JPH09105165A - Nozzle for sanitary washer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the product of a nozzle, which has simple structure and cost of which is reduced, for a sanitary washer and the nozzle, from which cold water is not ejected at the time of usage and which has excellent facility. SOLUTION: A nozzle body 7 having a nozzel 7a at a front end section and a piston 7b and a water inlet in a rear section and a cylinder 8 holding the nozzle body 7 in a freely horizontally movable manner are provided. A water supply port 8a is formed at the rear end section of the side face of the cylinder 8 while a cover 10 with a nozzle guide 10a is installed so as to hermetically seal the rear end section of the cylinder 8. A spring 9 is further mounted into the cylinder 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nozzle for a sanitary washer, which is used for local cleaning after toilet.

[0002]

2. Description of the Related Art Conventionally, this type of nozzle for a sanitary washing machine has been
For example, Japanese Utility Model Laid-Open No. 61-93571, Japanese Utility Model Laid-Open No. 1-16
No. 4370, but as shown in FIG.
Cylinder head 18 having insertion guide opening 18b at the tip
A nozzle body 17 having a piston 17b is inserted and supported in a cylinder 18 to which a is attached so as to be movable back and forth. The piston 17b is moved to the opening 18b by the spring 9 (coil spring) wound around the nozzle body 17.
The nozzle body 17 is supported in the backward direction when projected from the nozzle body 17, and a plug 17d is press-fitted into an opening at the tip of the nozzle body 17, and a jet port 17a is provided at the tip. A water supply port 18d and a water supply port 18c are provided at appropriate positions in front of and behind the cylinder 18, and a coil spring accommodating chamber formed between the cylinder 18 and the nozzle body 17 also serves as a cleaning water chamber for the outer peripheral surface of the nozzle or a piston 17
The hot water inlet port 17c and the water feed port 18d of b are communicable, and the water pressure chamber on the rear surface of the piston 17b and the water feed port 18c are communicable. Further, the water supply port 18c and the water supply port 18d
Is connected to the hot water tank by branching off the water supply hose so that they can communicate with each other. Reference numeral 10 denotes a lid, which is attached so that the rear end of the cylinder 18 is hermetically sealed and has a stopper 10c for stopping the nozzle body 17 at an appropriate position.

In such a configuration, when an operation unit (not shown) is operated to clean an arbitrary local part after use,
Water is supplied from the hot water tank to the hollow portion of the cylinder 18 from the water supply port 18c and the water supply port 18d via the water supply member. At this time, the hot water from the water supply port 18c becomes pressure water,
Water is delivered to the hollow portion of the sealed cylinder 18 between b and the lid 10. On the other hand, the pressure water from the water supply port 18d is supplied to the hollow portion between the piston 17b and the tip inside the cylinder 18, but leaks from the gap between the opening 18b and the side surface of the nozzle body 17. In addition to pressing the piston 17b with the pressure water from the water supply port 18c to compress the spring 9,
The nozzle body 17 projects forward from the opening 18b.

Moreover, when the nozzle body 17 is completely projected, the water inlet 17c which penetrates the piston 17b and communicates with the hollow portion of the nozzle body 17 coincides with the water outlet 18d, so that hot water from the hot water tank can be supplied. It is sent into the hollow portion of the nozzle body 17 and jets water from the jet outlet 17a toward the local portion.

[0005]

In such a structure, it is necessary to provide a plurality of water supply ports in the cleaning nozzle in the water passage from the hot water tank for producing the warm water for cleaning to the injection of cleaning water, and in the nozzle body after use. However, there was a drawback that the wash water stagnated and the cold water spewed out at the next use. Further, there is a problem that a member for branching the water channel is required, resulting in an expensive product having a complicated structure.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a nozzle provided at the front end with a piston and a water inlet at the rear, and a nozzle protruding into the main body during cleaning. A main body and a cylinder for holding the nozzle main body forward and backward are provided, a water supply port communicating with the inside of the cylinder and the nozzle main body is provided at the rear end of the side surface of the cylinder, and a nozzle guide is provided so as to seal the rear end of the cylinder. A lid is attached, and a spring for urging the nozzle main body in the backward direction is provided on the front side inside the cylinder.

[0007]

With the above construction, at the start of cleaning, the warm water from the water supply port becomes pressure water to push the piston and push the nozzle body forward against the spring. At this time, the nozzle guide and the jet water passage of the nozzle body are kept almost watertight. Next, when the nozzle main body is completely projected, a gap is created between the stepped portion at the tip of the nozzle guide and the water inlet, and hot water flows into the jet water passage of the nozzle main body from this gap and is jetted locally from the jet outlet. When the cleaning is completed and the water supply is stopped, the pressure on the piston due to the pressure water disappears, and the spring causes the nozzle body to retract.

[0008]

An embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, FIG. 2, and FIG.
Is a main body of a Western-style toilet, and a water supply tank 2 and a hot water tank 3 are attached to the back of the body, and a water supply hose 4 is provided between these tanks 2 and 3 to connect them. Reference numeral 8 denotes a cylinder, into which a nozzle body 7 to be described later is fitted and which is provided with a water supply port 8a on the side surface, and the vicinity of the tip is fixed above the rear part of the body 1. A water supply pipe 6 is provided between the hot water tank 3 and the cylinder 8 via a water supply member (for example, an electromagnetic pump) 5 or the like, and is connected to the water supply port 8a.

