CN110953418B - Multifunctional flange connecting piece - Google Patents
Multifunctional flange connecting piece Download PDFInfo
- Publication number
- CN110953418B CN110953418B CN201911084015.XA CN201911084015A CN110953418B CN 110953418 B CN110953418 B CN 110953418B CN 201911084015 A CN201911084015 A CN 201911084015A CN 110953418 B CN110953418 B CN 110953418B
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- Prior art keywords
- connecting piece
- flange
- fixedly connected
- flange connecting
- flange joint
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/032—Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Abstract
The invention relates to the technical field of pipe connection, in particular to a multifunctional flange connecting piece which comprises a first flange connecting piece, a second flange connecting piece and a third flange connecting piece, wherein the first flange connecting piece consists of an upper connecting piece and a lower connecting piece, first threaded holes are formed in two sides of the upper connecting piece and two sides of the lower connecting piece, threaded rods are connected to the inner threads of the first threaded holes in a threaded mode, fastening nuts are connected to the outer threads of the threaded rods in a threaded mode, and compression springs are fixedly connected to one sides of the upper connecting piece and one side of the lower connecting piece. The invention has the beneficial effects that: go up the connecting piece and can carry out the split with connecting piece down, it is comparatively convenient when taking or installing, compression spring cushions between first flange joint spare and the second flange joint spare, reduces the friction between first flange joint spare and the second flange joint spare, and the spacing post of second flange joint spare one side inserts into the spacing groove, makes first flange joint spare and second flange joint spare connect more firmly.
Description
Technical Field
The invention relates to the technical field of pipe fitting connection, in particular to a multifunctional flange connecting piece.
Background
The flange is a part for connecting shafts and pipe ends, is used for connecting inlet and outlet of equipment, is used for connecting two pieces of equipment, such as a speed reducer flange, a flange connection or a flange joint, and is a detachable connection which is formed by connecting a flange, a gasket and a bolt into a group of combined sealing structures.
Present multi-functional flange joint spare is in the middle of the process that uses, the inconvenience of the in-process ten minutes of taking is installed to the connecting piece, and the leakproofness of connecting piece is relatively poor, does not have anticorrosive effect, and the steadiness can be poor when the connecting piece is connected, and body installation angle in the connecting piece can not be adjusted, and after angle of adjustment, the angle of adjustment can not be watched, comparatively inconvenient when watching, consequently need to research and develop a multi-functional flange joint spare urgently.
Disclosure of Invention
The invention aims to provide a multifunctional flange connecting piece, and aims to solve the problems that the connecting piece in the background technology is very inconvenient in the mounting and taking process, the sealing performance of the connecting piece is poor, the anti-corrosion effect is not achieved, the stability of the connecting piece during connection is poor, the mounting angle of a pipe body in the connecting piece cannot be adjusted, the adjusted angle cannot be watched after the angle is adjusted, and the watching is inconvenient.
The technical scheme of the invention is as follows: a multifunctional flange connecting piece comprises a first flange connecting piece, a second flange connecting piece and a third flange connecting piece, wherein the first flange connecting piece comprises an upper connecting piece and a lower connecting piece, first threaded holes are formed in two sides of the upper connecting piece and the lower connecting piece respectively, a threaded rod is connected to the inner threads of the first threaded holes, a fastening nut is connected to the outer threads of the threaded rod, compression springs are fixedly connected to one sides of the upper connecting piece and the lower connecting piece respectively, a first sealing ring is fixedly connected to the inner portions of the upper connecting piece and the lower connecting piece, a first-stage anticorrosive layer is fixedly connected to the inner portions of the first sealing ring, a first pipe body is arranged inside the first flange connecting piece, grooves are formed in two sides of the second flange connecting piece and the third flange connecting piece respectively, universal balls are movably connected to the inner portions of the grooves, and a rotating rod is fixedly connected to one side of the outer portions of the universal balls, the end part of the rotating rod is fixedly connected with a pressing plate, and one side of the pressing plate is fixedly connected with an anti-slip pad.
Further, the bottom of going up the connecting piece and the equal fixedly connected with of top of lower connecting piece are sealed to fill up, the spacing groove has all been seted up to one side of going up the connecting piece and lower connecting piece, the equal fixedly connected with mounting in one side of going up the connecting piece and lower connecting piece.
Further, the fixed orifices have been seted up to the inside of mounting, the inside screw thread that has seted up of fixed orifices, the inside threaded connection of fixed orifices has the dead lever, and the equal threaded connection in both ends of the outside of dead lever has coupling nut.
