JPH06147362A - Installing device for pipe - Google Patents

Abstract

PURPOSE:To position and install pipes with high precision and high efficiency by constituting an installing device used in connecting vertically arranged pipes with a pair of semi-cylindrical two-barrel members pivotally fitted openably, and providing an expanded opening section guiding an upper pipe at the upper section of them. CONSTITUTION:When vertically arranged upper and lower pipes 13-1, 13-2 are to be installed and connected, the lower pipe 13-1 welded with an iron ring 16 at the pipe end section is fixed to a building, an installing device 1 made of two-barrel members is fitted at the upper end section of the pipe 13-1 with an expanded opening section 9 faced upward, and bolts 4 of fastening tools 5 are fastened to fix it. The upper pipe 13-2 is lowered into the expanded opening section 9 until the end face is brought into contact with a projection 11, and the pipe 13-2 is fixed to the building. The installing device 1 is removed, a rubber ring 17 is shifted upward to the periphery of a junction section between the pipes 13-1, 13-2, and both pipes 13-1, 13-2 are connected and fixed by victaulic connecting joints 19 via the iron rings 16 at the pipe end sections.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention can be easily and accurately positioned and installed when prefabricated in a factory or when unitized pipes or single pipes are vertically arranged and connected in a building or a plant. The present invention relates to an installation device for piping.

[0002]

2. Description of the Related Art Conventionally, in order to install a piping unit, the clearance between the pipe end surface to be connected and the pipe end surface to be connected is properly installed, and then the pipe unit is slid down one by one to bring the pipe end surfaces into alignment with each other. The method of doing was generally done.

The conventional technique as described above has the following problems.

At the time of installation, there is nothing for guiding the pipe end face to be connected and the pipe end face to be connected, and it is difficult to align them.

It is difficult to set and secure a clearance between both pipe ends.

If the method of sliding down the pipe to be connected is not properly done, both pipe ends will violently contact each other, and a fragile portion such as anticorrosion treatment of the pipe end face will be damaged.

Since the main installation must be performed one by one, the installation efficiency of the unit in which a plurality of units are integrated is greatly impaired.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems. The purpose is to propose a pipe installation device that ensures accurate clearance when connecting pipes arranged vertically and can be positioned and installed with high accuracy and efficiency without causing damage such as contact. It is in.

[0009]

This pipe installation device is attached to the upper end of the pipe to be connected which is vertically oriented and the lower end of the pipe to be connected, which slides down from above, is connected to the upper end of the lower pipe. Is a device for guiding and positioning and installing the device. The installation device is a cylindrical space in which one side of a two-body member having a substantially semicircular cross section on the inner surface is connected by a hinge, and a fastener is attached to the other side to open and close inside. The lower end of the cylindrical space forms a cylindrical portion that is fitted and fixed to the upper end of the lower pipe, and the upper end of the cylindrical space has a slip buffering material on the inner surface, and the lower end of the upper pipe is A convex portion of the cushioning material to be stretched out in the lateral direction of the boundary peripheral portion between the cylindrical portion and the enlarged opening, the thickness of which corresponds to the clearance to be provided between the end faces of the pipes. To do.

[0010]

The pipe installation device having the above structure is attached to the upper end of the pipe to be connected below.
Since the upper end of the cylindrical space forms an enlarged opening, the upper pipe that slides down from above can be guided toward the upper end of the lower pipe.

When the end faces of the pipes are joined together by a flange or the like, the tubular space has a size capable of accommodating the flange.

Since the convex portion of the slip buffering material is projected at the peripheral edge between the enlarged opening portion and the cylindrical portion therebelow, the lower pipe end surface inserted into the cylindrical portion from below and fixedly fitted and the enlarged opening portion It is possible to perform installation while accurately maintaining the clearance of the thickness of the convex portion between the end surface of the upper pipe inserted by being guided by sliding down. Since the clearance is 0 when joining the end faces of the pipes by welding or the like, the thickness of the convex portion is 0, that is, the convex portion is not formed. Further, when joining the pipe end faces with a flange or the like, a packing is inserted between the pipe end faces, so that the thickness of the convex portion is 0, that is, the convex portion is not formed.

