Adjustable metal flange

Abstract

The utility model belongs to the technical field of flanges, and particularly relates to an adjustable metal flange which comprises a flange body and a connecting pipe. A boss is arranged on the outer side of each flange, an extending frame is further arranged on the outer side of the connecting pipe in a sleeving mode, one end of the connecting pipe abuts against an inner protruding ring on the inner side of the extending frame, and an outer protruding ring is arranged on the outer side of each boss and is in sliding connection with a containing groove in the extending frame so that the distance between every two adjacent flanges can be adjusted to adapt to the flanges with different distances. A pressing ring is arranged on the outer side of the extending frame, and a hoop on the outer side of one end of the pressing ring drives a sealing gasket on the inner side of an outer protruding ring to retract inwards so as to achieve the effect of sealing by blocking a gap. Positioning grooves are formed in the outer side of the pressing ring and the outer side of the outer protruding ring correspondingly and used for being pre-separated from the adjacent mechanism, subsequent cutting separation is facilitated, and therefore secondary distance adjustment is conducted. The use position of the flange can be conveniently adjusted according to the distance between adjacent pipelines, the working difficulty during laying is reduced, meanwhile, the flange is easy and convenient to assemble and disassemble for secondary adjustment, the flange is suitable for pipelines with different pressures, and the practical performance of the flange and an assembly of the flange is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flanges, and particularly relates to an adjustable metal flange. Background Technique

[0002] A metal flange is a disc-shaped part, mainly used for the interconnection between pipelines and valves, between pipelines and pipelines, and between pipelines and equipment, playing a sealing role. Due to its extensive application and important sealing role, it plays an important role in the field of modern industrial manufacturing;

[0003] At present, it is found in the actual application of existing metal flanges that the structure of the flange is fixed, and it is restricted by the length of the pipeline during laying, and the length of the pipeline needs to be accurately controlled, which will undoubtedly increase the laying difficulty of the pipeline. Moreover, during subsequent pipeline maintenance operations, it is even more necessary to strictly control its length, making it inconvenient to use;

[0004] To solve the above problems, an adjustable metal flange is proposed in this application. Content of the Utility Model

[0005] The purpose of the utility model is to provide an adjustable metal flange, which solves the problems raised in the above background technique.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is an adjustable metal flange, including: a flange and a connecting pipe; a boss is provided on the outer side of the flange, and an extension frame is also provided and sleeved on the outer side of the connecting pipe. One end of the connecting pipe abuts against an inner convex ring inside the extension frame. An outer convex ring is provided on the outer side of the boss, which forms a sliding connection with a receiving groove inside the extension frame to adjust the distance between adjacent flanges to adapt to flanges with different distances; a pressing ring is provided on the outer side of the extension frame, and the sealing pad inside the outer convex ring is driven to contract by a hoop on the outer side of one end of the pressing ring to achieve the effect of sealing the gap to form a seal; positioning grooves are provided on the outer sides of both the pressing ring and the outer convex ring for pre-separation from adjacent mechanisms, which is convenient for subsequent cutting and separation for secondary distance adjustment.

[0008] Further, a sleeve is sleeved on the outer side of the outer convex ring, one end of which is fixedly connected to the positioning groove on the outer side of the outer convex ring, and one end of the pressing ring is separated by a positioning groove into isolation blocks.

[0009] Further, the isolation block and the sleeve are fixedly connected by welding to form a welding strip.

[0010] Further, a protruding inner ring sleeve is provided on the inner side of the inner sleeve, which is slidably installed in an outer ring groove on the outer side of the outer convex ring.

[0011] Further, a notch is formed between the loop and one end face of the outer ring groove to facilitate positioning the cutting depth.

[0012] Further, a guiding slope is provided inside the boss, which is docked with the conical surface at one end of the inner convex ring, so that the transmission of the fluid is not affected and the situation of jamming is prevented.

[0013] Further, a sealing gasket mechanism is adopted inside the joint of the extension bracket and the inner convex ring.

