JP2001349166A - Horizontal jack mounting structure of tubing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform construction work with the closest approach to a wall. SOLUTION: A horizontal jack mounting part 17 is formed in the outer side surfaces of two facing short sides 3b except the side surfaces of two facing long sides 3a of a base frame 3 for supporting a cylinder 2 for making a casing rotating mechanism 1 ascend/descend.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a horizontal jack mounting structure for a tubing device.

[0002]

2. Description of the Related Art A tubing device is provided with a horizontal jack for extending the whole of the device in order to vertically lay a casing. For example, as shown in FIGS. Horizontal jacks 4 on the outer sides of two opposite sides of a base frame 3 supporting
4 or as shown in FIG.
In some cases, a horizontal jack 4 is attached directly below each cylinder 2.

[0003]

However, as shown in FIG. 7, the horizontal jacks 4, 4 are attached to the outer sides of the base frame 3 on the two opposite sides, as shown in FIG. Because it is overhanging, if you want to work as close to the wall as possible,
However, there is a problem that it cannot get in the way of the wall, especially at the corners. A horizontal jack 4 is provided directly below each cylinder 2.
As shown in FIG. 8, although iron plates are laid under each horizontal jack 4,
The press-fitting of the casing 5 may cause the ground around the casing 5 to collapse, and if the collapse extends immediately below the horizontal jack 4, it may hinder the leveling of the entire apparatus. Furthermore, even in the ground where the ground collapse is small, in the ground where the casing pull-out resistance is high, the position of the horizontal jack is close to the casing. May be increased.

Accordingly, an object of the present invention is to provide a horizontal jack mounting structure of a tubing device in which a horizontal jack does not become an obstacle during wall construction, and there is little concern about ground collapse around the casing and ground surface tightening.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a tubing apparatus for mounting a horizontal jack outside two opposite sides of a base frame that supports a cylinder that moves up and down a casing rotating mechanism. In the structure, two opposite sides of the base frame
A horizontal jack mounting portion is formed outside two opposing side surfaces other than the side surface, and the horizontal jack can be mounted inside the base frame.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below based on an embodiment shown in the drawings. The same elements as those of the conventional example are denoted by the same reference numerals and described. 1 and 2 show a first embodiment of the present invention.
Is a substantially rectangular, substantially planarly-viewed rectangular plan view of the elevating frame 7 and the chuck device supporting frame 8 constituting the casing rotating mechanism 1 and the base frame 3 supporting the cylinder 2 for elevating and lowering the casing rotating mechanism 1 in the guide post 9. Is formed.

The elevating frame 7 includes a ring-shaped rotating frame 11 having a casing insertion hole 10 formed therein and a chuck cylinder 12 for elevating and lowering the chuck device supporting frame 8.
The chuck device supporting frame 8 has a plurality of chuck members 14 suspended by a ring-shaped rotating frame 13 having a casing insertion hole, and rotates with the casing 5 inserted through the casing insertion hole 10. The chuck member 14 is lowered between the casing 11 and the casing 11, the casing 5 is gripped, and the rotating frame 11 is rotated by the hydraulic motor 15 while the cylinder 2 expands and contracts.
Is raised and lowered, and the casing 5 is pushed and pulled out.

On the base frame 3, brackets 16 are formed at both end portions on the outer surface of the two long sides 3a facing each other as mounting portions for bolting the horizontal jack 4, and the brackets 16 are opposed to each other except the long side 3a. Two short sides 3b
Brackets 17 are formed at both ends as mounting portions for bolting the horizontal jack 4 to the outer surface of the bracket.

[0009] With this configuration, at the time of construction near the wall, FIG.
As shown in FIG. 5, of the horizontal jacks 4 attached to the bracket 16 on the two long sides 3a opposed to each other at a short distance from the casing insertion hole 10, the long side 3 approaching the wall is used.
By replacing the horizontal jacks 4 and 4a with the brackets 17 of the two opposing short sides 3b, the long side 3a can be placed very close to the wall.

