Quick alignment device for pipeline flanges

Abstract

The invention discloses a pipeline flange quick alignment device, and relates to the technical field of pipeline installation and connection, the pipeline flange quick alignment device comprises a V-shaped movable rod, the end part of the V-shaped movable rod is fixedly connected with a positioning rod matched with an installation hole in a flange, and the positioning rod is eccentrically and rotatably connected with an eccentric shaft; the two ends of the eccentric shaft are eccentrically and fixedly connected with cylindrical blocks; two semi-annular plates are clamped between the end, away from the V-shaped movable rod, of the cylindrical block and the flange, a bolt groove matched with the flange is formed in one side of the flange, and a bolt is placed in the bolt groove. Through the arrangement of the positioning rod, the mounting hole can be pre-positioned when a subsequent pipeline is mounted, and meanwhile, the positioning rod can also play a role in guiding the subsequent pipeline to be mounted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline installation and connection, and more particularly to a pipeline flange rapid alignment device. BACKGROUND

[0002] In modern industrial production and infrastructure construction, pipeline systems are the key components for transporting fluid media. The quality of pipeline connection directly affects the safe operation, sealing performance and service life of the entire system. Flange connection, as a common and reliable way of pipeline connection, is widely used due to its characteristics of easy disassembly, maintenance and replacement. However, during the construction process of flange connection, the accurate alignment between the two flanges is a technical difficulty and time-consuming link.

[0003] Traditional pipeline flange alignment methods usually rely on manual operation and simple auxiliary tools. For example, construction personnel will use crowbars, hammers and other tools to adjust the position of the flange through visual judgment and experience. In some cases, traditional centering pins or centering rods are inserted into the bolt holes of the flanges for preliminary positioning. For flanges of larger diameter or heavier pipelines, simple hydraulic tools or other auxiliary tools may be used, which is relatively complex and cumbersome.

[0004] Therefore, it is necessary to propose a pipeline flange rapid alignment device to solve the above problems. SUMMARY

[0005] The purpose of the present application is to solve the problems raised in the background art.

[0006] The present application specifically adopts the following technical solutions to achieve the above purposes:

[0007] A pipeline flange rapid alignment device, comprising a V-shaped movable rod, the end of the V-shaped movable rod is fixedly connected with a positioning rod matched with the mounting hole on the flange, an eccentric shaft is eccentrically connected in the positioning rod, and a cylindrical block is eccentrically fixedly connected at both ends of the eccentric shaft;

[0008] Two semi-annular plates are clamped between the cylindrical block away from one end of the V-shaped movable rod and the flange, a bolt slot matched with the flange is formed on one side of the flange, and a bolt is placed in the bolt slot.

[0009] Further, an avoidance slot is formed on each semi-annular plate, which can be inserted into the outside of the positioning rod, and the inside surface of the semi-annular plate is attached to the outside surface of the pipeline.

[0010] Further, a driving mechanism is arranged in the V-shaped movable rod to drive the rotation of the cylindrical block.

[0011] Further, the V-shaped movable rod is provided with a mounting cavity, the driving mechanism comprises a second electric push rod fixedly connected in the mounting cavity, a first transmission rod fixedly connected at the output end of the second electric push rod and a second transmission rod rotatably connected at the outer end of the first transmission rod, and one end of the second transmission rod away from the first transmission rod is rotatably connected at the outer edge of the cylindrical block.

[0012] Further, the V-shaped movable rod is provided with a mounting cavity, the driving mechanism comprises a second electric push rod fixedly connected in the mounting cavity, a first transmission rod fixedly connected at the output end of the second electric push rod and a second transmission rod rotatably connected at the outer end of the first transmission rod, and one end of the second transmission rod away from the first transmission rod is rotatably connected at the outer edge of the cylindrical block.

[0013] Further, the V-shaped movable rod is provided with a mounting cavity, the driving mechanism comprises a second electric push rod fixedly connected in the mounting cavity, a first transmission rod fixedly connected at the output end of the second electric push rod and a second transmission rod rotatably connected at the outer end of the first transmission rod, and one end of the second transmission rod away from the first transmission rod is rotatably connected at the outer edge of the cylindrical block.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] 1. The positioning rod can be used for pre-positioning the mounting hole of the subsequent pipeline after installation, and can also be used for guiding the installation of the subsequent pipeline.

[0016] 2. The cooperation between the positioning rod, the eccentric shaft and the cylindrical block can make the cylindrical block rotate after the eccentric shaft rotates after the subsequent pipeline is pre-positioned, and the subsequent pipeline can be moved by pulling the positioning rod.

[0017] 3. The top-pulling mechanism can be used for pulling the subsequent pipeline to fit the fixed pipeline after the pipeline is pre-positioned, which is labor-saving and accurate, and the workers can save time for subsequent installation.

