JPH0643273Y2 - Nozzles for cleaning human body parts - Google Patents

Description

[Detailed description of the device] [Industrial applications]

TECHNICAL FIELD The present invention relates to an improvement of a nozzle for cleaning a human body part attached to a toilet bowl.

[Prior art]

As shown in FIG. 3, there is a toilet bowl 10 in which a human body part cleaning nozzle 1 for cleaning a human body part such as anus is attached to the inner wall 10a of the toilet bowl or the like. This human body part cleaning nozzle 1 is
Some are described in Japanese Utility Model Laid-Open No. 60-53873, the fourth
As shown in the figure, a hollow nozzle rod 2 having front and rear closed ends is housed in a cylinder 3 having a rear end closed 3b with a front end opening 3a so as to be able to move forward and backward. The nozzle rod 2 has an injection hole 2a formed at the front end side and a piston portion 2b formed at the rear end side.
A cleaning water receiving hole 2c is formed on the outer peripheral surface of 2b. The cylinder 3 has a cleaning water inlet 4a of the cleaning water supply pipe 4 in a watertight chamber 3c facing the rear end surface 2d of the piston portion 2b. Also,
The cylinder 3 is provided with a cleaning water supply hole 3e that can match the cleaning water supply hole 2c of the nozzle rod 2 on the peripheral wall 3d near the tip. A branch pipe 5 branched from the wash water supply pipe 4 is connected to the wash water supply hole 3e. Nozzle bar 2 and cylinder 3
A nozzle rod retreating spring 6 fitted on the nozzle rod 2 is arranged between and. The nozzle 1 for cleaning the human body part has a nozzle rod 2 in a cylinder 3.
When the cleaning water is supplied from the cleaning water supply pipe 4 to the watertight chamber 3c in the state where the nozzle is retracted, the nozzle rod 2 is first extruded and the cleaning water receiving hole 2c of the advanced nozzle rod 2 is replaced by the cleaning water supply hole of the cylinder 3. The washing water is supplied into the nozzle rod 2 through the branch pipe 5 in conformity with 3e, and then the washing water is jetted from the jet holes 2a to the human body part such as the anus. Nozzle for cleaning human body part 1
When the human body local cleaning is finished and the supply of cleaning water is stopped, the repulsive elastic force stored in the spring 6 causes the piston rod 2 to automatically retract into the cylinder 3.

[Problems to be solved by the device]

However, the conventional human body part cleaning nozzle 1 has the following problems. (A) The place where the cleaning nozzle 1 is attached is a very narrow place such as inside the toilet body or inside the seat pivot box. However, since the branch pipe 5 is bored on the outside of the cylinder 3 in the cleaning nozzle 1, the branch pipe 5 becomes an obstacle when it is mounted in a narrow place, which makes mounting work difficult. (B) In the cleaning nozzle 1, it is necessary to braze the joint portion in order to prevent water leakage from the joint portion of the branch pipe 5, resulting in high manufacturing cost. (C) The cleaning nozzle 1, when the nozzle rod 2 is moved forward,
Part of the wash water guided to the wash water supply pipe 4 passes through the branch pipe 5 and leaks from the tip opening 3a of the cylinder 3. Therefore, the amount of water supplied to the cleaning nozzle 1 and the watertight chamber 3c decreases,
The nozzle rod 2 cannot be rapidly advanced to the predetermined cleaning position. SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a human body local area cleaning nozzle that does not require a branch pipe.

[Means for Solving the Problems]

The means adopted by the human body local cleaning nozzle according to the present invention (hereinafter, referred to as “the nozzle of the present invention”) is that a hollow nozzle rod whose front and rear ends are closed is housed in a cylinder whose front end is closed and the rear end is closed. The rod has an injection hole on the tip side, a piston part is formed on the rear end side, and a wash water receiving hole is formed on the outer peripheral surface of the piston part.The cylinder is located in a watertight chamber facing the rear end surface of the piston part. In the nozzle for cleaning the human body, where the cleaning water inlet is opened and the spring for retracting the nozzle rod is arranged between the cylinder and the nozzle rod, the cylinder has a cylinder peripheral wall corresponding to the piston portion of the nozzle rod advanced to the washing position. The part is provided with a communication flow path that connects the watertight chamber and the wash water receiving hole.

[Action]

The operation of the nozzle of the present invention will be described based on the embodiment shown in FIGS. 1 and 2. The nozzle 11 of the main idea is that the nozzle rod 12 is retracted into the cylinder 13 (see FIG. 1) and the watertight chamber 13c is inserted from the cleaning water inlet 14a.
When cleaning water is supplied inside, the rear end surface 12d of the piston portion 12b
Is pressed with wash water. The nozzle rod 12 is pushed out as the amount of washing water supplied into the watertight chamber 13c increases, and advances from the inside of the cylinder 13. When the nozzle rod 12 advances to a predetermined cleaning position and stops, as shown in FIG. 2, the communication flow passage 15 provided in the cylinder peripheral wall 13f forms a cleaning water receiving hole 12c of the piston portion 12b and a watertight chamber in the cylinder 13. Contact 13c. Then, in the nozzle 11 of the present invention, the cleaning water supplied into the watertight chamber 13c is connected to the communication channel 15, the cleaning water receiving hole 12c and the hollow channel 12.
It passes through d and jets from the jet hole 12a aiming at a human body part such as anus. When the human body local cleaning ends and the supply of cleaning water is stopped, the nozzle 11 of the present invention automatically retracts the piston rod 12 into the cylinder 13 by the repulsive elastic force stored in the spring 16.

