JPH0393977A - Work room for manhole construction - Google Patents

Abstract

PURPOSE:To facilitate conveyance and installation of a work room for manhole construction and also enable manhole construction even in had weather by connecting wall panels between a ceiling panel and a floor panel in such a manner as being freely folded, and also detachably providing a door panel and a panel for arranging equipment. CONSTITUTION:Right and left, and front and rear wall panels 2, 3 both of which can be folded at the connecting portions of their respective lower panels 2b, 3b and upper panels 2C, 3C are connected together between a floor panel having a hole 1a formed through it and a ceiling panel 4, and a door 5 and a panel 6 for disposing equipment are detachably provided, whereby a work room for manhole construction is constituted. The wall panels 2, 3 are folded between the floor panel 1 and the ceiling panel 4 and are carried to a construction site while being flat as a whole. At the site the floor panel 1 is disposed by adjustment of its hole 1a to the manhole, and the wall panels 2, 3 are unfolded and set up, and the door 5 and the panel 6 are attached to the panels, thereby assembling and installing the work room.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a construction work room used for manhole construction such as telephone line connection construction, for example.

[Conventional technology]

A typical example of manhole construction is telephone line connection work, but in this case, the decision whether or not to proceed with the work is usually made the day before the work day or early on the day of the work based on the weather and the progress of the work. Construction signs, generators, pumps, ventilation fans, and other equipment are loaded onto trucks, and four to five workers travel to construction sites in van-type freight cars.

At the site, we first install safety cones, sign boards, etc. around the manhole on the road to display to passersby and vehicles that the manhole is under construction to ensure safety, and then close the manhole cover. Open the manhole and then install a manhole frame around the manhole to prevent dirt, dust, rainwater, etc. from entering the manhole from entering the manhole.

Next, as a safety check inside the manhole, we measure toxic gas and oxygen concentration, and check the water in the room.Furthermore, we install lighting equipment in the room, remove water with a pump if there is water in the room, and use a ventilation fan. Bring in fresh outside air.

After safety checks and work preparations are completed in this way, the telephone line connection work is carried out.

By the way, this series of work will be carried out on the road since manholes are installed on the road.
Such roadside work sites typically have no cover over them.

[Problem to be solved by the invention]

For this reason, the construction work will be carried out in the open air.
The work environment was not good, as it was directly affected by the weather, and it was difficult to plan work because it was impossible to work during bad weather such as rain, and it was also directly exposed to dirt, dust, etc.

The purpose of the present invention is to provide a manhole construction device that eliminates the disadvantages of the conventional example, allows work to proceed without being affected by the weather, provides a good working environment, and is easy to transport and install. The purpose is to provide a work room.

[Means to solve the problem]

In order to achieve the above object, the present invention connects a foldable light metal wall panel between a light metal roof panel and a floor panel, and also provides a door panel and a panel for installing equipment in a removable manner. The main idea is that the panels feature holes for manholes.

[Function] According to the present invention, the work room is transported to a manhole construction site in a state where the wall panel is folded between the roof panel and the floor panel to make the whole flat. At the site, the folded wall panels are stretched out and erected, and the wall panels and panels for installing equipment are attached to complete the work room. Manhole construction can be performed inside the work room.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a work room for manhole construction according to the present invention. The main body of the chamber is constructed, and each panel 1, 2, 3.4 is made of a light metal such as aluminum.

The left and right wall panels 2 are connected to a fixed panel 2a that is fixed and erected on the left and right side edges of the floor panel 1, and to the upper part of this fixed panel 2a in a rotatable manner connected upwardly by a connecting member such as a hinge. It consists of a lower panel 2b and an upper panel 2c, and the upper panel 2c and the lower panel 2b are foldably assembled into two inside the fixed panel 2a via a connecting portion by a hinge between the two.

Similarly to the left and right wall panels 2, the front and rear wall panels 3 are also fixed panels 3a fixed to the front and rear edges of the floor panel 1.
The fixed panel 3a is composed of a lower panel 3b and an upper panel 3c which are rotatably connected upward in sequence by a connecting member such as a hinge on the upper part of the fixed panel 3a. The lower panel 3b and the fixing panel 3a are foldable into two pieces inside the fixing panel 3a through a connecting part by a hinge and a connecting part by a hinge between the lower panel 3b and the fixed panel 3a.

Of the fixed panel 3a, lower panel 3b, and upper panel 3c that make up this wall panel 3, the length of the fixed panel 3a in the horizontal and longitudinal direction is equal to the length of the floor panel l in the horizontal and longitudinal direction. The lower panel 3b and the upper panel 3c are shorter than the horizontal and longitudinal length of the fixed panel 3a, and are fixed panels 3 on both left and right sides of the lower panel 3b and upper panel 3c.
An opening is formed above a, and a door 5 for entry and exit and a panel 6 for arranging equipment are removably disposed in this opening.

The relative positional relationship between the door 5 and the panel 6 is made to be the same on the front and rear sides of the workroom, and in the illustrated example, the door is placed at the opening on the left facing the workroom on both the front and rear sides. 5, and a panel 6 was placed in the right opening.