The inner surface of the enlarged opening and the convex portion are provided with a material which is softer and more cushioning than a slip buffering material, such as Teflon steel material, and which has a low friction coefficient and is slippery. It can be guided smoothly without being damaged even if it hits.

After securing an accurate clearance to the lower pipe and installing the upper pipe, remove the fastening tool, open the cylindrical space around the hinge, and remove the installation device. The convex portion of the sliding cushioning material sandwiched between them can be easily removed without damaging the end face of the pipe.

[0015]

EXAMPLE An installation apparatus of an example will be described with reference to FIGS.

This installation device 1 has an inner surface 2 having a substantially semicircular cross section.
One body member 2, 2 is connected by a hinge 3, and a fastener 5 having a bolt 4 having a base end rotatably attached to the other end is attached to the other end, and a tubular shape that can be opened and closed inside A space 6 is provided. The lower end of the cylindrical space 6 is a cylindrical portion 7, the inner diameter of which is such that fitting pipes can be fitted and fixed, and the central portion has a large diameter portion 8.

The upper end of the cylindrical space 6 forms a frustoconical enlarged opening 9, which opens upward and has a slip buffering material 10 such as Teflon resin laminated on its inner surface. At the peripheral edge of the boundary between the cylindrical portion 7 and the enlarged opening portion 9, a convex portion 11 composed of two semi-annular rings of the slip buffering material 10 is laterally projected. The thickness of this convex portion 11 is set to a dimension corresponding to the clearance between the pipe end faces to be installed.
In addition, this installation device is provided with a slit-shaped peephole 12 by notching the upper end portion of one end surface (mounting side of the installation tool 5) of the body members 2 and 2.

This installation device has the above configuration. An example of installing and connecting the upper and lower pipes oriented in the vertical direction using this device will be described below.

As shown in FIG. 3, the pipe 13-1 located vertically downward is sandwiched by the self-weight fixing device 14, and is fixed to a building, a plant or the like through a through sleeve or the like. The surface of this pipe 13-1 is subjected to anticorrosion treatment 15, and an iron ring 16 for connecting with a victoric joint is welded to the upper end portion thereof, and is inserted between the victoric joint and the pipe. The rubber ring 17 is temporarily inserted.

The installation device 1 is attached to the upper end of the pipe 13-1 with the enlarged opening 9 facing upward.

The tip of the pipe 13-1 is fitted into the cylindrical portion 7 until it comes into contact with the convex portion 11, and the bolt 4 of the tightening tool 5 is tightened and fixed. At this time, the iron ring 16 is housed in the large diameter portion 8.

The upper pipe 13-2, which is to be connected with its central axis aligned, is hung on the installation device thus installed until the end face comes into contact with the projection 11 in the enlarged opening 9. Vertical piping 13
Between -1 and 13-2, a clearance 18 corresponding to the thickness of the convex portion 11 is automatically set as shown in FIG. This clearance 18 can be visually confirmed through the observation window 12. In this state, the upper pipe 13-2 is fixed to a building or the like. When installing the pipes one by one, the self-weight fixing device 14 or the like as described above is used. When installing a piping unit in which a plurality of pipes are integrated, for example, a patent publication (Sho 54)
The use of the pipe mounting device proposed in No. 34173) is preferable because of its high work efficiency.

After fixing the upper and lower pipes 13-1 and 13-2, the bolt 4 of the fastener 5 of the installation device 1 is loosened, the hinge 3 is rotated to open the cylindrical space 6, and the convex portion 11 is formed on the end surface. Slide it out and remove it.

