Flange convenient to position

Abstract

The utility model discloses a flange convenient to position, which comprises an inner fixing ring and an outer rotating ring, the inner fixing ring comprises a connecting ring connected with the tail end of a pipeline, a rotating convex ring is integrally arranged on the outer peripheral surface of the connecting ring, and the connecting ring is rotatably connected with the inner wall of the outer rotating ring through the rotating convex ring. The outer rotating ring comprises a rotating circular ring rotationally connected with the peripheral surface of the connecting ring, a rotating groove is formed in one side of the rotating circular ring, a bolt hole located in the outer side of the rotating groove is formed in the rotating circular ring, and a movable through hole is formed in the bottom of the rotating groove; inserting columns are arranged in the movable through holes and fixedly connected with the inserting grooves in an inserted mode. And by arranging the outer rotating ring and rotating the rotating ring, alignment of the bolt holes is more convenient, and butt joint of the first flange plate and the second flange plate is faster.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a flange which is easy to position. Background Art

[0002] The flange is a device used to connect two pipes. By welding the flange to the ends of the two flanges and then bolting the two flanges together, the ends of the two pipes can be connected together. It mainly plays a connecting role. If the two pipes are directly connected together, not only will the sealing be poor, but the connection of the pipes will also be more susceptible to oxidation damage.

[0003] During use of existing flanges, the bolt holes of the two flanges need to be aligned to facilitate the insertion of the connecting bolts, but the operation of aligning the bolt holes is cumbersome, and when a pipeline is connected to the rear of the flange, rotating the flange at a large angle requires the entire pipeline to rotate, which is very heavy and inconvenient.

[0004] For this purpose, we propose a flange that facilitates positioning. Utility Model Content

[0005] The purpose of the utility model is to provide a flange that is easy to position, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flange that is easy to position, comprising an inner fixed ring and an outer rotating ring, the inner fixed ring comprising a connecting ring connected to the end of the pipeline, the outer circumferential surface of the connecting ring is integrally provided with a rotating convex ring, the connecting ring is rotatably connected to the inner wall of the outer rotating ring through the rotating convex ring, one side of the rotating convex ring is provided with a plug-in groove, the outer rotating ring comprises a rotating circular ring rotatably connected to the outer circumferential surface of the connecting ring, one side of the rotating circular ring is provided with a rotating groove, the rotating circular ring is provided with a bolt hole located on the outside of the rotating groove, the bottom of the rotating groove is provided with a movable through hole, the interior of the movable through hole is provided with a plug-in column, and the plug-in column is fixedly plugged into the plug-in groove.

[0007] Optionally, a connecting groove for plugging into the end of the pipe is opened on one side of the connecting ring, a plug-in ring located inside the connecting groove is integrally connected to one side of the connecting ring, and a welding ring located outside the connecting groove is provided on one side of the connecting ring.

[0008] Optionally, the outer circumference of the plug-in ring is flush with the inner wall of the connecting groove, the inner circumference of the welding ring is flush with the outer wall of the connecting groove, and the length of the plug-in ring is greater than the length of the welding ring.

[0009] Optionally, a rotating ring is rotatably connected inside the rotating groove, a limiting protrusion is integrally provided inside the rotating groove, a limiting slide groove is provided in the middle of the rotating ring, and the limiting protrusion is slidably connected to the inside of the limiting slide groove.

[0010] Optionally, a first magnetic block located between the limiting sliding grooves is fixedly installed on one side of the rotating ring close to the bottom of the rotating groove, a second magnetic block located on one side of the first magnetic block is fixedly installed on the rotating ring, and a third magnetic block is fixedly installed on one end of the plug-in column.

[0011] Optionally, the opposing surfaces of the first magnetic block and the third magnetic block have the same magnetic properties, and the opposing surfaces of the first magnetic block and the third magnetic block have different magnetic properties.

[0012] Optionally, a frosted surface for facilitating rotation is provided on one side of the rotating ring away from the bottom of the rotating groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The flange which is easy to position is provided with an outer rotating ring. When the bolt holes of the two flanges cannot be aligned, the rotating ring is rotated to align the second magnetic block with the movable through hole, so that the second magnetic block and the third magnetic block are adsorbed, and the plug-in column is pulled out from the plug-in slot. Then, the rotating ring is rotated to align the bolt hole with the bolt hole of the other flange. The rotating ring is rotated in the opposite direction to loosen the second magnetic block and the third magnetic block. At the same time, the first magnetic block and the third magnetic block are aligned. Under the action of magnetic force, the plug-in column is plugged into the plug-in slot again, and the rotating ring is fixed, so that the alignment of the bolt holes is easier and the docking of the first flange and the second flange is faster.

