JPH094008A - Mounting structure of washing pipe to sanitary earthenware water supply inlet - Google Patents

Abstract

PURPOSE: To execute mounting work of a washing pipe to a water supply inlet very easily and to make it possible to ensure good seal efficiency to reduce cost. CONSTITUTION: A mounting consturction is constituted of an insertion device 2 inserted into a water supply inlet 1a and a fixing device 3 screwed in the insertion device 2 with a washing pipe 6 kept inserted in the insertion device 2. A split groove M capable of reducing the diameter is formed in the insertion device 2 in the direction of an inside diameter when the insertion device is inserted into the water supply inlet 1a, and an interlocking projection 2d projecting outward and interlocked with the inside of the water supply inlet 1a is formed as the insertion of the projection is over.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a cleaning pipe to a water supply port of sanitary ware such as a toilet bowl.

[0002]

2. Description of the Related Art Since sanitary ware such as toilet bowls and sinks are difficult to perform precision machining of screws and the like in the manufacture of pottery, the connection to the water supply port such as a cleaning pipe is called a spud. I am using metal fittings. Conventionally, as shown in FIG. 5, a tapered water supply port 1 opened at the rear part of the toilet 1
When attaching the cleaning pipe 56 as shown in the half sectional view of FIG. 6, first, the spud main body 51 is attached to the water supply port 1a.
The skirt packing 52 is inserted into the inside from the rear, and then the skirt packing 52 is brought into contact with the outer periphery of the skirt portion 51a at the tip of the spud body 51, and in that state, the spud body 51 is moved rearward and outward with respect to the water supply port 1a, thereby skirt packing. 52 is brought into contact with the inner peripheral surface of the water supply port 1a, and in this state, a rubber packing 53 and a washer 54 are attached to the outer periphery of the spud body 51, and a nut 55 with a flange is tightened on the spud body 51 to form the skirt packing 52.
The spud body 51 is fixed to the water supply port 1a by elastically landing on the inner peripheral surface of the water supply port 1a, and in this state, the cleaning pipe 56 is inserted into the spud body 51 from the outside, and the cleaning pipe on the tip side of the spud body 51 is inserted. A gasket 57 is fitted on the outer periphery of 56, and a sleeve nut 58 is tightened to the spud body 51 from the outside to attach the cleaning pipe 56 to the water supply port 1a.

In such a conventional mounting structure, the skirt packing 52 comes into contact with the inner peripheral surface of the water supply port 1a by friction and is elastically attached. However, the spud body 51 is inserted into the water supply port 1a. After that, it is necessary to engage the skirt packing 52 with the spud body 51 from the outside and further pull out the spud body 51 to move it to the outside.
In many cases, it is difficult to make the skirt packing 52 be elastically attached to the inner peripheral surface of the water supply port 1a, and the construction is troublesome, and if the flanged nut 55 is tightened too much, the skirt packing 52 will not fit in the skirt portion 51a. There is also a case where it comes off from the tip and comes off inside the water supply port 1a of the toilet bowl 1. In such a case, there is a problem that water leaks from the water supply port 1a, making it difficult to tighten and tighten, and the workability is poor. There was a problem. In addition, the sleeve nut 58
Since the gasket 57 is strongly compressed when it is tightened, there is a problem that the sealing property is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in view of the above-mentioned problems of the prior art. It is extremely easy to mount and install, and water leakage does not occur, and the cost of parts can be reduced. The purpose is not to provide a structure for mounting a cleaning pipe to a sanitary ware water supply port, and the gist of this is to mount a cleaning pipe that supplies cleaning water from the outside to the water supply port opened on the sanitary ware. And a fixing tool that is screwed into the insertion tool from the outside while the cleaning pipe is inserted into the insertion tool. Has a split groove that can be reduced in the inner diameter direction when it is inserted into the water supply port, and also has a locking projection that protrudes toward the outer periphery and is locked inside the water supply port when the insertion is completed. That is what is being done.

