CN213064997U - Reliably sealed flange - Google Patents

Reliably sealed flange Download PDF

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Publication number
CN213064997U
CN213064997U CN202021492064.5U CN202021492064U CN213064997U CN 213064997 U CN213064997 U CN 213064997U CN 202021492064 U CN202021492064 U CN 202021492064U CN 213064997 U CN213064997 U CN 213064997U
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CN
China
Prior art keywords
flange
annular
sealing
groove
embedding
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202021492064.5U
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Chinese (zh)
Inventor
张义
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shangdian Flange Pipe Fittings Co ltd
Original Assignee
Shangdian Flange Pipe Fittings Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shangdian Flange Pipe Fittings Co ltd filed Critical Shangdian Flange Pipe Fittings Co ltd
Priority to CN202021492064.5U priority Critical patent/CN213064997U/en
Application granted granted Critical
Publication of CN213064997U publication Critical patent/CN213064997U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a reliably sealed flange, which comprises an upper flange, a lower flange, a bolt and a sealing washer, wherein the two contact surfaces of the upper flange and the lower flange are respectively provided with an upper annular sealing groove and a lower annular sealing groove; the upper annular sealing groove is provided with a positioning hole matched with the embedding part, and the lower annular sealing groove is provided with an annular convex rib matched with the annular concave groove; the joint of the embedding part is fixed on the positioning hole, the sealing gasket is prevented from slipping in the using process, and the concentricity of the sealing gasket and the pipeline is ensured, so that the sealing performance of the sealing gasket is ensured, meanwhile, the other end face of the sealing gasket is arranged in the lower annular sealing groove, so that the annular convex rib is arranged in the annular concave groove, and the sealing performance of the upper flange and the lower flange in mutual matching is improved.

Description

Reliably sealed flange
Technical Field
The utility model relates to a flange field, more specifically say, it relates to a sealed reliable flange.
Background
The flange is a part for connecting pipes and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the device for connection between two devices. The flange connection or flange joint is a detachable connection which is formed by connecting a flange, a gasket and a bolt with each other to form a combined sealing structure. The flange connection is convenient to use and can bear larger pressure. In industrial pipelines, flanged connections are widely used.
However, due to the change of the air pressure inside the pipeline, axial force is generated inside the pipeline to cause bolts to be stretched, the flange sealing surfaces move along the directions separated from each other, the sealing performance between the flanges is reduced, the sealing element is often sleeved at the flange joint, the conventional sealing element mainly uses a thin circular gasket, but the installation and fixation of the sealing element mainly adopts pressing force between the two flanges, the sliding of the sealing element is easy to generate after long-time use, and the concentricity of the sealing element and the pipeline is difficult to ensure, so that the sealing performance of the sealing element is influenced.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art existence, the utility model aims to provide a sealed reliable flange.
In order to achieve the above purpose, the utility model provides a following technical scheme:
the utility model provides a sealed reliable flange, includes flange, lower flange, bolt and seal ring, two contact surfaces of upper flange and lower flange on be provided with annular seal groove and lower annular seal groove respectively, upper flange and lower flange between be connected through the bolt, seal ring be located between two contact surfaces of flange and lower flange, characterized by: the sealing gasket comprises a sealing gasket main body, wherein a plurality of embedding parts are arranged on one end face of the sealing gasket main body, and the embedding parts are uniformly distributed on one end face of the sealing gasket main body at intervals; the other end surface of the sealing gasket main body is provided with an annular concave groove; the upper annular sealing groove is provided with a positioning hole matched with the embedding part, and the lower annular sealing groove is provided with an annular convex rib matched with the annular concave groove;
when the upper flange and the lower flange are matched with each other, one end face of the sealing washer is matched and fixed in the upper annular sealing groove through the embedding part and the positioning hole, and the other end face of the sealing washer is arranged in the lower annular sealing groove, so that the annular convex rib is arranged in the annular concave groove.
The utility model discloses further set up: the cross section of the upper annular sealing groove is rectangular, and the cross section of the lower annular sealing groove is trapezoidal.
The utility model discloses further set up: the mosaic part comprises a connecting part and an inserting part, the inserting part is of a conical structure, one end of the connecting part is connected with the sealing gasket main body, the other end of the connecting part is connected with the large end face of the inserting part, and the diameter of the large end face is larger than that of the connecting part.
The utility model discloses beneficial effect: when the upper flange and the lower flange are mutually matched, one end face of the sealing washer is fixed in the upper annular sealing groove in a matched mode through the embedding part and the positioning hole, the embedding part is clamped and fixed on the positioning hole, the sealing washer is prevented from slipping in the using process, the sealing washer and the pipeline are guaranteed to be concentric, the sealing performance of the sealing washer is guaranteed, meanwhile, the other end face of the sealing washer is arranged in the lower annular sealing groove, the annular convex rib is arranged in the annular concave groove, and the sealing performance of the upper flange and the lower flange in the matched mode is improved.
Drawings
Fig. 1 is a cross-sectional view of a reliable seal flange of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
fig. 3 is a schematic structural view of a sealing gasket.
Description of reference numerals: 1. an upper flange; 11. an upper annular seal groove; 12. positioning holes; 2. a lower flange; 21. a lower annular seal groove; 22. an annular convex rib; 3. a bolt; 4. a sealing gasket; 41. a gasket body; 42. an embedding part; 421. a connecting portion; 422. a plug-in part; 43. an annular recessed groove.
Detailed Description
The reliable sealing flange of the present invention will be described in further detail with reference to fig. 1 to 3.
A flange reliable in sealing comprises an upper flange 1, a lower flange 2, bolts 3 and a sealing washer 4, wherein an upper annular sealing groove 11 and a lower annular sealing groove 21 are respectively arranged on two contact surfaces of the upper flange 1 and the lower flange 2, the upper flange 1 is connected with the lower flange 2 through the bolts 3, the sealing washer 4 is positioned between the two contact surfaces of the upper flange 1 and the lower flange 2, the sealing washer 4 comprises a sealing washer body 41, a plurality of embedding parts 42 are arranged on one end surface of the sealing washer body 41, and the embedding parts 42 are uniformly distributed on one end surface of the sealing washer body 41 at intervals; an annular recessed groove 43 is provided on the other end surface of the gasket main body 41; the upper annular sealing groove 11 is provided with a positioning hole 12 matched with the embedding part 42, and the lower annular sealing groove 21 is provided with an annular convex rib 22 matched with the annular concave groove 43; when upper flange 1 and lower flange 2 mutually support, a terminal surface of seal ring 4 will be fixed in last annular seal groove 11 through inlay portion 42 and locating hole 12 cooperation, inlay portion 42 joint is fixed on locating hole 12, avoids seal ring 4 to take place to slide in the use, guarantees that seal ring 4 and pipeline are concentric to guarantee seal ring 4 leakproofness, another terminal surface of seal ring 4 arranges down annular seal groove 21 in simultaneously for annular protruding muscle 22 is arranged in annular depressed groove 43, improves the leakproofness when upper flange 1 and lower flange 2 mutually support.
The cross section of the upper annular sealing groove 11 is rectangular, the cross section of the lower annular sealing groove 21 is trapezoidal, so that one end face of the sealing washer 4 is convenient to mount on the upper annular sealing groove 11, the other end face of the sealing washer is arranged in the lower annular sealing groove 21, the side wall of the sealing washer 4 and the side face of the lower annular sealing groove 21 are mutually pressed, and the sealing performance of the sealing washer is improved.
The insert portion 42 includes a connecting portion 421 and an inserting portion 422, the inserting portion 422 is a conical structure, one end of the connecting portion 421 is connected to the sealing gasket main body 41, and the other end of the connecting portion is connected to the large end face of the inserting portion 422, so that the small end face of the inserting portion 422 aligns to the positioning hole 12 and presses through the positioning hole 12, the connecting portion 421 is placed on the positioning hole 12, and the diameter of the large end face is larger than that of the connecting portion 421, so that the insert portion 42 is firmly fixed to the positioning hole 12.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (1)