Furthermore, second threaded holes are formed in the upper side and the lower side of the second flange connecting piece, limiting columns are fixedly connected to the left side and the right side of the second flange connecting piece, and the limiting columns and the limiting grooves are located on the same horizontal line.
Further, the inside fixedly connected with second sealing washer of second flange joint spare, and the inside fixedly connected with second anticorrosive coating of second sealing washer.
Furthermore, the bearings are fixedly connected to the two sides of the second flange connecting piece and the third flange connecting piece, the pressing rod is connected to the inner threads of the bearings, the end portion of the pressing rod is arranged on one side of the universal ball, and the pressing nut is connected to the outer threads of the pressing rod.
Furthermore, a second pipe body is arranged inside the second flange connecting piece and the third flange connecting piece, the second pipe body is arranged inside the third flange connecting piece, and one side of the third flange connecting piece is provided with a limiting hole.
Furthermore, a protractor is carved on one side of the second flange connecting piece and one side of the third flange connecting piece, and the protractor is arranged outside the pressing rod.
The invention provides a multifunctional flange connecting piece through improvement, compared with the prior art, the multifunctional flange connecting piece has the following improvements and advantages:
(1) according to the invention, the upper connecting piece and the lower connecting piece are fixed by rotating the connecting nut through the upper connecting piece, the first sealing ring, the primary anticorrosive layer and the lower connecting piece, the upper connecting piece and the lower connecting piece can be detached and are convenient to take or install, the sealing gasket is pressed tightly to enable the upper connecting piece and the lower connecting piece to be stably fixed, the first sealing ring is used for sealing, and the primary anticorrosive layer is coated with an antiseptic to carry out anticorrosive protection on the inner parts of the upper connecting piece and the lower connecting piece.
(2) According to the invention, the first flange connecting piece and the second flange connecting piece are connected by rotating the fastening nut through the first flange connecting piece, the fastening nut and the compression spring, the compression spring buffers the space between the first flange connecting piece and the second flange connecting piece, so that the friction between the first flange connecting piece and the second flange connecting piece is reduced, and the limiting column on one side of the second flange connecting piece is inserted into the limiting groove, so that the first flange connecting piece and the second flange connecting piece are connected more stably.
(3) According to the invention, the universal ball and the pressing plate are arranged, the universal ball rotates, the pressing plate fixes the second pipe body, the anti-slip pad prevents the second pipe body from sliding, the angle of the second pipe body is adjusted through the rotation of the universal ball, and the angle of the second pipe body is adjusted, so that the second pipe body is more convenient to mount when placed in a space with an inclination.
(4) According to the invention, the universal ball is fixed after the angle is adjusted through the arranged angle measuring line, the angle of the second pipe body is observed through the angle measuring line on one side of the second flange connecting piece and the third flange connecting piece, and the angle of the second pipe body can be observed at any time.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a perspective view of a first flanged connection according to the present invention;
FIG. 3 is a schematic cross-sectional view of a first flanged connection of the present invention;
FIG. 4 is a perspective view of a second flanged connection according to the present invention;
FIG. 5 is a schematic cross-sectional view of a second flanged connection according to the present invention;
FIG. 6 is a side cross-sectional view of a first flanged connection of the present invention;
fig. 7 is a schematic cross-sectional view of a second flange connection of the present invention in combination with a third flange connection.
