CN213117894U

CN213117894U - Sealing flange

Info

Publication number: CN213117894U
Application number: CN202022116735.4U
Authority: CN
Inventors: 徐文娟; 潘峰; 周明献
Original assignee: Jiangyin Youplas Flange Co ltd
Current assignee: Jiangyin Youplas Flange Co ltd
Priority date: 2020-09-24
Filing date: 2020-09-24
Publication date: 2021-05-04
Anticipated expiration: 2030-09-24

Abstract

The utility model relates to a sealing flange, which comprises a flange fixing ring, a filter plate and a movable sealing element; the center of the flange fixing ring is provided with an axis connecting pipe; a circle of first connecting through holes are formed in the edge position of the flange fixing ring around the axis of the flange fixing ring; a plurality of sliding grooves are formed in the outer side wall of the axis connecting pipe at equal intervals along the axis direction of the axis connecting pipe, and the end, far away from the flange fixing ring, of the outer side wall of the axis connecting pipe; a circle of mounting ring is arranged on the inner wall of the axis connecting pipe; the movable sealing element comprises a squeezing ring and a plurality of springs; a circle of second connecting through holes are formed in the edge position of the extrusion ring along the axis of the extrusion ring; the inner wall of the extrusion ring is provided with a sliding block matched with the sliding groove, and the extrusion ring is sleeved on the axis connecting pipe in a sliding manner through the sliding block; and a rubber sealing ring is arranged on the side surface of the extrusion ring back to the flange fixing ring. The utility model discloses a sealing flange makes things convenient for the impurity of circulation medium among the filtering conduit to outside pipeline is connected to the extrusion ring fastening ground.

Description

Sealing flange

Technical Field

The utility model relates to a flange technical field, especially a sealing flange.

Background

Flanges, also called flange flanges or lugs, are parts of the interconnection between shafts for the connection between pipe ends, and also flanges at the inlet and outlet of an apparatus for the connection between two apparatuses.

The utility model discloses a chinese utility model patent that bulletin number is CN211203226U discloses a flange with seal structure, including the solid fixed ring of flange, the solid fixed ring's of flange front surface installs the axle center connecting pipe, the connecting pipe punchhole has been seted up to the centre of axle center connecting pipe, the surface movable mounting of axle center connecting pipe has the extrusion ring, the front surface fixed mounting of extrusion ring has rubber seal, the rear surface movable mounting of extrusion ring has a plurality of extrusion springs, a plurality of screw hole lantern rings are installed to the solid fixed ring's of flange internal surface screw thread, screw punchhole has been seted up to the centre of the screw hole lantern ring. The flange sealing structure can enable the flange to form a sealing structure when the flange is installed and fixed, the installation position is sealed, the sealing effect when the flange is connected is improved, the screw hole sleeve ring can be detached according to the installation requirement to replace the specification of the screw hole, and the flange can be conveniently installed and used in different occasions. However, the sealing flange has no filtering device, and the filtering and sealing function cannot be realized in special occasions requiring filtering, and the device also does not disclose how the extrusion ring is movably connected to the axial center connecting pipe under the condition of realizing sealing.

It is therefore desirable to provide a sealing flange which can solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sealing flange, which comprises a flange fixing ring, a filter plate and a movable sealing element;

an axis connecting pipe is arranged in the center of the flange fixing ring, the axis connecting pipe and the flange fixing ring are of an integrally formed structure, and the axis of the axis connecting pipe is overlapped with the axis of the flange fixing ring; a circle of first connecting through holes are formed in the edge position of the flange fixing ring around the axis of the flange fixing ring; a plurality of sliding grooves are formed in one end, far away from the flange fixing ring, of the outer side wall of the axis connecting pipe at equal intervals along the axis direction of the axis connecting pipe; a circle of mounting ring is arranged on the inner wall of the axis connecting pipe, and a threaded hole is formed in the mounting ring;

the filter plate is of a circular structure, a threaded through hole matched with a threaded hole in the mounting ring is formed in the edge position of the filter plate, and a bolt is arranged on the threaded through hole; the filter plate is fixed on the mounting ring through bolts;

the movable sealing element comprises a squeezing ring and a plurality of springs; a circle of second connecting through holes are formed in the edge position of the extrusion ring along the axis of the extrusion ring; the inner wall of the extrusion ring is provided with a sliding block matched with the sliding groove, and the extrusion ring is sleeved on the axis connecting pipe in a sliding manner through the sliding block; a rubber sealing ring is arranged on the side surface of the extrusion ring back to the flange fixing ring; the one end of a plurality of springs is fixed on the extrusion ring to the side of the flange fixing ring, the other end of the plurality of springs is fixed on the flange fixing ring, and the springs are in a compression state.

Preferably, a plurality of reinforcing ribs are arranged on the filter plate.

Preferably, the spring is a pagoda-type spring.

Preferably, the one end of keeping away from the solid fixed ring of flange on the axle center connecting pipe is equipped with the spacing ring, the internal diameter and the external diameter of spacing ring all equal with the internal diameter and the external diameter of axle center connecting pipe, the spacing ring is integrated into one piece structure with the axle center connecting pipe, the thickness of spacing ring is less than or equal to rubber seal's thickness.

