JPH034093Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The present invention is a support unit for construction wiring that is useful for supporting various construction wiring inside pipes buried underground, such as protection pipes for cables. Regarding.

<Prior Art> Conventionally, it has often been necessary to repair pipe walls or replace cables by using cutting tools, lighting lamps, etc. inside underground cable protection pipes. Conventionally, when carrying out these works, in order to support the various types of wiring used in the construction work, such as power cords for cutting tools, etc., by hanging them inside the protection pipes, etc., various types of shaped steel were used in the preliminary stages of the construction work. The construction was carried out from the pipe entrance to the target construction site by sequentially connecting and assembling the support frame for the wiring inside the protection pipe, etc.

<Problems to be solved by the invention> However, this type of conventional support frame has a complex structure and is often troublesome to connect and assemble. Most of the items required Furthermore, in the past, support frames or their parts were usually connected to each other by welding, so the arc or gas flame at the tip of the welding torch could burn out various construction wiring, communications, power cables, etc. and cause a fire inside the pipe. It was hot. Once a fire occurs, tools, wiring, etc. are destroyed, protection pipes, etc. are damaged, and in some cases, people may be injured, communications may be cut off, etc.
The power supply will be disrupted, and the damage will be enormous.

Furthermore, conventionally, in construction work inside underground pipes, in order to transport work supplies, rails are often laid inside the underground pipes and a transport trolley is run on the rails. Therefore, the above wiring support frame is
It is required that the structure supports the construction wiring so that it does not become an obstacle to the transportation of work supplies.

The purpose of this invention is to be able to connect and install the device inside underground pipes simply, quickly, and without the risk of fire outbreak, to contribute to improving the efficiency of construction work, and to facilitate the smooth transportation of work supplies. The object of the present invention is to provide a support unit for construction wiring that can be secured.

<Means for Solving the Problems> The construction wiring support unit of the present invention is a pre-assembled frame unit that can be connected and separated within an underground pipe. That is, a base frame equipped with two parallel rails, a presser frame connected upwardly on the base frame so that the two rails form a substantially ring shape, and one set of presser frames removed. unit fixing means that can be expanded inward and contracted inward; an appropriate number of wiring supports attached to the holding frame; and other supporting units formed on both sides of the base frame. The invention is characterized in that it has a bolted connection.

<Function> The support unit of the present invention is first placed inside the underground pipe, and then the approximately annular holding frame, which has been contracted in advance, is expanded outward by the unit fixing means to secure the underground pipe. By pressing against the inner circumferential wall, the device can be fixed inside the buried pipe. That is, it is easy to fix the support unit because it can be completed only by expanding the presser frame. The unit fixing means here may be of a structure that connects two substantially ring-shaped presser frames so that they can be expanded outwardly and contracted inwardly, for example, two adjacent frames of the presser frame. An example of this method is to provide a screw hole in the tip and pass a bolt through the screw hole to connect the frame tip ends.

In addition, by tightening bolts between the connecting part of one supporting unit of the present invention and that of another supporting unit, multiple supporting units can be connected in an underground pipe, and conversely, the connecting bolt can be removed. It is possible to separate the connected support units into individual units. That is, since the method of connecting and separating the support units is by tightening bolts and releasing them, the work is simple and there is no risk of fire occurring.

In addition, in the support unit of this invention, construction wiring,
For example, cutting tools, power cords for lighting lamps, oxygen supply tubes, etc. can be hung and supported on the wiring support attached to the presser frame. in this case,
By adjusting the size, mounting position, etc. of the support, it is possible to prevent the construction wiring from interfering with the transportation of work supplies using the rails at all.

<Example> Embodiments of the present invention will be described below with reference to the drawings.

The support unit 1 of the embodiment shown in FIG. 1 has substantially annular holding frames 3, 3 provided substantially vertically on both ends of a substantially rectangular base frame 2, and a beam frame 4 attached to the holding frames. It is constructed between the tops of 3 and 3. The base frame 2 includes two rails 5, 5 made of parallel angle steel, and the presser frame 3 includes two long and short arc-shaped frames 6.
A and 6b are welded to the base frame 2 as a set to form a substantially ring shape. arcuate frame 6a,
As shown in FIG. 2, the frames 6b are connected to each other by passing bolts 8 through screw holes 7, 7 at the ends of the frames, and by turning the bolts 8 and changing the distance between the ends of the frames 6a, 6b. The pair of presser frames 3 are adapted to expand outward or contract inward. Further, as shown in FIG. 3, the holding frame 3 is constructed by welding three approximately L-shaped rods to the inside of the frame 6a, and attaching wiring supports 9 in three upper and lower stages.