[0014] The utility model has the following beneficial effects:

[0015] With the combined structure of the outer convex ring and the extension bracket, the utility model can make adjacent flanges be installed at different intervals to adapt to different intervals during the docking of adjacent pipelines. Moreover, through the extrusion of the hoop on the outer convex ring, the sealing gasket can be tightly attached to the inner convex ring to form a seal, so as to ensure stable sealing performance under the condition of different intervals of adjacent flanges.

[0016] By providing the positioning groove, the utility model can make the inner convex ring and the isolation block form a fault with the connecting pipe and the pressing ring respectively. At this time, the pressing ring and the outer convex ring can be directly fixed by welding to form a welding strip, so as to be used for pipelines with different pressures. And using its fault, it can be quickly cut and separated, which is convenient for subsequent interval adjustment and improves the practical performance.

[0017] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic diagram of the overall external structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the internal partial structure of the flange and the connecting pipe of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the adjacent flange connection of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the flange of the utility model;

[0023] Figure 5 It is a schematic diagram of the partial enlarged structure of part A of the utility model;

[0024] In the accompanying drawings, the list of components represented by each reference numeral is as follows:

[0025] In the figure: 1. Flange; 2. Connecting pipe; 3. Boss; 4. Extension bracket; 5. Compression ring; 6. Hoop; 7. Outer convex ring; 8. Sleeve; 9. Inner convex ring; 10. Gasket; 11. Guide slope; 12. Receiving groove; 13. Positioning groove; 14. Isolation block; 15. Welding strip; 16. Outer ring groove; 17. Inner ring sleeve. Detailed implementation manners

[0026] 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 of 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.

[0027] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0028] Please refer to Figures 1-5 As shown, the present utility model is an adjustable metal flange, including: a flange 1 and a connecting pipe 2; a boss 3 is provided on the outer side of the flange 1, and an extension bracket 4 is also provided and sleeved on the outer side of the connecting pipe 2. One end of the connecting pipe 2 abuts against the inner convex ring 9 inside the extension bracket 4. An outer convex ring 7 is provided on the outer side of the boss 3 and forms a sliding connection with the receiving groove 12 inside the extension bracket 4 to adjust the distance between adjacent flanges 1 to adapt to flanges 1 with different distances;

[0029] A compression ring 5 is provided on the outer side of the extension bracket 4, and the gasket 10 inside the outer convex ring 7 is contracted by the hoop 6 on the outer side of one end thereof to achieve the effect of sealing the gap to form a seal;

[0030] Positioning grooves 13 are opened on the outer sides of the compression ring 5 and the outer convex ring 7 for forming a pre-separation with adjacent mechanisms, which is convenient for subsequent cutting and separation for secondary distance adjustment;

[0031] This embodiment provides a flange whose spacing can be conveniently adjusted. By sleeving the outer convex ring 7 with the extension frame 4, the use position of the flange 1 can be adjusted at any time according to the distance between adjacent pipes. At the same time, by using the pre-separation of the mechanical mechanism and the positioning groove 13, it can be adapted to pipelines with different pressures, and at the same time achieve the effect of convenient installation, disassembly and maintenance.

[0032] Among them, a sleeve 8 is sleeved on the outer side of the outer convex ring 7. One end of it is fixedly connected to the positioning groove 13 on the outer side of the outer convex ring 7. One end of the pressure ring 5 is separated by the positioning groove 13 into an isolation block 14. The isolation block 14 and the pressure ring 5 are fixedly connected by welding to form the positioning groove 13.

[0033] Among them, the isolation block 14 and the sleeve 8 are fixedly connected by welding and a welding strip 15 is formed. At this time, only one of the isolation block 14 and the sleeve 8 needs to be separated to release the connection between the flange 1 and the extension frame 4, which is convenient for maintenance and repair.

[0034] Among them, a protruding inner ring sleeve 17 is provided inside the sleeve 8 and is slidably installed in the outer ring groove 16 on the outer side of the outer convex ring 7.

