Flange centering tool

Abstract

The utility model discloses a tool for flange centering, and relates to the technical field of flange centering. The tool for flange centering comprises a flange, a flange front eye fixing ruler and a right-angle ruler, flange bolt holes are formed in the outer wall of the flange, and a three-way rear pipeline is arranged on the outer wall of the flange; the flange front eye fixing ruler consists of a transverse ruler, a vertical ruler and a fixed positioning block; a first sliding groove and a second sliding groove are formed in the outer wall of the top of the flange front eye fixing ruler, the outer wall of the first sliding groove is slidably connected with a movable positioning block, and the inner wall of the second sliding groove is slidably connected with a cross laser horizontal positioning instrument. According to the utility model, the cross laser horizontal locator is used for emitting cross laser rays to judge whether the flange is centered or not, and compared with the traditional way of aiming and measuring by virtue of eyes of a riveter, the device has a clear visual reference, reduces personal errors, can more accurately determine whether the assembled flange is a positive flange or not, and improves the detection accuracy. And the accuracy and stability of pipeline and valve connection are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange centering technical field especially relates to a flange centering tool. BACKGROUND

[0002] In all kinds of pipeline construction site all pipeline connection, valve connection flange group is needed to group for positive flange, however, the current in the group of positive flange operation and measure whether flange is in the positive eye state, the method commonly used is to help a set square and a straight board. The specific operation process is, when group is carried out, respectively the set square and steel plate are leaned on the flange eye of two flanges, and the riveter relies on naked eye observation to judge whether the two rulers are parallel. This kind of group measurement mode highly depends on the personal experience of the riveter, and lacks specific measurement data as support, leading to large group error. Therefore, we propose a kind of flange centering tool to solve the problems in the above background technology. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a kind of flange centering tool, solve the technical problem proposed in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of flange centering tool, including flange, flange positive eye fixed ruler, set square, the outer wall of the flange is provided with flange bolt hole, the outer wall of the flange is provided with three-way rear pipeline;

[0005] The flange positive eye fixed ruler is composed of horizontal ruler, vertical ruler and fixed positioning block;

[0006] The outer wall of the top of the flange positive eye fixed ruler is provided with sliding groove one and sliding groove two, the outer wall of the sliding groove one is slidably connected with mobile positioning block, the outer wall of the fixed positioning block and mobile positioning block is provided with adjusting groove, the inner wall of the adjusting groove is provided with positioning bolt, the outer wall of the positioning bolt is threadedly connected with locking block, the positioning bolt is inserted into the flange bolt hole, the inner wall of the sliding groove two is slidably connected with cross laser level positioning instrument.

[0007] Preferably, the line connected by the center of the two flange bolt holes is the center connecting line.

[0008] Preferably, the horizontal ruler, the vertical ruler and the fixed positioning block are integrally formed.

[0009] Preferably, the adjusting groove penetrates the fixed positioning block and the mobile positioning block, and the adjusting groove is strip-shaped.

[0010] Preferably, the locking block abuts against the outer wall of the flange after being tightened.

[0011] Preferably, the flange eye fixing scale is provided with a placing groove at the bottom outer wall, the shape of the placing groove is same with the flange eye fixing scale, the right angle scale is clamped in the placing groove, the bottom outer wall of the flange eye fixing scale is rotationally connected with a limiting plate, and the limiting plate is rotationally connected with the placing groove and is used for limiting and fixing the right angle scale.

[0012] Compared with the related art, the flange centering tool has the following beneficial effects:

[0013] 1. The flange centering tool is used for judging whether the flange is centered by means of the cross laser horizontal positioner emitting cross laser rays, has clear visual reference compared with the traditional riveting eye aiming measurement mode, reduces human error, can more accurately determine whether the flanged pipe is a right flange, and ensures the accuracy and stability of the pipe and valve connection.

[0014] 2. The flange centering tool is provided with a sliding groove and a movable positioning block on the flange eye fixing scale, the position of the movable positioning block can be flexibly adjusted according to the distance between the bolt holes of different flanges, the tool can be adapted to flanges of various specifications, the cross laser horizontal positioner can slide in the sliding groove, and the position can be adjusted according to actual measurement requirements to adapt to different centering measurement scenes.

