JP2519879Y2 - Flexible drainage joint for drain gutter - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible water stop joint for a tubular drain gutter made of concrete or the like.

[0002]

2. Description of the Related Art Normally, when installing a drainage gutter pipe, if the length of the gutter pipe body is lengthened, it will be adversely affected by uneven settlement of the ground, earthquake, contraction of concrete, etc. Is provided. As this joint, an inner joint having flexibility is used, and generally, the outer surface of the joint is surrounded by a reinforced concrete collar fixed to one gutter pipe body.

[0003]

In the case of the outer collar type water shutoff joint in the conventional drain gutter pipe, cracks are apt to occur due to stress concentration in the vicinity of the collar, and in the drain gutter pipe allowing the subsidence of the ground. , The subsidence of the gutter pipe body is suppressed, and with the subsidence of the surrounding ground, a cavity may be created in the ground below the gutter pipe body, and the drainage gutter pipe may be unevenly subsided. In addition, there is a drawback in that muddy water enters between the collar and the gutter tube body slidably inserted into the collar and solidifies, and the solidified product hinders the refractivity of the joint part of the gutter tube body. There is.

[0004]

In order to advantageously solve the above-mentioned problems, in the flexible water shutoff joint of the drain gutter pipe of the present invention, tubular drain gutters arranged in series at intervals. Tube 1
Rubber outer water stop fitting 2 over the outer peripheral surface at the end of
The rubber outer waterproof joint 2 is provided with a hard plate 4 having a width wider than the joint gap 3 of the adjacent drainage gutters 1 in the middle portion, and the fixing flat plate portions 5 on both sides in the width direction. A bending portion 6 for expansion and contraction is provided between the rigid plate 4 and each of the fixing flat plate portions 5 is superposed on the outer peripheral surface of each drainage gutter pipe 1, and a belt-shaped holding metal fitting 7 is provided on the surface of the fixing flat plate portion 5. And the holding metal fittings 7 are attached by the bolts 8 that are locked to the drain gutter pipes 1.
The fixing flat plate portions 5 are fixed to the outer peripheral surface of the drainage gutter pipe 1 via.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 10 to 12 show a rubber outer waterproof joint 2 used in an embodiment of the present invention.
On both sides of the plate-shaped intermediate plate 9 in the width direction, the fixing flat plate portions 5 are continuously provided via the U-shaped expansion / contraction bending portions 6 to form the soft rubber outer waterproof joint body 10, and Intermediate plate 9
A hard plate 4 made of a hard rubber plate or a metal plate is embedded and fixed in the inside of, and at the side edge portion of the surface of the fixing flat plate portion 5,
Protrusions 11 for engaging the holding metal fittings are provided, reinforcing fibers 12 made of a synthetic fiber woven fabric are embedded over the fixing flat plate portions 5, the expansion / contraction bending portions 6, and the intermediate plate 9, and A large number of grooves 13 extending in the width direction of the intermediate plate 9 are provided on the back surface which abuts the outer surface of the drain gutter 1.

1 to 9 show a flexible drainage joint of a drainage gutter using the rubber outer water-stopping joint 2, wherein a concrete drainage gutter 1 made of a quadrangular cylinder is jointed. Rubber outer water stop joints 2 are wound around the outer peripheral surfaces of adjacent drainage gutter pipes 1 with a gap 3 therebetween, and cutouts 14 are provided at both ends of the rubber outer water stop joints 2. The notches 14 at both ends of the rubber outer waterproof joint 2 are fixed to the adhesive.

The hard plate 4 is omitted at a position facing the corner of the drain gutter pipe 1, and the hard plate 4 is arranged so as to face the outer surface of each drain gutter pipe 1 on both sides of the joint gap 3. The holding metal fitting 7 made of a strip-shaped metal plate is brought into contact with the surface of each fixing flat plate portion 5, and a large number of locking holes 15 are provided on the outer surface side of the drainage gutter pipe 1, and the locking holes 15 are engaged with each other. A stopper cylinder 16 and a bolt 8 having a truncated cone portion 17 to be engaged with the locking cylinder 16 are inserted, and the bolt 8 is formed in the through hole of the fixing flat plate portion 5 and the through hole of the holding metal fitting 7. The fixing flat plate portion 5 of the rubber outer waterproof joint 2 is clamped and fixed to the outer peripheral surface of the drainage gutter pipe 1 by the nut 18 which is inserted and screwed into the bolt 8.

In carrying out the present invention, the bolt inserted through the through hole of the holding metal fitting 7 and the flat plate portion 5 for fixing is attached to the drain gutter pipe 1.
It is screwed into the female screw member embedded in the
May be fixed to the drain gutter pipe 1 by tightening.

