JPH0139817Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Subject of the Invention] The present invention relates to a nozzle for a human body private parts cleaning device, and more specifically, to the mounting position of a valve that opens after the nozzle reaches a predetermined position. be.

[Prior art]

In a human body private part cleaning device, a nozzle is extended to a predetermined position when in use, and a valve installed in the nozzle is opened to spray hot water onto the human body private part. This has been well known for a long time,
For example, it is disclosed in Japanese Patent Application Laid-Open No. 52-8639. That is, as shown in FIG. 1, a cylinder C is fixed in a hot water tank B of a human body private parts cleaning device A, and a cylinder C is held at a predetermined position by pressure applied to a piston D. A nozzle E that extends up to 100 mm is inserted. A valve H is installed between the through hole F of the piston D and the rear end of the hollow part G of the nozzle E, and this valve H opens when the nozzle E extends to a predetermined position. Hot water is spouted toward the private parts of the human body through a hole I formed in a radially outward direction at the front end of E. In addition, the valve H is the piston D
A valve body K is slidably mounted on the piston D, a valve seat L is formed on the piston D, and the valve body K is stretched between the nozzle E and the valve body K so that the valve body K is always in contact with the valve seat L. It consisted of a spring M that biases the

[Problems with conventional technology and its technical challenges]

However, the hot water is supplied from the tap water into the hot water tank B and is heated by the heater J, but since the tap water contains dust and iron, these things are mixed with the valve body K. The sealing properties of the valve H were sometimes deteriorated due to adhesion between the valve seat L and the valve seat L. Therefore, when the nozzle E moves back and forth, the valve H is slightly opened, and hot water is sprayed onto other parts of the human body and clothing. If such a situation occurs, the valve body K must be removed from the nozzle E, the valve body K and the valve seat L must be cleaned, and sometimes the valve body K must be replaced. Since the nozzle E had to be removed from the cylinder C in order to remove the valve body, the nozzle E had to be removed from the cylinder C, which was a hassle.

[Technical issues]

Therefore, the object of the present invention is to enable the valve body to be removed from the nozzle without removing the nozzle from the cylinder.

[Technical means]

The technical measures taken to solve the above technical problem include a nozzle with an opening at the tip, a plurality of jet ports bored in the front part of the nozzle, and a blind screwed onto the opening at the tip of the nozzle. a plug, and a valve mounted on the front part of the nozzle, the valve being fixed to a valve body slidably mounted on the blind plug, and a rear part of the nozzle from the spout port. The valve seat and
The present invention includes a spring that is stretched between the blind plug and the valve body and biases the valve body so that it always comes into contact with the valve seat.

[Effect of technical means]

The above technical means works as follows. That is, by removing the blind stopper from the nozzle, the biasing force applied to the valve body by the spring can be released, and the valve body can be removed from the nozzle. Thereby, it is not necessary to remove the nozzle, and the valve body can be easily removed from the nozzle by simply removing the blind plug.

[Special effects produced by the present invention]

The spring can be replaced with the simple task of removing the blind plug, so it can respond to changes in the pressure applied to the valve due to differences in the water circuit installed between the valve and the water pipe. It can be easily replaced with a spring with a biasing force that matches changes in pressure, and the pressure of hot water spouted from the spout can be easily maintained constant.

〔Example〕

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

Rear wall 1 of toilet bowl 11 of human body private parts cleaning device 10
A large-diameter hole 13 and a small-diameter hole 14 are formed in the cylinder 2, and the rear end portion of a first cylinder 16 is fixed to the large-diameter hole 13 through an O-ring 15 in a fluid-tight manner. A large diameter portion 18 of a retainer 17 is fitted into the rear end opening of the first cylinder 16, and a small diameter portion 19 of the retainer 17 is fitted liquid-tightly into the small diameter hole 14 via an O-ring 20. There is.

Reference numeral 21 denotes a first piston, which is fluid-tightly and slidably fitted into the first cylinder 16 via an O-ring 22, and there is a back pressure between the rear surface of the first piston 21 and the retainer 17. A chamber 23 is defined. Hot water is supplied to the back pressure chamber 23 through a passage 24 formed in the wall 12 and communicating with a hot water tank (not shown), and the first piston 21 is heated by the pressure in the second piston 23 (not shown). It is designed to be slid to the right. Therefore, the first piston 21 has an O-ring 25 at the front part of the first cylinder 16.
The first piston 21 and the stopper 26
A first spring 27 is stretched between the two.

Further, a flange 26a protrudes from the stopper 26 toward the first piston 21, and this flange 26a restricts the maximum stroke of the first piston 21.

