CN115854145A

CN115854145A - Rotatable pipeline connecting flange structure

Info

Publication number: CN115854145A
Application number: CN202211682355.4A
Authority: CN
Inventors: 姬凯
Original assignee: Haikou Yige Electronic Technology Co ltd
Current assignee: Haikou Yige Electronic Technology Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-03-28

Abstract

The invention relates to the technical field of flanges, in particular to a rotatable pipeline connecting flange structure which comprises a first flange plate and a second flange plate, wherein a sealing groove is formed in the inner wall of the first flange plate, eight connecting guide rods are welded to the inner wall of the sealing groove, every two connecting guide rods are in one group, and four groups of connecting guide rods are circumferentially distributed on the inner wall of the sealing groove at equal intervals. When the connection part of the first flange and the second flange is impacted, the impact force can impact one or more sealing sliding blocks firstly, and all the sealing sliding blocks can be contracted inwards under the action of the engagement transmission action of the first engaging gear and the second engaging gear by the connection of the limiting sliding rod and the linkage sliding rod and the free movement of the sliding column in the T-shaped groove, so that the sealing gasket is integrally stressed to be contracted towards the inside of a pipeline, the whole connection part is more compact, and the sealing gasket always fills a sealing gap between pipelines under the extrusion of the sealing sliding blocks, thereby avoiding the leakage of the pipeline.

Description

Rotatable pipeline connecting flange structure

Technical Field

The invention belongs to the technical field of flanges, and particularly relates to a rotatable pipeline connecting flange structure.

Background

In the building construction or industrial production process, the condition that the pipeline needs to be connected is often met, the flange has the characteristics of convenience in use and capability of bearing larger pressure, the flange is widely used, the flange can be formed by casting or formed by threaded connection or welding, the existing flange connection is composed of a pair of flanges, a gasket and a plurality of bolts, certain pipe fittings and equipment are provided with the flanges, and the flange connection also belongs to flange connection, and is an important connection mode for pipeline construction.

When the flange in the existing market is used, a gasket is placed between two flange plates, then the gasket is fastened by a plurality of groups of bolts, and a sealing gap is filled by the extrusion deformation of the gasket so as to achieve the effect of connecting and sealing pipelines. This kind of mode of using multiunit bolt-up not only wastes time and energy and be not convenient for dismantle, the bolt is difficult to appear not hard up simultaneously, when the flange receives the impact of outside high strength, when the material property of flange itself can't last to bear, the gap can appear in its inside connecting piece, especially under building trade backgrounds such as beating ground or mass transport concrete, the external force transportation that the pipe connection itself received or when wholly receiving certain impact, all can influence the leakproofness of the pipeline that the flange is connected, lead to the connecting tube even the possibility that the leakage appears.

Disclosure of Invention

The present invention is directed to a rotatable pipe coupling flange structure, which solves the above problems of the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the device comprises a first flange plate and a second flange plate, wherein a sealing groove is formed in the inner wall of the first flange plate, eight connecting guide rods are welded on the inner wall of the sealing groove, every two connecting guide rods are in a group, four connecting guide rods are distributed on the inner wall of the sealing groove in an equidistant circumferential manner, a sliding rod floating connecting piece is movably sleeved at the top of one connecting guide rod, a second spring is arranged between the sliding rod floating connecting piece and the inner wall of the sealing groove, the spring is sleeved outside the connecting guide rods, a starting rod is bonded on the outer wall of the top of the sliding rod floating connecting piece, sliding rod connecting pieces are bonded and fixed on the tops of the other three connecting guide rods, a limiting mechanism is arranged on the inner wall of the sliding rod floating connecting piece, a compact mechanism is arranged on the inner wall of each sliding rod connecting piece, and four sliding block guide rods are welded on the inner wall of the sealing groove, and four slider guide arms are equidistant circumference and distribute at the inner wall of seal groove, every sliding connection has a sealing slide on the slider guide arm, and T type groove has all been seted up to every sealing slide's periphery wall, the inside of ring flange two is provided with slewing mechanism, the periphery wall of ring flange two is provided with two movable handle mechanisms, stop gear includes two linkage gear one and two spacing slide bars, two spacing slide bar all rotates through the bearing and connects the inner wall at the unsteady even piece of slide bar, two spacing slide bar and two linkage gear one-to-one, two linkage gear one bonds and fixes on the spacing slide bar that corresponds, and two linkage gear one meshes mutually, every the welding of one side outer wall of spacing slide bar has spacing trip, every the one end activity of spacing slide bar is pegged graft and is had the traveller.

