JP2551808Y2 - 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 jetted 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 valve 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 is composed of a cylinder 5 and a nozzle body 6 protruding and retracting from the cylinder 5 as shown in the schematic diagram of FIG.

A supply pipe is connected to the cylinder 5 of the nozzle device 4 via a heating tank 1b built in the casing 1 and a valve unit 1c.
1d 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]

The present invention provides a nozzle for a sanitary washing device, comprising: a nozzle head having an ejection hole; and a holding member holding the nozzle head and having a flow path communicating with the ejection hole therein, wherein the holding member moves on a fixed trajectory. In the apparatus, at a predetermined position on the trajectory, a cleaning room constituting member forming a closed cleaning room surrounding at least the holding member, and cleaning water supply means for supplying cleaning water to the cleaning room, further comprising: The holding member is provided with a reduction portion for reducing the flow path resistance more than the others in order to easily guide the cleaning water supplied to the cleaning chamber to the nozzle head.

Further, the reduction section may form an annular gap between the reduction section and the cleaning room constituent member.

[Action]

By storing the holding member including the nozzle head in the cleaning room constituent member and supplying the cleaning water to the cleaning room constituent member, the entire nozzle head and the holding member are cleaned, and the cleaning water after cleaning is supplied. Is discharged from the discharge port, and the nozzle head and its holding member can be kept clean.

Further, since the reduction portion is provided, the amount of cleaning water passing increases, and as a result, not only the cleaning efficiency of the holding member is improved, but also the cleaning efficiency of the nozzle head is simultaneously improved.

Further, since the reduced portion forms an annular gap between the cleaning member and the cleaning chamber constituent member, it is possible to clean not only the entire peripheral surface of the holding member but also the entire peripheral surface of the nozzle head.

〔Example〕

FIG. 1 is a longitudinal sectional view of the nozzle device of the present invention, and FIG. 2 is a cutaway plan view. Note that 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. Also in this embodiment, an annular gap is provided between the outer peripheral surface of the nozzle body 5 and the inner peripheral surface of the cylinder 5 that constitute the holding member, and this gap is used to supply cleaning water for cleaning up to the nozzle head 6a. It is used as a cleaning channel 5a for feeding. Reference numeral 5b denotes a seal ring provided at the end of the cleaning channel 5a.

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. A first flow path 7 and a second flow path 8 communicating with the first and second ejection holes 6b and 6c, respectively, are provided inside the nozzle body 6.
Are formed. The first and second flow paths 7 and 8 are the nozzle body 6
The first flow path 7 is an annular cross-section outside the block 9,
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 the lines II and II-II of 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, a cleaning room constituting member is constituted by the cylinder 5 and the water supply adapter 10 connected thereto. This water supply adapter
A supply port 10a communicating with the supply pipe 1d is provided in 10, and two packings 10b and 10c having a U-shaped cross section are provided with the supply port 10a interposed therebetween. These packings 10b and 10c seal the peripheral surface of the nozzle body 6 when the nozzle body 6 advances and reaches the washing position, and establishes a flow path from the supply port 10a to the first inlet 7a or the second inlet 8a. Create.

On the other hand, the nozzle body 6 is formed in an outer shape such that when the nozzle body 6 is housed in the cylinder 5, the peripheral surface is separated from the upper packing 10b and is in close contact with the lower packing 10c. That is, a reduced portion 6d is formed in the middle of the nozzle body 6 in the axial direction, and as shown in FIG.
When it is stored in the
Corresponding to 10b, the nozzle head 6a is sealed by a lower packing 10c.

Further, a hollow cylindrical cover 11 is fixed to the distal end side of the water supply adapter 10 of the cylinder 5. The cover 11 has an axial length that wraps the entire nozzle head 6a in the storage position, and has an inner diameter that allows a space of an annular cross section to be formed between the cover 11 and the peripheral surface of the nozzle head 6a. And
At the tip, a protrusion 11a of the nozzle head 6a is opened, and a drainage port 11b 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 11a of the cover 11 so that most of the water flowing into the cover 11 flows out from the drain port 11b.

In the above configuration, when the nozzle body 6 is extended to the anal cleaning position by the electric motor 4a, the first inflow port 7a is aligned with the supply port 10a of the water supply adapter 10, and the first pipe 7d is moved from the supply pipe 1d to the first pipe.
Wash water is sent into the flow path 7. At this time, the nozzle body 6
Since the reduced portion 6d of the cylinder goes out of the cylinder 5, the packing 10
Both b and 10c are in close contact with the outer peripheral surface of the nozzle body 6, and a flow path having an annular cross-section communicating from the supply port 10a to the first inlet 7a is formed. The washing water that has flowed 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.

When the second ejection hole 6c is used, the amount of advance of the nozzle body 6 is increased so that the second inflow port 8a is aligned with the supply port 10a. As a result, the second inlet 8a
Wash water is sprayed from the second ejection hole 6c of the nozzle head 6a via the flow path 8. Also in the case of cleaning by the second injection hole 6c,
The reduced portion 6d of the nozzle body 6 goes out of the cylinder 5 and the packings 10b and 10c seal the peripheral surface of the nozzle body 6.