In addition, the floor panel 1 has a hole 1a for entering and exiting the manhole approximately in the center, and is provided with fixing fittings 7 for fixing the chamber to the manhole, and the four corners of the lower surface of the floor panel 1 are level-adjustable. A leg 8 is provided.

The main body of the chamber is shaped as described above, and the size of the main body of the chamber is such that it can be mounted, for example, on the roof of a Vantamp freight car using a roof carrier, and the height after assembly is approximately 2 m. do. Further, the weight is set to be around 100 kg, for example, so that four to five construction workers can load and unload it into a car.

The ceiling panel 4 is provided with a rotary light 9 and an outlet (not shown) that can be retrofitted, and a lighting fixture (not shown) is provided on the indoor side. The one on the side) is equipped with a sign board IO that can be retrofitted, and the sign board IO reads, for example, "Telephone work under way at ○○○ company."
Write down characters such as

In the figure, reference numeral 11 indicates an air conditioning device such as a window type cooler attached to the panel 6, reference numeral 12 indicates a hole for the passage of piping for working equipment such as a pump or ventilation fan, and reference numeral 15 indicates a window provided in the wall panel 3 or door 5.

Next, how to use it will be explained.

Fig. 2 shows the state in which the work room is folded. In this state, the left and right wall panels 2 are oriented downwardly inside the fixed panel 2a that is fixed and erected on the floor panel l. The lower panel 2b rotates around the pivot point with the panel 2a, and the lower panel 2b comes into close contact with the inner wall surface of the fixed panel 2a in parallel with this, and the upper panel 2c is placed inside the lower panel 2b. The upper panel 2c rotates around the pivot point with the lower panel 2b, and is in close contact with the inner side of the lower panel 2b in parallel with it, with the fixed panel 2a outside and the lower panel 2b and the upper The panels 2c are sequentially folded into a bellows shape.

The front and rear wall panels 3 are also folded in the same manner as the wall panel 2 described above, with the fixed panel 3a being placed outside and the lower panel 3b and upper panel 3c being folded in order into a bellows shape on the inside. A ceiling panel 4 overlaps the top of .3.

In this folded state, the work room is a Bantay freight passenger car l3
The roof carrier L4 is used to load the workpiece onto the roof of the passenger car L3, and four to five workers board the freight and passenger car L3, which then heads to the manhole construction site.

After arriving at the scene, 4 to 5 workers manually lower the work chamber from the roof of freight passenger car 13, and with the work chamber folded, open the manhole access hole 1a through the manhole on the road. Place it directly above the street.

Then, by manually pulling up the wall panels 2 and 3 above the fixed panels 2a and 3a, lower panels 2b and 3b, and upper panels 2c and 3c in order by stretching the bellows,
Stand up as a single piece on the side of the floor panel l.

After the wall panels 2 and 3 are erected between the ceiling panel 4 and the floor panel l and the work room main body is assembled in this way, the level of the room main body is adjusted using the legs 8, and the room main body is leveled. The main body of the chamber is fixed to the manhole using the fixing fittings 7.

Furthermore, a revolving light 9 is attached to the ceiling panel 4, a sign board 10 is attached to the wall panel 2, a door 5 and a panel 6 are fitted into the left and right openings of the wall panel 3, and an air conditioner 11 is attached to the panel 6. At the same time, piping and installation of a ventilation fan and pump are performed through hole l2.

Then, the safety inside the manhole is confirmed in the same way as before.
After making preparations such as draining water and supplying air, the telephone lines will be connected.

The road above the manhole is surrounded by a work room, so this series of work can be carried out without being affected by bad weather such as rain, and water, wind, dust, etc. can enter the manhole. can be prevented.

Furthermore, by operating the air conditioner 1l, the temperature inside the work room and manhole can be maintained at a temperature suitable for the work.

[Effects of the invention] As described above, the manhole construction work room of the present invention has the following advantages:
Since the upper part of the manhole on the road can be surrounded by a room, rain and wind can be prevented from entering the manhole, construction can be carried out even in bad weather, the process can be easily planned, and workers can be arranged reliably.

Furthermore, since the work room is foldable, it is convenient for transportation and storage, and since it is lightweight, it can be easily assembled by hand without the need for special machinery.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the manhole construction work chamber of the present invention, and FIG. 2 is an explanatory view of the same in a folded state. l...Floor panel la...hole 2...left and right wall panels 2a...fixed panel 2b...lower panel 2c...upper panel 3...front and rear wall panels 3b...lower Panel 4...Ceiling panel 6...Panel 8...Legs lO...Sign plate l2...Hole l4...Roof carrier 3a...Fixed panel 3c...Top panel 5... Door 7...Fixing bracket 9...Revolving light l1...Air conditioner l3...Van type freight car 15...Window Figure 1

Claims (1)

[Claims] A foldable light metal wall panel is connected between the light metal roof panel and the floor panel, and a door panel and a panel for installing equipment are removably installed, and a hole for a manhole is formed in the floor panel. Features a work room for manhole construction.