CN110778841A - Double-ripple metal expansion piece - Google Patents
Double-ripple metal expansion piece Download PDFInfo
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- CN110778841A CN110778841A CN201911045075.0A CN201911045075A CN110778841A CN 110778841 A CN110778841 A CN 110778841A CN 201911045075 A CN201911045075 A CN 201911045075A CN 110778841 A CN110778841 A CN 110778841A
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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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
- F16L51/03—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube comprising two or more bellows
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Abstract
The invention discloses a double-ripple metal expansion piece, and particularly relates to the technical field of coal-fired boilers, which comprises an intermediate pipe, wherein one end of the intermediate pipe is provided with a first connecting pipe, the other end of the intermediate pipe is provided with a second connecting pipe, ripple expansion pieces are arranged between the intermediate pipe and the first connecting pipe and between the second connecting pipe, transition pipes are arranged at two ends of each ripple expansion piece, and a sealing mechanism is arranged in each transition pipe; the mechanism of sealing is including the shrouding, the central point of shrouding puts and is provided with the round hole, the circumference side of round hole is annular evenly distributed and has five through-holes, the one end that the round hole was kept away from to the through-hole runs through the outer peripheral face of shrouding. According to the invention, the handle is rotated along the screwing-in direction of the threads on the surface of the vertical rod, so that the sealing plate is rotated until the peripheral surface of the sealing plate is completely attached to the inner wall of the transition pipe, and the protrusion is popped out of the through hole and clamped into the clamping groove under the action of the restoring force of the spring, so that the conveying of pulverized coal can be quickly blocked.
Description
Technical Field
The invention relates to the technical field of coal-fired boilers, in particular to a double-ripple metal expansion piece.
Background
A bellows expansion joint, also known as an expansion joint or expansion joint, is conventionally composed of a bellows (an elastic element) constituting its working body and accessories such as end pipes, brackets, flanges, pipes, etc. The corrugated expansion piece is a compensation element, and can absorb the size change of pipeline, conduit and container due to expansion and contraction, or compensate the axial, transverse and angular displacement of pipeline, conduit and container, and can also be used for noise reduction and vibration reduction. And the double-ripple metal expansion pieces are widely applied to coal-fired units so as to reduce the stress and thrust of the pipeline and ensure the safe operation of the equipment.
Chinese patent application publication No. CN 208348772U discloses a double-corrugated metal expansion piece, which is used in the technical field of coal-fired boilers. The embodiment of the utility model provides an in dual ripple expansion bend includes that left first takeover and second are taken over, the vertical first crown plate that is provided with in first takeover right side, be provided with first external pipe on the first crown plate, first external pipe below, first crown plate right side is provided with first interior baffle, first external pipe top sets up first pull rod, first pull rod below, first external pipe right side sets up first bellows, the left side is taken over to the second, first interior baffle below sets up first interior ball, first crown plate, first external pipe, the space that first bellows and second takeover formation is filled by the filler. The embodiment of the utility model provides an in along expansion bend buggy direction of delivery, eliminate the step of first takeover fixed terminal surface or make the step transition gently, but furthest's reduction buggy is gathered, prevents to gather because of the buggy and get into in the metal bellows, buggy spontaneous combustion loss expansion bend, the good reliability, long service life.
