JPH0336780Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) The present invention relates to a hanging fitting for laying a buried pipe that supports the buried pipe when it is laid.

(Prior Art) Conventionally, corrosion-resistant steel pipes and the like have been used to protect underground cables.

When the diameter of the buried pipe is small and the weight of the pipe is light, the pipe is suspended or positioned on a nozzle stand, and the pipe is manually turned using chain tongs to make a screw connection. In addition, if the pipe diameter is relatively large, the connection is performed by sleeve welding.

(Problem that the invention aims to solve) Particularly when the pipe diameter is large, the pipe is heavy, making it difficult to adjust the level and height necessary for screwing, and to rotate the buried pipe, making it difficult to connect with the screw. It was hot. On the other hand, connecting by welding requires precise work by skilled workers in order to obtain the specified strength and watertightness, and it is also necessary to secure the space and environment necessary for the work.

As the diameter of the pipes increases, the connection work becomes extremely complicated, which has a significant impact on increasing construction costs and prolonging the construction period.

The present invention was developed based on the above-mentioned problems, and an object of the present invention is to provide a hanging fitting that can freely handle buried pipes.

[Structure of the invention] (Means for solving the problem) Rotatable spherical supports 15 are provided on both sides of a support stand 11 constructed under the hanging hook 10.

(Function) Since the spherical supports 15 on both sides can rotate in any direction, the buried pipe 22 supported by the spherical supports 15 can not only move in the axial direction but also in the rotating direction and twisting direction of the buried pipe 22. You can move freely.

(Embodiment) Figures 1 to 4 show a first embodiment, in which 1 is a recess for connection work that is excavated to a predetermined depth, and a steel sheet pile 2 is disposed on the wall. At the same time, reinforcing rods 3 are installed above the steel sheet piles 2. Further, on one side of the recess 1, one end of an existing buried pipe 4 that has already been buried projects approximately horizontally. A socket 4A having a female thread (not shown) is provided at one end thereof. Reference numeral 5 denotes a pair of left and right girders installed on the upper surface of the recess 1. Mounting wires 6 are suspended from these girders 5, and a lever block 8, which is a hanging member with a hook 7 connected to the lower end, is attached to the girder 5. It is suspended below the mounting wire 6. The hanging fitting 9 suspended from the hook 7 is composed of a hanging hook 10 and a support base 11 connected to the lower portions of both sides of the hanging hook 10. The hanging hook 10 has a bifurcated shape, and the hook 7 is attached to the top thereof. A receiving portion 12 for locking is provided protrudingly, and hook portions 13 are formed at the lower portions of both sides.

The support stand 11 has the hook portions 13 at both ends thereof.
A receiving portion 14 is provided upright and connected to the receiving portion 14.
A spherical support body 15 made of a steel ball is attached to the inside of each. Further, on both sides of the support base 11, there are mounting seats 16 for mounting the spherical support 15 with the axial direction directed in an oblique direction.
form. Reference numeral 17 denotes a box body 17 for attaching the spherical support 15 to the mounting seat 16. A bracket 18 is provided at the lower part of the box body 17, and a plurality of brackets, for example 8 to 9 brackets, are provided in the box body 17. steel ball 19
are accommodated, and the spherical support 15 is rotatably provided by these steel balls 19. 20 is a cover plate fixed to the upper surface of the box body 17 so that the upper part of the spherical support 15 protrudes, and 21 is a washer. In the figure, 22 is a buried pipe with a male screw (not shown) formed on one side, 23 is a chain tongue that rotates the buried pipe 22, and 24 is a rolling prevention member that prevents the buried pipe 22 from rolling. be.

Next, the operation of the above structure will be explained.

A buried pipe 22 connected to the existing buried pipe 4 is supported by hanging fittings 9 provided in the front and rear. At this time, the buried pipe 2 is supported by the spherical support 15 provided on the support 11.
2 is supported so as to be movable in its axial and circumferential directions. And buried pipes 4, 22
Perform mutual centering. That is, the lever block 8 is used to adjust the vertical direction, and the mounting wire 6 is used to adjust the horizontal direction. After completing the centering in this manner, one worker pushes in the buried pipe 22 and at the same time, the other worker uses the chain tongs 23 to turn in the screwing direction to screw the existing buried pipe 22 into the socket 4A. When rotational force and propulsive force are applied to the buried pipe 22 in this manner, the spherical support body 15 can support the buried pipe 22 while sliding. At this time, the buried pipe 22 tends to sway to some extent, but this lateral movement can be prevented by the lateral movement prevention member 24.