Preferably, the compact mechanism comprises two linkage gears II and two linkage slide bars, the two linkage gears II correspond to the two linkage slide bars one by one, the two linkage gears II are fixedly bonded on the corresponding linkage slide bars, the two linkage slide bars are rotatably connected to the inner wall of the slide bar connecting piece through bearings, the two linkage gears II are meshed with each other, and one end of each linkage slide bar is movably inserted with a slide column.

Preferably, the rotating mechanism comprises a second connecting pipe, a central gear and a large bearing, the second connecting pipe is fixedly inserted into a shaft hole of the central gear, the second connecting pipe is fixedly inserted into an inner ring of the large bearing, an inner groove is formed in the second flange, the outer ring wall of the large bearing is fixedly bonded with the inner groove wall, a transmission gear is rotatably connected to the outer wall of one side of the second flange through a rotating shaft, the transmission gear is meshed with the central gear, a gear ring is welded to the inner wall of the second flange, and the gear ring is meshed with the transmission gear.

Preferably, the movable handle mechanism comprises two handle columns and two handle grooves, each handle column corresponds to one handle groove, each handle column is rotatably connected into the corresponding handle groove through a rotating shaft, and the two handle grooves are symmetrically formed in the peripheral wall of the second flange plate.

Preferably, a first connecting pipe is fixedly connected to the center of the first flange in an inserting mode, the first connecting pipe penetrates through the first flange and extends to the inside of the sealing groove, an external thread is arranged at one end of the first connecting pipe, and two handle clamping grooves are symmetrically formed in the peripheral wall of the first flange.

Preferably, a sealing gasket is installed in the sealing groove, and the section of the sealing gasket is T-shaped.

Preferably, the sealing slide block is provided with a through sliding hole, the whole sealing slide block is in a circular arc plate shape, and each sliding column is connected to the inside of the T-shaped groove in a sliding mode.

Preferably, the outside of the second connecting pipe is integrally provided with a boss and an internal thread, and the internal thread of the second connecting pipe is matched with the external thread of the first connecting pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. when the connection part of the flange I and the flange II is impacted, the impact force can impact one or more sealing sliding blocks firstly, and all the sealing sliding blocks are contracted inwards under the matching of the meshing transmission action of the linkage gear I and the linkage gear II through the connection of the limiting sliding rod and the linkage sliding rod and the free movement of the sliding column in the T-shaped groove, so that the whole sealing gasket is stressed to be contracted towards the inside of a pipeline, the whole connection part is more compact, the further fixed sealing effect of the flange structure is realized, after the pipeline is connected, the sealing sliding blocks are synchronously extruded towards the sealing gasket under the action of a compact mechanism under the external impact, and the sealing gasket is always filled in the sealing gap between the pipelines under the extrusion of the sealing sliding blocks, thereby avoiding the pipeline leakage.

2. Under slewing mechanism's transmission, behind the screw-thread fit was accomplished to connecting pipe one and connecting pipe two, the boss can be to the interior extrusion of ring flange two, thereby promote the actuating lever and make the whole of the unsteady even piece of slide bar move down and make spacing trip no longer restrict spacing slide bar, all sealed sliders are in this moment and treat the impact condition to the proruption impact situation after corresponding flange one and flange two are connected, also make equally have better protection mechanism before the installation, prevent that inside compact mechanism from working in advance.

3. Through the slewing mechanism who sets up for connecting pipe two and flange dish two can rotate relatively, at the in-process of installation, only need rotate flange dish two, under slewing mechanism's effect, connecting pipe two is also along with the fast rotation, and make connecting pipe one and connecting pipe two accomplish screw-thread fit, thereby accomplish the quick installation of flange, not only improved the installation effectiveness, also convenient to detach.

4. Through the movable handle mechanism who sets up for second ring flange rotates more conveniently, and makes the handle post correspond through the pivoted mode and accomodate, and can carry on spacingly to the fixed first ring flange that finishes and second ring flange, has reduced the complexity of the whole appearance of flange, and the reduction space occupies, has improved the installation effectiveness.

