DE1634251A1 - Device for supporting the walls of graves while laying sewer pipes or the like. - Google Patents

Description

Patent attorney Dipl. Ing. Hartmut Kehl Artur Bader 7300 Esslingen, Mülbergerstr. 32A 7311 Erkenbrechtsuieiler Telephone Stuttgart (0711) 359992
cable «hakepat« esslingenneckar ■ Deutsche Bank Esslingen 210906
Postal check office Stuttgart 10004
Chase Manhattan Bank New York New version from
January 12, 1970 Aniualtsakte 561

Device for supporting the walls of trenches during the laying of sewer pipes or the like

The invention relates to a device for supporting the Walls of trenches during the laying of sewer pipes o with the necessary stiffeners via adjustable cross struts arranged in its lower and upper part a unit that can be inserted as a whole from above into the excavated trench are connected, the lower and Upper cross struts are assigned adjustment devices that can be actuated from above and heads on top of the two support walls are arranged with cross guides for cross guide rods.

When laying sewer pipes or the like in trenches, there is the difficulty that on the one hand the trenches are supported should be in order not to endanger the workers in the trench from slipping earth, but on the other hand the

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Cross supports very cumbersome when laying the pipes and make it impossible to lower the pipes vertically directly to the laying point.

In order to remedy this situation, devices of the type mentioned were developed. With such support devices, from which the invention proceeds, it is important that it can be worked with quickly. before For all things, the tension in the side walls should be able to be released quickly. It is important that this Loosening and pulling out the entire installation device is not hindered by the collapse of the earth. If you look at known devices from these points of view, they are for the purposes provided in the present case, namely for the quick laying of sewer pipes, regardless of the type of drive of the individual Adjusting devices, not suitable.

In a known device, the adjusting device sits between two shoring panels in the middle, so that the respective two shoring panels can only be released parallel and symmetrically. Above sliding soil obstructed then pulling it out. It is even worse with another known device in which the two shoring panels Pivot around central pivot points. After loosening two adjusting cylinders at the upper end of the shoring panels, it is opened by means of Attacked pull-up chains, there is a risk that the upper ends of the shoring panels come closer together when they are lifted and spreading the lower ends apart so that the whole device takes the form of an upwardly tapering wedge receives. The pulling out is significantly hindered by soil falling above.

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The invention is based on the object of creating a device of the type mentioned at the outset, with which overcomes the difficulties indicated above. To that end the invention is thereby characterized that at least sine of the Abstützuiänds hinged to its upper transverse guide head so that it can pivot and the adjustment devices of the lower cross struts can be operated separately from those of the upper cross struts are. As a result, a considerable advantage is achieved in the handling of the shoring device. Through the Linking the support wall to its upper transverse guide head, it is namely possible to first use the lower adjusting device to solve while the upper part of the trench is still supported by the upper adjusting device remain. The whole device has the shape of a wedge that tapers downwards and can be used without hindrance be pulled out as quickly as possible. This invention Training makes it easier to work with such a device when laying sewer pipes in such a way that overall there is a completely unexpectedly large saving in working time. Preferably the device Made about as long as a pipe length to be laid, fflit one or two devices according to the invention can do the laying work. the so-called shoring can be carried out, whereby the device according to the invention is only connected to the respective Job is used. The unit can be braced from above in the trench. There is no stepping into the trench for this necessary. The lowering of the pipe section can take place unhindered beforehand.

The side support walls usually consist of a boarding with horizontal and vertical stiffening beams. The vasculation can, however, also be broken through and e.g. be designed like a grid. As adjustment devices

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for the cross struts there are mechanical, pneumatic and Hydraulic drives into consideration, with combinations thereof, e.g. a hydraulic one for the lower cross struts Drive and a mechanical drive for the upper cross struts are possible. In a preferred embodiment of the Invention, the lower cross struts are formed in a known manner by hydraulic cylinder / piston drives, their respective cylinder are articulated on the one support wall and the respective piston on the other support wall, and the upper cross struts are each a known mechanical hoisting winch, which is arranged on the respective cross rod, is preferably firmly connected for additional stiffening. This has the advantage that the side support walls are never completely can be squeezed. Even if the piston in the Cylinder is pressed, so there always remains a gap, the width of which corresponds to the length of the cylinder, since this acts as a strong support. This design is also characterized by its great simplicity.

Hydraulic actuators are preferably used together with one on top of the unit, namely on the head of one of the retaining wall, mounted hydraulic hand pump used.

The upper cross guide bars ensure that the two Lateral supports remain at the same height. You can Form part of the upper cross braces, in particular, if mechanical Hubu / inden are used as the upper adjustment devices, which are arranged between the two support walls are. These are then to / corner-wise in the lateral Guides that are attached to the transverse guide heads.

