JP3091624B2 - Girder device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting device used to support a retaining panel installed on both left and right sides of an excavation groove when a drain pipe or a gas pipe is buried mainly in the ground.
Related to beam devices.

[0002]

2. Description of the Related Art Generally, many equipment pipes such as drain pipes and gas pipes are buried under the ground surface of a road or the like. In this type of construction, a digging groove of a predetermined depth was dug along the road on the ground surface, the left and right side walls of the digging groove were protected by collapsing panels, and equipment pipes were suspended and laid at the bottom of the digging groove. Later, the retaining panel was removed and backfilled.

[0003] Further, at the time of construction, a girder jack is installed between the left and right girder panels in order to support the girder panel, and this girder jack is installed in multiple stages when the excavation groove is deep. I have. It is necessary to temporarily remove the girder jack when suspending the equipment pipe at the bottom of the excavation trench.

[0004] However, a plurality of such cutting beam jacks are installed along the excavation groove, and when the excavation groove is deep, they are installed in multiple stages. It takes a lot of time and effort to set it again,
There was a problem that the construction was extremely troublesome. In addition, when the excavation groove is deep, it is necessary for an operator to enter the excavation groove, and thus there is a problem that it involves danger.

[0005] Further, since the strut and the cut beam jack are installed one by one, there is a problem that much labor is required and the work efficiency is extremely poor.

Further, since the end of the cutting beam jack is attached via a bracket attached to the column, the bracket hinders the space for hanging the buried pipe, and the opening width of the excavation groove is reduced. There were also problems such as the inability to hang large diameter buried pipes. Even if possible, it was necessary to temporarily remove the bracket each time, which inevitably reduced the workability.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and easily and safely installs and removes a girder spanning between left and right supports erected on the left and right sides of a digging groove. it can, moreover, cut RyoSo you allow without difficulty be installed in the buried pipe of large diameter opening width cup of excavation
The purpose is to provide a device .

[0008]

[Means for Solving the Problems ] To solve the above problems,
According to another aspect of the present invention, there is provided a cutting beam device according to the present invention.
As one, it is set up on the left and right sides of the
Right and left supports that support the stop panel, and
The beam that is passed over and supports the left and right supports,
Brackets projecting from each other to connect the beam and the column
In a girder device having a girder,
Insert the connecting pin that connects the ends so that they can rotate freely in the horizontal direction.
Pin holes for mounting, and the bracket is stored in the column
Attach so that you can.

According to a second aspect of the present invention, there is provided the cutting beam device according to the first aspect.
The bracket at predetermined intervals in the vertical direction of the column.
Attach.

According to a third aspect of the present invention,
In the beam device, the bracket prevents the beam from rotating
A pin hole for inserting a stopper is provided.

[0011]

[Embodiment 1] 1 to 4 show an embodiment of a girder device according to the present invention. In the drawings, reference numeral 1 denotes an excavation groove excavated at a predetermined depth along the road on the ground surface of the road, and 2 denotes This excavation groove 1
, Which are erected on both left and right sides of the digging groove 1 to protect the left and right side walls of the excavation groove 1 from collapsing, 3 are erected between the adjacent gusset panels 2, 2 so that the gusset panel 2 does not fall down. It is a supporting column. Reference numeral 4 denotes a cross-beam which is hung between the opposed left and right columns 3, 3 so that one end thereof can be freely swung in a horizontal direction about a rotation axis, and which supports the left and right columns 3, 3 so as not to fall down. It is a buried pipe such as a supply / drain pipe laid at the bottom of the groove 1.

The column 3 is formed by tying two guide columns 3a, 3a made of channel steel back to back, and is provided upright on both sides of the excavation groove 1 at predetermined intervals.

The ends of the retaining panel 2 are fitted into recesses of the guide posts 3a, 3a, respectively. Further, between the guide posts 3a, 3a, a cutting beam connecting bracket 5 (hereinafter referred to as "bracket 5") to which the end of the cutting beam 4 is connected is mounted via a horizontal shaft 6.
In addition, a plurality of brackets 5 are attached to the up and down direction of the column 3 according to the length of the column 3.

The bracket 5 rotates freely about the horizontal shaft 6 in the vertical direction, does not hinder the hanging of the buried pipe A, and has the largest possible opening width between the left and right columns 3, 3. It is attached so that it can be stored between the guide posts 3a so that it can be secured.

A pin hole 8 into which a connecting pin 7 for connecting the end of the cutting beam 4 is inserted is formed at the tip of the bracket 5.
And a pin hole 10 into which a fixing pin 9 for fixing the cutting beam 4 so as not to rotate is inserted.

A stopper 11 is provided between the guide posts 3a and 3a, which is located below each bracket 5 and prevents the bracket 5 from rotating below a horizontal state.