However, when the coal powder conveying device is actually used, if local components in the conveying pipeline need to be replaced, the conveying of the coal powder in the conveying pipeline cannot be quickly blocked.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, embodiments of the present invention provide a dual-corrugated metal expansion device, in which a handle is rotated along a screwing direction of a surface thread of a vertical rod, so that a sealing plate is rotated to completely fit an inner wall of a transition pipe to an outer circumferential surface of the sealing plate, and a protrusion is ejected out of a through hole and clamped into a clamping groove under a restoring force of a spring, thereby rapidly blocking the transportation of pulverized coal, and solving the above-mentioned problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a double-corrugated metal expansion piece comprises a middle pipe, wherein one end of the middle pipe is provided with a first connecting pipe, the other end of the middle pipe is provided with a second connecting pipe, corrugated expansion pieces are arranged between the first connecting pipe and the middle pipe and between the second connecting pipe and the middle pipe, two ends of each corrugated expansion piece are provided with transition pipes, and a sealing mechanism is arranged in each transition pipe;
the sealing mechanism comprises sealing plates, a round hole is arranged at the center of each sealing plate, five through holes are uniformly distributed on the circumferential side of the round hole in an annular shape, one end of each through hole, far away from the round hole, penetrates through the outer circumferential surface of each sealing plate, a main rope is arranged in one through hole, branch ropes are arranged in the other through holes, the main rope and one ends, close to the round holes, of the branch ropes are connected to form a rope knot, one end, far away from the round hole, of each main rope is provided with a limiting plate and is fixedly connected with the limiting plate, one end, far away from the round hole, of each branch rope is provided with a bulge and is fixedly connected with the bulge, springs are movably sleeved outside the branch ropes, a vertical rod is arranged inside the through hole where the main rope is located, the vertical rod is in threaded connection with the through hole at the corresponding position, the welding of fixed plate top has the handle, the transition pipe inner wall corresponds bellied position and is provided with the screens groove, protruding and screens groove phase-match.
In a preferred embodiment, first connecting flanges are welded at two ends of the intermediate pipe, the first connecting pipe, the second connecting pipe and the corrugated expansion piece, second connecting flanges are welded at two ends of the transition pipe, and the first connecting flanges and the second connecting flanges at corresponding positions between the intermediate pipe, the first connecting pipe, the second connecting pipe and the corrugated expansion piece are fixedly connected.
In a preferred embodiment, the sealing plate is a disc-shaped structure, and the diameter of the sealing plate is equal to the diameter of the transition pipe.
In a preferred embodiment, a sliding groove is formed in an inner cavity of the through hole where the branch rope is located, the sliding groove is of an annular structure, and the outer peripheral surface of the spring is movably attached to the inner peripheral surface of the sliding groove.
In a preferred embodiment, one end of the inner cavity of the sliding chute, which is close to the round hole, is provided with a first baffle, and one end of the inner cavity of the sliding chute, which is far away from the round hole, is provided with a second baffle, and the first baffle and the second baffle are both connected with the inner wall of the sliding chute in a sliding manner.
In a preferred embodiment, two ends of the spring are respectively and fixedly connected with the first baffle and the second baffle at corresponding positions, and one end of the stay rope, which is close to the circular hole, penetrates through the first baffle and is movably connected with the first baffle.
In a preferred embodiment, a limiting groove is formed in the top center of the fixing plate, the axial cross section of the limiting groove is in a T shape, and the limiting plate is movably clamped inside the limiting groove.
In a preferred embodiment, a pull ring is fixedly arranged at the top middle part of the limit plate.
In a preferred embodiment, the first connecting flanges at two ends of the corrugated expansion piece and the outer peripheral surface of the second connecting flange of the transition pipe facing one end of the corrugated expansion piece are annularly and equally distributed with a plurality of locking plates, a screw rod penetrates through the locking plates at the position of the corrugated expansion piece close to the corresponding position, and the screw rod is fixedly connected with the locking plates through nuts.
The invention has the technical effects and advantages that:
1. the invention assembles the middle pipe, the first connecting pipe, the second connecting pipe, the transition pipe and the corrugated expansion piece into a complete coal powder conveying channel, when the conveying pipeline needs to be communicated, fingers can be used for hooking the pull ring to enable the bulge to be separated from the clamping groove, after the bulge is completely separated from the clamping groove, the handle is rotated along the screwing-in direction of the surface screw thread of the vertical rod, the conveying direction of the sealing plate and the conveying pipeline is kept consistent, the stable conveying of the coal powder in the pipeline is ensured, if the first connecting pipe or the corrugated expansion piece or the middle pipe or the second connecting pipe needs to be partially replaced, the handle is rotated along the screwing-in direction of the surface screw thread of the vertical rod, the sealing plate is rotated until the outer peripheral surface of the sealing plate is completely attached to the inner wall of the transition pipe, the bulge is popped out of the through hole under the restoring force of the spring and is clamped into the clamping groove, thereby realizing the partial replacement of the first connecting pipe or the corrugated expansion, compared with the prior art, the local assembly of the conveying pipeline can be replaced, the replacement cost is reduced, and the transportation is convenient;
2. according to the invention, by arranging the locking plate and the screw rod, the nut on the screw rod can be unscrewed or screwed in the assembling process, so that the corrugated expansion piece is extended or shortened in a small range, then the nut is screwed, the corresponding length can be adjusted, and the error in the cutting process is eliminated, so that the first connecting pipe and the middle pipe are accurately connected with the corrugated expansion piece between the first connecting pipe and the middle pipe or the corrugated expansion piece between the second connecting pipe and the middle pipe.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of a transition tube structure of the present invention.