In summary, the following steps: according to the pipeline connecting flange structure, the installation or the disassembly is not required to be carried out in a multi-group bolt fastening mode, the complex problem caused by the use of a plurality of groups of bolts is avoided, when external high strength is applied, and the pipeline is transported or vibrated in an installation site, the sealing gasket can be further tightly attached to the connecting part when the pipeline connecting flange structure after the installation is subjected to external force, the situation that the leakage occurs due to gaps at the connecting part is ensured, and the situation that the leakage occurs when the pipeline is connected and the external force is transported or the whole pipeline is subjected to certain impact is effectively avoided.

Drawings

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a perspective view of the spacing mechanism and compact mechanism of the present invention;

FIG. 3 is a schematic plan view of the invention in general cross section;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a schematic cross-sectional perspective view of a first flange of the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 5;

FIG. 7 is a schematic sectional front view of a first flange of the present invention;

FIG. 8 is an enlarged view of the structure at C in FIG. 7;

FIG. 9 is a perspective view of the present invention with the overall structure separated;

FIG. 10 is a perspective view of the seal slide of the present invention;

FIG. 11 is a perspective view of the spacing mechanism of the present invention;

fig. 12 is an exploded view of the second flange of the present invention.

In the figure: 1. a first flange plate; 12. a first connecting pipe; 13. a handle slot; 14. a sealing groove; 15. a slide bar connecting piece; 2. a second flange plate; 21. a second connecting pipe; 211. a boss; 23. a handle slot; 24. an inner tank; 4. a handle post; 5. a ring gear; 6. a transmission gear; 7. a sun gear; 8. a slider guide; 9. a large bearing; 16. sealing the sliding block; 161. a slide hole; 162. a T-shaped groove; 17. sealing gaskets; 18. the slide bar is connected with the sliding piece in a floating way; 181. an actuating lever; 19. a limiting slide bar; 191. a limiting clamping hook; 92. a traveler; 20. linking the slide bars; 26. a second spring; 27. a connecting guide rod; 281. a first linkage gear; 282. and a second linkage gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 12, the present invention provides a technical solution: the sealing device comprises a first flange plate 1 and a second flange plate 2, wherein a sealing groove 14 is formed in the inner wall of the first flange plate 1, eight connecting guide rods 27 are welded on the inner wall of the sealing groove 14, every two connecting guide rods 27 form a group, four connecting guide rods 27 are distributed on the inner wall of the sealing groove 14 in an equidistant circumferential manner, a sliding rod floating connecting piece 18 is movably sleeved at the top of the connecting guide rod 27, a second spring 26 is arranged between the sliding rod floating connecting piece 18 and the inner wall of the sealing groove 14, the second spring 26 is sleeved outside the connecting guide rods 27, a starting rod 181 is bonded on the outer wall of the top of the sliding rod floating connecting piece 18, sliding rod connecting pieces 15 are bonded and fixed on the tops of the other three connecting guide rods 27, a limiting mechanism is arranged on the inner wall of the sliding rod floating connecting piece 18, a compact mechanism is arranged on the inner wall of each sliding rod connecting piece 15, four sliding block guide rods 8 are welded on the inner wall of the sealing groove 14, and the four sliding block guide rods 8 are distributed on the inner wall of the sealing groove 14 in an equidistant circumferential manner, each slide block guide rod 8 is connected with a seal slide block 16 in a sliding way, the peripheral wall of each seal slide block 16 is provided with a T-shaped groove 162, the inside of a flange plate 2 is provided with a rotating mechanism, the peripheral wall of the flange plate 2 is provided with two movable handle mechanisms, each limiting mechanism comprises two linkage gears 281 and two limiting slide rods 19, the two limiting slide rods 19 are rotatably connected with the inner wall of the slide rod floating connecting piece 18 through bearings, the two limiting slide rods 19 are in one-to-one correspondence with the two linkage gears 281, the two linkage gears 281 are fixedly bonded on the corresponding limiting slide rods 19 and are meshed with the two linkage gears 281, one side outer wall of each limiting slide rod 19 is welded with a limiting clamping hook 191, one end of each limiting slide rod 19 is movably inserted with a slide column 92, the limiting slide rods 19 can rotate around the slide column 92 under the action of a spring II 26, make the slider unsteady even 18 drive two spacing slide bars 19 and laminate T type groove 162 all the time, thereby every spacing trip 191 can catch on with the adjacent sealed slider 16 of the spacing slide bar 19 of place, and with its restriction in initial position, through promoting actuating lever 181, can make slider unsteady even 18 slide along corresponding even guide arm 27, thereby it slides to drive spacing slide bar 19 and be located the place T type groove 162, and then make sealed slider 16 break away from spacing trip 191, sealed slider 16 alright slide along slider guide arm 8 this moment.