28 is a second cylinder whose rear end is screwed into the inner peripheral part of the first piston 21, and the front end of the second cylinder 28 passes through the stopper 26 and is connected to the first piston 21.
It extends in front of the cylinder 16. Therefore, the second piston 29 is inside the second cylinder 28.
are fluid-tightly and slidably fitted via O-rings 30 and 31. A stopper 34 is fluid-tightly fixed in front of the second cylinder 28 via an O-ring 32, and a second spring 33 is disposed between the stopper 34 and the second piston 29.
is installed. The forward stroke of the second piston 29 is caused by the flange portion 34 of the stopper 34.
It is regulated by a. In addition, the first piston 21 and the second
A back pressure chamber 35 is defined between the piston 29 and the rear surface thereof.

36 is a nozzle, and its rear end is a second piston 29
The front end of the nozzle 36 extends further forward than the front of the second cylinder 28 . Further, a rear end portion of a valve 38 is fixed to a hole 37 in a small diameter portion 19 of the retainer 17.
A pipe 38 extends within the nozzle 36. Nozzle 3
A clearance 39 is formed between 6 and the pipe 38. Therefore, the back pressure chamber 35 has a wall 1
Hot water is supplied through a passage 40, a pipe 38, and a clearance 39 formed in 2 and communicating with a hot water tank, and the nozzle 36 is slid to the right in the 2nd figure by the pressure. ing.

On the wall in front of the nozzle 36 are jet ports 41, 41',
41" is bored, and a valve seat 42 is provided on the rear side.
is fixed. Thus, the valve seat 42 has a central through hole 42a and a tapered seat 42b that expands in the front direction of the nozzle 36. Hemispherical valve body 4 seated on this tapered seat 42b
3 forms a valve 51 in cooperation with the valve seat 42 and has a shaft portion 44, which is connected to the nozzle 3.
It is loosely fitted into the shaft portion 46 of a blind stopper 45 that closes the opening of 6. Therefore, the stepped portion 47 of the blind plug 45
A spring 49 is stretched between the valve body 43 and the boundary portion 48 between the valve body 43 and the shaft portion 44, and urges the valve body 43 toward the tapered seat 42b. Also,
Spout ports 41, 41', 41'' and shaft 46 of blind plug 45
The clearance between them is uniform, and the height of the washing water spouted from the spout ports 41, 41', 41'' is made to be equal.In addition, a groove 50 is formed in the radially outward direction of the blind plug 45. This groove 50
By inserting a screwdriver or the like (not shown) and rotating it, the blind plug 45 can be removed, and the spring 49 and valve body 43 can be taken out of the nozzle 36 while leaving the nozzle as it is.

To describe the operation of the above configuration, when hot water is supplied only to the passage 40, the hot water is supplied to the pipe 3.
8, is sent to the clearance 39 and the back pressure chamber 35, and first moves the second piston 29 and nozzle 36 forward until the second piston 29 comes into contact with the flange 34a. Thereafter, the valve 51 is opened and hot water is sprayed from the spout ports 41, 41', 41'' to the shower position (not shown) in the private parts of the human body.

Next, when hot water is supplied to the passage 40 and the passage 24, the first piston 21 and the second cylinder 2
8 moves forward as one. After the first piston 21 contacts the flange 26a, the second piston 29 and the nozzle 36 are integrated into the second
The piston 29 moves forward until it comes into contact with the flange 34a. After that, the valve 51 is opened and hot water is poured from the spout to the bidet position (not shown) in the private parts of the human body.
It is squirted.

Even if the sealing performance of the valve 51 deteriorates due to sand and iron rust contained in water adhering to the surface of the valve body 43 due to long-term use, the nozzle 36 can be connected to the second cylinder by removing the blind plug 45. The valve body 43 can be easily taken out without being removed from the valve body 28. In addition, the jetting pressure of hot water spouted from the jetting ports 41, 41', 41'' must be adjusted by a water circuit (not shown) interposed between the passages 24 and 40 and the water supply. If not, spring 4
If only 9 is replaced as appropriate, the adjustment can be made easily.

Furthermore, the spout ports 41, 41', 41'' and the blind plug 45
Since the clearance between the hot water and the shaft portion 46 is uniform, the height of the hot water spouted from the spout ports 41, 41', and 41'' is uniform.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional human body private part cleaning device, and FIG. 2 is a sectional view of an embodiment of the human body private part cleaning device according to the present invention. 36...nozzle, 41, 41', 41''...spout port, 42...valve seat, 43...valve body, 45...blind plug, 49...spring, 51...valve.

Claims (1)

[Scope of utility model registration request] It has a nozzle with an opening at the tip, a plurality of jet ports bored in the front part of the nozzle, a blind plug screwed into the opening at the front end of the nozzle, and a valve attached to the front part of the nozzle. and the valve is arranged between a valve body slidably mounted on the blind plug, a valve seat fixed to a rear part of the nozzle from the spout, and a gap between the blind plug and the valve body. 1. A nozzle for a human body private part cleaning device, comprising a spring that is stretched over the valve body and biases the valve body so as to constantly contact the valve seat.