CN214197666U

CN214197666U - High leakproofness flange

Info

Publication number: CN214197666U
Application number: CN202023346496.8U
Authority: CN
Inventors: 李铭
Original assignee: Xiangshan Yinuo Metal Products Co ltd
Current assignee: Xiangshan Yinuo Metal Products Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-14
Anticipated expiration: 2030-12-31

Abstract

The application discloses high leakproofness flange, including first flange and second flange, the cooperation is provided with the flange hole on first flange and the second flange, first flange and second flange pass through bolted connection, be provided with the seal groove around the flange hole on the first flange, be provided with the sealed bulge loop of cooperation seal groove on the second flange, sealed chamber has been seted up to the seal groove bottom, be provided with flexible sealing washer in the sealed chamber, flexible sealing washer includes supporting part and deformation portion, the supporting part sets up in deformation portion both sides, sealed bulge loop top can pass sealed groove and extend sealed intracavity extrusion deformation portion, the supporting part that makes deformation portion both sides can contact sealed chamber, this flange sealing performance is strong, moreover, the steam generator is simple in structure, and convenient for installation.

Description

High leakproofness flange

Technical Field

The application relates to the technical field of flanges, in particular to a high-sealing flange.

Background

A flange, also known as a flange collar or flange. The flange is a part for connecting the shafts and is used for connecting pipe ends; there are also flanges on the inlet and outlet of the equipment for the connection between two pieces of equipment, such as reducer flanges.

However, the existing flange has the following defects: because the flange does not have a sealing structure, bolts or welding are needed to realize connection and sealing during installation, but sometimes the sealing performance of the flange is not too high due to the defects of the installation and welding processes, and the flange also needs to have good stability, so that the flange is not easy to damage after long-term use, the maintenance frequency is reduced, and a complex sealing structure cannot be designed.

Disclosure of Invention

An object of this application is to provide a sealing performance is strong, simple structure, simple to operate's high leakproofness flange.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: the utility model provides a high leakproofness flange, includes first flange and second flange, first flange with the cooperation is provided with the flange hole on the second flange, first flange with the second flange passes through bolted connection, center on the first flange the flange hole is provided with the seal groove, be provided with the cooperation on the second flange the sealed bulge loop of seal groove, sealed chamber has been seted up to the seal groove bottom, be provided with flexible sealing washer in the sealed chamber, flexible sealing washer includes supporting part and deformation portion, the supporting part set up in deformation portion both sides, sealed bulge loop top can pass the seal groove extends the extrusion in the sealed chamber deformation portion makes the supporting part of deformation portion both sides can contact sealed chamber.

As an improvement, the supporting part is filled with a supporting part, and the supporting part comprises a metal ring or a hard rubber ring.

As an improvement, the upper edge of the sealing groove is provided with guide inclined planes inclined towards two sides, and the bottom of the sealing convex ring is provided with a guide block matched with the guide inclined planes.

As an improvement, a plurality of joint blocks are arranged around the sealing convex ring, a plurality of joint grooves matched with the joint blocks are arranged around the sealing groove, and the length of each joint groove is larger than or equal to that of each joint block.

As an improvement, the top of the sealing convex ring is provided with an arc-shaped bulge, and the width of the arc-shaped bulge is not more than the width of the deformed part before deformation.

As an improvement, the width of the seal cavity is greater than the width of the seal groove.

As an improvement, a deformation cavity is formed in the deformation part.

Compared with the prior art, the beneficial effect of this application lies in: through addding seal structure in flange joint department, cooperation through sealed bulge loop and seal groove, realize the fixed to flexible sealing washer, flexible sealing washer has better stability in comparison in using mechanical structure to seal, be difficult to break down, reduce and maintain the number of times, in order to guarantee the sealed effect of flexible sealing washer, divide into supporting part and deformation portion with flexible sealing washer, extrusion through sealed bulge loop, can make deformation portion and supporting part all hug closely sealed chamber, realize the multipoint type is sealed, further increase sealing performance, reduce the assembly error of flange to the influence of flexible sealing washer sealing performance, this flexible sealing washer convenient to detach installs in addition, change after conveniently ageing, extension flange life.

Drawings

FIG. 1 is a schematic overall structure according to a preferred embodiment of the present application;

FIG. 2 is a schematic structural view before installation according to a preferred embodiment of the present application;

FIG. 3 is a schematic illustration of an installed configuration according to a preferred embodiment of the present application;

FIG. 4 is an enlarged view of the connection structure at a in FIG. 3 according to a preferred embodiment of the present application;

FIG. 5 is a perspective view of a first flange according to a preferred embodiment of the present application;

FIG. 6 is a perspective view of a second flange according to a preferred embodiment of the present application.

In the figure: 1. a first flange; 11. a sealing groove; 111. a guide slope; 112. a clamping groove; 12. sealing the cavity; 2. a second flange; 21. a sealing convex ring; 211. a guide block; 212. an arc-shaped protrusion; 213. a clamping block; 3. a flange hole; 4. a flexible sealing ring; 41. a support portion; 411. a support member; 42. a deformation section; 421. the cavity is deformed.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The present application is further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, a preferred embodiment of the present application includes a first flange 1 and a second flange 2, a flange hole 3 is cooperatively disposed on the first flange 1 and the second flange 2, the first flange 1 and the second flange 2 are connected by bolts to mount and fix a pipeline, a sealing groove 11 is disposed on the first flange 1 around the flange hole 3, a sealing convex ring 21 is disposed on the second flange 2 and is engaged with the sealing groove 11, and after the sealing convex ring 21 and the sealing groove 11 are combined, the sealing performance between the first flange 1 and the second flange 2 can be enhanced, thereby preventing leakage, and simultaneously increasing the connection strength between the first flange 1 and the second flange.

