JP2530823Y2 - Connection structure between flush toilet and washing pipe - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure of a flush pipe for supplying flush water to a flush toilet to a toilet body.

[0002]

2. Description of the Related Art Wash water is supplied to a flush urinal by connecting a flush pipe from an external water supply source to a flush water flow path inside a toilet body. For this connection, since the toilet body is made of ceramic with a large processing error, a structure is generally used in which a spud is inserted into the connection port opened in the toilet body and packing is installed between the outer periphery of the spud and the connection port. Has been adopted.

FIG. 8 is a longitudinal sectional view of a main part showing an example of a conventional connection structure for a washing pipe.
A connection port 51 communicating with a is opened to the back side, and a spud 52 is fitted therein together with a packing 53. Both the tip of the spud 52 and the connection port 51 have a tapered shape.
a by screwing a nut 54 onto the spud 52.
The spud 52 is fixed to the toilet body 50 using the taper fitting of the connection port 51 with the spout 52. Further, a washing pipe 55 connected to a pipe of a building or the like is connected to the spud 52 by a cap nut 56 to form a washing water flow path to the internal flow path 50a.

FIG. 9 shows another example, in which a thin washing tube 57 is connected to a spud 52 by a cap nut 58.

In any of these examples, it is necessary to secure the seal of the packing 53 by strengthening the taper fitting between the spud 52 and the connection port 51, and at the same time, firmly fix the spud 52 to the toilet body 50. It is. For such a connection, the operation procedure is to move the spud 52 to the right side in the drawing to strengthen the taper fitting, and this is to tighten the cap nuts 56 and 58 so that the washing pipes 55 and 57 have a margin. It is done by raising work.

[0006]

[Problem to be solved by the invention] However, the spud 5
If the core of the cleaning tube 57 is displaced from the core of the second or the cleaning tube 57 is inclined, it is very difficult to connect to the spud 52. This is because the spud 52 is fixed to the connection port 51 by taper fitting, and once fitted, the attitude of the spud 52 cannot be changed. Therefore, in actual construction, the position with the spud 52 is adjusted by forcibly tilting or bending the cleaning pipe 57. However, when the washing pipe 57 is tilted, the cap nuts 56, 5
The seal packed around the inside of the cleaning pipe 57 and sealing around the washing pipe 57 may cause uneven contact or the like, resulting in poor sealing.

As described above, the conventional connection structure has a problem that not only the construction is difficult, but also there is a risk of water leakage due to poor sealing even after the construction.

The problem to be solved in the present invention is that the connection between the washing tube and the spud can be made simple and can be made under a good seal, so that water leakage or the like does not occur .

[0009]

According to the present invention, one end of a spud is arranged so as to be able to be taperedly fitted together with a packing for sealing at a connection port for supplying washing water opened in a toilet body, and the spud is moved out of the connection port. A connection structure in which a nut is screwed into a protruding portion, and further, a washing pipe is connected to the other end of the spud by piping, wherein the spud can be inserted into a pipe end of the washing pipe in a watertight manner, An adjusting port having an inner diameter larger than the outer diameter of the spud insertion portion is formed at the pipe end. Also, the spud is inserted into the washing tube
Notch that runs in the circumferential direction on the outer peripheral surface of the
Provide a slit that is cut out so that the notch faces out.
The retainer that is inserted into the lit and fits into the notch
The washing pipe and the spud can be restrained from each other.
You may.

[0010]

When the spud is inserted into the washing tube in a watertight manner, the washing tube can be swiveled to some extent around its axis with respect to the spud by the adjusting port provided at the end of the washing tube. Therefore, even if the core of the cleaning pipe is displaced with respect to the spud, or the cleaning pipe is inclined so that the axis of the cleaning pipe intersects with the spud, the adjusting port can absorb the deviation between the spud and the cleaning pipe and connect them to each other. To facilitate. Also, make sure that water is
The notches in the densely inserted spuds are
The axial movement of each of the cleaning tube and spud is restricted.
It is. For this reason, the spud and the washing tube are connected via a holder.
Joining eliminates both of them. Therefore, the holder
The connection between the washing tube and the spud can be easily performed by simply inserting
Continued work can be performed.

[0011]

FIG. 1 is a longitudinal sectional view showing a main part of a connection structure of a water supply pipe to a toilet according to the present invention, and FIG. 2 is a cross sectional view of the main part. A description will be given of a water supply pipe when an automatic cleaning system is incorporated in the back.

3 and 4, a chamber 1b having a lid 1a is formed at the upper end of the toilet body 1, and a valve unit 2 such as an automatic flush valve is incorporated in the chamber 1b. This valve unit 2 opens and closes a flow path in response to a signal from a sensor 2 a using infrared light or the like provided on the front surface of the toilet body 1. In preparation.
The washing pipe 3 is fixed using a connection port 4 communicating with the internal flow path 1c of the toilet body 1, and a spud 5 is inserted into the connection port 4 for this fixing as shown in FIGS. ing.

