JPH07139679A - Saddle-equipped manhole coupling, and temporarily fixing method thereof - Google Patents

Abstract

PURPOSE:To improve workability by forming stop parts to stop a retraction member from a manhole in a sadle-equipped manhole coupling provided with a saddle. CONSTITUTION:A saddle-equipped manhole coupling 10 is used for connecting a sewage pipe 12 to a manhole 14, and it includes a coupling part 20 having a receiving port 18 having a rubber band 16 on its inner surface. A saddle part 22 curved to be applied along the outer surface of the manhole 14 is formed in the outer surface of the coupling part 20, and plural stop parts 28 are distributed and formed at an end part of the coupling part 20 along the circumference for hooks 26 of a retraction member 24 to be stopped. The retraction member 24 can thus be stopped to the stop parts 28 of the manhole coupling 10 directly for retracting the manhole coupling 10, and the sewage pipe 12 can be connected in the condition where the manhole coupling 10 is temporarily fixed, thereby workability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a manhole joint with a saddle and a temporary fixing method thereof, and more particularly to a manhole joint with a saddle used for connecting a sewer pipe and a manhole and a temporary fixing method thereof.

[0002]

2. Description of the Related Art Referring to FIG. 9, a conventional manhole joint 1 with a saddle of this type includes a joint portion 3 having a socket 2 and a saddle portion 5 abutting against the outer surface of a manhole 4. Then, when the manhole joint 1 is temporarily fixed to the manhole 4, a bonding agent is applied to the inner surface of the saddle portion 5 to position the manhole joint 1 in the opening 6, and wood chips and the like arranged outside and inside the manhole 4. The saddle portion 5 is pressed against the outer surface of the manhole 4 by tightening the support members 7 and 8 of FIG.

[0003]

In the prior art, the work of arranging the support members 7 and 8 outside and inside the manhole 4 and tightening them with the number wire 9 is troublesome, and the support member 7 and the like are removed. Until then, there was a problem that the workability was very poor because a sewer pipe could not be connected to the receiving port 2.

Therefore, a main object of the present invention is to provide a manhole joint with a saddle and a temporary fixing method thereof, which can improve workability.

[0005]

A first invention is a manhole joint with a saddle, wherein a manhole joint with a saddle is provided with an engaging portion for engaging a pulling member from the manhole. . The second invention is the first
Using the manhole joint with a saddle of the invention, the mandrel member with a saddle is locked with a detention member at a locking portion, and the manhole joint with a saddle is fixed to the manhole side to fix the detention member with a manhole. This is a temporary fixing method.

[0006]

Operation: For example, an engaging portion such as an engaging hole is formed at the manhole side end of the joint portion of the manhole joint with a saddle. When temporarily fixing the manhole joint to the manhole, a bonding agent is applied to the inner surface of the saddle portion of the manhole joint, and the manhole joint is positioned at the opening of the manhole. On the other hand, a contracting member is arranged inside the manhole. Then, the pulling member is locked to the locking portion of the manhole joint, and the manhole joint is pulled to the manhole side by the pulling member. Since the receiving port of the manhole joint is open when the manhole joint is temporarily fixed, the sewer pipe can be connected to the receiving port even in the temporarily fixed state.

[0007]

According to the present invention, the manhole joint can be held by locking the pulling member directly to the locking portion of the manhole joint, and the sewer pipe can be connected while the manhole joint is temporarily fixed. Therefore, workability can be dramatically improved. The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A manhole joint 10 with a saddle according to this embodiment shown in FIGS. 1 and 2 has a sewer pipe 1 as shown in FIG.
2, which is used when the manhole 14 and the manhole 14 are connected to each other, and includes a joint portion 20 having a socket 18 in which a rubber ring 16 is attached. A saddle portion 22 is formed on the outer surface of the joint portion 20 so as to be curved along the outer surface of the manhole 14, and an end portion of the joint portion 20 has a pulling member 24 described later.
A plurality of hooks 26 are locked (four in this embodiment)
Locking portions 28 are formed so as to be distributed in the circumferential direction. Further, on the manhole 14 side from the saddle portion 22, the joint portion 20
The outer surface of the is sanded.