FIGS. 3 and 4 show a second embodiment in which a bracket 18 for mounting the cylinder 4a of the horizontal jack 4 is formed directly below the cylinder 2 as a mounting portion of the horizontal jack 4 in addition to the aspect of the first embodiment. In this embodiment, as shown in FIG. 4, one of the horizontal jacks 4 of the long side 3a and the short side 3b approaching the wall is attached to the wall when constructing the corner, as shown in FIG. By replacing the bracket 17 with the short side 3b, which is not approachable, and replacing the remaining one with the bracket 18 immediately below the cylinder 2 at the corner, the tubing device 6 can be installed at the very edge of the corner. In this case, the horizontal jacks 4 and 4 attached to the brackets 16 on the long sides 3a and the horizontal jacks 4 attached to the brackets 17 on the short sides 3b are located at positions away from the casing 5. There is little concern about ground collapse or ground surface tightening. At a site where there is little concern about ground collapse or ground surface tightening, a horizontal jack may be attached directly below each cylinder 2.

FIG. 5 shows, in addition to the configuration of the first embodiment,
A third embodiment in which the cylinder 4a of the horizontal jack 4 is attached to the inside of the base frame 3 as an attachment portion of the horizontal jack 4 is shown, and even with this configuration, the tubing device 6 can be installed at the very corner of the corner. .

Therefore, the mounting position of the horizontal jack 4 can be freely changed in accordance with the installation location of the tubing device 6 and the condition of the ground, so that the verticality of the casing can be secured and the working efficiency can be improved.

In each of the above embodiments, the cylinder 2 for moving the casing rotating mechanism 1 up and down is arranged in the guide post 9, but the guide post 9 and the cylinder 2 are arranged at different positions. In the second embodiment, the horizontal jack 4 is mounted directly below the cylinder 2. However, for example, when the guide post 9 and the cylinder 2 are arranged at different positions, the guide post 9 is used. The horizontal jack 4 may be attached immediately below.

[0014]

As described above, the horizontal jack mounting structure of the tubing device according to the present invention has a horizontal jack on the outer side of two opposing sides other than the two opposing sides of the base frame that supports the cylinder that moves the casing rotating mechanism up and down. Since the mounting portion is formed, at the time of wall-side construction, by removing the horizontal jack from the side approaching to the wall and replacing it with a side that does not obstruct, the tubing device can be constructed just near the wall. In addition to this,
By allowing the horizontal jack to be installed inside the base frame, when installing at the corner, if the horizontal jack that becomes the corner is installed inside the base frame, the horizontal jack installed on the other side outside will be the casing Because it is located away from the ground, there is little concern about ground collapse around the casing and ground surface tightening.

[Brief description of the drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is also a plan view

FIG. 3 is a partial cross-sectional view showing a main part of the second embodiment.

FIG. 4 is also a plan view

FIG. 5 is a plan view showing a third embodiment.

FIG. 6 is a front view showing an example of a conventional tubing device.

FIG. 7 is a plan view of the same.

FIG. 8 is a front view showing another example of the conventional tubing device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Casing rotation mechanism, 2 ... Cylinder, 3 ... Base frame, 3a ... Long side, 3b ... Short side, 4 ... Horizontal jack,
5: Casing, 6: Tubing device, 7: Elevating frame, 16: Bracket of long side 3a, 17: Bracket of short side 3b, 18: Bracket immediately below cylinder 3

Claims (2)

[Claims] 1. A horizontal jack mounting structure for a tubing device in which horizontal jacks are mounted outside two opposite sides of a base frame that supports a cylinder that moves a casing rotating mechanism up and down. A horizontal jack mounting structure for a tubing device, wherein a horizontal jack mounting portion is formed on an outer side surface. 2. The apparatus according to claim 1, wherein the horizontal jack is attachable inside the base frame.
A horizontal jack mounting structure for the tubing device as described.