The spud 5 has a tapered portion 5a at one end corresponding to the taper of the connection port 4, and a packing 6 is incorporated around the tapered portion 5a so as to seal between the tapered portion 5a and the inner peripheral surface of the connection port 4. Be incorporated. A male screw 5b is formed following the tapered portion 5a, and a distal end portion is a joining portion 5c inserted into the inside of the washing tube 3, and a distal end portion of the joining portion 5c is fitted on the inner periphery of the washing tube 3. Packing 5 that fits tightly
d is attached. Two notches 5e running in the circumferential direction are cut in the circumferential surface of the male screw 5b side of the packing 5d so as to face the joining portion 5c in the radial direction.

Since the spud 5 is to be incorporated into the ceramic toilet body 1 produced, the outer diameter of the tip of the tapered portion 5a is slightly smaller than the inner diameter of the smallest portion of the connection port 4. Insert into 4. The periphery of the opening of the connection port 4 is sealed by the auxiliary packing 7, and the nut 8 is screwed into the male screw 5 a of the spud 5, thereby forming the tapered portion 5 a and the packing 6.
The spud 5 is fixed to the connection port 4 by taper fitting between the connection port 4 and the inner peripheral wall of the connection port 4.

On the other hand, the distal end of the washing pipe 3 into which the joint 5c of the spud 5 is inserted is formed as an adjusting port 3a having an inner diameter slightly larger than the outer diameter of the joint 5c. For this reason, when the joining portion 5c is inserted into the cleaning pipe 3 as shown in FIGS. 1 and 2, the packing 5d at the distal end portion fits and adheres to the inner periphery of the cleaning pipe 3, but is not in contact with the adjustment port 3a. The joint 5c is somewhat free in the radial direction. Therefore,
The spud 5 and the washing pipe 3 can be freely connected even when the axes thereof cross each other, for example, and when the spud 5 and the washing pipe 3 are joined, a connection that absorbs the displacement of each other is possible. is there. The packing 5d is connected to the joint 5c.
, The backlash between the spud 5 and the washing pipe 3 can be prevented with the packing 5d as a fulcrum.

Two slits 3b are formed in the outer peripheral wall of the adjusting opening 3a at positions corresponding to the cutouts 5e of the spuds 5 to be joined in the circumferential direction. These slits 3b are opened by penetrating the peripheral wall of the adjustment opening 3a, and the notches 5 of the spud 5 are passed through the holder 9 shown in FIG.
By constraining e, it is used to hold the spud 5 and the washing tube 3 so as not to come off.

The holder 9 is made of a suitable material such as a metal plate. As shown in FIG. 5, two arms 9a are formed at the lower end in a bifurcated manner, and a spud is formed between these arms 9a. 5 has a shape slightly smaller than the outer diameter of the joint 5c. At the upper end of the holder 9, a handle 9b used for removal work is formed in a hook shape.

In the above configuration, the connection operation between the spud 5 and the washing pipe 3 is performed in the following manner. First, the spud 5 is inserted into the connection port 4 in the manner described above, and the spud 5 is fixed to the toilet bowl 1 by the nut 8 together with the packing 6 and the auxiliary packing 7. Next, the joint 5c of the spud 5 is inserted into the washing tube 3 and the packing 5d is inserted until the packing 5d comes into close contact with the inner wall of the washing tube 3.

In this insertion operation, since the inner diameter of the adjusting port 3a at the tip of the cleaning pipe 3 is larger than the outer diameter of the joint 5c of the spud 5, the cleaning pipe 3 and the spud 5 are not aligned with each other. Even if the arrangement is such that the axes intersect or the axes intersect, joining that absorbs these is possible. That is, when the distal end of the joint 5c enters the cleaning pipe 3, the inner diameter of the adjusting port 3a is large, so that even if the joint 5c and the cleaning pipe 3 have an axis that intersects, the inside of the adjusting port 3a. The joint 5c can behave to some extent freely.
Therefore, the spud 5 and the washing tube 3 can be joined without changing the posture of the spud 5 or the height and direction of the washing tube 3.

The joint 5c of the spud 5 is inserted into the washing pipe 3 by a predetermined amount, and when the notch 5e and the slit 3b substantially coincide with each other as shown in FIG. Plug in. FIG. 6 is a view for explaining this operation. When the cleaning pipe 3 is sandwiched between the arms 9 a at the lower end of the holder 9, these arms 9 a enter the slits 3 b of the cleaning pipe 3. Therefore, the arm 9a fits into the notch 5e of the joint 5c of the spud 5 as shown in FIG. 2 while passing vertically through the slit 3b. Therefore, the arm 9a is constrained by the notch 5e so that the spud 5 does not move in the axial direction, whereby the spud 5 and the washing pipe 3 are integrated without being removed.

In order to prevent the handle 9b of the holder 9 from coming off, a screw or the like is passed through the handle 9b and fixed at an appropriate position. Also, the joint 5 of the spud 5
The notch 5e provided on the outer circumference of c may be formed by forming a groove on the entire circumference of the joining portion 5c instead of partially providing it at two places as shown in FIG.

