JPH0682183U - Flexible drainage joint for drain gutter - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a flexible drainage gutter pipe water stop joint that prevents mud water from entering from the outside of the gutter pipe at the joint part of the drainage gutter pipe and has flexibility. [Structure] A rubber outer waterproof joint 2 is arranged on an outer peripheral surface of an end portion of the drain trough pipes 1 arranged at intervals, and the outer waterproof joint 2 is a seam gap 3 of adjacent drain trough pipes 1. A hard plate 4 having a wider width than that of the fixed plate 5 is provided in the middle part, and expansion / contraction bent parts 6 are provided between the fixed plate parts 5 on both sides in the width direction and the hard plate 4, and each of the fixed plate parts 5 is fixed. Along the outer peripheral surface of each drainage gutter pipe 1, a band-shaped pressing metal 7 is arranged on the surface of the fixing flat plate portion 5, and a bolt 8 locked to each drainage gutter pipe 1 is provided.
Thus, each fixing flat plate portion 5 is clamped and fixed to the outer peripheral surface of the drainage gutter pipe 1 via the pressing metal fitting 7.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a flexible water shutoff joint for a tubular drainage gutter made of concrete or the like.

[0002]

[Prior art]

 Normally, when installing a drainage gutter pipe, if the extension of the gutter pipe body is lengthened, it will be adversely affected by uneven settlement of the ground, earthquake, contraction of concrete, etc. Therefore, a joint is provided for each certain reference length. . As this joint, a flexible inner surface joint is used, and the outer surface of the joint portion is generally surrounded by a reinforced concrete collar fixed to one gutter pipe body.

[0003]

[Problems to be solved by the device]

 In the case of the conventional outer collar type water shutoff joint in the conventional drain gutter pipe, cracks are likely to occur near the collar due to stress concentration, and in the drain gutter pipe that allows the subsidence of the ground, There is a possibility that the drainage gutter pipe may be unevenly submerged due to the formation of a cavity in the bottom part of the gutter pipe body as the ground subsidence is suppressed. In addition, it is said that muddy water enters and solidifies between the color and the gutter tube body slidably inserted in the color, and the solidified matter impedes the refraction of the joint part of the gutter tube body. There are drawbacks.

[0004]

[Means for Solving the Problems]

 In order to advantageously solve the above-mentioned problems, in the flexible water shutoff joint of the drainage gutter pipe of the present invention, the outer peripheral surface of the end portion of the cylindrical drainage gutter pipes 1 arranged in series at intervals. A rubber outer water stop joint 2 is disposed over the rubber outer water stop joint 2, and the rubber outer water stop joint 2 is provided with a hard plate 4 wider than the joint gap 3 of the adjacent drain gutter pipes 1 in the middle portion and has a width. An expansion / contraction bent portion 6 is provided between the fixed flat plate portion 5 and the hard plate 4 on both sides in the direction, and each fixed flat plate portion 5 is superposed on the outer peripheral surface of each drainage gutter pipe 1 and fixed. A strip-shaped press fitting 7 is arranged on the surface of the flat plate portion 5, and each fixing flat plate portion 5 is fixed to the drain gutter pipe 1 via the press fitting 7 by a bolt 8 locked to each drain gutter pipe 1. Tighten and fix to the outer peripheral surface.

[0005]

【Example】

 10 to 12 show a rubber outer waterproof joint 2 used in an embodiment of the present invention, in which U-shaped elastic bending portions 6 are provided on both sides of a plate-shaped intermediate plate 9 in the width direction. A flat plate portion 5 for fixation is continuously provided via the above to form an outer water stop joint body 10 made of soft rubber, and a hard plate 4 made of a hard rubber plate or a metal plate is embedded inside the intermediate plate 9. A fixing metal fitting engaging protrusion 11 is provided on the side edge portion of the surface of the fixing flat plate portion 5 and extends over the fixing flat plate portion 5, each expansion / contraction bending portion 6, and the intermediate plate 9. A plurality of grooves 13 extending in the width direction of the intermediate plate 9 are provided on the back surface of the intermediate plate 9 that is in contact with the outer surface of the drainage gutter pipe 1. Has been.