Fig. 3 is a schematic diagram of a fixing plate structure according to the present invention.
Fig. 4 is an assembly structure view of the limiting plate and the pull ring of the invention.
Figure 5 is a side cross-sectional view of the closure plate of the present invention.
FIG. 6 is an enlarged view of the portion A of FIG. 1 according to the present invention.
FIG. 7 is an enlarged view of the portion B of FIG. 1 according to the present invention.
FIG. 8 is an enlarged view of the structure of the portion C of FIG. 5 according to the present invention.
The reference signs are: the device comprises a middle pipe 1, a first connecting pipe 2, a second connecting pipe 3, a transition pipe 4, a first connecting flange 5, a second connecting flange 6, a corrugated expansion piece 7, a sealing plate 8, a round hole 9, a through hole 10, a main rope 11, a branch rope 12, a protrusion 13, a spring 14, a sliding groove 15, a first baffle 16, a second baffle 17, a clamping groove 18, a vertical rod 19, a fixing plate 20, a limiting groove 21, a limiting plate 22, a pull ring 23, a handle 24, a screw rod 25 and a locking plate 26.
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.
As shown in fig. 1-8, the present invention provides a dual-corrugated metal expansion piece, which includes a middle pipe 1, wherein one end of the middle pipe 1 is provided with a first connection pipe 2, and the other end is provided with a second connection pipe 3, corrugated expansion pieces 7 are respectively arranged between the first connection pipe 2 and the middle pipe 1 and between the second connection pipe 3 and the middle pipe 1, two ends of each corrugated expansion piece 7 are respectively provided with a transition pipe 4, and a sealing mechanism is arranged inside each transition pipe 4;
the sealing mechanism comprises sealing plates 8, round holes 9 are formed in the center of the sealing plates 8, five through holes 10 are uniformly distributed on the circumferential side of the round holes 9 in an annular shape, one ends of the through holes 10 far away from the round holes 9 penetrate through the outer circumferential surface of the sealing plates 8, a main rope 11 is arranged inside one of the through holes 10, branch ropes 12 are arranged inside the other through holes 10, the main rope 11 and one ends of the branch ropes 12 close to the round holes 9 are connected to form a rope knot, one ends of the main rope 11 far away from the round holes 9 are provided with limiting plates 22 and fixedly connected with the limiting plates 22, one ends of the branch ropes 12 far away from the round holes 9 are provided with protrusions 13 and fixedly connected with the protrusions 13, springs 14 are movably sleeved outside the branch ropes 12, a vertical rod 19 is arranged inside the through hole 10 where the main rope 11 is located, the vertical rod 19 is in threaded connection with the through hole 10 at the corresponding position, and the main, one end of the vertical rod 19, which is far away from the round hole 9, is fixedly connected with a fixing plate 20, the top of the fixing plate 20 is welded with a handle 24, a clamping groove 18 is formed in the inner wall of the transition pipe 4, which corresponds to the position of the protrusion 13, and the protrusion 13 is matched with the clamping groove 18;
the middle pipe 1, the first connecting pipe 2, the second connecting pipe 3 and the corrugated expansion piece 7 are respectively welded with a first connecting flange 5 at two ends, the transition pipe 4 is respectively welded with a second connecting flange 6 at two ends, and the first connecting flange 5 and the second connecting flange 6 at corresponding positions among the middle pipe 1, the first connecting pipe 2, the second connecting pipe 3 and the corrugated expansion piece 7 are fixedly connected, so that the disassembly, assembly and transportation are facilitated;
the sealing plate 8 is of a disc-shaped structure, and the diameter of the sealing plate 8 is equal to that of the transition pipe 4;
