Novel flange connecting structure

Abstract

The utility model discloses a novel flange connecting structure, and particularly relates to the technical field of flanges, the novel flange connecting structure comprises a first flange and a second flange, pipelines are fixedly arranged at one end of the first flange and one end of the second flange, a positioning mechanism is arranged on one side of the first flange, and the positioning mechanism comprises a plurality of positioning frames fixedly arranged on one side of the first flange. One end of the positioning frame is in an arc shape, a partition plate is fixedly arranged in the positioning frame, fixing cylinders are fixedly arranged at the two ends of the partition plate, fixing columns are slidably arranged in the fixing cylinders, an inclined block is fixedly arranged at one end of each fixing column, a spring is fixedly arranged on one side of each inclined block, and a plurality of L-shaped limiting plates are fixedly arranged at the bottom of each inclined block. Positioning is effectively achieved, it is ensured that the relative positions of the first flange and the second flange are accurate, a stable foundation is provided for follow-up sealing and bolt connection, the connection reliability is enhanced, double sealing is achieved, and the sealing performance is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flange technical field more specifically, the utility model relates to a novel flange connecting structure. BACKGROUND

[0002] In industrial production and mechanical equipment, flange connection is a commonly used connecting mode, for connecting pipeline, pipe fitting and equipment etc., at present, two flanges are usually connected through bolts, and the connecting part of the two flanges is usually sealed through a gasket or a sealing ring.

[0003] However, when the medium temperature is 900 DEG C, the high-temperature sealing flange often appears plastic deformation of the bolt and plastic deformation of the gasket, which will cause the problem of medium leakage at the flange connecting part.

[0004] Through retrieval, the Chinese patent with the authorization announcement number CN222503041U discloses a flange connecting structure, the first interface part of the first flange is sealed and connected with the first end face of the second interface part of the second flange, so that the first flow channel of the first flange is communicated with the second flow channel of the second flange, the first connecting part of the first flange is fixedly connected with the second connecting part of the second flange, so that the first flange is fixedly connected with the second flange, wherein, since the pipe wall inside the first interface part of the first flange has at least one cooling liquid cavity, when the first flow channel and the second flow channel flow through high-temperature medium, the temperature of the sealing material such as the first sealing member and the second sealing member and the bolt fastening part can be reduced by injecting cooling liquid in the cooling cavity, the sealing reliability of the flange connecting part is improved, and two seals are formed between the first flange and the second flange through the first sealing member and the second sealing member, so that the sealing reliability is higher.

[0005] However, when the first flange and the second flange are connected, the staff needs to constantly adjust the position of the flange plate to ensure the coaxiality and the fit of the sealing surface, so that the first sealing member and the second sealing member are difficult to be quickly and accurately placed in the predetermined position, which not only reduces the installation efficiency, but also may damage the sealing gasket or the sealing surface of the flange plate due to multiple adjustments, thereby affecting the use effect. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a novel flange connecting structure to solve the problems in the above background art.

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

[0008] A novel flange connecting structure, comprising a first flange and a second flange, one end of the first flange and the second flange is fixedly provided with a pipeline, one side of the first flange is provided with a positioning mechanism;

[0009] The positioning mechanism comprises a plurality of positioning frames fixed on one side of the first flange, one end of the positioning frame is designed in an arc shape, a partition plate is fixedly arranged in the positioning frame, and a fixed cylinder is fixedly arranged at both ends of the partition plate, and a fixed column is slidably arranged in the fixed cylinder;

[0010] One end of the fixed column is fixedly provided with an inclined block, a spring is fixedly arranged on one side of the inclined block, a plurality of L-shaped limiting plates are fixedly arranged at the bottom of the inclined block, a plurality of positioning grooves are formed in the surface of the second flange, and the positioning frame is matched with the positioning groove;

[0011] One end of the spring is connected with the partition plate, the spring is sleeved outside the fixed cylinder and the fixed column, a through groove is formed in the surface of the positioning frame, and the inclined block is slidably connected with the through groove.

[0012] By adopting the above technical scheme: the arc-shaped design of one end of the positioning frame facilitates quick alignment with the positioning groove, improves installation efficiency, effectively realizes positioning, ensures the accurate relative position of the first flange and the second flange, provides a stable foundation for subsequent sealing and bolt connection, and enhances the connection reliability.

