An oval flange

Abstract

The utility model discloses an elliptical flange, comprising an inner disk and an outer disk, wherein the outer disk is sleeved on the outer ring of the inner disk, an annular slideway is provided in the middle of the outer wall of the inner disk, and a limit slip ring is fixedly welded in the middle of the inner wall of the outer disk. The elliptical flange adopts the design of the inner disk and the outer disk, and is combined with the use of the upper limit slip ring and the annular slideway. When it is actually applied to the butt joint installation of pipelines, the flange plate can be calibrated and butted quickly without adjusting the pipeline, thereby reducing the difficulty and workload of the butt joint construction and installation of pipelines.

Description

Technical Field

[0001] The utility model relates to the technical field of flanges, in particular to an elliptical flange. Background Art

[0002] Flange is also called flange or flange. Flange is a part that connects pipes to each other and valves. It is connected to the pipe end. Flanges are generally used in pairs. A pair of flanges are set with corresponding mounting holes, and bolts and other connectors are passed through the mounting holes to connect the pipes well.

[0003] Flanges are made of various materials and shapes. Round flanges are the most common, but for some special purposes or special pipeline equipment, flanges of various other shapes are needed when docking, and oval flanges are one of them.

[0004] Compared with circular flanges, oval flanges have special restrictions on angles when used, not only for the docking bolt holes on the flanges, but also for the shape of the oval flanges. When using flanges to dock and install pipes, since the flanges and pipes are welded in advance, when the two sections of pipes are docked, there are often problems with the assembly holes and the collision edges that cannot be well calibrated.

[0005] Therefore, we propose an elliptical flange to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide an elliptical flange to solve the problems raised in the above background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An elliptical flange comprises an inner disk and an outer disk. The outer disk is sleeved on the outer ring of the inner disk. An annular slideway is provided in the middle of the outer wall of the inner disk. A limited slip ring is fixedly welded in the middle of the inner wall of the outer disk.

[0009] Preferably, the protruding portion of the limiting slip ring is snap-fitted into the inner cavity of the annular slideway.

[0010] Preferably, the inner disk is a two-layer structure, and the two-layer structure is welded and fixed after the outer disk is installed.

[0011] Preferably, embedding holes are provided at equal distances in the middle of the inner wall of the limit slip ring, and balls are rotatably mounted in the inner cavities of the embedding holes.

[0012] Preferably, the portion of the ball located outside the limiting sliding ring is always in compression contact with the inner wall of the annular slideway.

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

[0014] 1. The elliptical flange adopts the design of inner and outer disks, and with the use of upper limit slip rings and annular slideways, it can be used for pipe docking installation. It can quickly calibrate and dock the flange without adjusting the pipe, which reduces the difficulty and workload of pipe docking construction and installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an exploded view of the structure of the utility model;

[0017] Figure 3 This is an exploded view of the outer disk structure of the utility model.

[0018] In the figure: 1. Inner disk; 2. Outer disk; 3. Annular slideway; 4. Limiting slip ring; 5. Embedding hole; 6. Ball. DETAILED DESCRIPTION

[0019] 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.

[0020] The utility model provides a technical solution for an elliptical flange:

[0021] Embodiment 1:

[0022] The elliptical flange is mainly composed of an inner disk 1 and an outer disk 2 , and the outer disk 2 is sleeved on the outer ring of the inner disk 1 .

[0023] An annular slideway 3 is provided in the middle of the outer side wall of the inner disk 1 .

[0024] A limiting slip ring 4 is fixedly welded to the middle of the inner wall of the outer disk 2 .

[0025] The protruding end of the limiting slip ring 4 is clamped in the inner cavity of the annular slideway 3 .

[0026] The inner disk 1 is welded in two layers. The design of the inner disk 1 with two layers is mainly to facilitate the installation of the outer disk 2 and the limit slip ring 4. That is, during production, the annular slideway 3 on each inner disk 1 is in a half state. After the outer disk 2 is assembled, the limit slip ring 4 is snapped into the annular slideway 3, and then the other half of the inner disk 1 is buckled and assembled, and the entire elliptical flange production can be completed by welding and assembly.

[0027] In this embodiment, Figure 1 and Figure 2 As shown, in actual use, each elliptical flange is first fixedly installed in the pipeline, and then the pipeline is butt-jointed and installed, that is, the butt-jointed installation process of the elliptical flanges on two sections of the pipeline. When the elliptical flanges are butt-jointed and installed, in the initial butt-jointed state, the two elliptical flanges must have this angle deviation. At this time, the installer directly rotates the outer disk 2, and rotates it in the inner cavity of the annular slide 3 through the limit slip ring 4. Then, the flange can be directly butt-jointed and calibrated on the basis of the pipeline without adjusting the angle. After the angle and the mounting hole are fully calibrated, it can be directly locked by fasteners.

[0028] Embodiment 2:

[0029] The elliptical flange is mainly composed of an inner disk 1 and an outer disk 2, and the outer disk 2 is mounted on the outer ring of the inner disk 1, and a limit slip ring 4 is fixedly welded in the middle of the inner wall of the outer disk 2. An embedding hole 5 is opened on the inner wall of the limit slip ring 4, and a ball 6 is rotatably embedded in the inner cavity of the embedding hole 5.

[0030] In this embodiment, Figure 3 As shown, based on Example 1, the outer wall of the ball 6 is always in squeeze contact with the inner wall of the annular slide 3. When the pipeline is butt-jointed and the angle of the elliptical flange needs to be adjusted, the rotatable ball 6 can greatly reduce the resistance to the rotation of the outer disk 2.

[0031] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] Although the 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. An elliptical flange, comprising an inner disk (1) and an outer disk (2), characterized in that: The outer disk (2) is mounted on the outer ring of the inner disk (1); an annular slideway (3) is provided in the middle of the outer wall of the inner disk (1); and a limiting slip ring (4) is fixedly welded in the middle of the inner wall of the outer disk (2).

2. An elliptical flange according to claim 1, characterized in that: The protruding portion of the limiting sliding ring (4) is clamped in the inner cavity of the annular slideway (3).

3. The elliptical flange according to claim 1, characterized in that: The inner disk (1) is a two-layer structure, and the two-layer structure is welded and fixed after the outer disk (2) is installed.

4. The elliptical flange according to claim 1, characterized in that: Embedding holes (5) are provided at equal distances in the middle of the inner wall of the limit slip ring (4), and a ball (6) is rotatably mounted in the inner cavity of the embedding hole (5).

5. The elliptical flange according to claim 4, characterized in that: The portion of the ball (6) located outside the limiting sliding ring (4) is always in compression contact with the inner wall of the annular slideway (3).

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