CN213332926U

CN213332926U - Plate type flat welding flange

Info

Publication number: CN213332926U
Application number: CN202022007768.5U
Authority: CN
Inventors: 经伟
Original assignee: Nanjing Tianhong Machinery Co ltd
Current assignee: Nanjing Tianhong Machinery Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-06-01
Anticipated expiration: 2030-09-15

Abstract

The utility model discloses a plate type flat welding flange relates to flange technical field, and the pipeline inserts the end and can not be at the flange internal fixation for solving among the prior art when the pipeline inserts the flange in the welding, the problem of the easy damage that takes place of long-term use back welding department. The utility model discloses a welding method, including first flange, first pipeline, fixed ring, annular, the inside-mounting of first flange has solid fixed ring, and first flange and weld ring welded connection, one side of first flange is provided with first pipeline, and first pipeline and weld ring welded connection, the internally mounted of first flange has solid fixed ring, and first flange and solid fixed ring welded connection, one side of solid fixed ring is provided with the annular, the inside of annular is provided with rubber backing ring, and rubber backing ring and solid fixed ring pass through glue fixed connection, one side of second flange is provided with the second pipeline, and second pipeline and weld ring welded connection.

Description

Plate type flat welding flange

Technical Field

The utility model relates to a flange technical field specifically is a plate type flat welding flange.

Background

The flange is a part for connecting pipes, is used for connecting pipe ends, is also used for connecting an inlet and an outlet of equipment, is used for connecting two pieces of equipment, such as a speed reducer flange, and is widely used for basic engineering such as chemical engineering, building, water supply, drainage, petroleum, light and heavy industries, refrigeration, sanitation, water heating, fire fighting, electric power, aerospace, shipbuilding and the like due to the excellent characteristics of convenient material taking, low cost, simple manufacture and the like.

The pipeline can not be fixed in the currently and commonly used plate type flat welding flange, after the pipeline is inserted into the flange and welded, the pipeline and the flange have a small inclination angle, and the welded part of the pipeline and the flange is easy to damage after long-term use; therefore, the market urgently needs to develop a plate type flat welding flange to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a plate type flat welding flange to what put forward among the above-mentioned background art is solved and when the pipeline inserted the welding in the flange the pipeline insert the end can not be at the flange internal fixation, the problem of the easy damage that takes place of long-term back welding department of using.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a plate type flat welding flange, includes first flange and second flange, the solder ring is installed to one side of first flange, and first flange and solder ring welded connection, one side of first flange is provided with first pipeline, and first pipeline and solder ring welded connection, the internally mounted of first flange has solid fixed ring, and first flange and solid fixed ring welded connection, one side of solid fixed ring is provided with the annular, the inside of annular is provided with the rubber backing ring, and the rubber backing ring passes through glue fixed connection with solid fixed ring, one side of second flange is provided with the second pipeline, and second pipeline and solder ring welded connection.

Preferably, first bulge loop is installed to one side of first flange, and first flange and first bulge loop welded connection, the second bulge loop is installed to one side of solid fixed ring, and solid fixed ring and second bulge loop welded connection.

Preferably, one side of the first flange is provided with a molding groove, and one side of the first flange is provided with a connecting gasket.

Preferably, the inside of first flange is provided with the flange inner chamber, the inside of first flange is provided with the bolt hole.

Preferably, fixing bolt is installed to one side of first flange, and first flange and fixing bolt threaded connection, one side of fixing bolt is provided with the iron packing ring, the iron packing ring sets up in one side of first flange.

Preferably, a fixing nut is installed on the outer side of the fixing bolt, the fixing bolt is in threaded connection with the fixing nut, a rubber gasket is arranged on one side of the fixing nut, and the rubber gasket is arranged on one side of the second flange.

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

1. the utility model discloses a through solid fixed ring's setting, when the pipeline inserts in the board-like flat-weld flange, the pipeline inserts the end and can fix in solid fixed ring's recess, and it is inseparabler to make the pipeline insert the end and solid fixed ring's contact through the rubber backing ring effect, and is fixed more stable, and then the welding of pipeline and board-like flat-weld flange will be more steady, makes the welding department not fragile, has increased the security of junction.

2. The utility model discloses a through the setting of first bulge loop, second bulge loop and molding recess, when two flanges were fixed, first bulge loop and second bulge loop made the fixed connection that liner and flange can be better, had increased the stability of liner, the setting of molding recess, in the liner atress warp can impress molding recess, the area of contact who makes liner and flange strengthened, had increased the leakproofness of liner and flange.

Drawings

FIG. 1 is a schematic connection diagram of a plate type flat welding flange according to the present invention;

fig. 2 is a cross-sectional view of the connection between the first flange and the second flange of the present invention;

fig. 3 is a front view of a first flange of the present invention;

fig. 4 is a rear view of the first flange of the present invention.

In the figure: 1. a first conduit; 2. a first flange; 3. a second flange; 4. fixing the bolt; 5. welding a ring; 6. a second conduit; 7. an iron washer; 8. a first convex ring; 9. a rubber washer; 10. fixing a nut; 11. a rubber backing ring; 12. a ring groove; 13. a fixing ring; 14. an inner cavity of the flange; 15. a connection pad; 16. a second convex ring; 17. bolt holes; 18. and (5) molding a groove.

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.

Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a plate type flat welding flange, including first flange 2 and second flange 3, weld ring 5 is installed to one side of first flange 2, and first flange 2 and weld ring 5 welded connection, one side of first flange 2 is provided with first pipeline 1, and first pipeline 1 and weld ring 5 welded connection, the internally mounted of first flange 2 has solid fixed ring 13, and first flange 2 and solid fixed ring 13 welded connection, one side of solid fixed ring 13 is provided with annular 12, the inside of annular 12 is provided with rubber backing ring 11, and rubber backing ring 11 passes through glue fixed connection with solid fixed ring 13, one side of second flange 3 is provided with second pipeline 6, and second pipeline 6 and weld ring 5 welded connection.