[0018] 4. The cylindrical block, the semi-annular plate and the bolt slot can be used for pressing the semi-annular plate on the flange of the subsequent pipeline when the subsequent pipeline is pulled, so as to prevent the bolts from falling off, and the semi-annular plate can also limit the rotation of the bolts when the nuts need to be tightened, thereby facilitating the installation of the nuts. DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic view of the structure of the present application.

[0020] Figure 2 It is a three-dimensional side view schematic view of the structure of the present application.

[0021] Figure 3 It is a three-dimensional schematic view of the connecting structure of the V-shaped movable rod in the present application.

[0022] Figure 4It is the first stereoscopic section view schematic diagram of the connecting structure at the V-shaped movable rod in the application.

[0023] Figure 5 It is the second stereoscopic section view schematic diagram of the connecting structure at the V-shaped movable rod in the application.

[0024] Figure 6 It is the stereoscopic schematic diagram of the connecting structure of the semi-annular plate in the application.

[0025] The figure mark: 1, pipeline; 2, flange; 3, mounting hole; 4, V-shaped movable rod; 5, mounting rod; 6, threaded rod; 7, internal thread cylinder; 8, U-shaped frame; 9, first electric push rod; 10, positioning rod; 11, eccentric shaft; 12, cylindrical block; 13, mounting cavity; 14, second electric push rod; 15, first transmission rod; 16, second transmission rod; 17, semi-annular plate; 18, avoiding groove; 19, bolt. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0027] Please refer to Figures 1 to 6 A pipeline flange rapid alignment device belongs to a portable operation tool, which is installed on the pipeline 1 that has been fixed to align and connect the subsequent pipeline 1.

[0028] The V-shaped movable rod 4 is a rod with two end hinged, and the angle thereof can be adjusted to match the mounting holes 3 on different number of flanges 2. The end of the V-shaped movable rod 4 is fixedly connected with the positioning rod 10 matched with the mounting hole 3 on the flange 2. In order to avoid the interference between the V-shaped movable rod 4 and the pipeline 1 caused by too large angle, the positioning rod 10 is usually inserted into the adjacent two mounting holes 3, wherein the eccentric shaft 11 is eccentrically connected in the positioning rod 10, and the cylindrical block 12 is eccentrically fixedly connected at both ends of the eccentric shaft 11. When the axis of the positioning rod 10 and the cylindrical block 12 coincide, the outer sides of the two are flush, which is convenient for passing through the mounting hole 3. For the mounting holes 3 with different diameters, the user can design self-adaptingly, for example, design multiple sets of multiple types of alignment devices.

[0029] In order to facilitate the installation of the bolt 19 at the time of alignment connection, two half-ring plates 17 are clamped between the cylindrical block 12 away from one end of the V-shaped movable rod 4 and the flange 2, a bolt slot matched with the flange 2 is formed on one side of the flange 2, and the bolt 19 is placed in the bolt slot. At this time, the bolt 19 will not rotate. Similarly, when the nut is tightened, the bolt 19 will not rotate under the action of the half-ring plate 17. In this way, the step of limiting the bolt 19 can be omitted, and when the cylindrical block 12 tightens the subsequent flange 2 to fit the fixed flange 2 of the pipeline 1, the half-ring plate 17 at this time is in a clamped state, avoiding the shaking of the bolt 19.

[0030] In addition, in order to prevent the half-ring plate 17 from falling off, an avoidance slot 18 is formed on each half-ring plate 17, which can be inserted outside the positioning rod 10. The inner side of the half-ring plate 17 is fitted to the outer side of the pipeline 1. When the half-ring plate 17 is hung on the positioning rod 10, it will not fall off.

[0031] The worker can pre-insert the bolt 19 into the bolt slot, which has a pre-assembly effect, and does not need to insert and install the bolt 19 one by one after the flange 2 is aligned.

[0032] In order to realize the starting control of the cylindrical block 12, an installation cavity 13 is formed in the V-shaped movable rod 4, and a driving mechanism for driving the rotation of the cylindrical block 12 is arranged in the V-shaped movable rod 4. The driving mechanism includes a second electric push rod 14 fixedly connected in the installation cavity 13, a first transmission rod 15 fixedly connected to the output end of the second electric push rod 14, and a second transmission rod 16 rotatably connected to the outer end of the first transmission rod 15. The end of the second transmission rod 16 away from the first transmission rod 15 is rotatably connected to the outer edge of the cylindrical block 12. That is, by controlling the extension and retraction of the second electric push rod 14, the second electric push rod 14 is moved, and then the second transmission rod 16 is moved, thereby pulling the cylindrical block 12 to rotate.

