CN206439540U - A kind of flange arrangement of pipeline connection - Google Patents

Abstract

The utility model discloses a flange structure for pipeline connection, which comprises a first flange and a second flange. There is a second connecting part matched with the first connecting part, a first fixing part is arranged on the outside of the first flange, a second fixing part is arranged on the outside of the second flange, and the first fixing part The first pipe is fitted on the upper part, the second pipe is fitted on the second fixed part, the first nut is threaded on the first fixed part, the second nut is threaded on the second fixed part, and the first pipe is provided with the second nut. A first fixed sleeve with external thread matched with a nut, a second fixed sleeve with external thread matched with the second nut is provided on the second pipe, a first fixed assembly is provided on the first pipe, and the second pipe There is a second fixing component on it. The pipeline connection is convenient, the connection stability is high, the fixing is firm, there will be no rotation and loosening, and the sealing performance is high.

Description

A flange structure for pipeline connection

technical field

The utility model relates to a flange structure for pipeline connection.

Background technique

Most of the medium transported in the pipeline is fluid such as liquid or gas, and the two pipelines need to be sealed and consolidated. The existing pipeline connection usually adopts the flange connection method, but in the current flange connection structure, the flange and the pipeline Connection installation and maintenance are time-consuming and labor-intensive, and the sealing is poor, and leakage is prone to occur after long-term use.

Contents of the invention

The technical problem to be solved by the utility model is to provide a simple structure, convenient use, simple operation, convenient pipeline connection, high connection stability, low cost, convenient installation and disassembly, firm fixation, no rotation and loosening, High sealing, wide application range, long service life, safe and reliable flange structure for pipeline connection.

In order to solve the above problems, the utility model adopts the following technical solutions:

A flange structure for pipeline connection, comprising a first flange and a second flange, a first connecting portion is provided at the inner side of the first flange, and a There is a second connecting part matched with the first connecting part, a first fixing part is provided at the outer side of the first flange, and a second fixing part is arranged at the outer side of the second flange , the first fixed part is fitted with a first pipe, the second fixed part is fitted with a second pipe, and the first fixed part is provided with a first card slot matched with the first pipe, The second fixing part is provided with a second card slot matching with the second pipe, the first fixing part is threaded with a first nut, and the second fixing part is threaded with a second nut , the first pipe is provided with a first fixing sleeve with an external thread matched with the first nut, and the second pipe is provided with a second fixed sleeve with an external thread matched with the second nut. A fixing sleeve, a first fixing assembly is provided on the first pipeline, a second fixing assembly is provided on the second pipeline, and a second fixing assembly for fixing the first flange and the second flange is provided on the first flange. As for the fixing bolts of the blue plate, a sealing ring is provided at the joint between the first connecting part and the second connecting part.

As a preferred technical solution, the inner wall of the first card slot is provided with a first sealing gasket matched with the first pipe, and the inner wall of the second card slot is provided with a second sealing gasket matched with the second pipe. Pad, the outer position of the first fixed sleeve is provided with a first limiting plate arranged in an annular shape, and the outer position of the second fixed sleeve is provided with a second limiting plate arranged in an annular shape. A positioning rod is provided on the second flange, a positioning groove matching the positioning rod is provided on the first flange, and a rubber ring is provided at the matching position between the inner wall of the positioning groove and the positioning rod.

As a preferred technical solution, the first fixing assembly is composed of a first positioning ring and a second positioning ring, the first positioning ring is provided with a first mounting plate, and the second positioning ring is provided with a The second mounting plate matched with the first mounting plate, the first mounting plate is provided with the first mounting bolts for fixing the first mounting plate and the second mounting plate, the first positioning ring and the second positioning ring All are provided with a first lug plate, and the first lug plate is provided with a first positioning bolt for fixing the first lug plate and the first flange plate, and a first spring is sleeved on the first positioning bolt, so that One end of the first spring abuts against the first ear plate, and the other end abuts against the first flange, and the first positioning ring and the second positioning ring are provided with a first flexible pad on the side that cooperates with the outer wall of the first pipeline. piece.

As a preferred technical solution, the second fixing assembly is composed of a third positioning ring and a fourth positioning ring, the third positioning ring is provided with a third mounting plate, and the fourth positioning ring is provided with a The third mounting plate matches the fourth mounting plate, the third mounting plate is provided with second mounting bolts for fixing the third mounting plate and the fourth mounting plate, the third positioning ring and the fourth positioning ring Both are provided with a second ear plate, and the second ear plate is provided with a second positioning bolt for fixing the second ear plate and the second flange, and the second positioning bolt is provided with a second spring. One end of the second spring abuts against the second lug plate, and the other end abuts against the second flange, and a second flexible gasket is provided on the side of the third positioning ring and the fourth positioning ring that cooperate with the outer wall of the second pipe .