Thus, the spud 5 and the washing tube 3 can be connected only by inserting the holder 9 into the slit 3b of the washing tube 3. For this reason, it is not necessary to turn a tool as compared with the conventional method using a cap nut or the like, so that the spud 5 can be easily connected to a small work space in the chamber 1b. The attachment / detachment work of the washing tube 3 can be performed. Also, even if you do not tighten with a cap nut,
The flow path between the washing pipe 3 and the spud 5 is reliably sealed by the packing 5d in the joint 5c, and the packing is not cut off by excessively turning the cap nut.

FIG. 7 shows another embodiment, in which a spud 5 is connected to a washing tube using a cap nut as in the prior art. The same members as those described above are designated by the same reference numerals, and detailed description thereof will be omitted.

In the figure, a spud 5 connects a connector 10 coaxially by screwing, seals each other with a gasket 10a, and a packing 11 is attached to an outer peripheral surface of the connector 10. On the other hand, the washing tube 12 is shown in FIG.
Is a short pipe protruding from the valve unit 2, and has a male screw 12a cut into the end of the pipe.
The cap nut 13 for restraining and holding the screw is screwed. An adjusting port 12b is formed on the inner periphery of the distal end of the cleaning tube 12 so as to be larger than the outer diameter of the connector 10 so that the connector 10 can freely swing with respect to the cleaning tube 12.

Also in this configuration, when the cleaning tube 12 is inserted into the connector 10 of the spud 5, the adjustment port 12b
Accordingly, the washing tube 12 can be swung to a certain degree with respect to the spud 5, and can be easily connected even if the core of the washing tube 12 is displaced from the spud 5 or the respective axes intersect. Even when the cap nut 13 is tightened, the packing 11 does not come into close contact with the inner peripheral wall of the washing pipe 12 and does not eccentrically contact, so that the seal is well maintained.

[0026]

[Effect of the Invention] In the present invention, the packing provided on the outer periphery of the spud is fitted so as to enter into the washing tube, and the spud and the washing tube twist each other at the end of the washing tube. An adjustment port having an enlarged inner diameter is provided so that even if it accompanies it, it can be absorbed and fitted. For this reason, for spuds that cannot be changed in posture due to being restrained by the toilet body,
Even if the core of the washing tube is displaced or inclined, the washing tube can be easily connected to the spud, which facilitates the construction.
In addition, the packing comes into close contact with the inner peripheral wall inside the washing tube,
A uniform sealing pressure can be maintained regardless of the connection strength between the spud and the washing pipe, and accidents such as water leakage can be prevented. Change
In the invention according to claim 2 of the present application, the holder is attached to the cleaning tube.
Just insert into the slit to prevent the spud and washing tube from coming off
The cap nut can be used as usual
Work can be done easily with one touch compared to when using
You. Also, since it is not necessary to rotate the tool at all,
Even when the connection between the pad and the washing tube is
As long as there is a gap into which the tools can be inserted, work can be performed without difficulty.
Ideal, for example, when incorporating an automatic cleaning mechanism into the toilet body
It is.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a main part of a connection structure of a water supply pipe to a flush toilet of the present invention.

FIG. 2 is a transverse sectional view showing a main part of FIG.

FIG. 3 is a diagram showing an example in which the toilet body is provided with an automatic cleaning system.

FIG. 4 is a diagram showing a connection portion between a flush tube and a toilet body in the automatic flush system.

FIG. 5 is a diagram showing details of a holder.

FIG. 6 is a schematic exploded perspective view showing the joining of the cleaning tube and the spud by the holder.

FIG. 7 is a longitudinal sectional view of a main part showing another connection structure using a cap nut.

FIG. 8 is a diagram showing a connection structure of a washing pipe in a conventional automatic washing system.

FIG. 9 is a diagram showing another example of a conventional connection between a spud and a washing tube.

[Explanation of symbols]

 Reference Signs List 1 toilet body 1c internal flow path 2 valve unit 3 washing pipe 3a adjustment port 3b slit 4 connection port 5 spud 5a taper part 5b male screw 5c joint part 5d packing 5e notch 6 packing 7 auxiliary packing 8 nut 9 holder 9a arm 10 connector DESCRIPTION OF SYMBOLS 11 Packing 12 Cleaning pipe 12a Male screw 12b Adjustment opening 13 Cap nut

Claims (2)

(57) [Scope of request for utility model registration] 1. An end of a spud is arranged at a connection port for washing water supply opened in a toilet body so as to be able to be taperedly fitted together with a packing for sealing, and a nut is provided at a portion where the spud comes out of the connection port. A connection structure for screwing and further connecting a cleaning pipe to the other end of the spud, wherein the spud can be inserted into the pipe end of the cleaning pipe in a watertight manner, and an inner diameter is provided at a pipe end of the cleaning pipe. A connection structure between a flush toilet and a washing pipe, wherein an adjusting port having an inner diameter larger than an outer diameter of an insertion portion of the spud is formed. 2. A part where the spud is inserted into a washing tube.
A notch running in the circumferential direction on the outer peripheral surface of
Provide a slit that is cut out so that the notch faces outside,
The insert that is inserted into the slit and fits into the notch
The washing tube and the spud can be restrained to each other by holding tools
The flush toilet and flush according to claim 1, characterized in that:
Pipe connection structure.