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 packing 10b on the base end side of the nozzle body 6 has a gap corresponding to the reduced portion 6d, and the other packing 10c is in close contact with the peripheral surface on the nozzle head 6a side. For this reason, when the cleaning water is continuously supplied from the supply port 10a even after the nozzle body 6 is stored, the nozzle body 6 and the cylinder 5 are moved through the gap between the packing 10b and the reduced portion 6d as shown in the schematic diagram of FIG. Flows between. Therefore, the cleaning water is supplied to the cleaning flow path 5a between the outer peripheral surface of the nozzle body 6 and the inner peripheral surface of the cylinder 5, and the cleaning water is supplied from the first and second inlets 7a and 8a to the first and second inlets. It flows into the channels 7 and 8. As a result, the cleaning water is simultaneously discharged into the cover 11 from the first and second ejection holes 6b and 6c of the nozzle head 6a.

The cleaning water flowing into the cover 11 flows around the peripheral surface of the nozzle head 6a so as to temporarily accumulate in the cover 11, and performs cleaning while the nozzle head 6a is immersed. For this reason, the entire nozzle head 6a can be washed with the washing water as compared with a case where the washing water is simply caused to flow along the peripheral surface of the nozzle head 6a. 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.

As described above, when the nozzle body 6 is stored, the nozzle body 6 and the nozzle head 6a are cleaned by the cleaning water from the cleaning channel 5a. Therefore, the entire portion exposed when driven with the nozzle main body 6 can be cleaned, and the nozzle main body 6 can be kept clean as compared with a conventional nozzle head 6a in which only the washing water is bathed.

[Effect of the invention]

When the nozzle head is housed in the cleaning room component together with the holding member, the entirety of the nozzle head and the holding member are cleaned by supplying the cleaning water into the cleaning room component. For this reason,
Since the nozzle head and the holding member are cleaned in a closed space as compared with the conventional floating type, the degree of cleaning is improved and the nozzle can be kept clean. Also,
By providing the reduced portion, the cleaning efficiency of the holding member is improved, and further, the reduced portion forms an annular gap between the cleaning member and the cleaning chamber constituent member, so that the entire circumferential surface of the holding member and the entire circumference of the nozzle head are formed. Can be washed over the surface. For this reason, compared with the conventional run-down type, the nozzle head and the holding member are cleaned in the closed space, so that the cleaning degree is improved and the nozzle can be kept clean.

[Brief description of the drawings]

1 is a longitudinal sectional view showing the nozzle device of the present invention, FIG. 2 is a partially cutaway plan view thereof, and FIGS. 3 (a) and 3 (b) are lines II and II-II in FIG. FIG. 4 is a vertical sectional view taken along the line III-III of FIG. 1, FIG. 5 is a schematic view showing the flow of cleaning water, and FIG. FIG. 7 is a schematic view showing a supply system of cleaning water to a nozzle device. 1: Casing, 1d: Supply pipe 2: Toilet seat, 3: Toilet lid 4: Nozzle device, 4a: Electric motor 5: Cylinder, 5a: Cleaning channel 6: Nozzle body, 6a: Nozzle head 6b: First ejection hole , 6c: second ejection hole 6d: reducing portion 7: first passage, 7a: first inlet 8: second passage, 8a: second inlet 9: block 10: water supply adapter, 10a: supply port 10b , 10c: Packing 11: Cover, 11a: Entrance 11b: Drain

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor: Tetsuhiro Katamune 5-1-1, Kushiamihigashi, Kokura-minami-ku, Kitakyushu-shi, Fukuoka Tokoki Co., Ltd. Kokura Second Factory (72) Inventor: Yasuhiro Hiratsuka Kasugai, Aichi Prefecture No. 1, Aichi-cho, Aichi-shi (72) Inventor Masaya Kajita No. 1, Aichi-cho, Kasugai-shi, Aichi (56) References JP-A-62-220622 (JP, A)

Claims (2)

(57) [Scope of request for utility model registration] 1. A sanitary washing apparatus comprising: a nozzle head having an ejection hole; and a holding member holding the nozzle head and having a flow passage communicating with the ejection hole therein, wherein the holding member moves on a fixed path. In the nozzle device, at a predetermined position on the trajectory, a cleaning room constituent member configuring a closed cleaning room surrounding at least the holding member, and cleaning water supply means for supplying cleaning water to the cleaning room, Further, the holding member includes a reducing portion for reducing the flow path resistance more than others in order to easily guide the cleaning water supplied to the cleaning room to the nozzle head. Nozzle device. 2. The nozzle device for a sanitary washing device according to claim 1, wherein said reduced portion forms an annular gap between said cleaning room constituent member and said nozzle. Nozzle device.