JP2016068244A - Bolt hole adjusting tool hole leveler of flange - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tool usable regardless of size, and capable of extremely quickly, accurately and safely executing work, for adjusting a bolt hole of a flange in piping work and duct work.SOLUTION: A lock pin 1 of a hole leveler is inserted into a bolt hole 7A of a flange. A two-point type lock arm 2 is lowered, and the lock pin 1 is fixed from the outside of the flange 6A. The lock pin is automatically surely fixed toward a central point of the flange by becoming a three-point fixation. A horizontal adjustment bolt 3 is laterally moved and horizontally fixed. While pushing a press bolt 4 by adjusting to the flange 6B, bolt holes 7A and 7B are adjusted. Bolt hole adjusting work is easily, safely and quickly executed.SELECTED DRAWING: Figure 3-2

Description

The present invention relates to a tool capable of easily aligning bolt holes in piping work and duct work using a flange.

Background technology

In piping construction, the flanges used vary in size depending on the diameter of the piping, and the shapes are also different. The chain block is used to perform the work, and a ball core rod-like member is inserted into the bolt hole and forcibly inserted with a hammer or the like. Patent Document 1 is a flange face alignment tool suitable for connecting large-diameter pipes used in plant equipment, such as nuclear power equipment.

  JP 2004-243498 A

Since the flange face alignment tool of Literature 1 is connected as 10A and 10B, it is convenient, but the place of use is limited.
The tool of Document 1 uses a jackie and is large-scale, and there are difficulties in work and installation place in the construction of small and medium-sized pipes and ducts.
Reference 1 Claim 3 Although the lock pin can be attached and detached, attaching and detaching also takes time.
The hole leveler is a tool that can be used regardless of the size of the pipe and the shape of the flange, and can easily align the bolt holes of the flange, and has been made to solve these drawbacks.

In order to solve the above problems, a single unit is used and two units are used. The installation place is not limited, and it is possible to work freely where necessary. This is also convenient for small diameter pipes that can be used alone. It is small, easy to handle, and extremely easy to carry and store.
The hall leveler is fixed at three points , that is, when the lock pin 1 is fixed from the outside of the flange with the two-point lock arm 2, it automatically locks toward the center point of the flange. Can be moved, kept horizontal and fixed.
Then, if it presses with the press volt | bolt 4, a bolt hole can be match | combined. This invention is a flange bolt hole alignment tool hole leveler which consists of the above structure.

Since the present invention is fixed at three points, it is automatically fixed toward the center of the flange without the blur of the hole leveler itself. There, the horizontal adjustment bolt 3 can be moved to the left and right to maintain and keep the level. 100% force can be easily transmitted to the press bolt 4.
Regardless of flange thickness and size, it can be used without any problem. The bolt hole alignment work of the flange can be performed quickly, accurately and safely. Moreover, it is not necessary to replace the lock pin 1.
▲ 1 ▼ Lock pin
Insert into the bolt hole of the flange
Easy to enter because it is thinner than the flange bolt diameter.
Press the lock pin at two points from the outer circumference of the flange
Fix the hall leveler at the three points of the lock pin and 2-point lock arm. (3) Horizontal adjustment bolt (movable left and right)
Fix the hall leveler horizontally ▲ 4 ▼ Press bolt (movable up and down)
Jackie's role
Align with the bolt hole of the flange ▲ 5 ▼ Nut ▲ 6 ▼ Flange A B
(7) Flange bolt hole A B

  Hall leveler overview   Side view of hall leveler in use   Front view of hall leveler in use

Photo 2-1 Side view of hall leveler in use Photo 2-2 Top view of hall leveler in use

The hall leveler usage will be described below with reference to the accompanying drawings.
3-2 is a side view in use.
(1) Insert the lock pin 1 into the bolt hole 7A of the flange 6A. (2) Lower the two-point lock arm 2 and press it with 2 from the outer circumference of the 6A. (3) Fix horizontally with the horizontal adjustment bolt 3 Move according to the thickness of the flange (1) to (3) to complete the setup (4) Press the bolt 4 , Align 7A7B while pressing to 6B. The flange bolt hole alignment operation is complete.
With the use of a hole leveler, the bolt hole alignment work of the flange is easily and safely performed quickly.
The hall leveler can be used as a single tool and can be provided as a tool suitable for small-diameter piping.
The hall leveler is usually used with two units. It can be used at any position of the bolt holes on the flange. The method of use is the same as above.

Hall leveler 1 Lock pin 2 Two-point lock arm 3 Horizontal adjustment bolt 4 Press bolt 5 Nut 6A Connecting flange 6B Connecting flange 7A Connecting bolt hole 7B Connecting bolt hole 8A Connecting pipe 8B Connecting pipe

Claims (1)

The lock pin 1 is inserted into the bolt hole of the flange and fixed from the outside of the flange with the two-point lock arm 2. That is, it is fixed at three points and is automatically locked toward the center point of the flange. Accordingly, the flange leveling tool hole leveler is characterized in that the horizontal adjustment bolt 3 is moved to fix the level and transmit 100% force to the press bolt 4.

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