[0005]

[Function] First, the insertion tool is inserted into the water supply port and fitted therein. At this time, since the split groove is formed in the insertion tool so that the diameter can be reduced in the inner diameter direction, the inner diameter of the insertion tool can be easily reduced. It can be fitted into the water supply port in a closed state, and when it is fitted, the locking projection formed on the insertion tool is locked inside the water supply port, and the insertion tool can be firmly attached to the water supply port with one touch. In this state, insert the washing pipe into the insert tool, screw the fixing tool to the insert tool from the outside, and easily attach the washing pipe to the water supply port with good sealing property. Therefore, it is possible to obtain a mounting structure in which the work can be performed extremely easily, the sealing property can be well ensured, and the number of parts is smaller and the cost is lower than in the conventional case.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a half sectional view of the mounting structure of the first embodiment, and FIG. 2 is a perspective configuration diagram of an insertion tool used in the mounting structure of FIG. In the figure, a water supply port 1a having a tapered shape is formed in advance in the toilet bowl 1, and a resin-made insertion tool 2 can be inserted into and engaged with the water supply port 1a from the outside with one touch. ,
With the insert 2 attached to the water supply port 1a, the insert 2
The cleaning pipe 6 can be inserted from the outside, and in this state, the fixing tool 3 can be screwed onto the insertion tool 2 on the outer peripheral side of the cleaning tube 6 and tightened to attach the cleaning tube 6 to the water supply port 1a. .

First, the structure of the insertion tool 2 will be described. The insertion tool 2 has a cylindrical base portion 2a into which the cleaning pipe 6 can be inserted, the inner diameter of which is the outer diameter of the cleaning pipe 6. It is formed in almost the same size and shape. A male threaded portion 2b is formed on the outer periphery of the base portion 2a, and an engaging portion 2c that is inclined from the threaded portion 2b toward the tip side in a radially expanded manner is formed. The slope is the water inlet 1a
It is formed to have an inclination almost equal to the inclination of the inner circumference. A locking projection 2d is integrally formed on the tip end side of the engagement portion 2c so as to project to the outer peripheral side, and is tapered in a direction in which the locking projection 2d is reduced in diameter toward the tip end side. Two
e is formed, and a tip projecting portion 2f is integrally formed at the tip of the tapered portion 2e so as to project toward the inner diameter side.

Further, the insert 2 is formed with, for example, four dividing grooves M in the vertical direction, and each dividing groove M is formed in the threaded portion 2 described above.
The parallel groove portion Ma that is parallel to the portion b, and the front end side of the parallel groove portion Ma, that is, the engaging portion 2c and the taper portion 2
It is composed of a trumpet-shaped groove portion Mb that spreads in a trumpet shape toward the tip side toward the e side, and the taper portion 2e side of the tip is manually pushed inward through each of the split grooves M to facilitate the tip side. It is possible to reduce the diameter, and when the hand is released, each split groove M is opened to the original state and can be expanded outward, that is, the tip side can be reduced in the inner diameter direction by the plurality of split grooves M. It has elasticity.

Therefore, the tapered portion 2e of the insertion tool 2 can be inserted into the toilet bowl 1 with the diameter reduced from the outside of the water inlet 1a and easily pushed into the inside of the water inlet 1a. Then, the diameter is expanded through the split groove M, and the locking projection 2d abuts the inner side surface of the water supply port 1a as shown in FIG. 1. In this state, the engagement part 2c substantially contacts the inner peripheral surface of the water supply port 1a. In the contact state, the insertion tool 2 can no longer be pulled out from the water supply port 1a in this state, and the insertion state can be favorably maintained. In this state, insert tool 2
On the other hand, by inserting the cleaning pipe 6 into the inner peripheral surface from the outer side, when the cleaning pipe 6 is inserted, the engaging portion 2c is expanded to the outer side and firmly pressed against the inner peripheral surface of the water supply port 1a. Therefore, when the cleaning pipe 6 is inserted, the insertion tool 2 is firmly fixed to the water supply port 1a. In this state, the fixture 3 fitted on the outside of the cleaning pipe 6 is attached to the threaded portion 2b of the insert 2.
Tighten by screwing.