[0015] 3. The flange centering tool is provided with a placing groove matched with the shape of the flange eye fixing scale at the bottom of the flange eye fixing scale, the right angle scale can be clamped in the placing groove, and the right angle scale is limited and fixed by rotating the limiting plate, which not only avoids loss or damage of the right angle scale during use, but also is convenient to carry and use in different construction sites. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the utility model;

[0017] Figure 2 It is a fixed scale structure schematic view of the utility model;

[0018] Figure 3 It is a fixed scale turnover structure schematic view of the utility model;

[0019] Figure 4 It is a fixed scale position structure schematic view of the utility model;

[0020] Figure 5 It is a schematic view of embodiment 2 of the utility model.

[0021] In the figure: 1, flange; 101, flange bolt hole; 102, three-way rear pipeline; 2, flange eyelet fixing ruler; 201, horizontal ruler; 202, vertical ruler; 203, fixed positioning block; 3, sliding groove one; 4, moving positioning block; 5, adjusting groove; 6, sliding groove two; 7, cross laser level positioning instrument; 8, positioning bolt; 9, locking block; 10, right angle ruler; 11, placing groove; 12, limiting plate. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment 1

[0024] Please refer to Figures 1-4 The present application provides a technical solution: a flange centering tool, comprising a flange 1, a flange eyelet fixing ruler 2, and a right angle ruler 10, the outer wall of the flange 1 is provided with a flange bolt hole 101, and the outer wall of the flange 1 is provided with a three-way rear pipeline 102.

[0025] The flange eyelet fixing ruler 2 is composed of a horizontal ruler 201, a vertical ruler 202, and a fixed positioning block 203.

[0026] The top outer wall of the flange eyelet fixing ruler 2 is provided with a sliding groove one 3 and a sliding groove two 6, the outer wall of the sliding groove one 3 is slidingly connected with a moving positioning block 4, the outer wall of the fixed positioning block 203 and the moving positioning block 4 are both provided with an adjusting groove 5, the inner wall of the adjusting groove 5 is penetratingly provided with a positioning bolt 8, the outer wall of the positioning bolt 8 is threadedly connected with a locking block 9, the positioning bolt 8 is penetratingly provided in the flange bolt hole 101, and the inner wall of the sliding groove two 6 is slidingly connected with a cross laser level positioning instrument 7.

[0027] Among them, the line connected by the centers of the two flange bolt holes 101 is the center connecting line.

[0028] Among them, the horizontal ruler 201, the vertical ruler 202, and the fixed positioning block 203 are integrally formed.

[0029] Among them, the adjusting groove 5 penetrates the fixed positioning block 203 and the moving positioning block 4, and the adjusting groove 5 is a strip-shaped.

[0030] Among them, the locking block 9 abuts against the outer wall of the flange 1 after being tightened.

[0031] In this implementation scheme, flange bolt holes 101 are selected and the center connection line is determined. On the flange 1 to be assembled, two adjacent flange bolt holes 101 are selected, and the line connecting the centers of these two flange bolt holes 101 is the center connection line. The flange eye fixing ruler 2 is adjusted and fixed. Since the movable positioning block 4 is slidably connected on the slide groove 3, the distance between the movable positioning block 4 and the fixed positioning block 203 can be adjusted by moving the movable positioning block 4 on the slide groove 3, so that the two are aligned with the two selected adjacent flange bolt holes 101 respectively. Both the fixed positioning block 203 and the movable positioning block 4 are provided with strip-shaped adjustment grooves 5. The positioning bolt 8 is passed through the adjustment groove 5 and inserted into the corresponding flange bolt hole 101. Then, the locking block 9 is tightened on the positioning bolt 8 so that it abuts against the outer wall of the flange 1, thereby firmly installing the flange eye fixing ruler 2 on the flange 1, while ensuring that the flange eye fixing ruler 2 is parallel to the center connection line of the two bolt holes.

