A flange pipe height adjustment tool

Abstract

This utility model relates to the field of pipe welding technology, and discloses a flange pipe height adjustment fixture, including an adjustment base with a flange pipe insertion hole formed in the middle of the adjustment base; a pair of symmetrically arranged adjustment screws A and two sets of adjustment screws B are screwed to the outer edge of the adjustment base, and the two sets of adjustment screws B are symmetrically arranged about the center line connecting the two adjustment screws A. This solves the problems of easy flange damage, low installation accuracy, and low installation efficiency in existing flange pipe installation methods.

Description

Technical Field

[0001] This utility model relates to the field of pipe welding technology, and in particular to a flange pipe height adjustment tool. Background Technology

[0002] In industrial production, the installation of flanges on cylindrical containers is a common operational step. Traditional flange installation typically involves placing the flange directly on the container, roughly determining the installation height using tools like a measuring tape, and then spot welding it to the container. After spot welding, the flange's height and position must be checked again using measuring tools. If the installation is found to be incorrect, the flange needs to be hammered to change its position, or even disassembled and re-welded. This installation method has many drawbacks. Frequent hammering and disassembly can easily damage the flange, affecting its structural strength and sealing performance. Furthermore, the lack of precise positioning methods makes it difficult to guarantee installation accuracy, leading to flange installation deviations and affecting the overall operation of the equipment. In addition, the repeated adjustments and re-welding process makes the installation cumbersome, significantly reducing installation efficiency and increasing labor and time costs. Therefore, there is an urgent need to design an auxiliary device for flange installation that can overcome these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a flange pipe height adjustment tool to solve the problems of easy flange damage, low installation accuracy, and low installation efficiency in existing flange pipe installation methods.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A flange pipe height adjustment fixture includes an adjustment base, the center of which is formed with a flange pipe insertion hole; a pair of symmetrically arranged adjustment screws A and two sets of adjustment screws B are screwed to the outer edge of the adjustment base, the two sets of adjustment screws B being symmetrically arranged about the center line connecting the two adjustment screws A.

[0006] With the above technical solution, when installing a flange, first rotate adjusting screw A to make the two adjusting screws A extend out of the adjusting base to the same length. The position between the bottom of adjusting screw A and the upper end face of the adjusting base is the installation height of the flange pipe. Then, the extension length of adjusting screw B can be calculated according to the outer diameter of the cylindrical container. The extension lengths of adjusting screws A and B can be measured with calipers. After adjusting the extension lengths of adjusting screws A and B, place this fixture on the upper part of the cylindrical container in the area where the flange pipe needs to be installed. At this time, the lower ends of adjusting screws A and B are abutting against the outer wall of the cylindrical container. Then, insert the pipe part of the flange pipe into the flange pipe insertion hole, and the flange part of the flange pipe is against the adjusting base, thereby determining the installation height of the flange pipe. Then, weld the flange pipe to the cylindrical container. During welding, this fixture can restrict the position of the flange pipe to prevent it from tilting or moving, thereby improving the installation accuracy.

[0007] The present invention is further configured such that the adjusting screw A and the adjusting screw B are on the same pitch circle, which reduces the calculation work of the height difference between the adjusting screw A and the adjusting screw B, thereby improving the adjustment efficiency.

[0008] This invention is further configured such that: the set of adjusting screws B consists of two screws, which are symmetrically arranged about the perpendicular bisector of the line segment connecting the midpoints of the two adjusting screws A. This further reduces the workload of calculating the height difference between adjusting screws A and B, as there is only one height difference between them, facilitating the adjustment of adjusting screws A and B.

[0009] The present invention is further configured such that: the adjusting base includes a separate outer ring and an inner ring, which are coaxially arranged; the flange pipe insertion hole is formed on the inner ring, and the adjusting screw A and adjusting screw B are screwed on the outer ring. By separating the adjusting base, when different specifications of flange pipes need to be installed, only the inner ring needs to be replaced, while the outer ring and screws are interchangeable, which can improve practicality and adaptability.

[0010] The present invention is further configured such that: multiple positioning pins are fixed on the inner ring, and the flange part of the flange pipe can be positioned by the positioning pins, thereby further improving the installation accuracy.

[0011] This invention is further configured such that: the inner ring comprises two separate semicircular rings; each semicircular ring has two threaded holes formed on its outer wall, and the outer ring has four through holes aligned with the threaded holes one by one. A screw C is fitted into each through hole, and the screw C is screwed onto the threaded hole. By separating the inner rings, the two semicircular rings can be removed from the flange after welding by unscrewing the screw C, thereby further facilitating the welding work of the flange and further ensuring the installation height accuracy of the flange.

[0012] The outstanding effect of this utility model is:

[0013] Compared with existing technologies, the installation accuracy is improved: by precisely adjusting screw A and screw B, the installation height and position of the flange pipe can be accurately controlled, avoiding installation deviations, and the installation accuracy is significantly improved compared with traditional methods.

[0014] Protecting flange pipes: This tooling eliminates the need for hammering or disassembling flange pipes during installation, effectively preventing damage and ensuring the quality and performance of the flange pipes.

[0015] Improved installation efficiency: The installation process has been simplified, reducing repetitive operations caused by inaccurate installation, shortening installation time, and improving overall installation efficiency.

