JPH09125500A - Connection structure of water supply pipe for toilet seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily connect pipes, by connecting a branch cock and a flexible hose with a one-touch-detachable quick connection member having an elastic fitting piece. SOLUTION: A low tank connection pipe 11 is connected to the upper face of a branch cock 7 through a box nut 17. And when an insertion pipe 12b of a connection part 12 is inserted in a projected pipe 19 provided at the side face of the branch cock 7, it can be rotatably connected by an axial seal structure of an O-ring 20 and the collar 12a of the insertion pipe 12b is set to contact the collar 19a of the projected pipe 19. A pair of guide flaps 23c are arranged to contact the projected pipe 19 and the outer periphery of the connection part 12. And when a quick connection member 23 is pushed down from the upper side, a pair of elastic fitting pieces 23b are widened outward and fitted to the outer peripheral parts of the projected pipe 19 and the connection part 12 and the collars 12a, 19a are fitted in the fitting groove M. And further, a flexible hose is rotatably connected to the insertion part of the other end of the connection part 12, by using the axial seal structure of the O-ring.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as shown in the perspective view of FIG. 4, a toilet bowl main body 1 is provided with a local cleaning device body 2, and the toilet seat 3 and the toilet lid 4 are openably and closably attached to the local cleaning device body 2. Is installed, a low tank 5 is erected at the rear of the toilet body 1, and a water supply pipe 6 is projected from the side wall surface of the toilet. The water supply pipe 6 is connected to a water pipe. Water is supplied from the water supply pipe 6 to the branch plug 7
Through the hose 8 side and the low tank connection pipe 11 side, the tip of the hose 8 is connected to the socket 9 protruding from the local cleaning device main body 2, and tap water is supplied to the local cleaning device main body 2 side through the hose 8. In the conventional case, as shown in the enlarged view of FIG. 5, the hose 8 is connected to the branch plug portion 7 with the connecting portion 12 interposed therebetween.
The tip of the connecting portion 12 is connected to the branch plug portion 7 with the cap nut 10
Are tightly connected to each other, and a packing is put in the cap nut 10 to ensure the sealing property. As described above, in the conventional case, the hose 8 is attached to the branch plug 7 by the cap nut 10.
Must be connected, and when the operation of tightening the cap nut 10 with a tool at an installation place in an extremely narrow toilet, the tool cannot be turned and the operation may be difficult. In addition, it is necessary to put packing in the cap nut 10, and the cap nut 10 is easily loosened, and there is a problem that water leakage may occur if the cap nut 10 is loosened due to stress such as twisting of the hose 8. .

[0003]

The present invention has been devised in view of the above-mentioned problems of the prior art, and can be connected very easily without using a tool, and the rotation of the hose is allowed. The first gist of the present invention is to provide a pipe connection structure, and a first aspect thereof is a toilet bowl in which water supply from a water pipe is introduced from a branch plug section through a flexible hose to a local cleaning device on the toilet body, The connection with the flexible hose is made by a one-touch detachable quick connection member having a fitting elastic piece. In addition, a second gist is that a connecting portion is interposed between the branch plug portion and the flexible hose, and the connecting portion and the branch plug portion are rotatably coupled by an O-ring shaft seal structure,
The connecting part and the flexible hose are also rotatably connected by a shaft seal structure by O-ring. The third gist is that the one-touch detachable quick connection member is used for a connecting portion between the connecting portion and the branch plug portion and a connecting portion between the connecting portion and the flexible hose, respectively. Further, a fourth gist is that, in each of the connecting portions of the branch plug portion and the flexible hose with respect to the connecting portion, one connecting portion is connected by the one-touch detachable quick connecting member and the other connecting portion is connected. The part is to make a fitting and killing connection by a C ring.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective configuration diagram showing a connection state of a branch plug portion in a water supply pipe, FIG. 2 is a half sectional configuration diagram of the connection state, and FIG. 3 is an exploded perspective view before connection. In the figure, a water pipe (not shown) is buried in the wall surface of the toilet and connected to a water supply pipe 6 protruding from the wall surface. A water stop plug 14 is provided at the tip of the water supply pipe 6. A branch plug portion 7 is arranged so as to be connected above the water supply pipe 6, and a water stop plug 15 is provided at the tip of the branch plug portion 7, and a side surface of the branch plug portion 7 is provided. Is provided with a drain plug 16 for draining water. In addition, a makeup cap 13 is provided on the protruding portion of the water supply pipe 6 from the wall surface for makeup treatment.