An inner screw 3a which is screwed into the screw portion 2b is formed on the inner peripheral surface of the fixture 3, and an inner projecting piece 3b is integrally formed on the rear end side so as to project to the inner peripheral side. Has become. When the inner screw 3a of the fixture 3 is screwed into the screw portion 2b and tightened, an O-ring 4 is provided outside the water supply port 1a, and a backup ring 7 and an O-ring are provided inside the inner projecting piece 3b. By inserting the ring 5 and tightening the fixture 3 in this state, the insert 2
The locking projection 2b is firmly abutted on the inner surface of the water supply port 1a, and the cleaning pipe 6 is attached to the water supply port 1a in a state where good sealing performance is secured by the O-rings 4 and 5. In addition, the O-ring 5 does not become a compressed state in the tightened state, and a good sealing property is secured.
In addition, the tip of the cleaning pipe 6 and the tip projection 2f of the insertion tool 2
An auxiliary ring can be inserted in the gap S between them to exert a good retaining effect.

As described above, in this embodiment, the insertion tool 2 can be inserted into the water supply port 1a with one touch in a state in which the distal end side of the insertion tool 2 is pressed by hand and the diameter is reduced, and the inserted insertion is performed. Insert the cleaning tube 6 into the tool 2 and insert the tool 2 into the water inlet 1
It can be firmly fixed to the inner peripheral surface of a, and in this state, the fixing tool 3 can be screwed into the insertion tool 2 to ensure good sealing performance, and it is not necessary to perform a troublesome construction work as in the past. ,
The cleaning pipe 6 can be attached and installed very easily, and the number of parts is small and the cost can be reduced as compared with the conventional case.

Next, FIGS. 3 and 4 show a second embodiment. In FIG. 3, the water supply port 1a formed in advance in the toilet bowl 1 is formed in a straight hole shape instead of a taper shape. It is possible to form the water supply port 1a more easily than the conventional one, and the insertion tool 21 is fitted into the straight hole-shaped water supply port 1a from the outside with one touch, and the insertion tool 21 is cleaned. The tube 6 is inserted, and the fixing tool 23 is screwed into the insertion tool 21 from the outside of the cleaning tube 6 and tightened to be attached.

As shown in the perspective view of FIG. 4, the insertion tool 21 in this embodiment has a threaded portion 21b formed with a male screw on the outer circumference of the base portion 21a, and the outer circumference of the tip end side of the threaded portion 21b is recessed. Engaging portion 21c is formed in a circular shape, and a locking projection 21d is formed on the tip side of the locking projection 21d so as to project to the outer peripheral side. The taper portion 21e is formed so as to be inclined, and the tip projecting portion 21 is projected toward the inner diameter side at the tip side thereof.
f is integrally formed.

Further, the insert 21 is formed with, for example, two split grooves M in the longitudinal direction, and the threaded portion 21b is formed with a parallel parallel groove portion Ma, which is continuous with the parallel groove portion Ma. A trumpet-shaped groove portion Mb that spreads in a trumpet shape to the taper portion 21e side is formed to form a split groove M, and the split groove M, M is formed by applying a hand from the outside of the taper portion 21e and pressing it in the inner diameter direction. The insertion tool 2 can be satisfactorily reduced in diameter through the insertion tool 2, and the insertion tool 21 can be easily inserted from the outside into the water supply port 1a of the toilet 1 in the reduced diameter state, and in the inserted state. The diameter of the locking projection 21d is expanded by the elasticity imparted by the split grooves M, M so that the locking projection 21d fits inside the water supply port 1a, and the engaging portion 21c substantially abuts on the inner peripheral surface of the water supply port 1a. And the state is engaged.

In this state, by inserting the cleaning pipe 6 into the insertion tool 21 from the outside, when the cleaning pipe 6 is inserted, the engaging portion 21c is further expanded in diameter to the outside.
c is a member that can firmly come into contact with the inner peripheral surface of the water supply port 1a to obtain a strong fixed state. If an auxiliary ring is inserted in the gap S between the cleaning pipe 6 to be inserted and the tip projecting portion 21f, a good retaining effect of the cleaning pipe 6 can be obtained.