[0033] The middle part of the V-shaped movable rod 4 is rotatably connected with a liftable top-pulling mechanism for pulling the flange 2 of the fixed pipeline 1 and pulling the flange 2 of the unfixed pipeline 1. The top-pulling mechanism includes a mounting rod 5 rotatably connected to the middle part of the V-shaped movable rod 4, a threaded rod 6 perpendicularly fixedly connected to one end of the mounting rod 5 away from the V-shaped movable rod 4, an internal thread cylinder 7 threadedly connected to the outer side surface of the threaded rod 6, a U-shaped frame 8 rotatably connected to the lower end of the internal thread cylinder 7, and a first electric push rod 9 fixedly connected to the middle part of the U-shaped frame 8. The lower end surface of the U-shaped frame 8 is an arc surface. In use, the internal thread cylinder 7 needs to be rotated so that the lower end of the U-shaped frame 8 fits the pipeline 1, thereby preventing the U-shaped frame 8 from rotating.

[0034] Working principle: the pipeline 1 is usually supported by hangers or supports during installation, during use, first adjust the angle of the V-shaped movable rod 4, pass the positioning rod 10 through the mounting hole 3 of the flange 2 of the pipeline 1 which has been fixed on the support, then rotate the inner threaded cylinder 7 to make the U-shaped frame 8 adhere to the outer side of the pipeline 1, when installing the subsequent pipeline 1, first pass the subsequent pipeline 1 through the subsequent support, then adjust the angle of the pipeline 1 to make the mounting hole 3 pass through the positioning rod 10, then translate the half-ring plate 17 provided with the bolt 19 along the pipeline 1 and insert it outside the positioning rod 10, then control the second electric push rod 14 to extend to drive the cylindrical block 12 to rotate to make the cylindrical block 12 and the positioning rod 10 dislocate, at this time, the first electric push rod 9 can be started, with the extension of the first electric push rod 9, the flange 2 of the pipeline 1 which has been fixed is pressed, thereby driving the pipeline 1 which has not been fixed to move through the limiting belt of the cylindrical block 12 until the two flanges 2 adhere, at this time, the bolt 19 is inserted into the mounting hole 3 of the flange 2 of the pipeline 1 which has been fixed, at this time, the nut can be tightened, and the installation is completed through the electric tool, after the installation is completed, control the second electric push rod 14 to contract to drive the cylindrical block 12 to reset, at this time, the device as a whole can be pulled out of the mounting hole 3, then the two mounting holes 3 are connected by the bolt 19.

[0035] The above is only the preferred embodiment of the present application, and is not used to limit the present application, the patent protection scope of the present application is subject to the claims, any equivalent structural changes made by using the content of the specification of the present application should be included in the protection scope of the present application.

Claims

1. A quick alignment device for pipe flanges, comprising a V-shaped movable rod, characterized in that: The end of the V-shaped movable rod is fixedly connected to a positioning rod that matches the mounting hole on the flange. An eccentric shaft is eccentrically rotatably connected to the positioning rod, and cylindrical blocks are eccentrically fixedly connected to both ends of the eccentric shaft. Two semi-annular plates are sandwiched between the cylindrical block at the end away from the V-shaped movable rod and the flange. A bolt groove matching the flange is opened on one side of the flange, and a bolt is placed in the bolt groove.

2. The pipe flange quick alignment device according to claim 1, characterized in that: Each of the semi-annular plates has a clearance groove that can be inserted into the outside of the positioning rod, and the inner side of the semi-annular plate fits against the outer side of the pipe.

3. The pipe flange quick alignment device according to claim 1, characterized in that: The V-shaped movable rod is equipped with a drive mechanism that drives the cylindrical block to rotate.

4. A quick alignment device for pipe flanges according to claim 3, characterized in that: The V-shaped movable rod has an installation cavity. The driving mechanism includes a second electric push rod fixedly connected in the installation cavity, a first transmission rod fixedly connected to the output end of the second electric push rod, and a second transmission rod rotatably connected to the outer end of the first transmission rod. The end of the second transmission rod away from the first transmission rod is rotatably connected to the outer edge of the cylindrical block.

5. A quick alignment device for pipe flanges according to claim 1, characterized in that: The V-shaped movable rod is rotatably connected to a liftable jacking mechanism in the middle. The jacking mechanism is used to push against the flange of the fixed pipe and pull the flange of the unfixed pipe.

6. A quick alignment device for pipe flanges according to claim 5, characterized in that: The top-pull mechanism includes a mounting rod rotatably connected to the middle of the V-shaped movable rod, a threaded rod fixedly connected to the end of the mounting rod away from the V-shaped movable rod, an internal threaded cylinder threadedly connected to the outer side of the threaded rod, a U-shaped frame rotatably connected to the lower end of the internal threaded cylinder, and a first electric push rod fixedly connected to the middle of the U-shaped frame.

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