JPH0155834B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Technical Field of the Invention The present invention relates to a cable conduit,
The present invention relates to a rail support device that supports a rail for running a conduit laying trolley for laying conduits such as water pipes, gas pipes, sewer pipes, etc.

(b) Background of the technology In Japanese Patent Application Laid-Open No. 128811/1983 and others, the applicant runs a conduit laying cart along a rail provided above the laid pipe, and installs a cable conduit into the laid pipe. We have proposed a method of laying the rails, but if a rail to support the cart is provided at the top of the pipe, the problem is how to support the rail with respect to the pipe.

Normally, installation bolt holes for connecting fittings for connecting pipes to each other are provided in the laid pipes at an appropriate pitch such as 90° pitch, but the most effective method is to use engagement means such as these bolt holes. Common. However, it is not known in what form the laying pipes will be buried underground, and therefore it cannot be said that the phases of the engaging means of adjacent laying pipes will always match, but rather, it is more common for the phases to be out of sync. It is.

In addition, laying heavy pipes so that the phases of their engaging means match will unnecessarily increase the number of work hours on site, and it is not appropriate to lay them in phase positions that are out of phase with each other. It has been desired to develop a rail support device that can install a rail at the top of a pipe that has been laid.

(c) Object of the Invention In order to eliminate the above-mentioned drawbacks, the present invention provides a rail support device that can easily lay a rail on the top of a laying pipe even if the phases of the engaging means of the laying pipe do not match. The purpose is to provide the following.

(d) Structure of the invention That is, the present invention has a base plate capable of engaging with an engaging means provided on a laid pipe, a guide means is provided on the base plate in the inner circumferential direction of the laid pipe, and the guide means In addition, a rail support mechanism provided with a rail holding means capable of holding the rail is provided so as to be movable and fixed along the inner periphery of the laying pipe.

(e) Embodiments of the invention Hereinafter, embodiments of the invention will be specifically described based on the drawings.

FIG. 1 is a front view showing one embodiment of the rail support device according to the present invention, FIG. 2 is a schematic diagram showing a pipeline installation site where the rail support device according to the present invention is used, and FIG. 3 is the same as FIG. An enlarged view showing the details of the rail support mechanism in the rail support device, FIG.
A sectional view taken along the - line in the figure, Figure 5 is the first
6 is a sectional view taken along the - line in FIG. 5, FIG. 7 is a front view showing the joint bar, FIG. 8 is a perspective view showing the rail connection state, and FIG. 9 is a rail connection. It is a front view which shows a part.

As shown in FIG. 2, the pipeline installation site 1 has a shaft 3 dug from the ground 2, and from the shaft 3, cylindrical construction pipes 5 are connected to each other in the horizontal direction. It is installed 17 times underground. Near the connection part of the laying pipe 5, that is, the laying pipe 5
As shown in FIG. 1, bolt holes 5a serving as engagement means are provided near both ends of the
They are installed at a 90° pitch, and each laying pipe 5
A rail support device 6 according to the invention is provided on the top of the rail support device 6 . As shown in FIG. 1, the rail support device 6 has a base plate 7 formed along the inner circumferential surface 5b of the installation pipe 5, and at both ends of the base plate 7, as shown in FIG. A total of four bolt insertion holes 7a are drilled, two each. Further, as shown in FIG. 6, the base plate 7 has a pedestal 7b formed in the center thereof in contact with the installation pipe 5 in a direction perpendicular to the plane of the paper in the figure, that is, in the longitudinal direction of the base plate 7.
Guide rails 7c, 7c are similarly formed in the longitudinal direction of the base plate 7 on both sides thereof. The rail support mechanism 9 is provided along the guide rail 7c so as to be movable in the direction of the arrows A and B in FIG.
a, 9a. Each rail holder 9a is
As shown in FIGS. 3 and 4, the rail engagement groove 9
It has a pair of holding plates 9c formed with the shape b, and each holding plate 9c has two screw holes 9e.
are connected by a connecting plate 9d which is threaded through the connecting plate 9d. Furthermore, brackets 9f, 9f are formed at the upper part of each rail holder 9a in FIG. 4, and bolt holes 9g, 9g are screwed through the rail holders 9a, as shown in FIG. Further, joint bars 22, 22 are provided between each rail holder 9a, 9a.
The bolts 10 screwed into each bolt hole 9g are inserted into the bolt holes 2 drilled on both sides of the joint bar 22.
2a and an elongated hole 22b. Therefore, the elongated hole 22b allows the rail holder 9a on the right side of FIG. It is possible to move along the arrows A and B directions.

In addition, the rail holding space 23 of the rail support mechanism 9
A rail 11 configured by connecting a plurality of rail members 11 _X and 11 _Y is fitted and supported,
As shown in FIG. ₈ , two guide plates 11a are welded to the web end of one of the connected rail members 11 A web insertion space 11b protrudes forward in the figure between the guide plates 11a and 11a.
is formed. In addition, the adjacent rail member 11
Connecting plates 15 and 16 are welded and connected to the upper flanges of _X and 11 _Y so as to face each other, and the connecting plate 15 has a protrusion 15a, and the connecting plate 16 has the protrusion 15a fitted and engaged. A recess 16a is formed that can be used.

Since the conduit installation site 1 has the above configuration, in order to lay a conduit in the conduit 5 buried underground 17, first install a pipe for carrying the conduit into the conduit 5. It is necessary to lay rails 11 to support the road-laying trolley. As shown in FIG. 2, only one rail 11 is provided at the top of the laying pipe 5 in the direction of arrow C in FIG. 2, which is the laying direction of the laying pipe 5. Attach the rail support device 6.