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The device according to the invention can be used together or after the pipe length to be laid and.by means of the Adjusting devices to be operated from above brought into contact with the Seitenuiände of the trench and clamped there. This can be done safely in this trench section worked and the lowered pipe length connected to the pipe that has already been laid. The Bracing of the Seitenuiände quickly released and the whole unit lifted out, namely in the inventive Way in the form of a downward tapering wedge.

Further details and advantages of the invention result from the following description of one of the Drawing illustrated embodiment. Show here

Fig. 1 is the front view of an embodiment according to the invention, lowered into a trench and with dash-dotted lines drawn pipe section,

Fig. 2 shows the side view of the embodiment according to Fig. Without cladding of the Seitenuiände,

FIG. 3 shows a plan view of the embodiment according to FIG. 1

and 2 with the pipe section drawn in dash-dotted lines.

The embodiment according to FIGS. 1 to 3 essentially consists of two Seitenabstützuiände designated as a whole with 1 and 2, zuei lower cross struts in the form of a hydraulic cylinder / piston drive 3 and ztuei upper transverse guide rods 4 with mechanical Hubutinde arranged above each 5.

Each of the Seitenabstützuiände 1, 2 consists of a casing 6, longitudinal stiffening beams 7 and vertical stiffening supports 8. The cylinder 9 of the cylinder / piston drive 3 is via an eye 10 in the lower area of the

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stiffening support θ hinged to the side support wall 1, while the punch 11 connected to the piston has an eye 12 on the lower part of the l / erateifungsstütze 8 of the other Seitenabstützwand 2 is hinged. Riit 13 are the supply and Derivatives to the cylinder / piston drive 3, which is designed as a hydraulic press, designated. she lead up along a vertical stiffening support θ to a hydraulic hand pump 14, which is on a on the upper end of this stiffening support 8 seated head 15 is mounted, which is for receiving the transverse guide rod 4 serves. Also on the other vertical stiffener 8 of this side support wall 1 sits such a head 15. The transverse guide rods are located on these heads 15 attached.

On the vertical stiffening supports 8 of the other side wall 2 are 16 heads 17 via a respective bolt pivotably articulated, which have continuous sliding guides for the sliding reception of the transverse guide rod 4. The mechanical Hubujinden 5 attack the shoulders of the heads 15 and 17, as FIG. 3 shows. The tappets of the hoisting winches are welded to the heads 15 and 17, so that together with the transverse guide rods 4 a very solid connection between the heads 15 and 17 exists.

In Fig. 1, the device according to the invention is shown inserted in a dug trench. The already lowered The pipe is shown in dash-dotted lines. First, a trench is dug in the usual way, e.g. with an excavator, into which the pipe to be placed is lowered. Then the device according to the invention, whose Side walls e.g. have a height of 3 m, retracted and braced against the trench walls. Workers can then safely enter the trench and carry out the required work carry out, e.g. the pipe section with the one that has already been laid

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Connect pipe string. The device according to the invention is then released from its clamping position and moved out and is ready for reuse. U / ie Fig. 3 shows the device according to the invention is expedient slightly longer than the pipe sections to be laid. This can be extremely quick worked «earth. It is also possible to lower the device together with the pipe section into the trench.

In the context of the invention, instead of a hydraulic Drive, e.g. a pneumatic drive can also be used. Of course, the hand pump can also be used against a replace other pressure source. However, the embodiment shown in the drawing is opposite to these other possible solutions are particularly advantageous.

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Claims (3)

I. Artur Bader 1634251. Patent attorney Dipl. Ing. Hartmut Kehl 7311 Erkenbrechtsweiler 7300 Esslingen, Mülbergerstr. 32A .8th· Telephone Stuttgart (0711) 359992
cable «hakepat« esslingenneckar Deutsche Bank Esslingen 210906
Postal check office Stuttgart 10004
Chase Manhattan Bank New York New version from
January 12, 1970 Attorney File 561 Claims Device for supporting the walls of trenches during the laying of sewer pipes or the like with two side support walls, which together with the necessary stiffeners are arranged in their lower and upper part adjustable cross struts are connected to form a unit that can be inserted as a whole from above into the excavated trench, the lower and upper cross struts being associated with adjusting devices that can be actuated from above and on top the two support walls are arranged heads with transverse guides for transverse guide rods, characterized in it that at least one (2) of the support walls (1,2) on its upper transverse guide head (17) is pivoted and the l / creation devices of the lower cross struts can be actuated separately from those of the upper cross struts. 009829/0548 a 2. Device according to claim 1, characterized in that that the lower cross struts are formed in a known manner by hydraulic cylinder / piston drives (3) whose respective cylinder (9) on the one Abstützuiand (1) and their respective piston (11) are hinged to the other Abstütziuand (2), and the upper cross struts each one known mechanical Hubuiinde (5) are arranged on the respective crossbar (4),. preferably firmly connected for additional stiffening is. 3. Apparatus according to claim 1 or 2, characterized that on the head (15) of the one Abstütziuand (1) a hydraulic hand pump (14) is attached is. 009829/0548 it Blank page