DE19728209C1 - Jig for assembling pipe sections - Google Patents

Abstract

The jig has a rigid frame (1) positioned on a horizontal pipe (5) and clamped in place with a screw (2). A further pipe section is placed next to the first and a curved frame (3) is attached to it. a lever (7) is pressed to lower both chains (6) which are suspended in the frame at the left and right of the pipe to be clamped and the second pipe is pressed into the first. A holding frame (12) at each side of the main frame supports rollers to the left and right of the pipe for parallel movement of the second pipe section with respect to the first.

Description

The invention relates to a pipe pressing device

Devices of this type have so far been made with hydraulic elements, that are part of the device.

Furthermore, devices with a hand-operated bracket are known for small pipes, e.g. B. DE 32 45 674 C2

The object of the invention is to provide a device for pushing tubes into one another, the device manages without its own hydraulic elements and from the outside can be operated with the help of an excavator.

The object is achieved according to the characterizing features of claim 1. An embodiment of the invention is shown in the drawing and will explained in the following.

It shows Fig. 1, a tube pressing unit which is operated with an excavator bucket.

The rigid part ( 1 ) is first placed on the already laid pipe ( 5 ) and fixed by the screw connection 2 . If this device is used for large pipes (approx. 0.5-2 m), the device is put on with the help of an excavator (construction machine). After the pipe ( 4 ) to be laid has been brought into position, a bracket ( 3 ) is placed on this pipe to be pressed, and if necessary with the excavator.

Now the chains ( 6 ) are hooked into ( 3 ) on both sides of the tube. Now the lever ( 7 ) is pressed down with the excavator (construction machine), the chains tighten and push the pipe ( 4 ) into the pipe ( 5 ). Depending on the lever position from the lever path to the effort, the process must be repeated.

Is z. B. with 2 tons of the excavator down and the load arm and power poor is in a ratio of 1 to 10, so the pipe is pressed into the other with 20 tons. The chains could also consist of a wire rope or a combined chain and wire rope.

The deflection rollers ( 9 ) are used to keep the chains or wire ropes in a parallel guide so that the tube does not tilt.

The pipes to be pressed are operated by means of a lever that exerts the force of one Excavator gets pushed into each other.

This works without the hydraulic system of the pressing device.

Reference list

1

Rigid part (is fixed on pipe)

2nd

Screw connection

3rd

Bracket with stop and chain holder (chain holder)

4th

pipe to be laid (pipe still to be pressed)

5

pipe already laid

6

Chains are left. and right. of the pipe

7

Excavator levers

8th

Backhoe bucket

9

Deflection pulleys for chains to ensure parallel pull

10th

Pipe sleeve of the concrete pipe

11

Rubber plate to prevent slipping off the backhoe

12th

Brackets for chain idlers

13

Return spring with damper (when the bucket lets go or Should slide off, the lever

7

automatically slowly returned to the starting position.)

Claims (4)

1. Pipe pressing device, characterized in that a rigid part ( 1 ) is placed on an already laid pipe ( 5 ) and fixed by the screw connection ( 2 ), that a pipe to be laid ( 4 ) is brought into position and to be pressed on this Pipe a bracket ( 3 ) is placed, with a lever ( 7 ) pressed down both chains ( 6 ) which are suspended in the bracket ( 3 ) to the left and right of the tube ( 4 ) and the tube ( 4 ) in the tube ( 5 ) pushes (presses). 2. Pipe pressing device according to claim 1, characterized in that the stanchions ( 12 ) attached deflection rollers ( 9 ) to the left and right of the tube ensure parallel guidance of the chains and that the chains with the help of the chain brackets on the bracket ( 3 ) retensioned can be. 3. Pipe pressing device according to claim 1, characterized in that the return spring ( 13 ) on the lever ( 7 ) and on the rigid part ( 1 ) is attached. 4. Pipe pressing device according to claim 1, characterized in that the lever ( 7 ) can be operated by means of a hydraulic excavator.