[0013] As a further description of the above technical scheme: one side of the first flange is provided with a sealing mechanism, the sealing mechanism comprises an outer sealing ring fixedly arranged on one side of the first flange, a sealing groove is formed in the surface of the through groove, the outer sealing ring is matched with the sealing groove, an inner sealing ring is fixedly arranged on the inner wall of the second flange, and the inner sealing ring is matched with the inner wall of the first flange.

[0014] By adopting the above technical scheme: the double sealing of the outer sealing ring and the inner sealing ring greatly improves the sealing performance, is suitable for pipeline systems under various complex working conditions and different pressures and media, has a simple structure and is easy to install, sealing is realized through the matching of the sealing ring and the corresponding structure, and the maintenance cost and difficulty are reduced.

[0015] As a further description of the above technical scheme: the surface of the first flange and the surface of the second flange are both provided with threaded holes, a bolt is threadedly connected in the threaded hole, one end of the bolt is threadedly connected with a nut, and a gasket is arranged between the bolt and the first flange.

[0016] By adopting the above technical scheme: firm mechanical connection of the first flange and the second flange is realized, a large pressure and tension can be borne, the stability of the connection is ensured, the friction between the bolt and the first flange is increased by the arrangement of the gasket, bolt loosening is effectively prevented, the reliability of the connection structure is enhanced, and the versatility of the flange connection structure is improved.

[0017] The technical effects and advantages of the utility model are as follows:

[0018] 1、By setting the positioning mechanism, compared with the prior art, one end of the positioning frame is arc-shaped, which facilitates alignment with the positioning groove, the corresponding position can be quickly found when the two flanges are close, the installation efficiency is improved, and the cooperation of the inclined block, the spring, the fixed column and the fixed cylinder is utilized, the inclined block is compressed and the spring is compressed during the close of the two flanges, and when the positioning frame completely enters the positioning groove, the spring force resets the inclined block, the L-shaped limiting plate is clamped into the appropriate position, automatic preliminary positioning is realized, the relative position of the two flanges is accurately ensured, a stable foundation is provided for subsequent sealing and bolt connection, misalignment in further operation is prevented, the reliability of connection is ensured, the overall positioning process does not require complex operation and additional tools, the installation difficulty is reduced, and installation time and labor cost are saved;

[0019] 2、By setting the sealing mechanism, compared with the prior art, the outer sealing ring is matched with the sealing groove, can effectively block the invasion of external impurities and liquid, protect the connection part, the inner sealing ring is matched with the inner wall of the first flange, prevents the leakage of the medium in the pipeline, double sealing greatly improves the sealing performance, guarantees the safety and stability of the system, the bolt passes through the threaded hole and is tightened with the nut, so that the two flanges are tightly connected, the setting of the gasket increases the friction force between the bolt and the flange, prevents the bolt from loosening, simultaneously avoids the direct wear of the bolt on the surface of the flange, prolongs the service life of the flange, and reduces the maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure schematic view of the utility model.

[0021] Figure 2 It is the positioning mechanism section structure schematic view of the utility model.

[0022] Figure 3 It is the sealing mechanism split structure schematic view of the utility model.

[0023] Figure 4 It is the sealing mechanism split detail structure schematic view of the utility model.

[0024] Figure 5 It is the overall front view section structure schematic view of the utility model.

[0025] The figure mark is: 1, first flange;2, second flange;3, pipeline;4, positioning frame;5, partition;6, fixed cylinder;7, fixed column;8, inclined block;9, spring;10, L-shaped limiting plate;11, positioning groove;12, through groove;13, outer sealing ring;14, sealing groove;15, inner sealing ring;16, threaded hole;17, bolt;18, nut;19, gasket. DETAILED DESCRIPTION

[0026] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the scope of the utility model protection.

