JP2015093374A - Flange fitting jig - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a jig eliminating the need of inserting a handle of a tool or a round-rod bent in an L-shape in a bolt hole and driving in the handle of the tool to rotate, when matching the shifting of flanges at a flange connecting portion during attaching of piping or replacing of a gasket.SOLUTION: A round-rod 3 inserted in a bolt hole of one flange is provided at a tip end portion of an arm 1. On the inside of a fork-shaped attaching portion 2 at a rear end portion, a pushing plate 5 which has an L-shape attached to a tip end of a handle 7 and pushes a side surface of the other flange is rotatably provided by a pin 4.

Description

  This invention is a jig used to adjust the flange gap of the flange connection part when installing pipes or exchanging gaskets. Insert a round bar attached to the arm into the bolt hole of one flange to be adjusted. The jig is attached to the tip of the handle by pushing the handle, and is related to a jig that presses the side of the other flange with an L-shaped plate that is pin-coupled to this arm.

  Conventionally, when fitting pipes or replacing gaskets, in order to adjust the flange misalignment of the flange connection part, a tool handle or a round bar bent into an L shape is inserted into the bolt hole, or the tool handle is driven and rotated. I was matching. When a large force is required or when the bolt hole cannot be used due to a large difference, the piping itself is pulled using a chain block or the like.

This has the following drawbacks.
When installing pipes or replacing gaskets, the conventional method of adjusting the flange misalignment of the flange connection part has a small force to adjust, and the one inserted into the bolt hole may come off, which is particularly problematic in working safety at high places. was there. In addition, when a large force was required to match, or when the bolt hole could not be used due to a large difference, the piping itself had to be pulled using a chain block or the like, which took time to set up and clean up.
The present invention has been made to eliminate these drawbacks.

  In order to eliminate the above disadvantages, a round bar (3) to be inserted into the bolt hole of one flange (Aa) is provided at the front end of the arm (1), and the rear end is provided inside the bifurcated attachment (2). A flange aligning jig that is L-shaped attached to the tip of the handle (7) and has a push plate (5) that presses the side surface of the other flange (Ab) so as to be rotatable by a pin (4).

  Need to insert tool handle or round bar bent into L shape into bolt hole, or drive tool handle to rotate in order to match flanges in flange connection when installing pipes or replacing gaskets. Rather, by inserting a round bar attached to the arm into the bolt hole of one flange to be fitted, and pressing the handle connected to the arm with a pin, the L-shaped plate at the tip of the handle The side of the flange can be pushed together with greater force than the conventional method by lever principle. In addition, it is possible to cope with an increase in the bolt hole, and it is also possible to extend the handle with a pipe or the like without having to use a chain block or the like that requires time and effort for setup and cleaning. Thereby, the cost can be reduced in the above-mentioned work from shortening the time for flange alignment and improving safety.

Hereinafter, the best mode for carrying out the present invention will be described.
A round bar (3) to be inserted and hooked into the bolt hole of one flange (Aa) is provided at the tip of the arm (1), and a handle (7) is provided at the rear end inside the bifurcated attachment (2). The push plate (5) is pushed with the pin (4) by pushing the side of the other flange (Ab) with the push portion (6) in the L shape attached to the push plate attachment portion (8) with the fixing pin (9) It is a flange alignment jig having a structure that is rotatably provided.

  The present invention will be described with reference to flange alignment in a state where the flanges (Aa) and (Ab) attached to the pipes (Ba) and (Bb) are different as shown in FIG. Insert the round bar (3) into the bolt hole where the flange (Aa) is the largest, and hold the arm (1) with your hand while holding the handle (7) with your other hand. While moving to the left and right, press and hold the flange (Ab) to the flange (Aa). When a large force is required, extend the handle (7) with a pipe or the like and match it in the same way.

Perspective view of the present invention Side view of the present invention Plan view of the present invention Mounting perspective view of the present invention The perspective view of flange alignment completion of the present invention Side view of flange alignment completion of the present invention

DESCRIPTION OF SYMBOLS 1 ... Arm 2 ... Forked attachment part 3 ... Round bar 4 ... Pin 5 ... Pushing plate 6 ... Pushing part 7 ... Handle 8 ... Pushing plate attachment part 9 ... Fixed pin Aa, Ab ... Flange Ba, Bb ... Piping

Claims (1)

  A round bar to be inserted into the bolt hole of one flange is provided at the tip of the arm, and the side of the other flange is pushed in the L-shape attached to the tip of the handle inside the bifurcated attachment at the rear end. Flange alignment jig with a push plate that can be rotated with pins.

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