In addition, as shown in Fig. 4a, the foundation frame 2
is a connecting piece 1 having a bolt hole 10 at one end thereof.
1 is attached by welding, and a bolt hole 12 is bored in the other end at a location corresponding to the bolt hole 10. Therefore, as shown in FIG. 4b, one end of one frame 2 is brought into contact with the other end of the other frame 2, and a bolt (not shown) is inserted into the bolt hole 1.
The two support units 1, 1 can be bolted together by tightening them with nuts 0, 12. The support unit 1 also has rails 5, as shown in FIG. 4a.
Connecting pieces 13, 13 of angle iron are respectively attached to the lower surface of one end of the unit 5 so as to protrude, and when the units are connected, as shown in FIG. The other end of the rail of the other unit 1 overlaps the section, and both units 1, 1
The rails 5... are arranged to be continuous.

Next, to explain how to use the support unit 1, first, as shown in FIG. 5, the support unit 1 is installed inside the underground pipe 14, and then the bolts 8,
8 to expand the holding frames 3, 3 and press them against the inner circumferential wall of the buried pipe 14, thereby fixing the support unit 1 inside the buried pipe 14. Next, another support unit 1 is placed next to the previous unit so that the base frames 2, 2 are in contact with each other, and bolts are passed through the bolt holes 10, 12 to connect both support units 1, 1 with bolts. . Thereafter, by sequentially performing similar bolted connections, a large number of support units 1 are connected to the buried pipes 14 as shown in FIG.
connection from the entrance to the target construction site. After that, as shown in Fig. 7, various wiring 15 used for construction work, such as power cords for lighting lamps, cutting tools, oxygen supply tubes, etc., are held down on the frame 3.
Hang and support them respectively on the wiring supports 9. In addition, when transporting work supplies, for example, a transport trolley 16 as shown in FIG. 8 is prepared, and the trolley 16 is placed on the rails of a large number of connected support units 1 (see FIG. 6). , and the trolley 16 with work supplies placed thereon.
By running the work equipment, it is possible to quickly transport work supplies from the entrance of the buried pipe 14 to the work site.

After the construction work is completed, the cutting tools, etc. are taken out of the buried pipe, the connecting bolts are removed, and the connected support units 1 are individually separated.
Then, the bolts 8 are turned to reduce the holding frames 3, 3 of each unit 1, and all the support units 1 are carried out from the inside of the buried pipe 14.

<Effects of the invention> As explained above, the construction wiring support unit of the present invention has a structure in which fixing of the unit is completed only by expanding the holding frame, so that it can be easily installed inside underground pipes. The unit can be installed quickly, which contributes to improving the efficiency of construction work, and since the unit can be connected and disconnected by bolting and connection, it is easy to connect and disconnect. There is no risk of a fire occurring inside the buried pipe. Furthermore, by hanging and supporting the construction wiring on the support so that it does not become an obstacle to the traveling of the transport trolley, the wiring is not damaged and the work equipment can be transported smoothly.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a support unit according to an embodiment of the present invention, Fig. 2 is a front view showing unit fixing means of the support unit shown in Fig. 1, and Fig. 3 is a wiring support of the support unit shown in Fig. 1. 4a and 4b are plan views showing the connecting parts of the support unit of FIG. 1 in the separated and connected states, and FIG. 5 is a front view of the support unit of FIG. Figure 6 shows the inside of an underground pipe in which the support unit shown in Figure 1 is connected and installed, and Figure 7 shows the support unit shown in Figure 1 installed inside the underground pipe. The front view shown in FIG. 8 is a diagram (a cross-sectional view taken along the line -- in FIG. 1) showing a transportation trolley that rides on the rails of the support unit in FIG. 1. In the figure, 1... Support unit, 2... Foundation frame, 3... Holder frame, 5... Rail, 9...
Wiring support, 15... Construction wiring.

Claims (1)

[Scope of utility model registration request] A base frame with two parallel rails, a presser frame connected upwardly on the base frame so that the two rails form a substantially ring shape, and a pair of presser frames connected outwardly. A unit fixing means that is expandable and inwardly retractable, an appropriate number of wiring supports attached to the holding frame, and bolts formed on both sides of the base frame for connection to other support units. A support unit for construction wiring, characterized by having a tightening connection part.