A low tank connecting pipe 11 is connected to the upper surface of the branch plug portion 7 through a cap nut 17, and the low tank connecting pipe 11 connects the upper end to the low tank 5 shown in FIG. A projecting tube 19 is provided on the side surface of the branch plug section 7 opposite to the water draining plug 16 as shown in FIGS. 2 and 3, and the outer diameter of the projecting tube 19 is enlarged at the tip thereof. The collar portion 19a is formed. The connecting portion 12 connected to the protruding tube 19 is formed of an L-shaped tube in this example,
An O-ring 20 is fitted on the outer circumference of the insertion pipe portion 12b at the tip of the connection portion 12, and the insertion pipe portion 12b is formed with a flange portion 12a protruding outward. Further, an insertion portion 12c is formed on the other end side of the connection portion 12, and the C ring 21 is formed on the inner circumference of the insertion portion 12c.
A C-ring groove 12d for fitting the is formed.

The tip of the flexible hose 8 can be inserted and connected in the insertion portion 12c. In this example, as shown in FIG. 2, the tip of the flexible hose 8 is inserted. The O-ring 22 is provided on the outer periphery of the portion 8a.
Is externally fitted, and the C ring 2 is previously attached to the outer periphery of the insertion portion 8a.
When the insertion portion 8a is inserted into the insertion portion 12c of the connection portion 12 with the insertion member 1 interposed, the C ring 21 is inserted into the insertion portion 1
The O-ring 22 is fitted into the C-ring groove 12d on the inner periphery of 2c, and in this fitted state, the O-ring 22 is elastically attached to the inner peripheral surface of the insertion portion 12c to be sealed, that is, the O-ring 2
A shaft seal structure through 2 is adopted. In the state where the C ring 21 is fitted in the C ring groove 12d, the insertion portion 8 of the flexible hose 8 is no longer inserted from the insertion portion 12c.
It is not possible to extract a, and a so-called fitting-and-killing connection is made. The flexible hose 8 cannot be pulled out due to the fitting and connection, but the flexible hose 8 is allowed to rotate with respect to the insertion portion 12c within a horizontal plane.

On the other hand, when the insertion tube portion 12b on the other end side of the connecting portion 12 is inserted into the projecting tube 19 of the branch plug portion 7, it is sealed by the O-ring 20 and is connected by the O-ring 20 by the shaft sealing structure. In this connected state, the flange portion 12a of the insertion tube portion 12b comes into contact with the flange portion 19a of the projecting tube 19, and the flange portion 19a and the flange portion 12a are formed to have substantially the same diameter. The portions 19a and 12a are flush with each other and are brought into contact with each other. In this state, the quick connecting member 23 as shown in FIG.
The quick connecting member 23 allows the connecting portion 12 to be connected to the projecting tube 19 by one-touch fitting into the a and 12a, and in the connected state, the shaft by the O-ring 20 as described above. Due to the seal structure, the connecting portion 12 is rotatable in a plane perpendicular to the branch plug portion 7.

The quick connecting member 23 faces the base portion 23a in a bifurcated manner and is fitted with elastic pieces 23b, 23b.
Are integrally formed, and at the lower end of each fitting elastic piece 23b, guide pieces 23c and 23c that are inclined and spread outward are integrally formed. From the guide piece 23c to the fitting elastic piece 23b. An engagement groove M is formed in the shape of a long hole in the up-and-down direction across the pair of guide pieces 23c, 23.
By bringing c into contact with the outer peripheries of the projecting tube 19 and the connecting portion 12 and pressing the quick connecting member 23 from above, the pair of fitting elastic pieces 23b, 23b spread outward, and the projecting tube 1
9 and the outer periphery of the connecting portion 12, the collar portions 19a, 12a are fitted in the engagement groove M in this state, and the quick connecting member 23 is fitted to the collar portions 19a, 12a with one touch. Attach the projecting tube 19 and the connecting part 12
Connection can be completed, and the quick connecting member 23 can be easily pulled up to facilitate the fitting elastic piece 2
3b spreads outward and can be pulled out, which is extremely easy to put on and take off.

As described above, in this example, the insertion tube portion 12b side of the connection portion 12 is connected by the quick connection member 23, and the distal end of the flexible hose 8 is connected to the other end side insertion portion 12c side by the C ring 21. In the field, as shown in FIG. 3, the flexible hose 8 side is connected to the branch plug portion 7 with one touch through the quick connection member 23.
Since the conventional cap nut is not used, there is no work to tighten with a tool in the field, and the connection work can be performed very easily even in a narrow space.

The flexible hose 8 has a branch plug 7
On the other hand, since the flexible hose 8 can be rotated in a vertical plane and in a horizontal plane, the flexible hose 8 can be appropriately displaced even when the toilet body 1 is installed in the toilet, and conversely, the flexible hose 8 is not twisted. Branch plug 7 even if it occurs
No stress is applied to the hose, and the twisting of the hose can be prevented satisfactorily. Furthermore, after installation, the local cleaning device body 2 and the toilet seat 3 and the toilet lid 4 are removed from the toilet body 1 for cleaning. In such a case, the flexible hose 8 can be moved to a free position, and no stress is applied to the branch plug portion 7 at this time, and the work can be performed very easily. .