In this way, since the buried pipe 22 is supported by the hanging fitting 9 which is rotatable on the support stand 11 and is provided with the spherical support body 15, when a force in the screw direction is applied to the buried pipe 22, the buried pipe 22 is screwed. The buried pipes 4 and 22 can be easily screwed together.

Furthermore, since the spherical supports 15 are provided diagonally upward on both sides of the support base 11, when the buried pipe 22 is supported, the axis of the buried pipe 22 is located directly above the center of the pair of left and right spherical supports 15. Therefore, alignment etc. can be easily performed.

Moreover, hook portions 13 are provided at both ends of the hanging hook 10.
The hook portions 13 are formed at both ends of the support base 11.
By forming the receiving part 14 that locks,
The hanging hook 10 and support stand 11 can be disassembled,
It is possible to reduce the weight during transportation.

5 and 6 show a second embodiment and a third embodiment, in which the same parts as in the first embodiment are given the same reference numerals, and detailed explanation thereof will be omitted.

In the second embodiment, a recess 11A is formed in the center of the support 11, and first spherical supports 15A are rotatably provided on both sides of the recess 11A. 2 spherical support 15B
will be established. Therefore, when the buried pipe 22A with a small diameter is supported, it is supported by the first spherical support 15A, while when the buried pipe 22B with a large diameter is supported, it is supported by the second spherical support 15B.

In this way, the first and second spherical supports 15
By providing the pipes A and 15B, both the small diameter and large diameter buried pipes 22A and 22B can be supported movably in the screw direction.

Furthermore, a first spherical support 15A is placed in the recess 11A.
When supporting the large-diameter buried pipe 22B,
There is no risk of contact with the first spherical support 15A, allowing greater flexibility.

In the third embodiment, the support stand 11 is connected to the buried pipe 22.
The support base 11 is formed wide in the longitudinal direction, and spherical supports 15 are provided on all sides of the support base 11. Further, hanging hooks 10A are connected diagonally upward to the four sides of the support base 11. In other words, there are two sets of bifurcated shapes.

In this way, spherical supports 15 are placed on all sides of the support base 11.
By installing the underground pipe 22 in four places,
can support a larger diameter buried pipe 22. Further, by providing hanging hooks 10A on all sides of the support base 11 and fixing their upper ends to one point, the support base 11 can be hung with good stability.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications are possible. For example, in the embodiment, the spherical support 15 is rotatably provided by the steel balls 19 housed in the box body 17, but the structure is not limited to this, and the spherical support 15 can be rotatably supported. That's fine. Further, in the embodiment, the hanging hook 10 and the support base 11 are shown as being separate, but the hanging hook and the support base may be integrated.

[Effects of the invention] The present invention provides rotatable spherical supports on both sides of the support stand installed at the bottom of the hanging hook, so that the buried pipe can be moved not only in the axial direction but also in the circumferential direction, spiral direction, etc. can be moved arbitrarily and easily.

[Brief explanation of the drawing]

1 to 4 show the first embodiment,
Figure 1 is a front view, Figure 2 is a side view, Figure 3 is an explanatory diagram showing the state of use, Figure 4 is a sectional view of the main parts, Figure 5
The figure is a front view showing the second embodiment, and FIG. 6 is a perspective view showing the third embodiment. 8... Lever block (hanging member), 10
... Hanging hook, 11 ... Support stand, 15 ... Spherical support.

Claims (1)

[Scope of utility model registration request] It is characterized by comprising a bifurcated hanging hook connecting a hanging member at the upper part, a support stand installed at the lower part of the hanging hook, and rotatable spherical supports attached to both sides of the support stand. Hanging fittings for laying underground pipes.