【Example】

Hereinafter, the nozzle of the present invention will be described based on the embodiment shown in FIGS. 1 and 2. The improvement of the proposed nozzle 11 is that the cleaning water receiving hole 12c formed in the watertight chamber 13c in the cylinder 13 and in the piston portion 12b is formed in the cylinder peripheral wall 13f portion corresponding to the piston portion 12b of the nozzle rod 12 advanced to the cleaning position. That is, the communication flow path 15 for communicating with The communication channel 15 includes an annular groove 13h recessed in the outer peripheral surface 13g of the cylinder peripheral wall 13f and through holes 13i, 13 bored in the bottom of the annular groove 13h.
j and an inner peripheral surface 20a of the cap 20 fitted on the cylinder 13 outside. As shown in FIG. 2, the positions of the through holes 13i and 13j are such that when the nozzle rod 12 advances to a predetermined cleaning position and stops, the cleaning water receiving hole 12c and the through hole 13i of the piston 12b.
And the through hole 13j and the watertight chamber 13c in the cylinder 13 communicate with each other. The cap 20 has a tip opening 20b.
The cylinder 13 and screw it 17 toward the tip of the cylinder 13.
The O-rings 18, 18 fitted on the outer surface of 13 are inscribed in a watertight state. The wash water supply pipe 14 joined to the cylinder 13 has a residual water escape pipe 19 connected in the middle thereof. Next, the operation of the nozzle of the present invention will be described. The main nozzle 11 is
The cylinder rod 13 stands by with the nozzle rod 12 retracted (see FIG. 1). When a solenoid valve (not shown) provided in the wash water supply pipe 14 is opened, the wash water is supplied into the watertight chamber 13c via the wash water inlet 14a. The nozzle rod 12 is moved forward while the piston portion 12b is pressed by the supplied cleaning water, compressing the spring 16 externally fitted to the nozzle rod 12, and the stepped portion 12e formed on the nozzle rod 12 is a stopper (not shown). Abut and stop. As shown in FIG. 2, when the nozzle bar 12 is stopped at a predetermined cleaning position, the connecting channel 1 provided on the cylinder peripheral wall 13f
5 connects the wash water receiving hole 12c of the piston portion 12b and the watertight chamber 13c in the cylinder 13. Then, the main nozzle 11
The washing water supplied into the watertight chamber 13c passes through the communication passage 15, the washing water receiving hole 12c and the hollow passage 12d, and is jetted from the jet hole 12a to a human body part such as anus. Wash water supply pipe
When the solenoid valve provided in 14 is closed, the nozzle 11 of the present invention moves the spring 16
The piston rod 12 is automatically retracted into the cylinder 13 by the repulsive elastic force stored in. The residual water in the watertight chamber 13c is discharged into the toilet bowl or the like via the residual water escape pipe 19 and an extension pipe (not shown) connected to the pipe 19 as the piston rod 12 retracts.

[Effect of device]

As described above in detail, the nozzle of the present invention has the following practical effects. Since the nozzle of the present invention does not require the branch pipe provided in the conventional nozzle for cleaning the human body part, there is nothing protruding outside the cylinder. As a result, the nozzle of the present invention can be easily installed even in a narrow space, and the number of installation work steps can be reduced. Since the nozzle of the present invention does not require a branch pipe, the brazing joint portion is eliminated, and the manufacturing cost can be reduced. In the nozzle of the present invention, since the cleaning water is supplied into the cylinder for advancing the nozzle rod and the cleaning water does not leak to the outside, the nozzle rod can be rapidly advanced to the predetermined cleaning position.

[Brief description of drawings]

1 and 2 are vertical cross-sectional views showing an embodiment of the nozzle of the present invention, and FIG. 1 shows the nozzle rod retracted,
FIG. 2 shows a state where the nozzle rod is stopped at a predetermined cleaning position. FIG. 3 is a partially sectional front view of a toilet bowl provided with a conventional human body part cleaning nozzle, and FIG. 4 is a vertical sectional front view showing a conventional human body part cleaning nozzle. 12 ... Nozzle rod, 12a ... Injection hole 12b ... Piston part, 12c ... Wash water receiving hole 13 ... Cylinder, 13c ... Watertight chamber 14a ... Wash water inlet, 15 ... Communication channel 16 ... Spring

Claims (1)

[Scope of utility model registration request] 1. A hollow nozzle rod having front and rear closed ends is housed in a cylinder whose rear end is closed at its front end so as to be able to move forward and backward. An injection hole is formed in the front end of the nozzle rod and a piston portion is provided at the rear end. The cleaning water supply hole is formed in the outer peripheral surface of the piston part, and the cylinder is provided with a cleaning water inlet in a watertight chamber facing the rear end surface of the piston part. In the human body local part cleaning nozzle in which the retreat spring is arranged, the cylinder has a communication passage for connecting the watertight chamber and the cleaning water receiving hole to the cylinder peripheral wall portion corresponding to the piston portion of the nozzle rod advanced to the cleaning position. A nozzle for cleaning a human body part, which is characterized by being provided.