The rail support device 6 is installed by screwing the bolts 13 into the bolt holes 5a of the installation pipes 5 through the four holes 7a of the base plate 7. It varies depending on the condition and is not consistent. Therefore, on the guide rail 7c of the base plate 7,
Rail support mechanism 9 engaged movably in direction B
is moved with the base plate 7 sandwiched between the bracket 9f and the connecting plate 9d, and the center CL of the rail 11 supported by the rail engaging groove 9b of each opposing rail holder 9a, 9a is aligned with the top of the laying pipe 5. Adjust to match. In this way, when the positioning of the rail support mechanism 9 with respect to the base plate 7 is completed, the bolt 25 screwed into the connecting plate 9d of the rail holder 9a on the left side in FIG. Fix it. Then, the rail holder 9 on the right side of FIG.
Only a can move within a certain range in the A and B directions. In this way, one rail holder 9a of all the rail support mechanisms 9 of the installation pipe 5 is fixed, and the other rail holder 9a is made movable, and then the rail holder 9a is moved to the far right in FIG. The rails 11 formed by the engagement grooves 9b of the pair of opposing holding plates 9c are inserted and set. The rail 11 expands the rail holding space 23, and in the expanded rail holding space 23,
Once set in the rail holding space 23 from the bottom of FIG. 3, move the other rail holder 9a, which had been moved to the far right in the figure, in the direction A along the elongated hole 22b to hold the rail. Narrowing the space 23 and moving the rail 11 into the rail holding space 23,
Therefore, it is held between the engagement grooves 9b, 9b. When the rail holder 9a on the right side of FIG. 3 has moved in the direction A enough to hold the rail 11, tighten the bolt 25 on the connecting plate 9d of the rail holder 9a to move the rail holder 9a against the base plate 7. and securely support the rail 11 with respect to the installation pipe 5.

In this way, no matter where the bolt holes 5a of the installation pipe 5 are located, by moving the rail support mechanism 9 along the base plate 7, the center CL of the rail 11 can be easily positioned at the top of the installation pipe 5. It can be maintained in a consistent form.

Note that the rail members 11 _X , which constitute the rail 11,
As shown in FIG. 8, the connection between 11 _Y is a web insertion space 11b consisting of guide plates 11a, 11a provided at the end of one rail member _11X .
Insert the web of the other rail member _11Y into the connecting plate 1 of the rail member _11X .
This is done by inserting and engaging the protrusion 15a of No. 5 into the recess 16a of the connection plate 16 of the rail member _11Y .
As shown in FIG. 9, the protrusions 15a and recesses 16a of the connecting plates 15, 16 protrude above the flanges 11c of the opposing rail members 11 _y , 11 _x , so the rail members 11 _x , 11 _Y They are connected to each other without shifting in the vertical direction in FIG. In this state, the rail members 11 _X and 11 _Y may be welded together, but the rail members 11 _X and 11 _Y
Since the rail members ₁₁
1 When _Y is connected, its own weight will easily cause E,
Since there is no movement in the F direction, there is no practical problem even if the guide plates 11a, 11a and the connecting plates 15, 16 are engaged only without welding.

In this way, as shown in FIG. Carriage 20, wheels 2
0a to the rail 11 so as to be engaged with it as shown in FIG. 21 is pushed along the rail 11 in the direction of arrow C, and the conduit 21 is laid into the installation pipe 5. When the installation of the conduit 21 into the installation pipe 5 is completed, the installation pipe 5 is filled with concrete (containing only cement) and the conduit 21 is fixed inside the installation pipe 5.

(f) Effect of the Invention As explained above, according to the present invention, the base plate 7 can be engaged with the engagement means such as the bolt hole 5a provided in the laying pipe 5 via the bolt 13 or the like.
A guide rail 7 is provided on the base plate 7 in the inner circumferential direction of the laying pipe 5 (i.e., in the direction of arrows A and B).
A rail support mechanism 9 provided with a rail holding means such as a rail holder 9a capable of holding the rail 11 is movably fixed on the guide means along the inner circumference of the installation pipe 5. Therefore, no matter what phase the installation pipe 5 is laid in, the engagement means such as the bolt holes 5a provided at an even angular pitch on the inner circumferential surface 5b can be arranged in the base plate 7. By moving the rail support mechanism 9 along the guide means, the rail 11
It becomes possible to accurately set the rail 11 at the top of the laying pipe 5, and the work of laying the rail 11 can be carried out smoothly without increasing the number of man-hours on site.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the rail support device according to the present invention, and FIG. 2 is a schematic diagram showing a pipeline installation site where the rail support device according to the present invention is used.
3 is an enlarged view showing details of the rail support mechanism in the rail support device of FIG. 1, FIG. 4 is a sectional view taken along the - line in FIG. 3, FIG. The figure is in Figure 5-
7 is a front view showing the joint bar, FIG. 8 is a perspective view showing how the rails are connected, and FIG. 9 is a front view showing the connecting portion of the rails. 5... Laying pipe, 5a... Engaging means (bolt hole),
5b...Inner peripheral surface, 6...Rail support device, 7...
Base plate, 7c...Guide means (guide rail), 9...Rail support mechanism, 9a...Rail holding means (rail holder).

Claims (1)

[Claims] 1. A rail support device that is attached to and supported by a laying pipe with a plurality of engaging means provided on the inner circumferential surface of the laying pipe via the engaging means, which includes a base plate that can engage with the engaging means provided on the laying pipe. a guide means is provided on the base plate in the inner circumferential direction of the laid pipe, and a rail support mechanism provided with a rail holding means capable of holding the rail is moved along the inner circumference of the laid pipe. A rail support device that can be fixed freely.