Metal flange assembly convenient to align and install

Abstract

The utility model discloses a metal flange assembly convenient to align and install, which relates to the technical field of flanges and specifically comprises two butt flanges, and connecting pipes are respectively connected to the centers of one sides of the two butt flanges; circular openings in the centers of the two annular connecting bases are arranged on the two connecting pipes in a sleeving mode respectively, and the outer edges of the annular connecting bases are exposed out of the butt flange; wherein the end faces, away from the connecting pipe, of the two butt flanges are in butt joint together, mounting holes are formed in the edges of the annular connecting base, and the annular connecting base can freely rotate on the connecting pipe, so that the mounting holes in the two sides are aligned. When the flange is used, the situation that connecting holes in a common flange cannot be aligned due to installation deviation after two pipelines are in butt joint does not need to be considered, the annular connecting seat is rotated to enable the mounting holes to be aligned, and the flange installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to a metal flange assembly convenient for alignment installation. Background Technique

[0002] Also called flange convex disc or flange, a flange is a part for connecting shafts to each other and for connecting between pipe ends. Traditional flanges are fixed on pipe fittings or shafts and cannot be rotated and adjusted. When flanges are connected, the flange holes on both sides must be aligned, otherwise the bolts cannot be inserted into the flange holes, and when the existing flanges have position deviations, they are not easy to adjust. For this reason, we propose a metal flange assembly convenient for alignment installation. Content of the Utility Model

[0003] Aiming at the deficiency that the positions of flange holes cannot be adjusted when existing flanges are connected, the utility model provides a metal flange assembly convenient for alignment installation, which has the advantage that when the annular connection seat is rotated, the installation holes on both sides can be easily aligned, and solves the problems raised in the above background technique.

[0004] To achieve the above purposes, the utility model is realized through the following technical solutions: A metal flange assembly convenient for alignment installation, comprising:

[0005] Two butt flanges, and connecting pipes are respectively connected to the centers of one sides of the two butt flanges;

[0006] Two annular connection seats, the circular openings in the centers of the two annular connection seats are respectively sleeved on the two connecting pipes, and the outer edges of the annular connection seats are all exposed outside the butt flanges;

[0007] Among them, the end faces of the two butt flanges away from the connecting pipes are butted together, and installation holes are provided at the edges of the annular connection seats. The annular connection seats can rotate freely on the connecting pipes, so that the installation holes on both sides are aligned.

[0008] Preferably, the diameter of the annular connection seat is larger than the diameter of the butt flange, and the two are coaxial.

[0009] Preferably, annular grooves are coaxially provided on the sides of the two butt flanges away from each other, and annular blocks placed in the annular grooves are provided on the sides of the annular connection seats facing the butt flanges.

[0010] Preferably, at least two openings are provided on the annular connection seat, so that the annular connection seat is divided into at least two parts.

[0011] Preferably, a docking groove is provided on the inner edge of one of the butt flanges, and a docking flange is provided on the inner edge of the other butt flange, and the docking flange is placed in the docking groove.

[0012] Preferably, a sealing component is provided between the docking groove and the docking flange.

[0013] Compared with the prior art, when the present utility model is in use, after the two docking flanges are butted together, the annular connection seat is rotated to easily align the mounting holes on its edge, and then it can be locked by bolts. The operation is simple and convenient to use. Compared with the traditional flange, the flange assembly proposed in this application does not need to consider the situation where the connection holes on the ordinary flange cannot be aligned due to the installation deviation after the two pipes are butted, but the mounting holes can be aligned by rotating the annular connection seat, which improves the flange installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural view of the present utility model.

[0015] Figure 2 It is a schematic structural view of the present utility model after an opening is provided on the annular connection seat.

[0016] Figure 3 It is a three-dimensional sectional view of the present utility model.

[0017] Figure 4 It is a front view of the present utility model.

[0018] In the figure: 1, connecting pipe; 2, annular connection seat; 3, bolt; 4, circular opening; 5, docking flange; 6, opening; 7, annular groove; 8, docking flange; 9, docking groove; 10, annular block; 11, mounting hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a metal flange assembly convenient for alignment and installation, two docking flanges 5, and connecting pipes 1 are respectively connected to the centers of one sides of the two docking flanges 5. In the actual application process, the connecting pipe 1 is connected to the pipe to be connected, that is, the connecting pipe 1 can be directly welded to the pipe to integrally connect the docking flange 5 and the pipe;

[0021] When docking the two pipes, it only needs to align the two docking flanges 5 and then butt them together, as Figure 3 and Figure 4As shown in the figure, in order to facilitate the initial docking of two docking flanges 5, a docking groove 9 is provided at the inner edge of one of the docking flanges 5, and a docking flange 8 is provided at the inner edge of the other docking flange 5. Among them, the docking flange 8 extends axially outward from the docking flange 5, while the docking groove 9 extends axially inward into the docking flange 5. In this way, when the two docking flanges are docked, the docking flange 8 can be placed in the docking groove 9 for fixation, and there is a clearance fit between the two. The advantages of this are as follows: First, the cooperation between the docking flange 8 and the docking groove 9 can play a guiding role; second, it can stabilize the ends of the two pipes. That is, when the two docking flanges 5 are docked and the docking flange 8 is inserted into the docking groove 9, when the pipes are subjected to non-axial forces, the ends of the two docked pipes are fixed by the docking flange 8 and the docking groove 9, preventing the ends of the two docked pipes from shifting.

