric Co., Ltd. (72) Inventor Masaki Ohashi 1 Aichi-cho, Kasugai-shi, Aichi

Claims (1)

(57) [Scope of request for utility model registration] A nozzle having a plurality of ejection holes and a plurality of flow passages communicating with the plurality of ejection holes therein and moving along a fixed trajectory is provided from each of the ejection holes according to a position on the trajectory. In a nozzle device of a sanitary washing device that ejects washing water, when the nozzle reaches a predetermined position on the trajectory, a washing room constituent member that constitutes a washing room sealed with the nozzle, the plurality of ejection holes, and the plurality of ejection holes. Washing water supply means for supplying washing water to the washing room through a plurality of water passage systems comprising the above-mentioned flow passages. The washing room constituent member includes a drainage for discharging washing water used for washing the nozzle. A nozzle device for a sanitary washing device comprising an outlet.