[0016] High versatility: The split design of the adjusting base makes the outer ring and screw interchangeable. Only the inner ring needs to be replaced to adapt to the installation of flange pipes of different specifications, which reduces production costs and improves the applicability of the tooling. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the assembly of the present invention with a container and flange pipe;

[0018] Figure 2 This is a schematic diagram of the structure of this utility model;

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Reference numerals: 1. Adjusting base; 11. Outer ring; 111. Through hole; 12. Inner ring; 121. Semicircular ring; 122. Screw hole;

[0021] 101. Flange socket hole; 102. Pitch circle;

[0022] 2. Adjust screw A;

[0023] 3. Adjust screw B;

[0024] 4. Screw C;

[0025] 8. Flange pipe;

[0026] 9. Cylindrical container. Detailed Implementation

[0027] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0028] The following is for reference Figures 1 to 3The present invention will be described as follows:

[0029] A flange pipe height adjustment fixture includes an adjustment base 1, wherein a flange pipe insertion hole 101 is formed in the middle of the adjustment base 1; a pair of symmetrically arranged adjustment screws A2 and two sets of adjustment screws B3 are screwed to the outer edge of the adjustment base 1, and the two sets of adjustment screws B3 are symmetrically arranged about the center line connecting the two adjustment screws A2.

[0030] With the above technical solution, when installing flange pipe 8, first rotate adjusting screw A to make the two adjusting screws A extend out of the adjusting base at the same length. The position between the bottom of adjusting screw A and the upper end face of the adjusting base is the installation height of the flange pipe. Then, the extension length of adjusting screw B can be calculated according to the outer diameter of the cylindrical container 9. The extension lengths of adjusting screws A and B can be measured with calipers. After adjusting the extension lengths of adjusting screws A and B, place this fixture on the upper part of the cylindrical container in the area where the flange pipe needs to be installed. At this time, the lower ends of adjusting screws A and B are abutting against the outer wall of the cylindrical container. Then, insert the pipe part of the flange pipe into the flange pipe insertion hole, and the flange part of the flange pipe is against the adjusting base, thereby determining the installation height of the flange pipe. Then, weld the flange pipe to the cylindrical container. During welding, this fixture can restrict the position of the flange pipe to prevent it from tilting or moving, thereby improving the installation accuracy.

[0031] Preferably, the adjusting screws A2 and B3 are on the same pitch circle 102, which reduces the calculation work for the height difference between adjusting screws A and B, thereby improving the adjustment efficiency.

[0032] Preferably, the set of adjusting screws B3 consists of two screws, symmetrically positioned about the perpendicular bisector of the line segment connecting the midpoints of the two adjusting screws A2. This further reduces the workload of calculating the height difference between adjusting screws A and B, as there is only one height difference between them, facilitating the adjustment of both screws.

[0033] The adjusting base 1 includes a separate outer ring 11 and an inner ring 12, which are coaxially arranged. The flange pipe insertion hole 101 is formed on the inner ring 12, and the adjusting screws A2 and B3 are screwed onto the outer ring 11. By separating the adjusting base, when different specifications of flange pipes need to be installed, only the inner ring needs to be replaced, while the outer ring and screws are interchangeable, which can improve practicality and adaptability.

[0034] Preferably, a plurality of positioning pins 13 are fixed on the inner ring 12, which can be used to position the flange part of the flange pipe, thereby further improving the installation accuracy.

[0035] Preferably, the inner ring 12 comprises two separate semicircular rings 121; each semicircular ring 121 has two screw holes 122 formed on its outer wall, and the outer ring 11 has four through holes 111 aligned with the screw holes 122. A screw C4 is fitted into each through hole 111, and the screw C4 is screwed into the screw holes 122. By separating the inner rings, the two semicircular rings can be removed from the flange after welding by unscrewing the screw C, thus further facilitating the welding of the flange and ensuring the installation height accuracy of the flange.

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A flange pipe height adjusting tooling, comprising an adjusting base (1), characterized in that: The center of the adjusting base (1) is formed with a flange pipe insertion hole (101); the outer edge of the adjusting base (1) is screwed with a pair of symmetrically arranged adjusting screws A (2) and two sets of adjusting screws B (3), and the two sets of adjusting screws B (3) are symmetrically arranged about the center line connecting the two adjusting screws A (2).

2. The flange pipe height adjustment fixture according to claim 1, characterized in that: The adjusting screws A (2) and B (3) are on the same pitch circle.

3. The flange pipe height adjustment fixture according to claim 1, characterized in that: The set of adjusting screws B (3) consists of two screws, which are symmetrically arranged about the perpendicular bisector of the line segment connecting the midpoints of the two adjusting screws A (2).

4. The flange pipe height adjustment fixture according to claim 1, characterized in that: The adjusting base (1) includes an outer ring (11) and an inner ring (12) that are separately arranged, and the outer ring (11) and the inner ring (12) are coaxially arranged; the flange tube insertion hole (101) is formed on the inner ring (12), and the adjusting screw A (2) and the adjusting screw B (3) are screwed on the outer ring (11).

5. The flange pipe height adjustment fixture according to claim 4, characterized in that: Multiple positioning pins (13) are fixed on the inner ring (12).

6. The flange pipe height adjustment fixture according to claim 4, characterized in that: The inner ring (12) includes two separate semi-circular rings (121); each semi-circular ring (121) has two screw holes (122) formed on its outer wall, and the outer ring (11) has four through holes (111) that are aligned with the screw holes (122) one by one. A screw C (4) is sleeved in the through hole (111), and the screw C (4) is screwed into the screw hole (122).

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