JP2007245258A - Tool for connecting pipe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for connecting a pipe for easily, surely and safely performing a connecting or temporarily assembling work of a flange connecting type pipe by a single worker. <P>SOLUTION: The tool is used when connecting or temporarily assembling the pipes 11 and 12 having flange type connecting parts. The tool is provided with two mutually opposed holding plates 41 and 42 provided with holes to hold the pipes 11 and 12, and a slide guide 5 for movably setting the holding plates 41 and 42 in axial center directions of the pipes 11 and 12. The holding plates 41 and 42 may be provided with pipe holding mechanisms for holding the pipes 11 and 12 by a movable type clamp, and the slide guide 5 may be provided with a lock mechanism. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention mainly relates to a pipe connecting jig used when connecting a pipe having a flange-type connecting portion.

  Conventionally, threaded joints, flange-type joints (connecting portions), welded joints, and the like are used for connecting pipes.

  When connecting a flange-type joint, use a ferrule clamp, which is a special clamp that tightens the thumbscrew to reduce the diameter and tightens the flange joint. It is necessary to insert a ring-shaped ferrule packing to prevent leakage of liquid or gas flowing through the pipe (for example, Patent Document 1). A pipe joint and packing using an O-ring are also disclosed (Patent Document 2).

  When actually installing the pipes, hold the pipes to be connected one by one with two people, or hold one person in both hands and insert the ferrule packing between the flanges of both pipes. It is necessary to apply the ferrule clamp and tighten the ferrule clamp screw.

  Also, during piping work, the pipes are temporarily assembled to confirm the length after the pipes are connected. In that case, it is necessary to use the ferrule clamp and ferrule packing that are actually assembled. It is necessary to perform the same operation as above.

  In the connection of the flange-type pipe, the ferrule packing is inserted between the pipes to be connected for the purpose of preventing leakage of substances flowing in the pipe. If it is caught in the convex part of the flange, etc., the ferrule packing may be damaged, and there is a risk that the substance flowing in the pipe will leak in a working state.

JP-A-8-75062 Japanese Patent Laid-Open No. 9-14545

  It is very difficult for one person to carry out the above work, and at the same time, the probability of occurrence of problems such as breakage of the ferrule packing increases. In addition, it is not always possible to carry out work by two people.

  Under such circumstances, an object of the present invention is to provide a pipe connection jig for easily, surely and safely performing flange connection type pipe connection and temporary assembly work by one worker. There is.

  In order to solve the above-described problems, a pipe connection jig according to the present invention is a pipe connection jig used when connecting or temporarily assembling pipes having flange-type connection portions, and holds the pipe. It is characterized by comprising two holding plates opposed to each other provided with a hole and a slide guide for setting the holding plate movably in the axial direction of the pipe.

  The pipe connection jig according to the present invention is a pipe connection jig used when connecting or temporarily assembling pipes having flange-type connection portions, and holding the pipe by a movable clamp. Two holding plates facing each other provided with a mechanism, and a slide guide that sets the holding plate to be movable in the axial direction of the pipe are provided.

  The slide guide may be provided with a lock mechanism for fixing the position of the holding plate.

  By doing so, the pipe connection jig of the present invention has a function of temporarily holding the pipe to be connected at the time of connection of the flange-type pipe and temporary assembly work. Moreover, it has the function to match | combine the connection flange part of two piping which it is going to connect. Moreover, when the connection flange part of piping to be connected is match | combined, the function which can hold | maintain the position will be provided.

  By using the pipe connection jig of the present invention, during connection work or temporary assembly work in flange-type pipes, both pipes to be connected are temporarily held, ferrule packing inserted, and connection flange parts Temporary temporary joining can be performed by one person. In addition, if the pipe connection jig of the present invention is attached, both pipes will not shake or move, so the ferrule packing can be installed at the proper assembly position, and damage to the ferrule packing can be avoided. . Further, since the ferrule clamp for the main assembly can be attached in this state, the connecting operation can be performed reliably and safely.