The rubber ring 17 temporarily fitted in the pipe 13-1 is moved to sandwich the circumference of the joint between the pipes, and the victoric connection joint 19 shown in FIG. Tighten the bolt 20 and fit the iron ring 16 into the recess on the inner surface of the joint as shown in FIG.
Connection between 1 and 13-2 is fixed.

In the installation apparatus of the embodiment, a slip buffering material such as a Teflon resin layer is adhesively laminated on the inner surface of the body member, and its end portion is laterally projected to form a convex portion. It can be diverted repeatedly until the elastic material comes into contact with the end surface of the pipe and is damaged. Further, the sliding cushioning material may be hollowed out to form the enlarged opening portion and the convex portion integrally or separately, which can be detachably attached to the inside of the body member. In this case, even if the hollow-molded material is greatly damaged, the body member body can be diverted by exchanging the hollow-molded material.

Further, the apparatus of the embodiment is provided with a peep window 12,
The clearance can be confirmed visually, but it is not always necessary.

[0027]

The installation device for this pipe is as described above, and has the following effects.

The upper connecting pipe can be easily and accurately guided to the lower connecting pipe end, and the work efficiency is improved.

A clearance between the end faces can be accurately ensured, and a highly accurate connection can be made by a Victaulic type connection joint, a flange joint, or welding.

There is no risk of damaging the anticorrosion treatment of the end face of the pipe.

The work efficiency can be applied to the installation of a unit in which a plurality of pipes are integrated.

The installation device can be diverted repeatedly.

[Brief description of drawings]

FIG. 1 is a plan view showing an installation apparatus of an embodiment, in which the right side is viewed from above and the left side is viewed from below.

FIG. 2 is a vertical sectional view of a cylindrical space of the installation device.

FIG. 3 is a front view showing a partial cross section of a state in which an installation layer is attached to the upper end of the lower pipe and the upper pipe is slid down.

FIG. 4 is a front view showing a partial cross section of a state in which the pipe is slid down from above and installed on the upper end of the pipe to which the installation device is attached.

FIG. 5 is a front view of a victoric joint.

FIG. 6 is a cross-sectional view between pipe ends connected by a victoric joint.

[Explanation of symbols]

1 ... Installation device, 2 ... Body member, 3 ... Hinges, 4 ... Bolts, 5
... Fasteners, 6 ... Cylindrical space, 7 ... Cylindrical part, 8 ... Large diameter part, 9
... Enlarged opening, 10 ... Slip cushioning material, 11 ... Convex part (slip cushioning material), 12 ... Peep window, 13-1 ... Lower piping, 13-2 ... Upper piping, 14 ... Self-weight fixing tool, 15 ...
Anticorrosion treatment, 16 ... Iron ring, 17 ... Rubber ring, 18 ...
Clearance, 19 ... Victoric type connection joint, 20 ...
bolt.

Front page continued (72) Koichiro Kurokawa, Inventor Koichiro Kurokawa 1-3-8 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd. Tokyo Branch (72) Masayuki Matsumoto 1421-25, Hara-shi, Ageo-shi, Saitama Prefecture

Claims (1)

[Claims] 1. A device which is attached to a pipe upper end to be connected and which is vertically arranged and which guides and positions a pipe lower end to be connected which slides down from above toward a lower pipe upper end and is installed. The installation device has two cylindrical members having a substantially semicircular cross section on the inner surface, one side of which is connected by a hinge, and a fastener is attached to the other side to provide a freely openable and closable cylindrical space. The lower end forms a cylindrical portion that is fitted and fixed to the upper end of the lower pipe, and the upper end of the tubular space has a slip buffering material on the inner surface, and forms an enlarged opening that guides the lower end of the upper pipe, The installation device for piping, wherein the convex portion of the slip buffering material projects laterally in the peripheral edge portion between the portion and the enlarged opening, and the thickness thereof corresponds to the clearance to be provided between the end faces of the piping.