Further, first bulge loop 8 is installed to one side of first flange 2, and first flange 2 and first bulge loop 8 welded connection, and second bulge loop 16 is installed to one side of solid fixed ring 13, and solid fixed ring 13 and second bulge loop 16 welded connection, and first bulge loop 8 is the same with second bulge loop 16 shape size, and the annular 12 width of solid fixed ring 13 one side will be greater than the thickness of pipeline.

Further, one side of the first flange 2 is provided with a molding groove 18, one side of the first flange 2 is provided with a connecting gasket 15, the number of the molding grooves 18 is 12, the depth of the molding groove 18 cannot exceed the thickness of the first flange 2, and half of the thickness of the connecting gasket 15 exceeds the protruding length of the first convex ring 8 and the second convex ring 16.

Further, the inside of the first flange 2 is provided with a flange inner cavity 14, the inside of the first flange 2 is provided with bolt holes 17, the distance from the bolt holes 17 to the outside of the first flange 2 is larger than the width of the first convex ring 8, the inside of the connection gasket 15 is provided with a plurality of bolt holes 17, and the positions of the bolt holes 17 are aligned with the bolt holes 17 inside the first flange 2.

Further, fixing bolt 4 is installed to one side of first flange 2, and

first flange

2 and 4 threaded connection of fixing bolt, and one side of fixing bolt 4 is provided with iron packing ring 7, and iron packing ring 7 sets up in one side of first flange 2, and iron packing ring 7 plays the cushioning effect, can adopt the steel that toughness is good to make, and fixing bolt 4 plays the connection fastening effect, needs to adopt the steel that intensity is high to make.

Further, a fixing nut 10 is installed on the outer side of the fixing bolt 4, the fixing bolt 4 is in threaded connection with the fixing nut 10, a rubber washer 9 is arranged on one side of the fixing nut 10, the rubber washer 9 is arranged on one side of the second flange 3, and the fixing nut 10 is made of steel with high strength, so that slipping is prevented when the fixing bolt 4 is fastened.

The working principle is as follows: when the pipeline connecting device is used, the first pipeline 1 is inserted into the first flange 2, the insertion end of the first pipeline 1 is tightly attached to the rubber cushion ring 11 in the ring groove 12, the insertion end of the first pipeline 1 is fixed, then the first pipeline 1 and the welding ring 5 are welded, the first pipeline 1 is fixedly connected with the first flange 2, the connecting gasket 15 is placed between the first convex ring 8 and the second convex ring 16, the bolt hole 17 in the connecting gasket 15 is adjusted, the position of the bolt hole 17 is aligned with the bolt hole 17 in the first flange 2, the second flange 3 is placed on the other side of the connecting gasket 15, the positions of the bolt holes 17 in the second flange 3 and the connecting gasket 15 are also aligned, the fixing bolt 4 is sleeved with the iron washer 7, then the iron washer 7 is inserted into the bolt hole 17 from one side of the first flange 2 and extends out from one side of the second flange 3, the rubber washer 9 is sleeved on the side where the fixing bolt 4 extends out, and screwing the fixing nut 10 and screwing, inserting the second pipeline 6 into the second flange 3, enabling the insertion end of the second pipeline 6 to be tightly attached to a rubber cushion ring 11 in an inner ring groove 12 of the second flange 3, enabling the insertion end of the second pipeline 6 to be fixed, and then welding the second flange 3 and the welding ring 5 on one side of the second flange 3.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A plate type flat welding flange comprises a first flange (2) and a second flange (3), and is characterized in that: welding ring (5) are installed to one side of first flange (2), and first flange (2) and welding ring (5) welded connection, one side of first flange (2) is provided with first pipeline (1), and first pipeline (1) and welding ring (5) welded connection, the internally mounted of first flange (2) has solid fixed ring (13), and first flange (2) and solid fixed ring (13) welded connection, one side of solid fixed ring (13) is provided with annular (12), the inside of annular (12) is provided with rubber backing ring (11), and rubber backing ring (11) and solid fixed ring (13) pass through glue fixed connection, one side of second flange (3) is provided with second pipeline (6), and second pipeline (6) and welding ring (5) welded connection.

2. A plate type flat welded flange according to claim 1, characterized in that: first bulge loop (8) are installed to one side of first flange (2), and first flange (2) and first bulge loop (8) welded connection, second bulge loop (16) are installed to one side of solid fixed ring (13), and solid fixed ring (13) and second bulge loop (16) welded connection.

3. A plate type flat welded flange according to claim 1, characterized in that: one side of the first flange (2) is provided with a modeling groove (18), and one side of the first flange (2) is provided with a connecting gasket (15).

4. A plate type flat welded flange according to claim 1, characterized in that: the flange inner cavity (14) is arranged inside the first flange (2), and bolt holes (17) are formed inside the first flange (2).

5. A plate type flat welded flange according to claim 1, characterized in that: fixing bolt (4) are installed to one side of first flange (2), and first flange (2) and fixing bolt (4) threaded connection, one side of fixing bolt (4) is provided with iron packing ring (7), iron packing ring (7) set up in one side of first flange (2).

6. A plate type flat welding flange according to claim 5, characterized in that: fixing nut (10) are installed in the outside of fixing bolt (4), and fixing bolt (4) and fixing nut (10) threaded connection, one side of fixing nut (10) is provided with rubber packing ring (9), rubber packing ring (9) set up in one side of second flange (3).