CN212361143U - Flange connection structure - Google Patents

Abstract

The utility model discloses a flange connection structure, including pipeline flange and ring flange, pipeline flange is equipped with the support turn-ups, the ring flange paste lean on in support the turn-ups setting, wherein the ring flange is equipped with spacing retaining ring, spacing retaining ring is located support turn-ups periphery, and with support the cooperation of turn-ups butt. The utility model discloses utilize pipeline flange and pipe connection, the butt cooperation between reuse pipeline flange and the ring flange, realize the connection assembly between this flange joint structure and the pipeline, and this flange joint structure utilizes the butt cooperation between support turn-ups and ring flange and the spacing retaining ring, make this ring flange have the function of anti buckling, and then do not take place deformation when ensureing this flange joint structure connecting tube, make this flange joint structure can used repeatedly, and then have the effect of ensureing the sealed effect between two pipelines by this flange joint structure connection.

Description

Flange connection structure

Technical Field

The utility model belongs to the technical field of the pipe connection is relevant, especially, relate to a flange joint structure.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. It is understood that the connection between two pipes is usually performed by using flanges, specifically, a flange is connected to each of the two pipes, and then the two flanges are connected and fixed by bolts and nuts.

However, when two flanges are connected by bolts and nuts, the structural strength of the current flange is low, the two flanges are easily deformed by the extrusion of the bolts and the nuts, so that the two flanges are damaged and need to be replaced when equipment is damaged, alignment of flange connecting holes on the two flanges cannot be guaranteed when new equipment is manufactured, the two flanges cannot be fixed by the bolts and the nuts again, and leakage easily occurs on a sealing surface of the flange.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is necessary to provide a flange connection structure for connecting and fixing pipelines, which solves the technical problems in the prior art.

The flange connecting structure comprises a pipeline flange and a flange plate, wherein the pipeline flange is provided with a supporting flange, the flange plate is attached to the supporting flange, a limiting check ring is arranged on the flange plate and located on the periphery of the supporting flange, and the limiting check ring is abutted and matched with the supporting flange.

As the utility model discloses an optimal scheme, spacing retaining ring with the contained angle that the ring flange position of being connected formed equals support the turn-ups orientation the angle of a side end portion of ring flange.

As the preferred scheme of the utility model, spacing retaining ring with the contained angle that the position formed is connected to the ring flange is 90.

As the utility model discloses an optimal scheme, a plurality of flange connection holes have been seted up to the ring flange, spacing retaining ring has seted up a plurality of corresponding to the logical groove of flange connection hole, lead to the groove with correspond flange connection hole intercommunication.

As the utility model discloses an optimal scheme, it is circular-arc to lead to the groove, lead to the groove the aperture with the aperture of flange connection hole equals.

As the preferred scheme of the utility model, it is the semicircle orifice to lead to the groove.

As the utility model discloses a preferred scheme, the pipeline flange is equipped with extends the convex part, extend the external diameter orientation of convex part support turn-ups direction crescent, and with it is formed with a contained angle to support the turn-ups.

As the preferred scheme of the utility model, the ring flange orientation extend the convex part with the part that supports the turn-ups and be connected the position has been seted up and has been dodged the breach.

As the preferred embodiment of the present invention, the pipe flange, the support flange and the extension protrusion are integrated into an integral structure.

As the preferred scheme of the utility model, the ring flange reaches spacing retaining ring establishes to the integral type structure.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

the utility model provides a flange joint structure utilizes pipeline flange and pipe connection, the butt cooperation between reuse pipeline flange and the ring flange, realize the connection assembly between this flange joint structure and the pipeline, and this flange joint structure utilizes the butt cooperation between support turn-ups and ring flange and the spacing retaining ring, make this ring flange have the function of anti buckling, and then do not take place deformation when ensureing this flange joint structure connecting tube, make this flange joint structure can used repeatedly, and then have the effect of ensureing the sealed effect between two pipelines of being connected by this flange joint structure.

Drawings

Fig. 1 is a schematic structural diagram of a flange connection structure according to an embodiment of the present invention.

Fig. 2 is an enlarged view of a portion P of fig. 1.

Fig. 3 is a schematic structural diagram of the two flange connection structures of the present invention when they are engaged with each other.

10, a pipeline flange; 11. supporting the flanging; 12. an extending projection; 20. a flange plate; 21. a limit retainer ring; 211. a through groove; 22. connecting a flange with a hole; 23. avoiding the notch; 200. a bolt; 201. and a nut.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1 to 3, a flange connection structure according to an embodiment of the present invention includes a pipe flange 10 and a flange plate 20.

In this embodiment, the pipe flange 10 is provided with a support flange 11, the flange plate 20 is disposed to abut against the support flange 11, wherein the flange plate 20 is provided with a limit stop ring 21, and the limit stop ring 21 is located at the periphery of the support flange 11 and is in abutting fit with the support flange 11. That is, in the flange connection structure of the present embodiment, the flange 20 and the stopper ring 21 are abutted against the support flange 11 of the pipe flange 10, so that the flange 20 is supported against bending.