a sliding groove 15 is arranged in the inner cavity of the through hole 10 at the position of the branch rope 12, the sliding groove 15 is of an annular structure, the outer circumferential surface of the spring 14 is movably attached to the inner circumferential surface of the sliding groove 15, and the spring 14 can be guided by the annular sliding groove 15 to perform telescopic change in the linear direction;
a first baffle 16 is arranged at one end, close to the round hole 9, of the inner cavity of the sliding groove 15, a second baffle 17 is arranged at one end, far away from the round hole 9, of the inner cavity of the sliding groove 15, and the first baffle 16 and the second baffle 17 are connected with the inner wall of the sliding groove 15 in a sliding mode;
two ends of the spring 14 are respectively fixedly connected with a first baffle 16 and a second baffle 17 at corresponding positions, and one end of the branch rope 12 close to the round hole 9 penetrates through the first baffle 16 and is movably connected with the first baffle 16;
a limiting groove 21 is formed in the center of the top of the fixing plate 20, the axial section of the limiting groove 21 is T-shaped, and the limiting plate 22 is movably clamped in the limiting groove 21;
a pull ring 23 is fixedly arranged in the middle of the top of the limiting plate 22;
the implementation mode is specifically as follows: in the actual use process, the two transition pipes 4 are connected at the two ends of the corrugated expansion piece 7 in a flange connection mode, and the two transition pipes 4 are fixedly connected with the first connecting pipe 2/the second connecting pipe 6 and the middle pipe 1 at the corresponding positions respectively in a flange connection mode, so that a complete pulverized coal conveying channel is formed, when the conveying pipeline needs to be communicated, the pull ring 23 can be hooked by fingers, the pull ring 23 is lifted upwards by taking the handle 24 as a fulcrum, so that the rest branch ropes 12 are pulled to move towards the direction of the circular hole 9 through the main rope 11, in the process, the branch ropes 12 pull the second baffle plate 17 to move towards the direction of the circular hole 9, so that the bulge 13 is separated from the clamping groove 18, and in the process that the second baffle plate 17 moves towards the direction of the circular hole 9, because the first baffle plate 16 is blocked by the circular chute 15, the second baffle plate 17 can squeeze the spring 14 to compress the second baffle plate, after the protrusion 13 completely breaks away from the retaining groove 18, the handle 24 is rotated along the screwing direction of the surface thread of the vertical rod 19, so that the sealing plate 8 rotates 180 degrees, the sealing plate can keep consistent with the conveying direction of the conveying pipeline, and the stable conveying of the coal dust in the pipeline can be ensured, if the first connecting pipe 2 or the corrugated expansion piece 7 or the intermediate pipe 1 or the second connecting pipe 3 needs to be partially replaced, the handle 24 is rotated along the screwing direction of the surface thread of the vertical rod 19, so that the sealing plate 8 rotates, and when the protrusion 13 contacts with the inner wall of the transition pipe 4 in the rotating process, the inner wall of the protrusion 13 can extrude the protrusion 13 to compress the spring 14, when the sealing plate 8 rotates to completely fit the outer peripheral surface of the sealing plate with the inner wall of the transition pipe 4, the protrusion 13 just faces the retaining groove 18, at the moment, under the restoring force of the spring 14, the protrusion 13 is ejected out of the through hole 10 and, usable shrouding 8 blocks the inside buggy of this pipeline and carries to the realization carries out local change to first connecting pipe 2 or ripple expansion bend 7 or intermediate pipe 1 or second connecting pipe 3, and this embodiment has specifically solved the pipeline formula structure as an organic whole that exists among the prior art, and inconvenient pipeline's part is changed, and the replacement cost is high, and the problem of the transportation of not being convenient for.