[0032] Open the cross laser level 7, which is installed in the slide groove 2 6 and can be slidably adjusted, and make it emit a cross laser beam. Use measuring tools such as a ruler to observe the positional relationship between the cross laser beam and the center line of another flange, the pipe 102 after the tee, and the pipe after the elbow. If the beam is parallel to these components, it indicates that the assembled flange is a positive flange; if it is not parallel, it indicates that the flange is misaligned.

[0033] Example 2:

[0034] This embodiment is a further optimization of Embodiment 1. Based on Embodiment 1, as follows: Figure 5 As shown, a placement groove 11 is provided on the bottom outer wall of the flange eye fixing ruler 2. The shape of the placement groove 11 is the same as that of the flange eye fixing ruler 2. The right angle ruler 10 is snapped into the placement groove 11. The bottom outer wall of the flange eye fixing ruler 2 is rotatably connected to a limiting plate 12. After the limiting plate 12 rotates to be perpendicular to the placement groove 11, it limits and fixes the right angle ruler 10.

[0035] In this embodiment, after the right-angle ruler 10 is used, it is re-snap into the placement slot 11, and the limiting plate 12 is rotated to make it perpendicular to the placement slot 11, thereby limiting and fixing the right-angle ruler 10 for the next use.

[0036] Working principle: the flange eye fixed ruler 2 is fixed in two adjacent flange bolt holes 101 of the flange 1 by the flange bolt holes 101, and the flange eye fixed ruler 2 is parallel to the center connecting line of the two flange bolt holes 101, then the cross laser horizontal positioner 7 on the flange eye fixed ruler 2 is opened, the cross laser horizontal positioner 7 emits cross laser rays, at this time, the straightedge 10 can be used for measurement, whether it is parallel, if the rays are parallel to the other flange center line, three-way pipe, elbow pipe, it can prove that the flange of the group is a positive flange, if it is not parallel, the error can be adjusted according to the measurement until the rays are parallel to it.

[0037] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A tool for flange alignment, comprising a flange (1), a flange square eye fixing ruler (2), a right angle ruler (10), characterized in that: The outer wall of the flange (1) is provided with a flange bolt hole (101), and the outer wall of the flange (1) is provided with a three-way rear pipeline (102). The flange eye fixing ruler (2) is composed of a horizontal ruler (201), a vertical ruler (202) and a fixed positioning block (203). The top outer wall of the flange eye fixing ruler (2) is provided with a sliding groove one (3) and a sliding groove two (6), the outer wall of the sliding groove one (3) is slidably connected with a movable positioning block (4), the outer wall of the fixed positioning block (203) and the movable positioning block (4) is provided with an adjusting groove (5), the inner wall of the adjusting groove (5) is provided with a positioning bolt (8), the outer wall of the positioning bolt (8) is threadedly connected with a locking block (9), the positioning bolt (8) is inserted into the flange bolt hole (101), and the inner wall of the sliding groove two (6) is slidably connected with a cross laser level positioning instrument (7).

2. A flange alignment tool as claimed in claim 1, characterised in that: The center connecting line of the two flange bolt holes (101) is a center connecting line.

3. A flange alignment tool as defined in claim 1 wherein: The horizontal ruler (201), the vertical ruler (202) and the fixed positioning block (203) are integrally formed.

4. A flange alignment tool as defined in claim 1 wherein: The adjusting groove (5) penetrates the fixed positioning block (203) and the movable positioning block (4), and the adjusting groove (5) is strip-shaped.

5. A flange alignment tool as defined in claim 1 wherein: The locking block (9) is in abutment with the outer wall of the flange (1) after being tightened.

6. A flange alignment tool as defined in claim 1 wherein: The bottom outer wall of the flange eye fixing ruler (2) is provided with a placing groove (11), the shape of the placing groove (11) is the same as that of the flange eye fixing ruler (2), the right-angle ruler (10) is clamped in the placing groove (11), the bottom outer wall of the flange eye fixing ruler (2) is rotatably connected with a limiting plate (12), and the limiting plate (12) is rotatably perpendicular to the placing groove (11) to limit and fix the right-angle ruler (10).

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