The angle of the included angle formed by the connecting position of the limiting retainer ring 21 and the flange plate 20 is equal to the angle of the connecting turning plate 11 towards the end part of one side of the flange plate 20. The connecting part of the limiting retainer ring 21 and the flange plate 20 of the present embodiment can also be attached to the connecting turning plate 11, so as to increase the contact area between the limiting retainer ring 21, the flange plate 20 and the supporting turning edge 11, and further improve the bending resistance of the flange plate 20.

Specifically, the angle formed by the connecting position of the limiting retainer ring 21 and the flange plate 20 is 90 °.

It can be understood that the flange plate 20 is provided with a plurality of flange connection holes 22, and the plurality of flange connection holes 22 are uniformly distributed around the flange plate 20, so that when the flange connection structure is matched with a pipeline, the flange plates 20 on two flange connection structures can penetrate through the respective flange connection holes 22 by using bolts 200, and then are locked by using nuts 201, thereby realizing the connection and fixation of the flange connection structure to two pipelines. When the flange connection structure of the present embodiment is engaged with a pipeline, the pipeline flange 10 of the flange connection structure is fixed to the pipeline by welding.

In this embodiment, the limiting retainer 21 is provided with a plurality of through grooves 211 corresponding to the flange connection holes 22, and the through grooves 221 are communicated with the corresponding flange connection holes 22, so that the bolts 200 can pass through the through grooves 211 on the limiting retainer 21 and penetrate through the flange connection holes 22 of the flange plate 20.

Moreover, the through groove 211 is arc-shaped, the aperture of the channel 211 is equal to that of the flange connecting hole 22, so that the bolt 200 passing through the through groove 211 can be attached to the groove wall of the through groove 211 on the limit retainer ring 21, and the limit retainer ring 21 can support the bolt 200, thereby preventing the bolt 200 from being bent, and further improving the bending resistance of the flange plate 200 of the embodiment.

Specifically, the through slot 211 is a semicircular hole, that is, the central angle of the channel 211 is 180 °. It should be noted that the through groove 211 is not limited to be a semicircular hole, and the central angle corresponding to the channel 211 can be set to any other angle according to the use requirement, such as 150 ° or 120 °; the groove wall of the through groove 211 of the limiting retainer ring 21 of the present embodiment may be a thread structure that is engaged with the thread of the bolt 200 according to the use requirement.

The pipe flange 10 of the present embodiment is provided with an extending convex portion 12, wherein the outer diameter of the extending convex portion 12 gradually increases toward the direction of the supporting flange 11, and forms an included angle with the supporting flange 11, so as to improve the overall structural strength of the pipe flange 10 and prevent the supporting flange 11 from deforming due to stress. It should be noted that the included angle formed between the extending protrusion 12 and the supporting flange 11 is an obtuse angle.

Accordingly, the flange 20 of the present embodiment has an escape notch 23 towards the connecting position of the extending protrusion 12 and the support flange 11, so that the flange 20 can be attached to the support flange 11.

In addition, the pipe flange 10, the support flange 11, and the extension portion 12 according to the present embodiment are formed in an integrated structure, and the flange plate 20 and the stopper ring 21 are formed in an integrated structure.

To sum up, the utility model provides a flange joint structure utilizes pipeline flange and pipe connection, the butt cooperation between reuse pipeline flange and the ring flange, realize the connection assembly between this flange joint structure and the pipeline, and this flange joint structure utilizes the butt cooperation between support turn-ups and ring flange and the spacing retaining ring, make this ring flange have the function of anti buckling, and then do not take place deformation when guaranteeing this flange joint structure connecting tube, make this flange joint structure can used repeatedly, and then have the effect of ensureing the sealed effect between two pipelines of being connected by this flange joint structure.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a flange connection structure, its characterized in that, includes pipeline flange and ring flange, pipeline flange is equipped with the support turn-ups, the ring flange paste lean on in support turn-ups setting, wherein the ring flange is equipped with spacing retaining ring, spacing retaining ring is located support turn-ups's periphery, and with support turn-ups butt cooperation.

2. The flange connection structure according to claim 1, wherein an angle formed by a connecting position of the limit retainer and the flange is equal to an angle of one side end portion of the support flange toward the flange.

3. The flange connection structure according to claim 2, wherein an angle formed by the position where the retaining ring is connected to the flange plate is 90 °.

4. The flange connection structure according to claim 1, wherein the flange plate is provided with a plurality of flange connection holes, and the retainer ring is provided with a plurality of through grooves corresponding to the flange connection holes, the through grooves being communicated with the corresponding flange connection holes.

5. The flange connection structure according to claim 4, wherein the through groove has a circular arc shape, and a diameter of the through groove is equal to a diameter of the flange connection hole.

6. The flange connection structure according to claim 5, wherein the through groove is a semicircular hole.

7. The flange connection structure according to claim 1, wherein the pipe flange is provided with an extension protrusion having an outer diameter gradually increasing toward the support flange and forming an angle with the support flange.

8. The flange connection structure according to claim 7, wherein a portion of the flange plate facing a position where the extending protrusion is connected to the support flange is provided with an escape notch.

9. The flange connection according to claim 8, wherein the pipe flange, the support flange, and the extension protrusion are provided as an integral structure.

10. The flange connection according to claim 1, wherein the flange plate and the retainer ring are provided as an integral structure.

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