JPS6033197Y2 - Tunnel support assembly equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an in-tunnel support assembly device that is used by being attached to a general-purpose machine such as a tractor shovel when setting support in tunnel excavation work.

Generally, in tunnel construction, after tunnel excavation, arch-shaped supports are erected, and retaining plates are inserted between the outside of the supports and the inner surface of the tunnel.

Traditionally, beam-lid pull carts, crawler drill erectors, air winches, etc. have been used for such work, but these devices take up too much space for cutting, are dangerous, and even damage the equipment. There were problems such as high production costs.

In view of the above-mentioned problems, the purpose of this invention is to provide a special machine that can be attached to the arm of a general-purpose machine such as a tractor shovel, thereby simplifying the device and reducing its cost, as well as improving work safety and efficiency. The gist of this is that there is a support board that can be freely installed vertically at the tip of the attachment support arm of a general-purpose machine such as a tractor excavator, and one end of a parallel link that is arranged vertically on the front of the support board. At the same time, a support lift platform is attached to the tip of the parallel link, and a hydraulic cylinder for vertically driving the parallel link is provided between the parallel link and the support board, and scaffolding supports are installed on both sides of the front side of the support board. The present invention resides in a tunnel support erection device in which a horizontal rod is provided in a protruding manner, and a working scaffold is supported so as to be able to move in and out of the horizontal rod.

Next, an example of implementation of the present invention will be described with reference to the drawings.

In the figure, 1 is a support substrate.

Mounting brackets 2a, 2b are protruded from the back side of the support board 1 in a vertical arrangement, and the brackets 2a, 2b
Attachment support arm 4a of tractor excavator 3
, 4b are pivotally attached using pins 20a and 20b.

The tractor shovel 3 has a normally used shovel (not shown) removed, and the support substrate 1 is attached in place of the shovel.

A pair of vertically arranged link mounting brackets 5a and 5b are protruded from the upper center of the front surface of the support board 1, and parallel links 6ay6b are mounted vertically on the brackets 5a and 5b.
The proximal end of is pivotally attached.

The tips of these parallel links 6a and 6b are the shoring push-up platform 7
The parallel links 6a,
By the vertical movement of 6b, the shoring push-up platform 7 is moved up and down while maintaining its horizontal position.

A hydraulic cylinder 9 for rotating the parallel link is installed between the parallel link 6b and the support substrate 1, and the parallel links 6a and 6b are rotated up and down by the drive of the hydraulic cylinder 9.

A pair of rotatable rollers 10.10 are attached to the upper surface of the shoring push-up table 7 in parallel to each other and facing in the front-rear direction.

Further, on the front surface of the support substrate 1, horizontal rods 11.11 for scaffolding are provided protruding from both sides of the parallel links 6a and 6b.

This horizontal rod 11.11 is formed shorter than the parallel links 6a, 6b, and a working scaffold 12 is attached to the horizontal rods 11, 11 so as to be able to move in and out.

This scaffold 12 is framed in a rectangular shape, and as shown in Fig. 3, both sides of the scaffold 12 are fitted into grooves 11a, 11a formed on the opposing surfaces of the horizontal rods it, 'rt so as to be slidable in the longitudinal direction. ing.

And the scaffold 12 has an extract band metal 1 on its top surface.
3 is extended, and a handrail 14 is provided continuously and protrudes from the side and front end.

In the figure, 15 is a horizontal rod reinforcement frame.

When using the shoring assembly apparatus constructed in this manner, the shovel or the like (not shown) to which the attachment support arms 4a and 4bi are normally attached is removed, and the attachment support arms 4a and 4bi are removed.

It is used by attaching the support substrate 1 described above to the tip of the supporting board 4b, and as shown in FIGS. A, the tip sides are placed alternately on the rollers 10 and 10 of the shoring lifting platform 7, and in this state, the hydraulic cylinder 9 is driven upward and the shovel support arms 4a and 4b are driven upward. to push the shoring push-up platform 7 upward.

After pushing up the ends of the shoring materials 16 and 16 to a desired height, the ends of the shoring materials 16 and 16 are butted against each other, and the top joint plates of the shoring materials are butted against each other as in the conventional method, and the bolts 17 are used to connect them.

The earth retaining plates 1B and 18 are successively pushed between the thus assembled shoring materials 16 and 16 and the inner surface of the tunnel to assemble the shoring.

Then, the connection with bolts 17 and the earth retaining plate 1B at a high position
, 1B are pushed in by a worker riding on the work scaffold 12.12.

In addition, 19 in the figure is a tie rod.

The in-tunnel shoring assembly device of the present invention is configured as described above, and can be used as a replacement for a tractor shovel, for example, so it can be manufactured at a lower cost than conventional dedicated machines, and the device itself is also lightweight. It is compact, which is advantageous for work, and by installing a special work scaffold that rises with the shoring platform, it has various effects such as safe and efficient work, and is suitable for tunnel construction. Its effectiveness is enormous.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view of the main parts, FIG. 3 is a sectional view of the workbench, FIG. 4 is a side view of the device in use, and FIG. Figure 5 is a front view of the same. DESCRIPTION OF SYMBOLS 1... Support board, 3... Tractor shovel, 4a, 4b... Attachment support arm, 6a. 6b...Parallel link, 7...Shoring push-up platform, 9...Hydraulic cylinder, 11...
...Horizontal rod, 12...Work scaffolding, 16...
...Shoring material, 17...Bolt, 18...
... Earth retaining board.

Claims (1)

[Scope of utility model registration request] A support board is provided that can be freely installed vertically at the tip of an attachment support arm of a general-purpose machine such as a tractor excavator, and one end of a vertically arranged parallel link is pivoted to the front of the support board, and a support is attached to the tip of the parallel link. A work lifting platform is attached, a hydraulic cylinder for driving the parallel link up and down is provided between the parallel link and the support substrate, and horizontal rods for scaffolding are protruded from both sides of the front side of the support substrate, and An in-tunnel support assembly device that supports work scaffolding so that it can be moved in and out.