The stopper 11 comes into contact with the bracket 5 at a tapered portion 11a having a downward slope (about 5 ° with respect to the horizontal axis).
(See FIG. 4) so that the left and right columns 3, 3 can be alternately driven into the ground while being connected by the cutting beams 4.

A screw type jack or a hydraulic type jack is used for the cutting beam 4 so that it can freely cope with the span between the right and left columns 3, 3 and a pin hole into which a connecting pin 7 and a fixing pin 9 are inserted at both ends. 8 and 10 are formed respectively. The cutting beam 4 is bridged between the left and right columns 3, 3 and both ends are connected by connecting pins 7 and fixing pins 9 which are inserted into the ends of the cutting beam 4 and the pin holes 8 and 10 of the bracket 5, respectively. It is connected to the left and right columns 3,3.

In such a configuration, the method of using this cutting beam device will be described. The connecting pin 7 and the fixing pin 9 at one end 4a of the cutting beam 4 are pulled out, and one end 4a of the cutting beam 4 is pulled out.
From one of the columns 3 and the other end 4b of the cut beam 4
Pull out the fixing pin 9 of.

Next, the beam 4 is swung in the horizontal direction about the connecting pin 7 at the other end 4b so as to extend along the inside of the retaining panel 2. Further, the bracket 5 on one end 4a side is rotated upward around the horizontal shaft 6 and is housed between the guide posts 3a.

Then, when the buried pipe A is suspended at the bottom of the excavation groove 1, and when the buried pipe A is completely suspended, the above-mentioned operation is performed in reverse for the cutting beam 4, so that the left and right columns 3, 3 are again placed. Hang over.

In the case where the cutting beam 4 is bridged in a plurality of steps as in the embodiment, the above operation is sequentially performed from the upper cutting beam 4 to the lower cutting beam 4 to remove the buried pipe A. Drilling ditch 1
Laid at the bottom of the.

According to the above-described method, when the buried pipe A is hung on the bottom of the excavation groove 1, the bridge 4 can be bridged and removed with one touch.

Also, the left and right columns 3, 3 and the cutting beam 4 can be installed at the same time, and a large-diameter buried pipe of the full excavation width is provided at the bottom of the excavation groove 1 without being disturbed by the bracket 5. A can also be suspended.

Since the left and right ends of the cutting beam 4 have exactly the same configuration, it is possible to freely select which one is separated from the column 3 and which is to be swung about the rotation axis according to the situation at the site.

[0026]

The present invention is constructed as described above. Both ends of the cutting beam bridged between the left and right supports are connected to the left and right supports by detachable connecting pins, and one end of the cutting beam has a rotating shaft. It can be installed and buried at the bottom of the excavation trench by one-touch operation. There is an effect that can be achieved.

If the connecting pins are used to connect the ends of the cutting beam and swing the cutting beam from above the ground by using a jig, it is not necessary for the operator to enter the excavation groove, so that the work is not required. There is also an effect that safety can be achieved.

Also, since the left and right columns can be alternately driven into the left and right sides of the excavation groove with the cutting beams being bridged, the labor for installing the left and right columns and cutting beams one by one can be saved. This has the effect of greatly reducing labor.

Further, since the end of the cut beam is connected to a support by a connecting pin to a bracket mounted so as to be rotatable and housed in the support, the bracket is connected to the support when the buried pipe is installed. By temporarily storing the buried pipe, a large-diameter buried pipe full of an excavation groove can be hung without being hindered by the bracket.

[Brief description of the drawings]

FIG. 1 is a plan view showing a use state of an embodiment of a cutting beam device according to the present invention.

FIG. 2 is a sectional view taken along line aa in FIG.

FIG. 3 is an enlarged plan view of a portion A in FIG.

FIG. 4 is a sectional view taken along line bb in FIG. 3;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Excavation groove, 2 ... Ground stop panel, 3 ... Strut, 4 ... Cut beam, 5 ... Bracket, 6 ... Horizontal shaft, 7 ... Connection pin, 8 ... Pin hole, 9 ... Fixation pin, 10 ... Pin hole, 11 ... stopper, A ... buried pipe

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E02D 17/08

Claims (3)

(57) [Claims] 1. The digging trench is erected on both left and right sides.
Between the left and right supports that support the retaining panel
Girder that supports the left and right supports spanned by
Brackets projecting from each other and connecting the cutting beam and the support
In a girder device having a slot,
Insert a connecting pin that connects the end of the beam so that it can rotate freely in the horizontal direction.
It has a pin hole for
It is characterized in that it is attached to each of the left and right supports
Cutting beam device. 2. A bracket is provided at a predetermined interval in a vertical direction of a column.
2. The method according to claim 1, wherein the mounting is performed every other time.
Cut beam device. 3. A fixing device for fixing rotation of a cutting beam to a bracket.
3. The cutting beam device according to claim 1, wherein a pin hole for inserting a fixed pin is provided.