As a preferred technical solution, there are four fixing bolts, the first connecting part, the first flange and the first fixing part are integrated by one-time casting, the second connecting part, the second method The blue plate and the second fixing part are integrally formed by one-time pouring.

As a preferred technical solution, the first fixing sleeve cooperates with the first fixing part, a first sealing ring is provided at the joint between the first fixing sleeve and the first fixing part, and the second fixing sleeve and the second fixing part For cooperation, a second sealing ring is provided at the joint between the second fixing sleeve and the second fixing part.

As a preferred technical solution, there are two first positioning bolts, and the first lug plate is welded and fixed on the first fixing component.

As a preferred technical solution, there are two second positioning bolts, and the second lug plate is welded and fixed on the second fixing component.

The utility model has the beneficial effects of a flange structure for pipeline connection: simple structure, convenient use, simple operation, convenient pipeline connection, high connection stability, low cost, convenient installation and disassembly, firm fixation, and no rotation And loose phenomenon, high sealing, wide application range, long service life, safe and reliable.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is the structural representation of the flange structure that a kind of pipeline connection of the present utility model is used;

Fig. 2 is a front view of a flange structure for pipeline connection of the present invention;

Fig. 3 is an enlarged view of part A of a flange structure for pipeline connection of the present invention;

Fig. 4 is an enlarged view of part B of a flange structure for pipeline connection of the present invention.

detailed description

Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of flange structure for pipeline connection includes a first flange plate 1 and a second flange plate 2, and the position inside the first flange plate 1 is A first connection part 3 is provided at the position, a second connection part 4 matching with the first connection part 3 is provided at the inner side of the second flange 2, and a second connection part 4 matched with the first connection part 3 is provided at the position outside the first flange 1. A first fixing part 5 is provided, and a second fixing part 6 is provided at the outer position of the second flange 2, and a first pipe 7 is fitted on the first fixing part 5, and a first pipe 7 is fitted on the second fixing part 6. Fitted with a second pipe 8, the first fixing part 5 is provided with a first card slot 9 matching with the first pipe 7, and the second fixing part 6 is provided with a The matched second card slot 10, the first nut 11 is threaded on the first fixing part 5, the second nut 12 is threaded on the second fixing part 6, and the first pipe 7 is provided with A first fixed sleeve 13 with external threads matched with the first nut 11, a second fixed sleeve 14 with external threads matched with the second nut 12 is provided on the second pipe 8, so A first fixing assembly 15 is provided on the first pipeline 7, a second fixing assembly 16 is provided on the second pipeline 8, and a second fixing assembly 16 is provided on the first flange 1 for fixing the first flange 1 and the second flange 1. The fixing bolts 17 of the two flanges 2 are provided with a sealing ring 18 at the joint between the first connecting part 3 and the second connecting part 4 .

In a preferred embodiment of the present utility model, the inner wall of the first card slot 9 is provided with a first gasket 19 matching the first pipe 7, and the inner wall of the second card slot 10 is provided with a The second sealing gasket (not shown) matched with the second pipe 8, the position outside the first fixed sleeve 13 is provided with a first limiting plate 20 arranged in an annular shape, and the outer side of the second fixed sleeve 14 The position is provided with a second limiting plate 21 arranged in an annular shape, the second flange 2 is provided with a positioning rod 22, and the first flange 1 is provided with a position corresponding to the positioning rod 22. Cooperating with the positioning groove 23, a rubber ring 24 is provided at the position where the inner wall of the positioning groove 23 cooperates with the positioning rod 22.

In a preferred embodiment of the present utility model, the first fixing assembly 15 is composed of a first positioning ring 25 and a second positioning ring 26, the first positioning ring 25 is provided with a first mounting plate 27, the The second positioning ring 26 is provided with a second mounting plate 28 matched with the first mounting plate 27, and the first mounting plate 27 is provided with a first mounting plate 27 and a second mounting plate 28 for fixing the first mounting plate 28. A mounting bolt 29, the first locating ring 25 and the second locating ring 26 are provided with a first lug 30, and the first lug 30 is provided for fixing the first lug 30 and the first flange The first positioning bolt 31 of the disk 1, the first positioning bolt 31 is covered with a first spring 32, one end of the first spring 32 is against the first ear plate 30, and the other end is against the first flange 1 A first flexible gasket 33 is provided on the side of the first positioning ring 25 and the second positioning ring 26 that cooperate with the outer wall of the first pipe 7 .