[0022] After the two docking flanges 5 are docked, they can be aligned and locked. As Figure 1 shown, the present application further includes two annular connecting seats 2. The circular openings 4 at the centers of the two annular connecting seats 2 are respectively sleeved on the two connecting pipes 1. Since the diameter of the annular connecting seat 2 is larger than the diameter of the docking flange 5, the outer edges of the annular connecting seats 2 are all exposed outside the docking flange 5, and the annular connecting seats 2 are all attached to the sides of the docking flange 5;

[0023] Specifically, when the present application is in use, the ends of the two docking flanges 5 away from the connecting pipes 1 are docked together. Installation holes 11 are provided at the edges of the annular connecting seats 2. In fact, the diameter of the circular opening 4 is also larger than the diameter of the connecting pipe 1, so that the annular connecting seats 2 can rotate freely on the connecting pipes 1. When any one of the annular connecting seats 2 is rotated, the installation holes 11 on both sides can be easily aligned. This method does not need to consider the situation where the connecting holes on the ordinary flange are not aligned after the two pipes are docked, resulting in the bolts being unable to be placed in the holes; on the contrary, in the present application, the installation holes are aligned by rotating the annular connecting seats 2, and then bolts 3 are inserted into the corresponding installation holes 11, and then the two annular connecting seats 2 can be tightly connected by nuts at the ends of the bolts 3. The operation is simple and convenient to use;

[0024] It should be noted that since there is a docking flange 5 between the two annular connecting seats 2 on both sides, the gap between the two annular connecting seats 2 on both sides is large enough. When the nuts are gradually tightened, the pressure of the two annular connecting seats 2 on the docking flange 5 also increases accordingly, and finally the two docking flanges 5 are tightly pressed together. At the same time, due to the cooperation of the docking flange 8 and the docking groove 9, the structural strength of the connected docking flange 5 is large and will not loosen.

[0025] The present application also further improves the connection part between the annular connecting seat 2 and the docking flange 5, as Figure 3 and Figure 4As shown in the figure, annular grooves 7 are coaxially provided on the sides of the two butt flanges 5 facing away from each other. An annular block 10 placed in the annular groove 7 is provided on the side of the annular connection seat 2 facing the butt flange 5. When the annular connection seat 2 is placed on the side of the butt flange 5, the annular block 10 is also placed in the annular groove 7. At this time, the annular connection seat 2 and the butt flange 5 can be coaxially arranged. When the operator rotates the annular connection seat 2, there is no need to consider whether the annular connection seat 2 and the butt flange 5 are coaxially arranged.

[0026] Furthermore, as Figure 2 shown in the figure, the annular connection seat 2 can be designed into a spliced structure, that is, at least two openings 6 are provided on the annular connection seat 2, so that the annular connection seat 2 is at least divided into two parts. In this way, when in use, there is no need to sleeved the annular connection seat 2 on the connecting pipe 1. Instead, after the butt flanges 5 are butted, the annular connection seat 2 can be clamped on the annular groove 7, and the operation is more convenient. As Figure 2 shown in the figure, the annular connection seat 2 is divided into at least two groups. After one group of annular connection seats 2 is clamped in the annular groove 7, the two annular connection seats 2 can also be adjusted arbitrarily, which is also convenient for the alignment of the mounting holes 11.

[0027] Furthermore, a sealing assembly is provided between the docking groove 9 and the docking flange 8. The sealing assembly is a sealing rubber. Similarly, a sealing assembly is provided between the butt flanges 5 to achieve a better sealing effect.

[0028] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. The terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. Moreover, the terms "including", "comprising" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A metal flange assembly convenient for alignment installation, characterized in that, Comprising: Two butt flanges (5), and connecting pipes (1) are respectively connected to the centers of one sides of the two butt flanges (5); Two annular connection seats (2), circular openings (4) at the centers of the two annular connection seats (2) are respectively sleeved on the two connecting pipes (1), and the outer edges of the annular connection seats (2) are all exposed outside the butt flanges (5); Wherein, the end faces of the two butt flanges (5) away from the connecting pipes (1) are butted together, mounting holes (11) are provided at the edges of the annular connection seats (2), and the annular connection seats (2) can rotate freely on the connecting pipes (1) so that the mounting holes (11) on both sides are aligned.

2. The metal flange assembly facilitating alignment and installation according to claim 1, characterized in that, The diameter of the annular connection seat (2) is larger than the diameter of the butt flange (5), and the two are coaxial.

3. The metal flange assembly facilitating alignment and installation according to claim 2, wherein, Annular grooves (7) are coaxially provided on the sides of the two butt flanges (5) away from each other, and annular blocks (10) placed in the annular grooves (7) are provided on the sides of the annular connection seats (2) facing the butt flanges (5).

4. The metal flange assembly facilitating alignment and installation according to claim 3, wherein At least two openings (6) are formed in the annular connection seat (2), so that the annular connection seat (2) is at least divided into two parts.

5. The metal flange assembly facilitating alignment and installation according to any one of claims 1-4, characterized in that, A butt groove (9) is provided at the inner edge of one of the butt flanges (5), and a butt flange (8) is provided at the inner edge of the other butt flange (5), and the butt flange (8) is placed in the butt groove (9).

6. The metal flange assembly facilitating alignment and installation according to claim 5, characterized in that A sealing assembly is provided between the butt groove (9) and the butt flange (8).

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