Reference numeral 7 denotes a hollow and sealed nozzle body made of, for example, a resin molded product. The nozzle body 7 has a jet end 7a at the front end and a piston 7b and a water inlet 7c at the rear end. A spring 9 for urging the nozzle body 7 in the direction for retracting the nozzle body 7 is interposed between the nozzle body 7 and the tip of the inside of the cylinder 8. The nozzle body 7 can be moved back and forth in the cylinder 8 via this spring 9. Is held. Reference numeral 7c denotes a water inlet, which communicates with the jet water passage 11 of the nozzle body 7 and sends hot water from the hot water tank 3 to the jet water passage 11. Reference numeral 10 is a lid mounted so as to seal the rear end of the cylinder 8. The lid 10 has a stopper 10c for stopping the nozzle body 7 at an appropriate position,
Moreover, it has a nozzle guide 10a which is fitted into the jet water passage 11 of the nozzle body 7. Further, a step 10b is provided at the tip of the nozzle guide 10a.

Next, the operation of the above configuration will be described.

When a manipulating part (not shown) is operated to wash any desired area after the toilet, as the warm water from the warm water tank 3 reaches and the water pressure increases, the water supply port connected to the water supply pipe 6 by the water supply member 5. Water is supplied from 8a to the hollow portion of the cylinder 8.

On the other hand, when the cleaning water pressure becomes larger than the compression force of the spring 9, the pressure water is supplied from the water supply port 8a to the piston 7b.
Is pressed to compress the spring 9, and the nozzle body 7 is projected forward from the opening 8b as shown in FIG. At this time, the nozzle guide 10 a and the jet water channel 11 of the nozzle body 7
Is almost watertight. That is, the nozzle body 7
During the projecting operation, the pressure water from the water supply port 8a hardly enters the hollow portion of the nozzle body 7 through the water inlet port 7c.

Next, when the nozzle body 7 is completely projected, a gap 13 is formed between the step 10b at the tip of the nozzle guide 10a and the water inlet 7c. Warm water is this gap 13
Flows into the jet water channel 11 of the nozzle body 7 from the jet port 7a
Ejects from the area toward the local area.

When the water supply is stopped after the completion of cleaning, the pressure on the piston 7b due to the pressure water disappears, the spring 9 retracts the nozzle body 7, and the state shown in FIG. 2 is restored.

[0016]

As described above, according to the present invention, the nozzle main body having the jet end at the front end and the piston and the water inlet at the rear end and protruding into the main body at the time of cleaning, and the cylinder for holding the nozzle main body in a retractable manner. And, at the rear end of the side surface of the cylinder, water supply ports that communicate with the inside of the cylinder and the nozzle body are provided,
A lid with a nozzle guide was attached so as to seal the rear end of the cylinder, and a spring for urging the nozzle body in the direction of retracting the nozzle was installed in the front side of the cylinder. The structure of the members is simple,
As the warm water from the warm water tank reaches and the water pressure rises, the nozzle body moves forward against the spring and sprays the warm wash water locally from the wash water injection part. It also has the advantage that cleaning water will not stagnate in the nozzle body after use and will not be ejected at the time of next use, the number of parts will be small, the structure will be simple, the assembly will be easy and the inexpensive sanitary washer nozzle can be supplied. is there.

[Brief description of the drawings]

FIG. 1 is a schematic side sectional view of an entire toilet bowl relating to a nozzle for a sanitary washing device according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the nozzle for a sanitary washing device when the nozzle is not washed.

FIG. 3 is a sectional view of a main part of the nozzle for a sanitary washing device at the time of washing.

FIG. 4 is a cross-sectional view of a conventional sanitary washing device nozzle when it is not washed.

[Explanation of symbols]

 1 Main Body 3 Hot Water Tank 7 Nozzle Main Body 7a Jet Port 7b Piston 7c Water Inlet 8 Cylinder 8a Water Inlet 9 Spring 10 Lid 10a Nozzle Guide 11 Jet Water Channel

Claims (1)

[Claims] 1. A sanitary washer nozzle that attaches a hot water tank (3) to a body (1) of a toilet bowl and sprays wash water from the hot water tank (3) locally when cleaning a local area A nozzle body (7) provided with an outlet (7a), a piston (7b) and a water inlet (7c) in the rear part, which projects into the body (1) at the time of cleaning, and the nozzle body (7) can be moved back and forth. A holding cylinder (8) is provided, and a water supply port (8a) communicating with the inside of the cylinder (8) and the nozzle body (7) is provided on the rear end side of the side surface of the cylinder (8).
A lid (10) is provided so as to seal the rear end of the cylinder (8), and a nozzle guide (10a) fitted into the jet water channel (11) of the nozzle body (7) is provided inside the lid (10). A nozzle for a sanitary washer characterized in that a spring (9) for urging the nozzle body (7) in the backward direction is further provided on the front side inside the cylinder (8).