As shown in fig. 1-2, in the dual-corrugated metal expansion piece, a plurality of locking plates 26 are annularly and equally distributed on the outer peripheral surfaces of the first connecting flanges 5 at the two ends of the corrugated expansion piece 7 and the second connecting flange 6 at the end of the transition pipe 4 facing the corrugated expansion piece 7, a screw 25 penetrates through the locking plates 26 at the position close to the corresponding corrugated expansion piece 7, and the screw 25 is fixedly connected with the locking plates 26 through nuts;
the implementation mode is specifically as follows: when the first connection pipe 2 and the intermediate pipe 1 are connected with the bellows 7 therebetween or the second connection pipe 3 and the intermediate pipe 1 with the bellows 7 therebetween, due to the error of the cutting process, the first connecting pipe 2, the middle pipe 1 and the second connecting pipe 3 are slightly longer or shorter, the nut on the screw 25 can now be loosened or tightened, so that the bellows expansion device 7 is elongated or shortened to a small extent, and then the nut is tightened, can be adjusted to the corresponding length, eliminates the error in the cutting process, leads the first connecting pipe 2 and the middle pipe 1 to be accurately connected with the corrugated expansion piece 7 between the two or leads the corrugated expansion piece 7 between the second connecting pipe 3 and the middle pipe 1 to be accurately connected, the method and the device for connecting the two adjacent pipelines specifically solve the problem that accurate connection cannot be achieved between the two adjacent pipelines due to cutting deviation or influence between geographic positions in the prior art.
The working principle of the invention is as follows:
referring to the attached drawings 1-8 of the specification, in the actual use process, the middle pipe 1, the first connecting pipe 2, the second connecting pipe 3, the transition pipe 4 and the corrugated expansion piece 7 are assembled into a complete coal powder conveying channel, when the conveying pipeline needs to be communicated, the pull ring 23 can be hooked by fingers, so that the protrusion 13 is separated from the clamping groove 18, after the protrusion 13 is completely separated from the clamping groove 18, the handle 24 is rotated along the screwing direction of the surface threads of the vertical rod 19, so that the sealing plate 8 is consistent with the conveying direction of the conveying pipeline, the stable conveying of the coal powder in the pipeline is ensured, if the first connecting pipe 2 or the corrugated expansion piece 7 or the middle pipe 1 or the second connecting pipe 3 needs to be partially replaced, the handle 24 is rotated along the screwing direction of the surface threads of the vertical rod 19, so that the sealing plate 8 is rotated until the outer peripheral surface of the sealing plate is completely attached to the inner wall of the, the bulge 13 is popped out of the through hole 10 under the restoring force of the spring 14 and clamped into the clamping groove 18, so that the first connecting pipe 2 or the corrugated expansion piece 7 or the middle pipe 1 or the second connecting pipe 3 can be partially replaced;
referring to the attached drawings 1-2 of the specification, when each component of the conveying pipeline is assembled, the nut on the screw rod 25 can be unscrewed or screwed, so that the corrugated expansion piece 7 extends or shortens within a small range, then the nut is screwed, the corresponding length can be adjusted, errors in the cutting process are eliminated, and the first connecting pipe 2, the middle pipe 1 and the corrugated expansion piece 7 between the two or the corrugated expansion piece 7 between the second connecting pipe 3 and the middle pipe 1 are accurately connected, so that the conveying pipeline is convenient and practical.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (9)
1. The utility model provides a dual ripple metal expansion bend, includes intermediate pipe (1), intermediate pipe (1) one end is provided with first connecting pipe (2) and the other end is provided with second connecting pipe (3), its characterized in that: corrugated expansion pieces (7) are arranged between the first connecting pipe (2), the second connecting pipe (3) and the middle pipe (1), transition pipes (4) are arranged at two ends of each corrugated expansion piece (7), and sealing mechanisms are arranged in the transition pipes (4);
the sealing mechanism comprises a sealing plate (8), a round hole (9) is formed in the center position of the sealing plate (8), five through holes (10) are uniformly distributed in an annular mode in the circumferential direction of the round hole (9), one end, far away from the round hole (9), of each through hole (10) penetrates through the outer peripheral face of the sealing plate (8), a main rope (11) is arranged inside each through hole (10), a supporting rope (12) is arranged inside each through hole (10), the main rope (11) is connected with one end, close to the round hole (9), of each supporting rope (12) to form a rope knot, a limiting plate (22) is arranged at one end, far away from the round hole (9), of each main rope (11), and is fixedly connected with the limiting plate (22), a bulge (13) is arranged at one end, far away from the round hole (9), of each supporting rope (12), and a spring (14) is fixedly connected with the bulge (13) in a, through-hole (10) inside montant (19) that main rope (11) place is provided with, threaded connection between montant (19) and through-hole (10) that correspond the position, main rope (12) activity runs through in the central point of montant (19) puts, the one end fixedly connected with fixed plate (20) of round hole (9) are kept away from montant (19), fixed plate (20) top welding has handle (24), the position that transition pipe (4) inner wall corresponds arch (13) is provided with screens groove (18), arch (13) and screens groove (18) phase-match.