In a preferred embodiment of the present utility model, the second fixing assembly 16 is composed of a third positioning ring 41 and a fourth positioning ring 42, the third positioning ring 41 is provided with a third mounting plate 43, the The fourth positioning ring 42 is provided with a fourth mounting plate matched with the third mounting plate 44, and the third mounting plate 43 is provided with a second mounting plate for fixing the third mounting plate 43 and the fourth mounting plate 44. The bolt 45 is installed, and the third positioning ring 41 and the fourth positioning ring 42 are provided with a second lug 46, and the second lug 46 is provided with a second lug 46 and a second flange for fixing the second lug 46. 2 of the second positioning bolt 47, the second positioning bolt 47 is provided with a second spring 48, one end of the second spring 48 is against the second ear plate 46, and the other end is against the second flange 2, so A second flexible gasket 110 is provided on the side of the third positioning ring 41 and the fourth positioning ring 42 that cooperate with the outer wall of the second pipe 8 .

In a preferred embodiment of the present utility model, four fixing bolts 17 are provided, and the first connecting part 3, the first flange 1 and the first fixing part 5 are integrally formed by one-time casting. The second connecting part 4, the second flange plate 2 and the second fixing part 6 are integrally formed by one-time casting.

In a preferred embodiment of the present utility model, the first fixing sleeve 13 cooperates with the first fixing part 5, and a first sealing ring 51 is provided at the matching place between the first fixing sleeve 13 and the first fixing part 5, so that The second fixing sleeve 14 is matched with the second fixing portion 6 , and a second sealing ring 52 is provided at the joint between the second fixing sleeve 14 and the second fixing portion 6 .

In a preferred embodiment of the present utility model, there are two first positioning bolts 31 , and the first ear plate 30 is welded and fixed on the first fixing component 15 .

In a preferred embodiment of the present invention, there are two second positioning bolts 47 , and the second lug plate 46 is welded and fixed on the second fixing component 16 .

Further, the inner wall of the first card slot is provided with a first gasket matching the first pipe, and the inner wall of the second card slot is provided with a second gasket matching the second pipe, so The outer position of the first fixed sleeve is provided with a first limiting plate arranged in an annular shape, and the outer position of the second fixed sleeve is provided with a second limiting plate arranged in an annular shape. A positioning rod is provided on the blue plate, and a positioning groove matched with the positioning rod is provided on the first flange, and a rubber ring is provided at the matching place between the inner wall of the positioning groove and the positioning rod. The sealing pad and the second sealing pad increase the sealing performance of the first pipe fitting with the first slot and the sealing performance of the second pipe fitting with the second slot, through the set first limiting plate and the second The limit plate can prevent the first nut from being threaded with the first fixing sleeve and the second nut from the second fixing sleeve when the thread fits overtravel, which will affect the first pipe, the first fixing part and the second fixing part. The connection strength between the pipe and the second fixed part is set by the positioning rod and the positioning groove, which can prevent the first flange and the second flange from being fixed by the fixing bolts to generate circumferential rotation force and affect the first flange. The connection strength of the flange and the second flange.

Further, the first fixing sleeve cooperates with the first fixing part, a first sealing ring is provided at the joint between the first fixing sleeve and the first fixing part, and the second fixing sleeve cooperates with the second fixing part, so A second sealing ring is provided at the joint between the second fixing sleeve and the second fixing part. Through the first sealing ring and the second sealing ring, the connection between the first fixing sleeve and the first fixing part and the second fixing sleeve is increased. Sealing performance when mated with the second fixed part.

A flange structure for pipeline connection of the utility model has the following advantages: when in use, insert one end of the first pipeline into the first fixing part, and cooperate with the first clamping groove provided in the first fixing part to connect the second pipeline Insert it into the second fixing part and cooperate with the second slot provided in the second fixing part. At this time, by rotating the first nut and the second nut, the first nut is matched with the first fixing sleeve, and the second nut is matched with the second nut. The two fixing sleeves cooperate to achieve the purpose of fixing the first pipe, the flange and the second pipe. The cooperation between the plate and the second positioning bolt increases the connection strength between the first pipe and the second pipe when they are connected to the flange, and prevents the first pipe and the second pipe from falling off or rotating. part and the second connecting part, and the fixing bolts for fixing the first flange and the second flange are arranged on the first flange, which increases the connection between the first flange and the second flange Strength, and facilitate the installation and disassembly of this flange structure when connecting pipes, by setting the first sealing gasket on the inner wall of the first card slot, setting the second sealing gasket on the inner wall of the second card slot and connecting the first connecting part with the second There is a sealing ring at the joint of the two connecting parts, which increases the tightness of the first pipe and the first fixed part, the second pipe and the second fixed part, and the first connecting part and the second connecting part. Sealing, so as to avoid leakage when conveying medium, and through the first spring and the second spring, the first ear plate and the first flange are fixed by the first positioning bolt and the second ear plate and the When the second flange is fixed by the second positioning bolts, internal stress concentration and thermal expansion and contraction occur, which increases the scalability of the flange structure during connection. Its structure is simple, easy to use, easy to operate, easy to connect pipes, high connection stability, low cost, convenient installation and disassembly, firm fixation, no rotation and loosening, high sealing performance, wide application range and long service life , has a safe and reliable effect.