1 to 9 show a flexible water shutoff joint of a drain gutter using the rubber outer water stop joint 2, wherein a concrete drainage gutter 1 made of a quadrangular cylinder is jointed. Rubber outer waterproof joints 2 are wound around the outer peripheral surfaces of adjacent drainage gutters 1 arranged in series with a gap 3 therebetween, and cutouts 14 are provided at both ends of the rubber outer waterproof 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 faces 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, 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 A locking cylinder 16 and a bolt 8 having a frustoconical portion 17 to be engaged with the locking cylinder 16 are inserted, and the bolt 8 has a through hole of the fixing flat plate portion 5 and a through hole of the holding metal fitting 7. The fixing flat plate portion 5 of the rubber outer side water shut-off joint 2 is tightened and fixed to the outer peripheral surface of the drainage gutter pipe 1 through the holding metal fitting 7 by the nut 18 screwed into the bolt 8 and the bolt 8. Has been done.

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

[0009]

[Effect of device]

 According to the present invention, the rubber outer waterproof joint 2 is arranged over the outer peripheral surface of the ends of the cylindrical drain gutters 1 arranged in series at intervals. A hard plate 4 wider than the seam gap 3 of the adjacent drain gutters 1 is provided in the middle part, and a bending portion 6 for expansion and contraction is provided between the fixing flat plate parts 5 and the hard plate 4 on both sides in the width direction. The fixing flat plate portion 5 is superposed on the outer peripheral surface of each drainage gutter pipe 1, and the band-shaped pressing metal 7 is arranged on the surface of the fixing flat plate portion 5 and is locked to each drainage gutter pipe 1. Since each fixing flat plate portion 5 is clamped and fixed to the outer peripheral surface of the drainage gutter pipe 1 by the bolts 8 via the pressing metal fitting 7, the seam gap 3 of the adjacent drainage gutter pipes 1 is formed by a simple means. It is possible to prevent muddy water from entering, and at the middle part of the rubber outer waterproof joint 2, a hard plate Is fixed, there is no risk that the middle part of the rubber outer water-stop joint 2 will enter the joint gap 3 of the adjacent drain gutter pipes 1, and the width of the hard plate 4 and the rubber outer water-stop joint 2 will be small. Since the bending portions 6 for expansion and contraction are provided between the flat plate portions 5 for fixing on both sides in the direction, the joints of the adjacent drainage gutters 1 are bent by the earth pressure and the seam gap 3 due to the temperature change. You can freely accept changes in size.

[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.

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

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.

12 is a cross-sectional view taken along the line EE of FIG.

[Explanation of symbols]

 1 Drain pipe 2 Rubber outer waterproof joint 3 Seam gap 4 Rigid plate 5 Flat plate for fixing 6 Bending part for expansion / contraction 7 Holding metal fittings 8 Bolts 9 Intermediate plate 10 Outer water joint fitting body 11 Protrusions for pressing metal fittings 12 Reinforcement Fiber 13 Groove 14 Notch 15 Locking hole 16 Locking cylinder 17 Frustum cone part 18 Nut

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toru Koike 700-1 Kizaki Ichi-cho, Hitachiota-shi, Ibaraki Prefecture Kanto District Construction Bureau Hitachi Construction Office (72) Inventor Michiaki Mochizuki 134 Miyazaki, Noda-shi, Chiba Kanto Regional Construction Bureau, Ministry of Construction, Edogawa Construction Office (72) Inventor Shuji Nakayama 134 Miyazaki, Noda, Chiba Prefecture No. 7-5 (72) Inventor Shiro Matsumoto 700-70 Tomuro, Atsugi, Kanagawa

Claims (1)

[Scope of utility model registration request] 1. A rubber outer water stop joint 2 is arranged over an outer peripheral surface of an end portion of a cylindrical drain gutter pipe 1 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 in 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.