[0015] 2. The flange, which is easy to position, is provided with a connection groove, and the pipe is inserted into the connection groove, so that the flange and the pipe are precisely butted together. Then, the welding ring is melted by a welding machine, so that the inner fixing ring and the pipe are melted together, without damaging the structure of the pipe, and can reduce the welding consumption of the pipe, thereby making the flange butt joint more precise and the service life after welding longer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a flange that is easy to position according to the utility model;

[0017] Figure 2 This is a schematic structural diagram of a flange connection ring that is easy to position according to the utility model;

[0018] Figure 3 This is a schematic structural diagram of an outer rotating ring of a flange that is easy to position according to the utility model;

[0019] Figure 4This is a structural schematic diagram of a rotating ring of a flange that is easy to position according to the utility model;

[0020] Figure 5 This is a cross-sectional view of a rotating ring of a flange that is easy to position according to the utility model;

[0021] Figure 6 The utility model is a flange that is easy to position Figure 5 Enlarged view of point A in the middle.

[0022] In the figure: 1. inner fixed ring; 11. connecting ring; 12. rotating convex ring; 13. plug-in groove; 14. connecting groove; 15. plug-in ring; 16. welding ring; 2. outer rotating ring; 21. rotating circular ring; 22. rotating groove; 23. limiting convex block; 24. bolt hole; 25. rotating ring; 26. limiting slide groove; 27. first magnetic block; 28. second magnetic block; 29. ​​movable through hole; 210. plug-in column; 211. third magnetic block. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figures 1 to 6 The utility model provides a flange that is easy to position, including an inner fixed ring 1 and an outer rotating ring 2. The inner fixed ring 1 includes a connecting ring 11 connected to the end of the pipeline. The outer circumferential surface of the connecting ring 11 is integrally provided with a rotating convex ring 12. The connecting ring 11 is rotatably connected to the inner wall of the outer rotating ring 2 through the rotating convex ring 12. A plug-in groove 13 is provided on one side of the rotating convex ring 12. The outer rotating ring 2 includes a rotating circular ring 21 rotatably connected to the outer circumferential surface of the connecting ring 11. A rotating groove 22 is provided on one side of the rotating circular ring 21. The rotating circular ring 21 is provided with a bolt hole 24 located outside the rotating groove 22. A movable through hole 29 is provided at the bottom of the rotating groove 22. A plug-in column 210 is provided inside the movable through hole 29. The plug-in column 210 is fixedly plugged with the plug-in groove 13.

[0025] A connecting groove 14 for plugging into the end of the pipe is provided on one side of the connecting ring 11, and a plug-in ring 15 located inside the connecting groove 14 is integrally connected to one side of the connecting ring 11. A welding ring 16 located outside the connecting groove 14 is provided on one side of the connecting ring 11. By setting the connecting groove 14, the pipe is inserted into the connecting groove 14, so that the flange and the pipe are accurately docked. Then, the welding ring 16 is melted by a welding machine, so that the inner fixing ring 1 is melted together with the pipe, without damaging the structure of the pipe, and reducing the welding consumption of the pipe, thereby making the flange docking more precise and the service life after welding longer.

[0026] The outer circumference of the plug-in ring 15 is flush with the inner wall of the connecting groove 14 , the inner circumference of the welding ring 16 is flush with the outer wall of the connecting groove 14 , and the length of the plug-in ring 15 is greater than that of the welding ring 16 .

[0027] A rotating ring 25 is rotatably connected inside the rotating groove 22 . A limiting protrusion 23 is integrally arranged inside the rotating groove 22 . A limiting sliding groove 26 is provided in the middle of the rotating ring 25 . The limiting protrusion 23 is slidably connected to the inside of the limiting sliding groove 26 .

[0028] A first magnetic block 27 located between the limiting slide grooves 26 is fixedly installed on one side of the rotating ring 25 close to the bottom of the rotating groove 22, a second magnetic block 28 located on one side of the first magnetic block 27 is fixedly installed on the rotating ring 25, and a third magnetic block 211 is fixedly installed on one end of the plug-in column 210. By setting the outer rotating ring 2, when the bolt holes 24 of the two flanges cannot be aligned, the rotating ring 25 is rotated to align the second magnetic block 28 with the movable through hole 29, thereby causing the second magnetic block 28 to be adsorbed with the third magnetic block 211, The plug-in column 210 is pulled out from the plug-in slot 13, and then the rotating ring 21 is rotated to align the bolt hole 24 with the bolt hole 24 of the other flange, and the rotating ring 25 is rotated in the opposite direction to loosen the second magnetic block 28 and the third magnetic block 211. At the same time, the first magnetic block 27 is aligned with the third magnetic block 211. Under the action of magnetic force, the plug-in column 210 is plugged into the plug-in slot 13 again, and the rotating ring 21 is fixed, so that the alignment of the bolt hole 24 is easier and the docking of the first flange and the second flange is faster.