The above is only a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any change or replacement that is not thought of through creative work should be covered within the scope of protection of the utility model . Therefore, the protection scope of the present utility model should be determined by the protection scope defined in the claims.

Claims (8)

1. a kind of flange arrangement of pipeline connection, it is characterised in that：Including first flange disk and second flange disk, described first First connecting portion is provided with ring flange inner side, the second flange Pan Neiceweizhichu is provided with and the first connecting portion phase The second connecting portion of cooperation, the first flange Pan Waiceweizhichu is provided with position on the outside of the first fixed part, the second flange disk Put to locate to be provided with to be combined with the first pipeline, second fixed part on the second fixed part, first fixed part and be combined with second Pipeline, first fixed part is provided with the first neck being engaged with first pipeline, and second fixed part is provided with Screw thread is combined with the first nut on the second neck being engaged with the second pipe, first fixed part, and described second consolidates Determine screw thread in portion and be combined with the second nut, first pipeline is provided with the band being engaged with first nut externally threaded the One fixed cover, the second pipe is provided with externally threaded second fixed cover of band that is engaged with second nut, and described the One pipeline is provided with the first fixation kit, and the second pipe is provided with the second fixation kit, and the first flange disk is provided with Fixing bolt for fixing first flange disk and second flange disk, the first connecting portion at second connecting portion cooperation with being provided with Sealing ring.

2. the flange arrangement of pipeline connection according to claim 1, it is characterised in that：The first neck inwall is provided with The first sealing gasket being engaged with first pipeline, the second neck inwall is provided with the be engaged with the second pipe It is provided with two sealing gaskets, the first fixed cover outer fix in circular the first limiting plate set, second fixed cover It is provided with outer fix in circular the second limiting plate set, the second flange disk is provided with locating rod, first method Blue disk is provided with the locating slot being engaged with the locating rod, and the locating slot inwall is with being provided with rubber ring at locating rod cooperation.

3. the flange arrangement of pipeline connection according to claim 1, it is characterised in that：First fixation kit is by One locating ring and the second locating ring composition, first locating ring are provided with the first installing plate, and second locating ring is provided with The second installing plate being engaged with first installing plate, first installing plate, which is provided with, to be used to fix the first installing plate and the The first otic placode, first ear are equipped with first installation bolt of two installing plates, first locating ring and the second locating ring Plate, which is provided with to be used to fix, is arranged with the on the first bolt of the first otic placode and first flange disk, first bolt One spring, first spring one end offsets with the first otic placode, and the other end offsets with first flange disk, first locating ring and The first flexible gasket is equipped with the side that second locating ring and the first pipeline outer wall coordinate.

4. the flange arrangement of pipeline connection according to claim 1, it is characterised in that：Second fixation kit is by Three locating rings and the 4th locating ring composition, the 3rd locating ring are provided with the 3rd installing plate, and the 4th locating ring is provided with The 4th installing plate being engaged with the 3rd installing plate, the 3rd installing plate, which is provided with, to be used to fix the 3rd installing plate and the The second otic placode, second ear are equipped with second installation bolt of four installing plates, the 3rd locating ring and the 4th locating ring Plate is provided with the second bolt for being used for fixing the second otic placode and second flange disk, and second bolt is provided with second Spring, described second spring one end offsets with the second otic placode, and the other end offsets with second flange disk, the 3rd locating ring and The second flexible gasket is equipped with the side that four locating rings coordinate with second pipe outer wall.

5. the flange arrangement of pipeline connection according to claim 1, it is characterised in that：The fixing bolt is provided with four Individual, the first connecting portion, first flange disk and the first fixed part are integral by the way of once-cast, and described second connects Socket part, second flange disk and the second fixed part are integral by the way of once-cast.

6. the flange arrangement of pipeline connection according to claim 1, it is characterised in that：First fixed cover and first Fixed part coordinates, provided with the first sealing ring at first fixed cover and the first fixed part cooperation, second fixed cover and the Two fixed parts coordinate, and the second sealing ring is provided with second fixed cover and the second fixed part cooperation.

7. the flange arrangement of pipeline connection according to claim 3, it is characterised in that：First bolt is provided with Two, first otic placode is weldingly fixed on the first fixation kit.

8. the flange arrangement of pipeline connection according to claim 4, it is characterised in that：Second bolt is provided with Two, second otic placode is weldingly fixed on the second fixation kit.