The eight link guides 27 described above are further explained: two connecting guide rods 27 movably inserted in the slide rod floating connecting piece 18 form a group, and two connecting guide rods 27 fixed on the slide rod connecting piece 15 in an adhering manner form a group.

Specifically, the compact mechanism comprises two linkage gears two 282 and two linkage slide bars 20, the two linkage gears two 282 and the two linkage slide bars 20 are in one-to-one correspondence, the two linkage gears two 282 are fixedly bonded on the corresponding linkage slide bars 20, the two linkage slide bars 20 are both rotatably connected to the inner wall of the slide bar connecting piece 15 through bearings, the two linkage gears two 282 are meshed with each other, one end of each linkage slide bar 20 is movably inserted with a slide post 92, the linkage slide bars 20 can rotate around the slide posts 92, the shape and the size and the number of teeth of the linkage gears one 281 and the linkage gears two 282 are completely the same, the shape and the size of the linkage slide bars 20 and the size of the limit slide bars 19 are completely the same, the limit hooks 191 are welded on the outer wall of one side of the limit slide bars 19 at different positions, and when the flange is impacted by impact force towards the central axis of the flange, the sealing slide blocks 16 can synchronously move towards the center of the flange under the effect of the compact mechanism.

The above-described compact mechanism is further explained: when any one or more sealing sliders 16 are impacted towards the central axis of the flange, the corresponding sealing slider 16 moves towards the central axis of the flange, at this time, the sealing slider 16 drives the limiting slide rods 19 or the linkage slide rods 20 at the two corresponding sides, at this time, due to the meshing transmission effect of the first linkage gear 281 and the second linkage gear 282, all the limiting slide rods 19 and the linkage slide rods 20 are driven to rotate simultaneously, and all the sealing sliders 16 also shrink towards the central axis of the flange to clamp the sealing gasket 17, so that the pipeline connection position fixed by the flange is fastened, and the compact effect is realized.

Specifically, the rotating mechanism comprises a second connecting pipe 21, a central gear 7 and a large bearing 9, the second connecting pipe 21 is fixedly inserted into a shaft hole of the central gear 7, the second connecting pipe 21 is fixedly inserted into an inner ring of the large bearing 9, an inner groove 24 is formed in the second flange 2, the outer ring wall of the large bearing 9 is fixedly bonded with the inner groove 24 wall, a transmission gear 6 is rotatably connected to the outer wall of one side of the second flange 2 through a rotating shaft, the transmission gear 6 is meshed with the central gear 7, a gear ring 5 is welded to the inner wall of the second flange 2, the gear ring 5 is meshed with the transmission gear 6, the second connecting pipe 21 and the second flange 2 can rotate relatively through the large bearing 9, the number of teeth of the gear ring 5 is larger than that of the central gear 7, it is guaranteed that the second flange 2 rotates for one circle, the gear ring 5 passes through the transmission gear 6, the central gear 7 can rotate for multiple circles, the second connecting pipe 21 can rotate for multiple circles, and the second connecting pipe 21 and the central gear 7 can be rapidly driven when the second flange 2 rotates.

The movable handle mechanism comprises two handle columns 4 and two handle grooves 23, each handle column 4 corresponds to each of the two handle grooves 23 in a one-to-one mode, each handle column 4 is connected to the corresponding handle groove 23 in a rotating mode through a rotating shaft, the two handle grooves 23 are symmetrically arranged on the outer peripheral wall of the flange plate two 2, the movable handle mechanism is specific, a first connecting pipe 12 is fixedly connected to the center of the flange plate 1 in a plugging mode, the first connecting pipe 12 penetrates through the inside of the flange plate 1 and extends to the sealing groove 14, one end of the first connecting pipe 12 is provided with an external thread, the two handle clamping grooves 13 are symmetrically arranged on the outer peripheral wall of the flange plate 1, the flange plate 1 and the flange plate two 2 are installed and completed, the two handle clamping grooves 13 correspond to the two handle grooves 23 one to one, the handle columns 4 can be retracted into the corresponding handle clamping grooves 13, the flange plate 1 and the flange plate two 2 which are fixed can be limited, the complexity of the overall appearance of the flange is reduced, portability is improved, and the handle mechanism is more convenient to rotate the handle columns 4 and can be correspondingly accommodated in a reduced space and installation efficiency.