[0027] The utility model discloses a novel flange connecting structure as shown in Figures 1-5 A novel flange connecting structure, including first flange 1 and second flane 2, one end of first flange 1 and second flane 2 is fixedly arranged with pipeline 3, one side of first flange 1 is provided with positioning mechanism,

[0028] Positioning mechanism includes a plurality of positioning frame 4 fixedly arranged at one side of first flange 1, one end of positioning frame 4 is arranged as arc, the inside of positioning frame 4 is fixedly arranged with baffle 5, both ends of baffle 5 are fixedly arranged with fixed cylinder 6, the inside of fixed cylinder 6 is slidably arranged with fixed column 7,

[0029] One end of fixed column 7 is fixedly arranged with inclined block 8, one side of inclined block 8 is fixedly arranged with spring 9, the bottom of inclined block 8 is fixedly arranged with a plurality of L-shaped limit plate 10, the surface of second flane 2 is provided with a plurality of positioning slot 11, positioning frame 4 is matched with positioning slot 11,

[0030] One end of spring 9 is connected with baffle 5, spring 9 is sleeved on the outside of fixed cylinder 6 and fixed column 7, the surface of positioning frame 4 is provided with through slot 12, inclined block 8 is slidably connected with through slot 12,

[0031] First flange 1 and second flane 2 are close, because one end of first flange 1 and second flane 2 is fixedly arranged with pipeline 3, the connecting direction of pipeline 3 is correct at this time, because one end of positioning frame 4 is arranged as arc, when first flange 1 and second flane 2 are close, positioning frame 4 can be more conveniently aligned with the positioning slot 11 on the surface of second flane 2,

[0032] When positioning frame 4 and positioning slot 11 gradually close and initially contact, the inclined block 8 at one end of fixed column 7 begins to play a role, because one side of inclined block 8 is fixedly arranged with spring 9, and one end of spring 9 is connected with baffle 5 and sleeved on the outside of fixed cylinder 6 and fixed column 7, the surface of positioning frame 4 is provided with through slot 12, inclined block 8 is slidably connected with through slot 12,

[0033] With first flange 1 and second flane 2 further close, inclined block 8 will be extruded along the through slot 12 to the inside of positioning frame 4, and spring 9 is compressed, fixed column 7 also slides in fixed cylinder 6,

[0034] When the positioning frame 4 is completely in the positioning groove 11, the inclined block 8 is restored to the original position under the elastic force of the spring 9, at this time, the plurality of L-shaped limiting plates 10 are clamped into the appropriate position in the positioning groove 11, the preliminary positioning is completed, and the relative position of the first flange 1 and the second flange 2 is fixed.

[0035] Referring to Figures 2-3 As shown, one side of the first flange 1 is provided with a sealing mechanism, the sealing mechanism comprises an outer sealing ring 13 fixedly arranged on one side of the first flange 1, a sealing groove 14 is formed on the surface of the through groove 12, the outer sealing ring 13 is matched with the sealing groove 14, and an inner sealing ring 15 is fixedly arranged on the inner wall of the second flange 2 and matched with the inner wall of the first flange 1.

[0036] The outer sealing ring 13 arranged on one side of the first flange 1 is matched with the sealing groove 14 on the surface of the through groove 12 after the preliminary positioning of the first flange 1 and the second flange 2, so that external sealing is formed, and external impurities, liquids and the like are prevented from entering the flange connection part.

[0037] The inner sealing ring 15 fixedly arranged on the inner wall of the second flange 2 is matched with the inner wall of the first flange 1, so that internal sealing is formed, and the internal medium of the pipeline 3 is prevented from leaking from the flange connection part.

[0038] Referring to Figures 4-5 As shown, the surfaces of the first flange 1 and the second flange 2 are provided with threaded holes 16, the threaded holes 16 are internally screwed with bolts 17, one end of the bolt 17 is screwed with a nut 18, and the bolt 17 is provided with a gasket 19 between the first flange 1.

[0039] The bolt 17 is inserted through the corresponding threaded holes 16 of the first flange 1 and the second flange 2, and the gasket 19 is arranged between the bolt 17 and the first flange 1, so that the friction is increased, the bolt is prevented from loosening, and the surface of the flange is protected.

[0040] Then the nut 18 is screwed on one end of the bolt 17, the first flange 1 and the second flange 2 are tightly connected together by tightening the nut 18, and the gasket 19 further ensures the stability and sealing performance of the connection.

[0041] The working principle of the utility model:

[0042] The utility model discloses a novel flange connection structure, when using, the first flange 1 and the second flange 2 are close, because the one end of the first flange 1 and the second flange 2 is fixedly arranged with the pipeline 3, at this time, the connecting direction of the pipeline 3 is guaranteed to be correct, because one end of the positioning frame 4 is arranged as an arc, when the first flange 1 and the second flange 2 are close, the positioning frame 4 can be more conveniently aligned with the positioning groove 11 on the surface of the second flange 2.

