CN209991052U

CN209991052U - Flange with good sealing performance

Info

Publication number: CN209991052U
Application number: CN201920858299.2U
Authority: CN
Inventors: 张战军; 刘胜道
Original assignee: Zhejiang Hualing Flange Co Ltd
Current assignee: Zhejiang Hualing Flange Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-01-24
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a flange that leakproofness is good, including disk body and the body of being connected with the disk body, the disk body is established to two upper and lower supports together, and connects through the bolt and the nut that circumference set up between two disk bodies, is provided with the curved surface mechanism that can increase the contact surface and improve the leakproofness between two disk bodies, curved surface mechanism is the annular recess that sets up at the disk body lower extreme of upside, and the upper end of the disk body of downside is provided with the annular arch in the recess of card advance, the inner chamber bottom of recess is provided with the elastomeric element who increases the leakproofness. Through bolted connection between two disk bodies, connect through convex recess and arch between two disk bodies simultaneously, for the plane, increased area of contact, sealed effect is better, and the bottom of recess is provided with the sealing washer, increases the leakproofness, and the recess that sets up inside and outside three rings like this has increased area of contact, has also played triple sealed guard action.

Description

Flange with good sealing performance

Technical Field

The utility model relates to a flange leakproofness improves the field, specifically is a flange that leakproofness is good.

Background

The flange is common in our life, and is used for connecting pipelines, the contact end surface of the existing flange is a plane, the smaller the contact area is, the more easy the leakage and leakage of air and the lower the sealing performance is, and therefore, the flange capable of increasing the contact area under the normal size to improve the sealing performance is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flange that leakproofness is good to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a flange with good sealing performance comprises a disc body and a pipe body connected with the disc body, wherein the disc body is provided with an upper part and a lower part which are abutted together, and the two disc bodies are connected through bolts and nuts which are arranged in the circumferential direction;

a curved surface mechanism capable of increasing the contact surface to improve the sealing performance is arranged between the two disc bodies.

Preferably, the curved surface mechanism is an annular groove arranged at the lower end of the upper tray body, an annular bulge clamped into the groove is arranged at the upper end of the lower tray body, and an elastic component for increasing the sealing property is arranged at the bottom of an inner cavity of the groove.

Preferably, the elastic component is a sealing ring clamped at the bottom of the inner cavity of the groove.

Preferably, the cross section of each groove is arc-shaped, and the two adjacent grooves are in arc transition.

Preferably, three rings are arranged inside and outside the groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the two disc bodies are connected through the bolts, and meanwhile, the two disc bodies are connected through the arc-shaped grooves and the arc-shaped bulges, so that the contact area is increased relative to a plane, and the sealing effect is better;

2. the bottom of the groove is provided with the sealing ring, so that the sealing performance is improved, the contact area is increased by the three circles of grooves arranged inside and outside, and the triple sealing protection effect is also realized.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a bottom view of the upper tray body of the present invention.

In the figure: 1 disk body, 11 tubular bodies, 12 bolts, 2 grooves, 21 bulges and 22 sealing rings.

Detailed Description

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.

Please refer to fig. 1 to 3, the present invention provides a flange with good sealing performance: a flange with good sealing performance comprises a disk body 1 and a pipe body 11 connected with the disk body 1, wherein the disk body 1 is arranged to be abutted together by an upper part and a lower part, and the two disk bodies 1 are connected through bolts 12 and nuts which are circumferentially arranged.

A curved surface mechanism capable of increasing a contact surface to improve the sealing property is arranged between the two disc bodies 1, the curved surface mechanism is an annular groove 2 arranged at the lower end of the disc body 1 at the upper side, an annular bulge 21 clamped into the groove 2 is arranged at the upper end of the disc body 1 at the lower side, the contact area of the groove 2 is increased relative to a plane, the sealing effect is improved, an elastic part for increasing the sealing property is arranged at the bottom of an inner cavity of the groove 2, the sealing property is increased by extrusion of the elastic part, the elastic part is a sealing ring 22 clamped at the bottom of the inner cavity of the groove 2, sealing is realized through the sealing ring 22, the sealing property is increased, the cross section of the groove 2 is arc-shaped, the arc-shaped is more easily attached and clamped, the arc-shaped transition between the two adjacent grooves 2 is realized, the arc-shaped transition is avoided, edges, the manufacturing cost is excessively increased.

The working principle is as follows: the two disc bodies 1 are connected through the bolts 12, meanwhile, the two disc bodies 1 are connected through the arc-shaped grooves 2 and the protrusions 21, compared with a plane, the contact area is increased, the sealing effect is better, the sealing rings 22 are arranged at the bottoms of the grooves 2, the sealing performance is improved, the grooves 2 which are arranged inside and outside three rings are increased in contact area, and the triple sealing protection effect is also achieved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A flange with good sealing performance comprises a disc body (1) and a pipe body (11) connected with the disc body (1), wherein the disc body (1) is arranged to be abutted together in an upper-lower mode, and the two disc bodies (1) are connected through bolts (12) and nuts which are circumferentially arranged;

the method is characterized in that: a curved surface mechanism capable of increasing the contact surface to improve the sealing property is arranged between the two disc bodies (1).

2. The flange with good sealing performance as claimed in claim 1, wherein: the curved surface mechanism is an annular groove (2) arranged at the lower end of the disc body (1) on the upper side, an annular bulge (21) clamped into the groove (2) is arranged at the upper end of the disc body (1) on the lower side, and an elastic component for increasing the sealing property is arranged at the bottom of an inner cavity of the groove (2).

3. The flange with good sealing performance as claimed in claim 2, wherein: the elastic component is a sealing ring (22) clamped at the bottom of the inner cavity of the groove (2).

4. The flange with good sealing performance as claimed in claim 2, wherein: the cross section of each groove (2) is arc-shaped, and the two adjacent grooves (2) are in arc transition.

5. The flange with good sealing performance as claimed in claim 2, wherein: three rings are arranged inside and outside the groove (2).