Specifically, a sealing gasket 17 is installed in the sealing groove 14, the cross section of the sealing gasket 17 is in a T shape, the sealing gasket 17 is sleeved on the first connecting pipe 12, the sealing gasket 17 is tightly attached to the side wall of the sealing groove 14, and the T-shaped cross section of the sealing gasket 17 increases the contact area between the sealing slider 16 and the sealing gasket 17, so that the warping phenomenon in the extrusion process is avoided, and the stability and the sealing performance of pipeline connection are improved by installing the sealing gasket 17.

Specifically, the sealing slider 16 is provided with and runs through and has been seted up the slide opening 161, and the whole circular arc platelike that is of sealing slider 16, and every traveller 92 all passes through sliding connection in the inside of T type groove 162, and traveller 92 can slide in T type groove 162, and the circular arc platelike makes sealing slider 16 and sealing gasket 17 contact more inseparabler to the extrusion that makes sealing gasket 17 receive is more even, has improved the leakproofness of pipe connection.

Specifically, the outside integrated into one piece of two 21 connecting pipes is provided with boss 211 and internal thread, and the internal thread of two 21 connecting pipes and the external screw thread looks adaptation of connecting pipe 12, boss 211 can push down start-up lever 181 in the installation, use the screw thread directly to be in the same place the pipe connection, avoided using multiunit bolt fastening flange, and under slewing mechanism's effect, two 21 connecting pipes can rotate fast, thereby realize the quick cooperation of screw thread, the installation and the dismantlement efficiency of flange have been improved.

The working principle and the using process of the invention are as follows: when the rotatable pipeline connecting flange is used, the positions of the four sealing sliders 16 are firstly observed through the sealing groove 14, if the four sealing sliders 16 are not at the initial position, any one of the sealing sliders 16 is pushed to a position far away from the central axis of the flange, at the moment, the sealing slider 16 drives the limiting sliders 19 or the linkage sliders 20 at the corresponding two sides, at the moment, due to the meshing transmission effect of the linkage gear I281 and the linkage gear II 282, all the limiting sliders 19 and the linkage sliders 20 are driven to rotate simultaneously, all the sealing sliders 16 are synchronously far away from the central axis of the flange until the limiting hooks 191 hook the adjacent sealing sliders 16, so that the resetting of all the sealing sliders 16 is completed, then the sealing gasket 17 is installed at the bottom of the sealing groove 14, then the flange I1 and the flange II 2 are closed, then the handle column 4 is pulled out, the handle column 4 is used for rotating the flange II 2, the gear ring 5 in the flange II 2 rotates along with the limiting hooks, so that the transmission gear 6 meshed with the transmission gear 6 also rotates, and the central gear ring 7 rotates, so that the connecting rod 7 is screwed down to the connecting pipe 7, and the connecting pipe 21 is screwed down, so that the connecting rod 21 is screwed with the limiting slider 21, and the connecting pipe can be screwed down, and the connecting pipe can be screwed tightly and the connecting pipe can be screwed down, this sealed slider 16 can slide on slider guide arm 8, and when arbitrary one or more sealed slider 16 received the impact force to flange central axis, corresponding sealed slider 16 can move to flange central axis, and under the effect of compact mechanism this moment, all sealed sliders 16 also contract to flange central axis simultaneously and press from both sides tight seal gasket 17 to the pipeline connection position that the fastening flange was fixed, withdraw handle post 4 in corresponding handle draw-in groove 13 at last, the installation is accomplished, realizes rotatable mode connecting tube.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various 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. The utility model provides a rotatable pipe connecting flange structure, includes ring flange one (1) and ring flange two (2), its characterized in that: the inner wall of the flange plate I (1) is provided with a sealing groove (14), eight connecting guide rods (27) are welded on the inner wall of the sealing groove (14), every two connecting guide rods (27) form a group, the four groups of connecting guide rods (27) are distributed on the inner wall of the sealing groove (14) at equal intervals, the top of one group of connecting guide rods (27) is movably sleeved with a sliding rod floating connecting piece (18), a second spring (26) is arranged between the floating connecting piece (18) of the sliding rod and the inner wall of the sealing groove (14), and a second spring (26) is sleeved outside the connecting piece guide rod (27), the outer wall of the top part of the sliding rod floating connecting piece (18) is bonded with a starting rod (181), the tops of the other three groups of connecting guide rods (27) are fixedly bonded with sliding rod connecting pieces (15), the inner wall of the slide bar floating connecting piece (18) is provided with a limiting mechanism, the inner wall of each slide bar connecting piece (15) is provided with a compact mechanism, four sliding block guide rods (8) are welded on the inner wall of the sealing groove (14), the four sliding block guide rods (8) are distributed on the inner wall of the sealing groove (14) at equal intervals in a circumferential mode, each sliding block guide rod (8) is connected with a sealing sliding block (16) in a sliding mode, the outer circumferential wall of each sealing sliding block (16) is provided with a T-shaped groove (162), a rotating mechanism is arranged inside the second flange plate (2), and two movable handle mechanisms are arranged on the outer peripheral wall of the second flange plate (2);