In cold regions, the branch plug 7
May be installed on the floor of the toilet, and particularly in such a case, the flexible hose 8 can be easily rotated upward with respect to the branch plug portion 7 to displace and move the flexible hose 8 at a free position. Therefore, the installation and cleaning work of the local cleaning device body 2 are extremely easy.

In this example, one end of the connecting portion 12 is connected by the quick connecting member 23, and the C ring 21 is connected to the other end.
Although the example in which the fitting and killing connection is adopted is shown, both ends of the connecting portion 12 may be connected by the quick connecting member 23, that is, the quick connecting member 23 is used for connecting the flexible hose 8 and the connecting portion 12. Can be a configuration,
Even with such a configuration, since the flexible hose 8 is allowed to rotate in the horizontal and vertical planes with respect to the branch plug portion 7,
It is extremely easy to handle. In addition, the connection part 1
A similar connection structure can also be adopted when the water stopcock 15 or the water drainage tap 16 is provided in 2.

[0013]

INDUSTRIAL APPLICABILITY The present invention relates to a toilet bowl in which water from a water pipe is introduced from a branch plug section through a flexible hose into a local cleaning device on a toilet bowl body by fitting a connection between the branch plug section and the flexible hose. By using the one-touch detachable quick connection member that has a synthetic elastic piece, the work of tightening with a conventional cap nut can be omitted, and the connection work can be completed very easily even in a narrow space without using tools etc. Has the effect that can.

A connecting portion is interposed between the branch plug portion and the flexible hose to rotatably connect the connecting portion and the branch plug portion with an O-ring shaft seal structure, and the connecting portion and Since the flexible hose is also rotatably connected by an O-ring shaft seal structure, it can freely rotate because it has an O-ring shaft seal structure and is flexible in a horizontal plane and a vertical plane with respect to the branch plug portion. Can be freely displaced,
This has an effect of being able to favorably perform work such as attachment of the main body of the local cleaning device and removal during cleaning.

Further, the one-touch detachable quick connecting members are used for the connecting portion between the connecting portion and the branch plug portion and the connecting portion between the connecting portion and the flexible hose, respectively, so that There is an effect that the connection of the connection portion and the connection of the flexible hose to the connection portion can be performed very easily by the quick connection member without using a tool.

Further, at each connecting portion of the branch plug portion and the flexible hose with respect to the connecting portion,
Since the connecting portion on one side is connected by the one-touch detachable quick connecting member, and the connecting portion on the other side is fitted and killed by the C-ring, one side can be connected by one-touch by the quick connecting member and branched. Even if the flexible hose is displaced in the horizontal or vertical plane with respect to the plug, no stress is applied to the branch plug, and the hose is prevented from twisting, and the local cleaning device is installed and removed for cleaning. It has an effect that the work of can be performed extremely easily.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a flexible hose is connected to a branch plug via a quick connection member.

FIG. 2 is a half cross-sectional configuration diagram of the connection state of FIG.

FIG. 3 is an exploded perspective view before connection.

FIG. 4 is an overall perspective configuration diagram of a conventional toilet bowl.

FIG. 5 is an enlarged view of a main part in a connected state using a conventional cap nut.

[Explanation of symbols]

 1 Toilet body 2 Local cleaning device body 3 Toilet seat 6 Water supply pipe 7 Branch plug part 8 Flexible hose 8a Insertion part 11 Low tank connection pipe 12 Connection part 12a Collar part 12b Insertion pipe part 12c Insertion part 12d C ring groove 14,15 Stop Water tap 16 Drain tap 19 Projection tube 19a Collar portion 20,22 O-ring 21 C-ring 23 Quick connection member

Claims (4)

[Claims] 1. In a toilet bowl in which water from a water pipe is introduced from a branch plug section through a flexible hose into a local cleaning device on a toilet bowl body, the branch plug section and the flexible hose are connected by a fitting elastic piece. A water supply pipe connection structure for a toilet, characterized in that it is made with a one-touch detachable quick connection member. 2. A connection part is interposed between the branch plug part and the flexible hose to rotatably connect the connection part and the branch plug part with a shaft seal structure by an O-ring, and to the connection part. The water supply pipe connection structure for a toilet according to claim 1, wherein the flexible hose is also rotatably connected by an O-ring shaft seal structure. 3. A connecting portion between the connecting portion and the branch plug portion, and a connecting portion between the connecting portion and the flexible hose,
The water supply pipe connection structure for a toilet according to claim 2, wherein each of the one-touch removable quick connection members is used. 4. In each connecting portion of the branch plug portion and the flexible hose to the connecting portion, one connecting portion is connected by the one-touch detachable quick connecting member, and the other connecting portion is C. The water supply pipe connection structure for a toilet according to claim 2, wherein the fitting and killing connection is performed by a ring.