The pulling member 24 for temporarily fixing the manhole joint 10 to the manhole 14 includes an annular main body 30 having an inner diameter larger than the outer diameter of the sewer pipe 12 (FIG. 3), as can be seen from FIG. , Around the periphery of the body 30
A plurality (four in this example) of legs 32 for supporting the body 30 in the manhole 14 are formed. In addition, the main body 30 has a locking portion 28 formed on the manhole joint 10.
A plurality of holes (4 in this embodiment) corresponding to
4 (FIG. 3) is provided, and a rod-shaped screw member 36 having a hook 26 formed at its tip is inserted into the hole 34.
Then, a nut (blade nut) 38 is screwed into the screw member 36. Therefore, the distance from the main body 30 to the hook 26 can be adjusted by adjusting the screwing amount of the nut 38. The legs 32 are, as shown in FIG.
It may be formed to extend in the cross direction, or as shown in FIG. 5, it may be formed to be inclined at a predetermined angle with respect to the main surface of the main body 30.

Referring to FIG. 3, when connecting the sewer pipe 12 to the manhole 14, first, the manhole joint 10 is temporarily fixed to the manhole 14. When temporarily fixing, first
A bonding agent is applied to the inner surface of the saddle portion 22, and the manhole joint 10 is positioned with respect to the opening 40 of the manhole 14 such that the inner surface of the saddle portion 22 contacts the outer surface of the manhole 14. On the other hand, the pulling member 24 is arranged inside the manhole 14. Then, the hook 26 of the pulling member 24 is locked to the locking portion 28 of the manhole joint 10, and the nut 38
Screw in. Then, the manhole joint 10 is pulled toward the manhole 14 side, the inner surface of the saddle portion 22 is pressed against the outer surface of the manhole 14, and thus the manhole joint 10 is temporarily fixed to the manhole 14.

After the manhole joint 10 is temporarily fixed in this way, the sewer pipe 12 is connected to the manhole joint 10 and the pipe groove is backfilled. And after the bonding agent hardens,
The pulling member 24 is removed, and the inner surface of the opening 40 and the joint portion 20 are removed.
Fill the gap between the outer surface of the and the mortar with a filler such as mortar. According to this embodiment, the manhole joint 10 can be directly contracted using the locking portion 28, and further, the predetermined sewer pipe can be performed while the manhole joint 10 is temporarily fixed, so that the workability is improved. it can.

Further, since the inner diameter of the main body 30 of the pulling member 24 is made larger than the outer diameter of the sewer pipe 12,
As shown by the chain double-dashed line in FIG.
It is possible to secure a sufficient space for exchanging the sewer pipe 12 inside. In the above-described embodiment, the locking portion 2 is provided at the end of the joint portion 20 of the manhole joint 10.
8 is formed, but such a locking portion 28
From the manhole 14 to the detention member 24 (hook 26)
It suffices if it is formed at a position where the can be locked. Therefore, as shown in FIG. 6, it may be formed on the inner surface of the saddle portion 22 or the like. Further, the locking portion 28 may be formed in a hook shape as shown in FIG.

Further, as a contracting member for contracting the manhole joint 10, for example, a contracting member 44 as shown in FIGS. 6 and 7 may be used. The detention member 44 is a main body 4 having a hole 46 formed in the center thereof for passing the sewer pipe 12.
By operating the lever 50 provided on the main body 48 including the rod 8, the rod member 52 having the hook 26 formed at its tip can be moved back and forth.

[Brief description of drawings]

FIG. 1 is an illustrative view showing one embodiment of the present invention.

FIG. 2 is a right side view of the embodiment shown in FIG.

FIG. 3 is an illustrative view showing a state in which the embodiment of FIG. 1 is temporarily fixed to a manhole.

FIG. 4 is a perspective view showing a contracting member for contracting the embodiment shown in FIG. 1;

FIG. 5 is a perspective view showing a modified example of the binding member.

FIG. 6 is an illustrative view showing another embodiment of the present invention.

FIG. 7 is an illustrative view showing a modified example of the binding member.

FIG. 8 is an illustrative view showing a modified example of a locking portion.

FIG. 9 is an illustrative view showing a conventional technique.

[Explanation of symbols]

 10 ... Manhole joint with saddle 14 ... Manhole 18 ... Receptacle 20 ... Joint part 22 ... Saddle part 24 ... Draw member 26 ... Hook 28 ... Locking part

Claims (2)

[Claims] 1. A manhole joint with a saddle, comprising a saddle and a manhole joint with a saddle, wherein a locking portion for locking the pulling member from the manhole is formed. 2. A manhole joint with a saddle according to claim 1, wherein a detention member is engaged with an engaging portion of the manhole joint with a saddle, and the mandrel joint with saddle is detained toward the manhole side. A method for temporarily fixing a manhole joint with a saddle, which is fixed by the manhole.