Flange connection eccentric hole adjusting device

Abstract

The utility model discloses a flange connection eccentric hole adjusting device, which belongs to the technical field of flange connection and comprises an adjusting part main body, bolt head storage grooves are arranged on one side of the top and one side of the bottom of the adjusting part main body, and the adjusting part main body is positioned between an upper connecting flange plate and a lower connecting flange plate. The upper connecting flange plate and the lower connecting flange plate are connected in a staggered mode through the adjusting piece main body, the mounting holes distributed in the staggered mode can be adjusted within a certain range, and therefore the connecting piece can be used for connecting the upper connecting flange plate and the lower connecting flange plate in a staggered mode. The upper connecting flange plate and the lower connecting flange plate are connected with the adjusting part body through the mounting bolts, it is guaranteed that the upper connecting flange plate and the lower connecting flange plate are kept stable under adjusting and mounting of the adjusting part body, the device does not damage an original female part, damage to the female part and strength reduction are avoided, meanwhile, the device can be repeatedly used, and the cost is reduced. Cost is saved, and use is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of flange connection, in particular to a flange connection offset hole adjustment device. Background Art

[0002] The tower crane anemometer is connected to the fixed base and other common connections through flanges. When replacing, the holes often do not match. The hole deviation is not large, but the bolts cannot pass through and the connection fails. In the face of the above situation, the flange is usually re-drilled; the second is to customize an adapter. Re-drilling the hole will damage the parent material, and the replacement will not match again, increasing the overall cost and even losing the connection function. A customized adapter is only used once. If the data is inconsistent when it is replaced again, it needs to be re-customized, which increases the cost of use and prolongs the replacement cycle.

[0003] Even if you replace new parts with new ones purchased from the manufacturer, there may be situations such as supplier product upgrades and replacements, and the hole positions may not match. It is difficult to match the original position in actual work. You can only consider how to adapt it yourself. Customized connection devices are not economical and have poor applicability. The method of changing or expanding the hole destroys the original material, and the construction is difficult under some specific working conditions. Utility Model Content

[0004] The purpose of the utility model is to provide a flange connection offset hole adjustment device, which is used on each individual connection bolt. The two flanges to be connected can be rotated appropriately to achieve the offset connection of the two flanges. This connection method can meet the connection of flanges with equal number of holes without destroying the parent material. It is also suitable for the case of multiple speed difference. The range of adjustable deviation is equal to the hole spacing of the flange offset connection device. The versatility is improved, the investment is saved, and the problems raised in the above background technology are solved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange connection offset hole adjustment device, comprising an adjustment member body, a bolt head storage groove is provided on one side of the top and bottom of the adjustment member body, the adjustment member body is located between the upper connecting flange and the lower connecting flange, the surfaces of the upper connecting flange and the lower connecting flange are provided with offset mounting holes, two groups of connecting bolt holes are provided on the adjustment member body, the connecting bolt holes are connected with the bolt head storage groove, a mounting bolt is movably arranged in the bolt head storage groove, the mounting bolt passes through the adjustment member body and the upper connecting flange and the lower connecting flange in sequence and is threadedly connected with a mounting nut.

[0006] Preferably, an anti-rotation inner corner is provided on the inner side of the bolt head storage groove, and the bolt head of the mounting bolt is fitted to the inner wall of the anti-rotation inner corner.

[0007] Preferably, the thickness of the bolt head of the mounting bolt is the same as the thickness of the bolt head storage groove, and the upper surface and the lower surface of the adjusting member body are smooth and arranged in parallel.

[0008] Preferably, the two ends of the adjusting member body close to the connecting bolt hole are arranged in an arc shape, and the adjusting member body is distributed in a shuttle-shaped structure as a whole.

[0009] Preferably, the bolt head storage groove is arranged diagonally along the center point of the adjusting member body.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model connects the upper connecting flange and the lower connecting flange by means of the adjusting member body, and can adjust the displaced mounting holes within a certain range, and then use mounting bolts to connect the upper connecting flange and the lower connecting flange to the adjusting member body respectively, so as to ensure that the upper connecting flange and the lower connecting flange remain stable under the adjusting installation of the adjusting member body, and the device does not damage the original mother part, thus avoiding damage to the mother part and reduction in strength, and the device can be reused, saving costs and being easy to use.

[0012] 2. The utility model sets an anti-rotation inner angle, which makes it convenient to use the anti-rotation inner angle to limit the rotation of the bolt head of the mounting bolt when the mounting nut is installed on the mounting bolt, so that the mounting nut can be installed quickly, and at the same time, the mounting bolt and the mounting nut are prevented from rotating to cause the connection to become loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the split three-dimensional structure of the utility model;

[0015] Figure 3 It is a three-dimensional structural schematic diagram of the main body of the adjusting member of the utility model;

[0016] Figure 4 It is a three-dimensional structural schematic diagram of the adjusting member main body, the mounting bolts and the mounting nuts of the utility model.