Description of reference numerals:
1 first flange connecting piece, 2 second flange connecting pieces, 3 threaded rods, 4 first threaded holes, 5 fastening nuts, 6 first pipe bodies, 7 second pipe bodies, 8 compression springs, 9 limiting columns, 10 first sealing rings, 11 sealing gaskets, 12 fixing pieces, 13 connecting nuts, 14 fixing rods, 15 fixing holes, 16 limiting grooves, 17 grooves, 18 universal balls, 19 pressing rods, 20 pressing nuts, 21 rotating rods, 22 pressing plates, 23 second sealing rings, 24 first-level anticorrosive coatings, 25 second-level anticorrosive coatings, 26 second threaded holes, 27 anti-slip pads, 28 angle measuring lines, 29 third flange connecting pieces, 30 limiting holes, 31 upper connecting pieces, 32 lower connecting pieces and 33 bearings.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 7, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The invention provides a multifunctional flange connecting piece through improvement, as shown in figures 1-7, comprising a first flange connecting piece 1, a second flange connecting piece 2 and a third flange connecting piece 29, wherein the first flange connecting piece 1 consists of an upper connecting piece 31 and a lower connecting piece 32, a fixing rod 14 is used for rotating into the inside of a fixing hole 15 in a fixing piece 12 at one side of the upper connecting piece 31 and the lower connecting piece 32, a connecting nut 13 is used for fixing the upper connecting piece 31 and the lower connecting piece 32 by rotating, the upper connecting piece 31 and the lower connecting piece 32 can be disassembled, the taking or the installation is convenient, both sides of the upper connecting piece 31 and the lower connecting piece 32 are provided with a first threaded hole 4, the internal thread of the first threaded hole 4 is connected with a threaded rod 3, the external thread of the threaded rod 3 is connected with a fastening nut 5, the fastening nut 5 is rotated to rotate the threaded rod 3 into the first threaded hole 4 and the second threaded hole 26, the fastening nut 5 is fastened and rotated, the first flange connecting piece 1 is connected with the second flange connecting piece 2, one side of each of the upper connecting piece 31 and the lower connecting piece 32 is fixedly connected with a compression spring 8, the compression springs 8 buffer the space between the first flange connecting piece 1 and the second flange connecting piece 2 and reduce the friction between the first flange connecting piece 1 and the second flange connecting piece 2, the inner parts of the upper connecting piece 31 and the lower connecting piece 32 are fixedly connected with a first sealing ring 10, the inner part of the first sealing ring 10 is fixedly connected with a primary anticorrosive layer 24, the inner part of the first flange connecting piece 1 is provided with a first pipe body 6, the first sealing ring 10 is sealed, the primary anticorrosive layer 24 is coated with an antiseptic to carry out anticorrosion protection on the inner parts of the upper connecting piece 31 and the lower connecting piece 32, the two sides of the second flange connecting piece 2 and the third flange connecting piece 29 are provided with grooves 17, and the inner parts of the grooves 17 are movably connected with universal balls 18, one side fixedly connected with dwang 21 of the outside of universal ball 18 rotates the angle of adjustment second body 7 through universal ball 18, and the angle of adjusting second body 7 makes second body 7 place when having the space of inclination, and second body 7 installs more conveniently, the tip fixedly connected with pressure strip 22 of dwang 21, one side fixedly connected with slipmat 27 of pressure strip 22, slipmat 27 prevents that second body 7 from sliding.
Further, go up the bottom of connecting piece 31 and the sealed pad 11 of the equal fixedly connected with in top of connecting piece 32 down, sealed pad 11 compresses tightly, it carries out firm fixed with connecting piece 32 down to make go up connecting piece 31, spacing groove 16 has all been seted up with one side of connecting piece 32 down to go up connecting piece 31, go up connecting piece 31 and the equal fixedly connected with mounting 12 in one side of connecting piece 32 down, spacing post 9 of 2 one sides of second flange joint spare inserts into spacing groove 16, make first flange joint spare 1 and second flange joint spare 2 connect more firmly.
Further, fixed orifices 15 have been seted up to the inside of mounting 12, and the inside of fixed orifices 15 is threaded, and the inside threaded connection of fixed orifices 15 has dead lever 14, and the equal threaded connection in both ends of the outside of dead lever 14 has coupling nut 13, rotates coupling nut 13 and fixes last connecting piece 31 and lower connecting piece 32, and last connecting piece 31 and lower connecting piece 32 can carry out the split.
Further, second screw holes 26 are formed in the upper side and the lower side of the second flange connecting piece 2, the limiting columns 9 are fixedly connected to the left side and the right side of the second flange connecting piece 2, the limiting columns 9 are respectively located on the same horizontal line with the limiting grooves 16, and the limiting columns 9 are inserted into the limiting grooves 16, so that the first flange connecting piece 1 and the second flange connecting piece 2 are connected more stably.
Further, the inside fixedly connected with second sealing washer 23 of second flange joint spare 2, and the inside fixedly connected with second grade anticorrosive coating 25 of second sealing washer 23, second sealing washer 23 is sealed 2 insides of second flange joint spare, and second grade anticorrosive coating 25 surface scribbles anticorrosive protection of carrying on inside anticorrosive protection to second flange joint spare 2.
Further, the bearings 33 are fixedly connected to two sides of the second flange connecting piece 2 and the third flange connecting piece 29, the pressing rod 19 is connected to the inner threads of the bearings 33, the end portion of the pressing rod 19 is arranged on one side of the universal ball 18, the pressing nut 20 is connected to the outer threads of the pressing rod 19, the pressing nut 20 is rotated to press the end portion of the pressing rod 19 against the outer wall of the universal ball 18, and the universal ball 18 is fixed after the angle is adjusted.