[0035] Among them, a notch is formed on one end face of the inner ring sleeve 17 and the outer ring groove 16 to facilitate positioning the cutting depth and reduce the difficulty of subsequent maintenance and adjustment work.

[0036] Among them, a guiding slope 11 is provided inside the convex platform 3 and is butted against the conical surface at one end of the inner convex ring 9, so that the transmission of fluid is not affected and jamming is prevented, ensuring the smooth flow of the transmission medium.

[0037] Among them, a sealing gasket mechanism is adopted inside the junction of the extension frame 4 and the inner convex ring 9.

[0038] It can be understood that the utility model can conveniently adjust the use position of the flange 1 according to the spacing between adjacent pipes, reduce the working difficulty during laying, and at the same time its installation and disassembly are simple and convenient for secondary adjustment, and it is adapted to pipelines with different pressures, improving the practical performance of the flange 1 and its components.

[0039] A specific application of the operation process of this embodiment is as follows: When in use, first install the extension frame 4 on the outside of the connecting pipe 2 by welding, then adjust the distance between adjacent flanges 1 according to the spacing between adjacent connecting pipes 2, and then drive the sealing gasket 10 to tightly fit against the outer wall of the inner convex ring 9 to form a seal by tightening the hoop 6. In addition, a welding strip 15 can also be formed at the junction of the isolation block 14 and the inner convex ring 9 by welding for connection and fixation to adapt to the use of high-pressure pipelines. At this time, it is separated by cutting one side of the isolation block 14 and the positioning groove 13 on one side of the inner convex ring 9 to achieve the disassembly effect, so as to facilitate secondary spacing adjustment and adapt to subsequent maintenance, replacement and other processing and use.

[0040] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0041] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. An adjustable metal flange, characterized in that, Comprising: Flange (1) and connecting pipe (2); A boss (3) is provided on the outer side of the flange (1), and an extension bracket (4) is also sleeved on the outer side of the connecting pipe (2). One end of the connecting pipe (2) abuts against the inner convex ring (9) inside the extension bracket (4). An outer convex ring (7) is provided on the outer side of the boss (3) to form a sliding connection with the receiving groove (12) inside the extension bracket (4) so as to adjust the distance between adjacent flanges (1) to adapt to flanges (1) with different distances; A compression ring (5) is provided on the outer side of the extension bracket (4). The sealing gasket (10) inside the outer convex ring (7) is retracted by the hoop (6) on the outer side of one end thereof to achieve the effect of sealing the gap to form a seal; Positioning grooves (13) are provided on the outer sides of both the compression ring (5) and the outer convex ring (7) for pre-separation from the adjacent mechanism, which is convenient for subsequent cutting and separation for secondary distance adjustment.

2. The adjustable metal flange according to claim 1, wherein: A sleeve (8) is sleeved on the outer side of the outer convex ring (7). One end thereof is fixedly connected to the positioning groove (13) on the outer side of the outer convex ring (7). One end of the compression ring (5) is separated by the positioning groove (13) into isolation blocks (14).

3. The adjustable metal flange according to claim 2, wherein: The isolation block (14) and the sleeve (8) are fixedly connected by welding to form a welding strip (15).

4. The adjustable metal flange according to claim 2, characterized in that: A protruding inner ring sleeve (17) is provided inside the sleeve (8) and is slidably installed in the outer ring groove (16) on the outer side of the outer convex ring (7).

5. The adjustable metal flange according to claim 4, wherein: A notch is formed on the end face of the inner ring sleeve (17) and the outer ring groove (16) to facilitate positioning the cutting depth.

6. The adjustable metal flange according to claim 1, wherein: A guiding slope (11) is provided inside the boss (3) and is butted against the conical surface at one end of the inner convex ring (9) so that the transmission of fluid is not affected and jamming is prevented.

7. An adjustable metal flange according to claim 1, wherein: A sealing gasket mechanism is adopted on the inner side of the junction of the extension bracket (4) and the inner convex ring (9).

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