[0043] When the positioning frame 4 gradually approaches and initially contacts the positioning groove 11, the inclined block 8 at one end of the fixing column 7 begins to play a role, because one side of the inclined block 8 is fixedly provided with the spring 9, and one end of the spring 9 is connected with the partition plate 5 and is sleeved outside the fixing cylinder 6 and the fixing column 7, the surface of the positioning frame 4 is provided with the through groove 12, and the inclined block 8 is in sliding connection with the through groove 12;

[0044] With the further approach of the first flange 1 and the second flange 2, the inclined block 8 is extruded by the surface of the second flange 2, slides to the inside of the positioning frame 4 along the through groove 12, and compresses the spring 9, and the fixing column 7 also slides in the fixing cylinder 6;

[0045] When the positioning frame 4 completely enters the positioning groove 11, the inclined block 8 is restored to the original position under the elastic force of the spring 9, at this time, the plurality of L-shaped limiting plates 10 are clamped into the appropriate positions in the positioning groove 11, the preliminary positioning is completed, and the relative positions of the first flange 1 and the second flange 2 are fixed;

[0046] At the same time, the outer sealing ring 13 arranged on one side of the first flange 1 matches the sealing groove 14 on the surface of the through groove 12 after the preliminary positioning of the first flange 1 and the second flange 2, to form external sealing, to prevent impurities, liquids and the like from entering the flange connection part;

[0047] The inner sealing ring 15 fixedly arranged on the inner wall of the second flange 2 matches the inner wall of the first flange 1, to form internal sealing, to ensure that the medium in the pipeline 3 will not leak from the flange connection part;

[0048] Then the bolt 17 is threaded through the corresponding threaded holes 16 on the first flange 1 and the second flange 2, the gasket 19 is arranged between the bolt 17 and the first flange 1, to increase the friction, prevent the bolt from loosening and protect the surface of the flange;

[0049] Then the nut 18 is threaded at one end of the bolt 17, the first flange 1 and the second flange 2 are tightly connected together by tightening the nut 18, and the gasket 19 further ensures the stability and sealing performance of the connection.

[0050] The above are preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered in the protection scope of the application.

Claims

1. A new type of flange connection structure comprising a first flange (1) and a second flange (2), characterized in that: One end of the first flange (1) and the second flange (2) is fixedly provided with a pipeline (3), one side of the first flange (1) is provided with a positioning mechanism; The positioning mechanism comprises a plurality of positioning frames (4) fixedly arranged on one side of the first flange (1), one end of the positioning frame (4) is arranged in an arc shape, a partition plate (5) is fixedly arranged in the positioning frame (4), a fixed cylinder (6) is fixedly arranged at both ends of the partition plate (5), and a fixed column (7) is slidably arranged in the fixed cylinder (6); One end of the fixed column (7) is fixedly provided with an inclined block (8), one side of the inclined block (8) is fixedly provided with a spring (9), a plurality of L-shaped limiting plates (10) are fixedly arranged at the bottom of the inclined block (8), and a plurality of positioning grooves (11) are formed in the surface of the second flange (2), the positioning frame (4) is matched with the positioning groove (11).

2. The novel flange joint structure according to claim 1, characterized by: One end of the spring (9) is connected with the partition plate (5), the spring (9) is sleeved outside the fixed cylinder (6) and the fixed column (7), a through groove (12) is formed in the surface of the positioning frame (4), and the inclined block (8) is slidably connected with the through groove (12).

3. The novel flange joint structure according to claim 2, characterized by: One side of the first flange (1) is provided with a sealing mechanism, the sealing mechanism comprises an outer sealing ring (13) fixedly arranged on one side of the first flange (1), a sealing groove (14) is formed in the surface of the through groove (12), and the outer sealing ring (13) is matched with the sealing groove (14).

4. The novel flange joint structure according to claim 1, characterized by: An inner sealing ring (15) is fixedly arranged on the inner wall of the second flange (2), and the inner sealing ring (15) is matched with the inner wall of the first flange (1).

5. The novel flange joint structure according to claim 1, characterized by: Threaded holes (16) are formed in the surfaces of the first flange (1) and the second flange (2), and bolts (17) are screwed in the threaded holes (16).

6. The novel flange joint structure according to claim 5, characterized by: One end of the bolt (17) is screwed with a nut (18), and a gasket (19) is arranged between the bolt (17) and the first flange (1).

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