stop gear includes two linkage gear (281) and two limit slide (19), two limit slide (19) all rotate through the bearing and connect the inner wall at the slide bar unsteady even piece (18), two limit slide (19) and two linkage gear (281) one-to-one, two linkage gear (281) bonding is fixed on the limit slide (19) that corresponds, and two linkage gear (281) mesh mutually, every the welding of one side outer wall of limit slide (19) has spacing trip (191), every the one end activity of limit slide (19) is pegged graft and is had traveller (92).

2. A rotatable pipe coupling flange structure according to claim 1, wherein: the compact mechanism comprises two linkage gears II (282) and two linkage slide bars (20), the two linkage gears II (282) correspond to the two linkage slide bars (20) one by one, the two linkage gears II (282) are fixedly bonded on the corresponding linkage slide bars (20), the two linkage slide bars (20) are rotatably connected to the inner wall of a slide bar connecting piece (15) through bearings, the two linkage gears II (282) are meshed with each other, and one end of each linkage slide bar (20) is movably inserted with a slide column (92).

3. A rotatable pipe coupling flange structure according to claim 1, wherein: the rotating mechanism comprises a second connecting pipe (21), a central gear (7) and a large bearing (9), the second connecting pipe (21) is fixedly inserted into a shaft hole of the central gear (7), the second connecting pipe (21) is fixedly inserted into an inner ring of the large bearing (9), an inner groove (24) is formed in the second flange (2), the outer ring wall of the large bearing (9) is fixedly bonded with the wall of the inner groove (24), a transmission gear (6) is rotatably connected to the outer wall of one side of the second flange (2) through a rotating shaft, the transmission gear (6) is meshed with the central gear (7), a gear ring (5) is welded to the inner wall of the second flange (2), and the gear ring (5) is meshed with the transmission gear (6).

4. A rotatable pipe coupling flange structure according to claim 1, wherein: the movable handle mechanism comprises two handle columns (4) and two handle grooves (23), each handle column (4) is in one-to-one correspondence with the two handle grooves (23), each handle column (4) is rotatably connected into the corresponding handle groove (23) through a rotating shaft, and the handle grooves (23) are symmetrically formed in the peripheral wall of the flange plate II (2).

5. A rotatable pipe coupling flange structure according to claim 4, wherein: the utility model discloses a sealing ring, including ring flange one (1), connecting pipe one (12) run through ring flange one (1) and extend to the inside of seal groove (14), the one end of connecting pipe one (12) is equipped with the external screw thread, the symmetry is provided with two handle draw-in grooves (13) on ring flange one (1) periphery wall.

6. A rotatable pipe coupling flange structure according to claim 1, wherein: a sealing gasket (17) is installed in the sealing groove (14), and the section of the sealing gasket (17) is T-shaped.

7. A rotatable pipe coupling flange structure according to claim 1, wherein: the sealing slide block (16) is provided with a through slide hole (161), the sealing slide block (16) is integrally in the shape of an arc plate, and each sliding column (92) is connected to the inside of the T-shaped groove (162) in a sliding mode.

8. A rotatable pipe coupling flange structure according to claim 3, wherein: the outside integrated into one piece of connecting pipe two (21) is provided with boss (211) and internal thread, just the internal thread of connecting pipe two (21) and the external screw thread looks adaptation of connecting pipe one (12).