Further, a second pipe body 7 is arranged inside the second flange connecting piece 2 and the third flange connecting piece 29, the second pipe body 7 is arranged inside the third flange connecting piece 29, a limiting hole 30 is formed in one side of the third flange connecting piece 29, and the limiting hole 30 is used for connecting other flange connecting pieces.
Further, the angle measuring line 28 is carved on one side of the second flange connector 2 and one side of the third flange connector 29, the angle measuring line 28 is arranged outside the pressing rod 19, the angle of the second pipe body 7 is observed through the angle measuring line 28 on one side of the second flange connector 2 and one side of the third flange connector 29, and the angle of the second pipe body 7 can be observed at any time.
The working principle is as follows: the upper connecting piece 31 and the lower connecting piece 32 are respectively placed outside the first pipe body 6, the fixing rod 14 is used for rotating into the fixing hole 15 in the fixing piece 12 on one side of the upper connecting piece 31 and the lower connecting piece 32, the connecting nut 13 is rotated to fix the upper connecting piece 31 and the lower connecting piece 32, the upper connecting piece 31 and the lower connecting piece 32 can be detached, taking or installation is convenient, the sealing gasket 11 is tightly pressed to enable the upper connecting piece 31 and the lower connecting piece 32 to be stably fixed, the first sealing ring 10 is sealed, the primary anticorrosive layer 24 is coated with an antiseptic, the inner parts of the upper connecting piece 31 and the lower connecting piece 32 are subjected to anticorrosive protection, the second pipe body 7 is arranged in the second flange connecting piece 2, the first flange connecting piece 1 is placed on one side of the second flange connecting piece 2, the fastening nut 5 is rotated, the threaded rod 3 is rotated to enter the first threaded hole 4 and the second threaded hole 26, the fastening nut 5 is fastened and rotated, the first flange connecting piece 1 is connected with the second flange connecting piece 2, the second flange connecting piece 2 presses the compression spring 8 on one side of the first flange connecting piece 1, the compression spring 8 buffers the space between the first flange connecting piece 1 and the second flange connecting piece 2 and reduces the friction between the first flange connecting piece 1 and the second flange connecting piece 2, the limiting column 9 on one side of the second flange connecting piece 2 is inserted into the limiting groove 16, so that the first flange connecting piece 1 and the second flange connecting piece 2 are connected more stably, the second pipe body 7 is arranged between the second flange connecting piece 2 and the third flange connecting piece 29, the second sealing ring 23 seals the inside of the second flange connecting piece 2, the surface of the secondary anticorrosive coating 25 is coated with an anticorrosive protection for the inside of the second flange connecting piece 2, the universal ball 18 rotates, the compression plate 22 fixes the second pipe body 7, the slipmat 27 prevents that the second body 7 from sliding, rotate the angle of adjustment second body 7 through universal ball 18, the angle of adjusting second body 7 makes second body 7 place when having the space of inclination, second body 7 installs more conveniently, rotate gland nut 20, the tip that will compress tightly pole 19 supports presses at the outer wall of universal ball 18, make universal ball 18 fix after adjusting the angle, the angulation line 28 through second flange joint spare 2 and third flange joint spare 29 one side observes the angle of second body 7, the angle of adjustment of second body 7 can be watched at any time.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A multifunctional flange connecting piece comprises a first flange connecting piece (1), a second flange connecting piece (2) and a third flange connecting piece (29), and is characterized in that the first flange connecting piece (1) consists of an upper connecting piece (31) and a lower connecting piece (32), first threaded holes (4) are formed in the two sides of the upper connecting piece (31) and the lower connecting piece (32), a threaded rod (3) is connected to the inner threads of the first threaded holes (4), a fastening nut (5) is connected to the outer threads of the threaded rod (3), a compression spring (8) is fixedly connected to one side of the upper connecting piece (31) and one side of the lower connecting piece (32), a first sealing ring (10) is fixedly connected to the inner parts of the upper connecting piece (31) and the lower connecting piece (32), and a first-level anticorrosive layer (24) is fixedly connected to the inner parts of the first sealing ring (10), the inside of first flange joint spare (1) is provided with first body (6), recess (17) are all seted up with the both sides of third flange joint spare (29) in second flange joint spare (2), and the inside swing joint of recess (17) has universal ball (18), one side fixedly connected with dwang (21) of the outside of universal ball (18), the tip fixedly connected with pressure strip (22) of dwang (21), one side fixedly connected with slipmat (27) of pressure strip (22).