[0017] Numbers in the figure: 1. Adjustment part body; 2. Bolt head storage slot; 3. Upper connecting flange; 4. Lower connecting flange; 5. Mounting hole; 6. Connecting bolt hole; 7. Mounting bolt; 8. Mounting nut; 9. Anti-rotation inner angle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figures 1 to 4 A flange connection offset hole adjustment device shown in the figure comprises an adjustment member body 1, a bolt head storage groove 2 is provided on one side of the top and bottom of the adjustment member body 1, the adjustment member body 1 is located between an upper connection flange 3 and a lower connection flange 4, and displaced mounting holes 5 are provided on the surfaces of the upper connection flange 3 and the lower connection flange 4, two groups of connection bolt holes 6 are provided on the adjustment member body 1, the connection bolt holes 6 are communicated with the bolt head storage groove 2, and a mounting bolt 7 is movably provided in the bolt head storage groove 2, and the mounting bolt 7 sequentially penetrates the adjustment member body 1 and the upper connection flange 3 and the lower connection flange 4 and is threadedly connected with a mounting nut 8;

[0020] The upper connecting flange 3 and the lower connecting flange 4 are connected by the adjustment member body 1, and the dislocation distribution of the mounting holes 5 can be adjusted within a certain range, and then the upper connecting flange 3 and the lower connecting flange 4 are respectively connected to the adjustment member body 1 by the mounting bolts 7, so as to ensure that the upper connecting flange 3 and the lower connecting flange 4 remain stable under the adjustment installation of the adjustment member body 1. The device does not damage the original mother part, thus avoiding damage to the mother part and reduction in strength. At the same time, the device can be reused, saving costs and being easy to use.

[0021] like Figure 4 As shown, in order to prevent the mounting bolt 7 from rotating and facilitate the installation of the mounting nut 8, an anti-rotation structure is also designed. An anti-rotation inner corner 9 is provided on the inner side of the bolt head storage groove 2. The bolt head of the mounting bolt 7 fits against the inner wall of the anti-rotation inner corner 9. Through the setting of the anti-rotation inner corner 9, when the mounting nut 8 is installed on the mounting bolt 7, the anti-rotation inner corner 9 is used to limit the rotation of the bolt head of the mounting bolt 7, so that the mounting nut 8 can be installed quickly. At the same time, the mounting bolt 7 and the mounting nut 8 are prevented from rotating, which would cause the connection to become loose.

[0022] like Figure 3 As shown, in order to ensure the stability of the adjusting member body 1 between the upper connecting flange 3 and the lower connecting flange 4, the size of the bolt head storage groove 2 is limited, the thickness of the bolt head of the mounting bolt 7 is the same as the thickness of the bolt head storage groove 2, and the upper surface and the lower surface of the adjusting member body 1 are smooth and parallel.

[0023] The two ends of the adjusting member body 1 close to the connecting bolt hole 6 are arranged in an arc shape, and the adjusting member body 1 is distributed in a shuttle-shaped structure as a whole. By limiting the shape of the adjusting member body 1, the outer surface of the adjusting member body 1 is ensured to be smooth and easy to turn.

[0024] The bolt head storage groove 2 is arranged diagonally along the center point of the adjusting member body 1 . By setting the position of the bolt head storage groove 2 , it is ensured that the adjusting member body 1 is connected to the upper connecting flange 3 and the lower connecting flange 4 in reverse.

[0025] During specific use, a corresponding number of adjusting component bodies 1 are located between the upper connecting flange 3 and the lower connecting flange 4 according to the number of mounting holes 5 on the upper connecting flange 3 and the lower connecting flange 4, and at the same time, mounting bolts 7 are passed through the connecting bolt holes 6 and the mounting holes 5, so that the bolt heads of the mounting bolts 7 are located in the bolt head storage groove 2, and the bolt heads of the mounting bolts 7 are fitted in the anti-rotation inner angle 9, and then the mounting nuts 8 are installed on the mounting bolts 7, and the adjusting component bodies 1 are connected to the upper connecting flange 3 and the lower connecting flange 4, so that the upper connecting flange 3 and the lower connecting flange 4 complete the staggered connection.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flange connection offset hole adjustment device, comprising an adjustment member body (1), characterized in that: The adjusting member body (1) is provided with bolt head storage grooves (2) on one side of the top and the bottom. The adjusting member body (1) is located between the upper connecting flange (3) and the lower connecting flange (4). The surfaces of the upper connecting flange (3) and the lower connecting flange (4) are provided with offset mounting holes (5). The adjusting member body (1) is provided with two groups of connecting bolt holes (6). The connecting bolt holes (6) are communicated with the bolt head storage grooves (2). A mounting bolt (7) is movably arranged in the bolt head storage grooves (2). The mounting bolt (7) sequentially penetrates the adjusting member body (1), the upper connecting flange (3) and the lower connecting flange (4) and is threadedly connected with a mounting nut (8).

2. A flange connection offset hole adjustment device according to claim 1, characterized in that: An anti-rotation inner corner (9) is provided on the inner side of the bolt head storage groove (2), and the bolt head of the mounting bolt (7) is fitted to the inner wall of the anti-rotation inner corner (9).

3. The flange connection offset hole adjustment device according to claim 1, characterized in that: The thickness of the bolt head of the mounting bolt (7) is the same as the thickness of the bolt head storage groove (2), and the upper surface and the lower surface of the adjusting member body (1) are smooth and arranged in parallel.

4. The flange connection offset hole adjustment device according to claim 1, characterized in that: The two ends of the adjusting member body (1) close to the connecting bolt hole (6) are arranged in an arc shape, and the adjusting member body (1) is distributed in a shuttle-shaped structure as a whole.

5. The flange connection offset hole adjustment device according to claim 1, characterized in that: The bolt head storage groove (2) is arranged diagonally along the center point of the adjusting member body (1).

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