[0029] The opposing surfaces of the first magnetic block 27 and the third magnetic block 211 have the same magnetic properties, and the opposing surfaces of the first magnetic block 27 and the third magnetic block 211 have different magnetic properties.

[0030] Working principle:

[0031] Insert the pipe into the connection groove 14 so that the flange and the pipe are precisely butted together. Then use a welding machine to melt the welding ring 16 so that the inner fixing ring 1 is melted together with the pipe, without damaging the structure of the pipe and reducing the welding consumption of the pipe, thereby making the flange butt joint more precise and having a longer service life after welding. When the bolt holes 24 of the two flanges cannot be aligned, rotate the rotating ring 25 so that the second magnetic block 28 is aligned with the active through hole 29, thereby making the second magnetic block 28 adsorbed with the third magnetic block 211, and insert the pipe. The connecting post 210 is pulled out from the plug-in slot 13, and then the rotating ring 21 is rotated to align the bolt hole 24 with the bolt hole 24 of the other flange, and the rotating ring 25 is rotated in the opposite direction to loosen the second magnetic block 28 and the third magnetic block 211. At the same time, the first magnetic block 27 is aligned with the third magnetic block 211. Under the action of magnetic force, the connecting post 210 is plugged into the plug-in slot 13 again, and the rotating ring 21 is fixed, so that the alignment of the bolt hole 24 is easier and the docking of the first flange and the second flange is faster.

[0032] 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 these 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 for easy positioning, comprising an inner fixed ring (1) and an outer rotating ring (2), characterized in that: The inner fixed ring (1) comprises a connecting ring (11) connected to the end of the pipeline, the outer circumferential surface of the connecting ring (11) is integrally provided with a rotating convex ring (12), the connecting ring (11) is rotatably connected to the inner wall of the outer rotating ring (2) through the rotating convex ring (12), one side of the rotating convex ring (12) is provided with a plug-in groove (13), the outer rotating ring (2) comprises a rotating circular ring (21) rotatably connected to the outer circumferential surface of the connecting ring (11), one side of the rotating circular ring (21) is provided with a rotating groove (22), the rotating circular ring (21) is provided with a bolt hole (24) located outside the rotating groove (22), the bottom of the rotating groove (22) is provided with a movable through hole (29), the interior of the movable through hole (29) is provided with a plug-in column (210), and the plug-in column (210) is fixedly plugged with the plug-in groove (13).

2. A flange for facilitating positioning according to claim 1, characterized in that: One side of the connecting ring (11) is provided with a connecting groove (14) for plugging into the end of the pipeline, one side of the connecting ring (11) is integrally connected with a plug-in ring (15) located inside the connecting groove (14), and one side of the connecting ring (11) is provided with a welding ring (16) located outside the connecting groove (14).

3. A flange for facilitating positioning according to claim 2, characterized in that: The outer circumference of the plug-in ring (15) is flush with the inner wall of the connecting groove (14), the inner circumference of the welding ring (16) is flush with the outer wall of the connecting groove (14), and the length of the plug-in ring (15) is greater than the length of the welding ring (16).

4. A flange for facilitating positioning according to claim 1, characterized in that: A rotating ring (25) is rotatably connected inside the rotating groove (22), a limiting protrusion (23) is integrally arranged inside the rotating groove (22), a limiting sliding groove (26) is provided in the middle of the rotating ring (25), and the limiting protrusion (23) is slidably connected to the inside of the limiting sliding groove (26).

5. A flange for facilitating positioning according to claim 4, characterized in that: A first magnetic block (27) located between the limiting sliding grooves (26) is fixedly installed on one side of the rotating ring (25) close to the bottom of the rotating groove (22), a second magnetic block (28) located on one side of the first magnetic block (27) is fixedly installed on the rotating ring (25), and a third magnetic block (211) is fixedly installed on one end of the plug-in column (210).

6. A flange for facilitating positioning according to claim 5, characterized in that: The opposing surfaces of the first magnetic attraction block (27) and the third magnetic attraction block (211) have the same magnetic properties, and the opposing surfaces of the first magnetic attraction block (27) and the third magnetic attraction block (211) have different magnetic properties.

7. A flange for facilitating positioning according to claim 4, characterized in that: A frosted surface for easy rotation is provided on one side of the rotating ring (25) away from the bottom of the rotating groove (22).

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