1. The utility model provides a sealed reliable flange, includes flange, lower flange, bolt and seal ring, two contact surfaces of upper flange and lower flange on be provided with annular seal groove and lower annular seal groove respectively, upper flange and lower flange between be connected through the bolt, seal ring be located between two contact surfaces of flange and lower flange, characterized by: the sealing gasket comprises a sealing gasket main body, wherein a plurality of embedding parts are arranged on one end face of the sealing gasket main body, and the embedding parts are uniformly distributed on one end face of the sealing gasket main body at intervals;
the other end surface of the sealing gasket main body is provided with an annular concave groove;
the upper annular sealing groove is provided with a positioning hole matched with the embedding part, and the lower annular sealing groove is provided with an annular convex rib matched with the annular concave groove;
when the upper flange and the lower flange are matched with each other, one end face of the sealing washer is matched and fixed in the upper annular sealing groove through the embedding part and the positioning hole, and the other end face of the sealing washer is arranged in the lower annular sealing groove, so that the annular convex rib is arranged in the annular concave groove;
the cross section of the upper annular sealing groove is rectangular, and the cross section of the lower annular sealing groove is trapezoidal;
the mosaic part comprises a connecting part and an inserting part, the inserting part is of a conical structure, one end of the connecting part is connected with the sealing gasket main body, the other end of the connecting part is connected with the large end face of the inserting part, and the diameter of the large end face is larger than that of the connecting part.
CN202021492064.5U 2020-07-24 2020-07-24 Reliably sealed flange Active CN213064997U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021492064.5U CN213064997U (en) 2020-07-24 2020-07-24 Reliably sealed flange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021492064.5U CN213064997U (en) 2020-07-24 2020-07-24 Reliably sealed flange

Publications (1)

Publication Number Publication Date
CN213064997U true CN213064997U (en) 2021-04-27

Family

ID=75577563

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021492064.5U Active CN213064997U (en) 2020-07-24 2020-07-24 Reliably sealed flange

Country Status (1)

Country Link
CN (1) CN213064997U (en)

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