2. A multi-functional flange joint according to claim 1, wherein: go up the equal fixedly connected with in bottom of connecting piece (31) and the top of lower connecting piece (32) and seal up (11), spacing groove (16) have all been seted up with one side of lower connecting piece (32) in last connecting piece (31), go up the equal fixedly connected with mounting (12) in one side of connecting piece (31) and lower connecting piece (32).
3. A multi-functional flange joint according to claim 2, wherein: fixing hole (15) have been seted up to the inside of mounting (12), the inside screw thread has been seted up to the inside of fixing hole (15), the inside threaded connection of fixing hole (15) has dead lever (14), and the equal threaded connection in both ends of the outside of dead lever (14) has coupling nut (13).
4. A multi-functional flange joint according to claim 2, wherein: second screw holes (26) are formed in the upper side and the lower side of the second flange connecting piece (2), limiting columns (9) are fixedly connected to the left side and the right side of the second flange connecting piece (2), and the limiting columns (9) are located on the same horizontal line with the limiting grooves (16) respectively.
5. A multi-functional flange joint according to claim 1, wherein: the inside fixedly connected with second sealing washer (23) of second flange joint spare (2), and the inside fixedly connected with second anticorrosive coating (25) of second sealing washer (23).
6. A multi-functional flange joint according to claim 1, wherein: the two sides of the second flange connecting piece (2) and the third flange connecting piece (29) are fixedly connected with bearings (33), the inner threads of the bearings (33) are connected with pressing rods (19), the end portions of the pressing rods (19) are arranged on one side of the universal ball (18), and the outer threads of the pressing rods (19) are connected with pressing nuts (20).
7. A multi-functional flange joint according to claim 1, wherein: the second flange connecting piece (2) and the third flange connecting piece (29) are internally provided with a second pipe body (7), the second pipe body (7) is arranged inside the third flange connecting piece (29), and one side of the third flange connecting piece (29) is provided with a limiting hole (30).
8. A multi-functional flange joint according to claim 6, wherein: and angle measuring lines (28) are respectively carved on one sides of the second flange connecting piece (2) and the third flange connecting piece (29), and the angle measuring lines (28) are arranged outside the pressing rod (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084015.XA CN110953418B (en) | 2019-11-08 | 2019-11-08 | Multifunctional flange connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911084015.XA CN110953418B (en) | 2019-11-08 | 2019-11-08 | Multifunctional flange connecting piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110953418A CN110953418A (en) | 2020-04-03 |
| CN110953418B true CN110953418B (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911084015.XA Active CN110953418B (en) | 2019-11-08 | 2019-11-08 | Multifunctional flange connecting piece |
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| CN (1) | CN110953418B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202852248U (en) * | 2012-08-26 | 2013-04-03 | 山东科瑞机械制造有限公司 | Insert-type pipeline connecting assembly |
| CN205155401U (en) * | 2015-12-01 | 2016-04-13 | 魏治杰 | Pipe connection component |
| CN208090126U (en) * | 2018-02-09 | 2018-11-13 | 偃师中裕燃气有限公司 | A kind of sealing flange connector of natural gas transportation pipeline |
| CN209054213U (en) * | 2018-09-17 | 2019-07-02 | 山东鲁源消防科技有限公司 | A kind of non-threaded sealing flange |
| CN110056728A (en) * | 2019-05-08 | 2019-07-26 | 中石化四机石油机械有限公司 | A kind of rotatable flange connecting apparatus and connection method |
| CN209180535U (en) * | 2018-11-22 | 2019-07-30 | 泰州华然不锈钢制品有限公司 | A kind of fluid pipeline steel flange component |
-
2019
- 2019-11-08 CN CN201911084015.XA patent/CN110953418B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202852248U (en) * | 2012-08-26 | 2013-04-03 | 山东科瑞机械制造有限公司 | Insert-type pipeline connecting assembly |
| CN205155401U (en) * | 2015-12-01 | 2016-04-13 | 魏治杰 | Pipe connection component |
| CN208090126U (en) * | 2018-02-09 | 2018-11-13 | 偃师中裕燃气有限公司 | A kind of sealing flange connector of natural gas transportation pipeline |
| CN209054213U (en) * | 2018-09-17 | 2019-07-02 | 山东鲁源消防科技有限公司 | A kind of non-threaded sealing flange |
| CN209180535U (en) * | 2018-11-22 | 2019-07-30 | 泰州华然不锈钢制品有限公司 | A kind of fluid pipeline steel flange component |
| CN110056728A (en) * | 2019-05-08 | 2019-07-26 | 中石化四机石油机械有限公司 | A kind of rotatable flange connecting apparatus and connection method |
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| CN110953418A (en) | 2020-04-03 |
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