  In addition, since the pipe can be prevented from shaking and moving during work, the work safety is excellent. This is particularly effective in places where it is necessary to avoid contact with surrounding equipment when performing other pipe connection work, such as places handling hazardous materials and places handling chemicals.

  Embodiments of the present invention will be described below with reference to the drawings.

  (Embodiment 1) First, FIG. 4 is a front view showing a general connecting mechanism of a pipe having a flange type connecting portion. However, the lower part of the ferrule clamp of the connecting portion is removed to show the inner ferrule packing and the flange portion. Two flange-type pipes 11 and 12 are connected by using a ferrule clamp 3 through a ferrule packing 2.

  FIG. 1 shows a pipe connecting jig according to Embodiment 1 of the present invention, and FIG. 1 (a) is a front view when a pipe to be connected is attached to the pipe connecting jig. (B) is the right side view.

  First, a pipe connecting jig is attached to the pipes 11 and 12 to be connected, each having a flange type connecting portion. The pipe connecting jig is constituted by holding plates 41 and 42 and a slide guide 5 facing each other. The holding plates 41 and 42 are provided with holes 51 and 52 into which the pipes 11 and 12 are fitted. By holding the pipe in this way, it is possible for one worker to match the two flange-type connecting portions.

  (Embodiment 2) FIG. 2 is a front view showing a pipe connecting jig according to Embodiment 2 of the present invention. First, a pipe connecting jig is attached to the pipes 11 and 12 to be connected. The pipe connecting jig is constituted by holding plates 41 and 42 and a slide guide 6 with a lock mechanism. By holding the pipe in this way, it is possible not only for one worker to match the flange-type connecting portion, but also for working safely and reliably.

  (Embodiment 3) FIG. 3 shows a pipe connecting jig according to Embodiment 3 of the present invention, FIG. 3 (a) is a front view thereof, and FIG. 3 (b) is a right side view thereof. First, a pipe connecting jig is attached to the pipes 11 and 12 to be connected. The pipe connecting jig is constituted by holding plates 41 and 42 and a slide guide 6 with a lock mechanism. Further, the holding plates 41 and 42 are configured to have a movable clamp 7 (means that includes a movable support portion and grips and clamps the pipe) so that the pipes can be held at different pipe diameters.

  The pipe connecting jig of the present invention can be used when connecting a pipe having a flange-type connecting portion, but according to the present invention, since movement such as pipe shaking during work can be prevented, It is excellent in safety and should be used particularly effectively in piping connection where it is necessary to avoid contact with piping to be connected to surrounding equipment, such as where hazardous materials are handled or where chemicals are handled. Can do.

The piping connection jig | tool in Embodiment 1 of this invention is shown, FIG. 1 (a) is a front view when piping is attached to the piping connection jig | tool, FIG.1 (b) is the right view. The front view which shows the jig | tool for piping connection in Embodiment 2 of this invention. The piping connection jig | tool in Embodiment 3 of this invention is shown, Fig.3 (a) is the front view, FIG.3 (b) is the right view. The front view which shows the general connection structure of flange type piping.

Explanation of symbols

2 Ferrule packing 3 Ferrule clamp 5 Slide guide 6 Slide guide with lock mechanism 7 Movable clamps 11 and 12 Piping 41 and 42 Holding plates 51 and 52 Holes

Claims (3)

  A pipe connecting jig used when connecting or temporarily assembling pipes having flange-type connecting portions, two holding plates facing each other provided with holes for holding the pipes, and the holding A pipe connecting jig, comprising: a slide guide configured to set a plate to be movable in the axial direction of the pipe.   Two holding plates facing each other provided with a pipe holding mechanism for holding the pipe by a movable clamp, which is a pipe connecting jig used when connecting or temporarily assembling pipes having flange-type connecting portions And a slide guide for setting the holding plate movably in the axial direction of the pipe.   The pipe connection jig according to claim 1 or 2, wherein the slide guide is provided with a lock mechanism for fixing the position of the holding plate.

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