[0009]

According to the present invention, the rubber outer water stop coupling 2 is arranged over the outer peripheral surface of the end portion of the cylindrical drain gutter pipes 1 arranged in series at intervals, and the rubber outer water stop joints 2 are arranged. The water joint 2 is provided with a hard plate 4 wider than the joint gap 3 of the adjacent drain gutters 1 in the middle portion, and expands and contracts between the fixing flat plate portions 5 and the hard plate 4 on both sides in the width direction. Each of the drainage gutter pipes 1 is provided with a bending part 6 for fixing, and each flat plate part 5 for fixing is superposed on the outer peripheral surface of each drainage gutter pipe 1, and a band-shaped holding metal fitting 7 is arranged on the surface of the fixing flat plate part 5. Each of the fixing flat plate portions 5 via the pressing metal fittings 7 by the bolts 8 locked to the
Since it was fastened and fixed to the outer peripheral surface of the drainage gutter pipe 1, it is possible to prevent muddy water from entering the joint gap 3 of the adjacent drainage gutter pipes 1 by a simple means, and further, to prevent the rubber outer water stoppage. Since the hard plate 4 is fixed to the middle portion of the joint 2,
There is no risk that the middle portion of the rubber outer waterproof joint 2 will enter the joint gap 3 of the adjacent drainage gutter pipes 1, and the fixing plates on both sides of the hard plate 4 and the rubber outer waterproof joint 2 in the width direction. Part 5
Since the bending portion 6 for expansion and contraction is provided between and, it is possible to freely allow the bending of the joint portion between the adjacent drainage gutter pipes 1 due to earth pressure and the change in size of the joint gap 3 due to temperature change. it can.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing a drain gutter having a flexible water shut off joint according to an embodiment of the present invention.

FIG. 2 is a side view of the portion shown in FIG.

FIG. 3 is a vertical sectional front view showing a corner portion of a flexible water shutoff joint of a drainage gutter pipe according to an embodiment of the present invention.

4 is a cross-sectional view taken along the line AA of FIG.

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is a vertical cross-sectional side view showing a fixing portion of a rubber outer waterproof joint.

FIG. 7 is a plan view showing a part of a flexible water shutoff joint for a drainage gutter according to an embodiment of the present invention.

8 is a sectional view taken along line CC of FIG.

9 is a cross-sectional view taken along line DD of FIG.

FIG. 10 is a vertical sectional front view showing a rubber outer waterproof joint used in an embodiment of the present invention.

FIG. 11 is a vertical sectional front view showing a part of FIG. 10 in an enlarged manner.

FIG. 12 is a sectional view taken along line EE of FIG. 10;

[Explanation of symbols] 1 drain gutter 2 rubber outer water stop joint 3 joint gap 4 hard plate 5 fixing flat plate portion 6 expansion and contraction bending portion 7 holding metal fitting 8 bolt 9 intermediate plate 10 outer water shutting joint body 11 holding metal fitting Combined ridge 12 Reinforcing fiber 13 Groove 14 Notch 15 Locking hole 16 Locking cylinder 17 Frustum-cone 18 Nut

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Michiaki Mochizuki 134 Miyazaki, Noda City, Chiba Prefecture Ministry of Construction Kanto District Construction Bureau Edogawa Construction Office (72) Inventor Shuji Nakayama 134 Miyazaki, Noda City, Chiba Prefecture Kanto Region Construction Ministry of Construction Bureau Edogawa Construction Office (72) Inventor Souichiro Shimizu 2-7-5 Higashishimbashi, Minato-ku, Tokyo (72) Inventor Shiro Matsumoto 700-70, Atsugi City, Kanagawa Prefecture (56) Reference JP-A-60-80634 (JP, A) JP-A 64-46092 (JP, A)

Claims (1)

(57) [Scope of utility model registration request] 1. A rubber outer water stop joint 2 is arranged over the outer peripheral surface of an end of a cylindrical drain gutter pipe 1 which is arranged in series at intervals, and the rubber outer water stop joints 2 are adjacent to each other. A hard plate 4 having a width wider than the joint gap 3 of the drainage gutter 1 to be fitted is provided at an intermediate portion, and a bending portion 6 for expansion and contraction is provided between the fixing flat plate portions 5 on both sides in the width direction and the hard plate 4. , The fixing flat plate portions 5 are superposed on the outer peripheral surface of the drain gutter pipes 1, and the band-shaped pressing metal fittings 7 are arranged on the surface of the fixing flat plate portions 5, and the bolts are locked to the drain gutter pipes 1. A drainage gutter pipe flexible water stop joint in which each fixing flat plate portion 5 is clamped and fixed to the outer peripheral surface of the drainage gutter pipe 1 by means of the pressing metal fittings 7 by means of 8.