The bottom of the sealing groove 11 is provided with a sealing cavity 12, a flexible sealing ring 4 is arranged in the sealing cavity 12, the flexible sealing ring 4 comprises a supporting part 41 and a deforming part 42, the supporting part 41 is arranged at two sides of the deforming part 42, the top of the sealing convex ring 21 can penetrate through the sealing groove 11 and extend into the sealing cavity 12 to extrude the deforming part 42, so that the supporting part 41 at two sides of the deforming part 42 can contact with the sealing cavity 12, the shape of the conventional sealing strip needs to be designed to be the same as the part to be sealed, and a better sealing effect can be achieved through extrusion fit, but the sealing strip can be deformed uncontrollably in the processing process, so if the sealing strip with serious deformation is used, individual position sealing can be not in place, the flexible sealing ring 4 with the deforming part 42 and the supporting part 41 is used, the deforming part 42 and the supporting part 41 can be contacted with the sealing part through extrusion, and multi-point sealing is achieved, the overall sealing performance is improved, and the sealing performance is prevented from being influenced by disqualification of the sealing strip.

Because the supporting portion 41 needs to be expanded to two sides through the deformation of the deformation portion 42 and pushed to two sides of the sealing cavity 12, the hardness of the supporting portion 41 needs to be greater than that of the deformation portion 42 to ensure the sealing performance of the supporting portion 41, meanwhile, the structural design can better match with the extrusion of the sealing convex ring 21 to guide the sealing convex ring 21 to the deformation portion 42, the sealing effect is prevented from being reduced due to the fact that the flexible sealing ring 4 deviates when the sealing convex ring 21 is extruded, the supporting portion 41 is filled with the supporting member 411, and the supporting member 411 can be made of materials such as metal rings or hard rubber rings.

The edge is provided with the inclined plane 111 of guide to both sides slope on the seal groove 11, and sealed bulge loop 21 bottom is provided with the guide block 211 of cooperation guide inclined plane 111, through the guide of guide inclined plane 111, can be easier install second flange 2 cooperation to first flange 1 on, because the precision fit on right-angle side is higher to the machining precision requirement in addition, the design on guide inclined plane 111 can reduce the processing degree of difficulty, increases machining efficiency.

The top of the sealing convex ring 21 is provided with an arc-shaped protrusion 212, the edge of the arc-shaped protrusion 212 is smooth and can be propped against the deformation part 42, the supporting parts 41 on two sides can be more easily extruded and separated, the width of the arc-shaped protrusion 212 is not larger than the width of the deformation part 42 before deformation, and the arc-shaped protrusion 212 is ensured not to be propped against the supporting parts 41 directly, so that the deformation part 42 cannot be deformed.

The width of sealed chamber 12 is greater than the width of seal groove 11, and the joint structure can be realized to this design, and effectual fixed flexible seal circle 4 is fixed flexible seal circle 4 before connecting, makes things convenient for subsequent installation.

The deformable portion 42 is internally provided with a deformable cavity 421 to increase the deformability of the deformable portion 42 and ensure that the support portion 41 can contact the sealing cavity 12, and it should be noted that after the deformable cavity 421 is provided, the deformability of the deformable portion 42 is enhanced, but the sealing capability is correspondingly reduced, so that the height of the arc-shaped protrusion 212 needs to be increased, a larger pressure is added to the deformable portion 42, and the sealing performance is ensured.

As shown in fig. 5 to 6, the sealing convex ring 21 is provided with a plurality of clamping blocks 213 all around, the sealing groove 11 is provided with a plurality of clamping grooves 112 matching with the clamping blocks 213 all around, the length of the clamping grooves 112 is not less than that of the clamping blocks 213, so that the first flange 1 and the second flange 2 can be effectively prevented from being damaged by torsion, and meanwhile, the first flange 1 and the second flange 2 can be conveniently butted and installed.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. The utility model provides a high leakproofness flange, includes first flange and second flange, first flange with the cooperation is provided with the flange hole on the second flange, first flange with the second flange passes through bolted connection, its characterized in that: the sealing structure is characterized in that a sealing groove is formed in the first flange around the flange hole, a sealing convex ring matched with the sealing groove is arranged on the second flange, a sealing cavity is formed in the bottom of the sealing groove, a flexible sealing ring is arranged in the sealing cavity and comprises a supporting portion and a deformation portion, the supporting portion is arranged on two sides of the deformation portion, and the top of the sealing convex ring can penetrate through the sealing groove and extend to the sealing cavity to extrude the deformation portion to enable the supporting portions on two sides of the deformation portion to contact with the sealing cavity.

2. A high-sealability flange according to claim 1 wherein: the supporting part is filled with a supporting part which comprises a metal ring or a hard rubber ring.

3. A high-sealability flange according to claim 1 wherein: the upper edge of the sealing groove is provided with guide inclined planes inclined towards two sides, and the bottom of the sealing convex ring is provided with a guide block matched with the guide inclined planes.

4. A high-sealability flange according to claim 1 wherein: the sealing convex ring is provided with a plurality of joint blocks all around, the seal groove is provided with a plurality of cooperations all around the joint groove of joint block, the length more than or equal to in joint groove the length of joint block.

5. A high-sealability flange according to claim 1 wherein: the top of the sealing convex ring is provided with an arc-shaped bulge, and the width of the arc-shaped bulge is not more than the width of the deformation part before deformation.

6. A high-sealability flange according to claim 1 wherein: the width of the seal cavity is greater than the width of the seal groove.

7. A high-sealability flange according to claim 1 wherein: a deformation cavity is formed in the deformation part.