The utility model relates to a sealing flange compares with prior art has following advantage:

(1) the filtering plate is detachably arranged in the axis connecting pipe, so that impurities of circulating media in the filtering pipeline can be conveniently filtered, and the extrusion ring can be tightly connected with an external pipeline under the action of the spring when the flange is installed;

(2) simple structure, simple to operate is swift.

Drawings

FIG. 1 is a schematic structural diagram of a flange fixing ring according to the present embodiment;

FIG. 2 is a schematic structural view of a filter plate according to the present embodiment;

FIG. 3 is a schematic view of the connection between the axial connection tube and the filter plate in this embodiment;

FIG. 4 is a schematic structural view of a sealing flange according to the present embodiment;

fig. 5 is an enlarged view of a portion of the squeeze ring of fig. 4.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1-5, the sealing flange of the present invention comprises a flange fixing ring 1, a filter plate 7 and a movable sealing member;

as shown in fig. 1, an axis connecting pipe 3 is arranged at the center of the flange fixing ring 1, the axis connecting pipe 3 and the flange fixing ring 1 are of an integrally formed structure, and the axis of the axis connecting pipe 3 coincides with the axis of the flange fixing ring 1; a circle of first connecting through holes 2 are formed in the edge position of the flange fixing ring 1 around the axis of the flange fixing ring 1; a plurality of sliding grooves 6 are arranged at equal intervals on one end, far away from the flange fixing ring 1, of the outer side wall of the axis connecting pipe 3 along the axis direction of the axis connecting pipe 2; a circle of mounting ring 4 is arranged on the inner wall of the axis connecting pipe 3, and a threaded hole 5 is formed in the mounting ring 4;

as shown in fig. 2, the filter plate 7 is of a circular structure, a threaded through hole 8 matched with the threaded hole 5 on the mounting ring 4 is formed in the edge of the filter plate 7, and a bolt 9 is arranged on the threaded through hole 8; as shown in fig. 3, the filter plate 7 is fixed on the mounting ring 4 through bolts 9 to realize the filtering function; preferably, in order to improve the strength of the filter plate 7, a plurality of reinforcing ribs are arranged on the filter plate 7;

as shown in 4-5, the movable sealing element comprises an extrusion ring 10 and a plurality of springs 12; a circle of second connecting through holes 11 are formed in the edge position of the extrusion ring 10 along the axis of the extrusion ring 10; the inner wall of the extrusion ring 10 is provided with a sliding block matched with the sliding groove 6, and the extrusion ring 10 is sleeved on the axis connecting pipe 3 in a sliding manner through the sliding block; a rubber sealing ring 13 is arranged on the side surface of the extrusion ring 10 back to the flange fixing ring 1; one end of each of the plurality of springs 12 is fixed on the side surface, facing the flange fixing ring 1, of the extrusion ring 10, the other end of each of the plurality of springs 12 is fixed on the flange fixing ring 1, and the springs 12 are in a compressed state; preferably, in order to further improve the compression effect of the spring 12, the spring 12 is a pagoda-shaped spring, and in the same installation space, the pagoda-shaped spring with the same volume can bear higher pressure than a common compression spring, and accordingly, more energy can be stored, and can bear higher pressure under the same deformation quantity.

Instructions for use: when the sealing flange is installed, firstly, a filter plate 7 is installed on the installation ring 4 on the axis connecting pipe 3; then, the pipe into which the external medium flows is connected through a second connecting through hole 11 on the extrusion ring 10, and the extrusion ring 10 is hermetically and tightly connected with the pipe into which the external medium flows by matching with a rubber sealing ring 13 because a spring 12 is in a compressed state; and finally, the flange fixing ring 1 is connected with a pipeline through which an external medium flows out through the first connecting through hole 2, so that installation is realized.

In this embodiment, the one end of keeping away from the solid fixed ring of flange 1 on axle center connecting pipe 3 is equipped with spacing ring 14, the internal diameter and the external diameter of spacing ring 14 all equal with the internal diameter and the external diameter of axle center connecting pipe 3, spacing ring 14 and axle center connecting pipe 3 are integrated into one piece structure, the thickness of spacing ring 14 is less than or equal to rubber seal's thickness 13, so set up, can avoid extrusion ring roll-off spout when the installation to can further improve the leakproofness behind extrusion ring and the external pipeline connection.

In the description of the present specification, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of describing the technical solutions of the present patent and for simplification of the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the present patent application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this patent application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this specification, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present specification can be understood by those of ordinary skill in the art as appropriate.

In this specification, unless explicitly stated or limited otherwise, a first feature may be "on" or "under" a second feature such that the first and second features are in direct contact, or the first and second features are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A sealing flange is characterized by comprising a flange fixing ring, a filter plate and a movable sealing element;

2. A sealing flange as claimed in claim 1, wherein said filter plate is provided with a plurality of ribs.

3. A sealing flange as claimed in claim 1, wherein said spring is a pagoda-type spring.

4. A sealing flange according to any one of claims 1 to 3, wherein a limiting ring is disposed at an end of the axial connecting pipe away from the flange fixing ring, the inner diameter and the outer diameter of the limiting ring are equal to those of the axial connecting pipe, the limiting ring and the axial connecting pipe are integrally formed, and the thickness of the limiting ring is less than or equal to that of the rubber sealing ring.