With the insert 21 attached to the water supply port 1a and the washing pipe 6 inserted into the insert 21, the insert 21
A resin fixture 23 is screwed onto the outer side of the. Fixture 23
Has an inner screw 23a formed on the inner peripheral side, an inner projecting piece 23b formed on the rear end side so as to protrude in the inner diameter direction, and a tool hooking portion 23c for hanging a tool such as a spanner formed on the rear outer circumference. It has become a thing. When the fixing tool 23 is screwed, the flat packing 8 is provided on the toilet bowl 1 side, and the O-ring 5 is provided inside the inner projecting piece 23b on the inner peripheral side of the fixing tool 23 to fix the fixing tool 23. The insertion tool 21 can be firmly fixed to the toilet 1 by tightening the tool 23 and pressing the flat packing 8, and the O-ring 5 is not compressed even during this tightening, so that a reliable sealing property is ensured. Will be possible.

As described above, also in this embodiment, the insertion pipe 21 is attached to the water supply port 1a with one touch, the cleaning pipe 6 is further inserted, and the fixing member 23 is further tightened to easily attach the cleaning pipe 6 to the water supply port 1a. Therefore, the work is extremely easy, the workability is better than before, and the number of parts is small and the cost can be reduced.

Although the cleaning pipe 6 is attached to the water supply port 1a of the urinal in this example, the cleaning pipe can be attached to the water supply port of the urinal with the same structure. The cleaning pipe can be attached to the water supply port of other sanitary ware with the same structure.

[0019]

INDUSTRIAL APPLICABILITY The present invention has a mounting structure in which a cleaning pipe is inserted from the outside to a water supply port opened in a sanitary ware, and is a cylindrical insertion tool which is previously inserted into the water supply port and an insertion tool. It is composed of a fixture that is screwed into the insertion tool from the outside in a state where the cleaning pipe is inserted into the insertion tool, and the insertion tool has a split groove that can be reduced in the inner diameter direction when inserted into the water supply port. Since it is formed and has a locking projection that protrudes in the outer peripheral direction and is locked inside the water supply port when the insertion is completed, the insertion tool has a split groove that can be reduced in the inner diameter direction. Since it is formed, it can be easily fitted into the water supply port with the inner diameter of the insertion tool contracted, and when it is fitted, the locking projection formed on the insertion tool is locked inside the water supply port. And firmly attach the insertion tool to the water inlet with one touch. It is possible to insert the cleaning pipe into the insertion tool in this state, and screw the fixing tool to the insertion tool from the outside to easily attach the cleaning pipe to the water supply port while ensuring good sealing property. Can be performed, work can be performed very easily, and good sealing performance can be secured.
Moreover, there is an effect that it is possible to obtain a mounting structure having a smaller number of parts and a lower cost than the conventional one.

[Brief description of drawings]

FIG. 1 is a half cross-sectional configuration diagram showing a mounting structure of a cleaning pipe according to a first embodiment.

FIG. 2 is a perspective configuration diagram of the insertion tool in FIG.

FIG. 3 is a cross-sectional configuration diagram showing a mounting structure for a cleaning pipe according to a second embodiment.

4 is a perspective configuration diagram of the insertion tool in FIG. 3. FIG.

FIG. 5 is an exploded perspective view of a conventional mounting member for a water inlet of a toilet bowl.

FIG. 6 is a half cross-sectional configuration diagram of a conventional mounting structure.

[Explanation of symbols]

 1 Toilet bowl 1a Water inlet 2,21 Insertion tool 2b, 21b Screw part 2c, 21c Engagement part 2d, 21d Locking projection 2e, 21e Tapered part 2f, 21f Tip projection part 3,23 Fixing tool 3a, 23a Internal screw 3b, 23b Inner protrusion 4,5 O-ring 8 Flat packing 23c Tool hooking part M Split groove Ma Parallel groove part Mb Trumpet-like groove part

Claims (1)

[Claims] 1. A mounting structure for inserting and attaching a cleaning pipe for supplying cleaning water from the outside to a water supply opening opened in a sanitary ware, and a cylindrical insertion tool which is inserted into the water supply opening in advance. The cleaning tool is inserted into the insertion tool, and the cleaning tool is screwed into the insertion tool from the outside, and the insertion tool is configured to be capable of contracting in the inner diameter direction when inserted into the water supply port. Mounting of the cleaning pipe on the sanitary ware water supply port is characterized in that the groove is formed and a locking projection protruding in the outer peripheral direction is formed that is locked inside the water supply port when the insertion is completed. Construction.