2. A dual corrugated metal expander as defined in claim 1 wherein: first flange (5) have all been welded at intervalve (1), first connecting pipe (2), second connecting pipe (3) and ripple expansion bend (7) both ends, second flange (6) have all been welded at transition pipe (4) both ends, first flange (5) and second flange (6) fixed connection that all correspond the position between intervalve (1), first connecting pipe (2), second connecting pipe (3) and ripple expansion bend (7).
3. A dual corrugated metal expander as defined in claim 1 wherein: the sealing plate (8) is of a disc-shaped structure, and the diameter of the sealing plate (8) is equal to that of the transition pipe (4).
4. A dual corrugated metal expander as defined in claim 1 wherein: the inner cavity of the through hole (10) at the position of the branch rope (12) is provided with a sliding chute (15), the sliding chute (15) is of a circular ring structure, and the outer peripheral surface of the spring (14) is movably attached to the inner peripheral surface of the sliding chute (15).
5. The dual corrugated metal bellows of claim 4, wherein: one end of the inner cavity of the sliding groove (15) close to the round hole (9) is provided with a first baffle (16) and one end of the inner cavity of the sliding groove far away from the round hole (9) is provided with a second baffle (17), and the first baffle (16) and the second baffle (17) are both connected with the inner wall of the sliding groove (15) in a sliding mode.
6. A dual corrugated metal expander as claimed in claim 5 and wherein: the two ends of the spring (14) are fixedly connected with the first baffle (16) and the second baffle (17) at corresponding positions respectively, and one end of the branch rope (12) close to the round hole (9) penetrates through the first baffle (16) and is movably connected with the first baffle (16).
7. A dual corrugated metal expander as defined in claim 1 wherein: fixed plate (20) top central point puts and is provided with spacing groove (21), the axle cross-sectional shape of spacing groove (21) is the T font, limiting plate (22) activity joint is inside in spacing groove (21).
8. A dual corrugated metal expander as defined in claim 1 wherein: and a pull ring (23) is fixedly arranged in the middle of the top of the limiting plate (22).
9. A dual corrugated metal expander as defined in claim 2 wherein: first flange (5) and transition pipe (4) at ripple expansion bend (7) both ends are facing second flange (6) periphery of ripple expansion bend (7) one end and are personally submitted the annular and equally divide cloth and have a plurality of locking plates (26), are close to corresponding the position it is equipped with screw rod (25) to run through between ripple expansion bend (7) department locking plate (26), through nut fixed connection between screw rod (25) and locking plate (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045075.0A CN110778841B (en) | 2019-10-30 | 2019-10-30 | Double-ripple metal expansion piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045075.0A CN110778841B (en) | 2019-10-30 | 2019-10-30 | Double-ripple metal expansion piece |
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| Publication Number | Publication Date |
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| CN110778841A true CN110778841A (en) | 2020-02-11 |
| CN110778841B CN110778841B (en) | 2021-08-31 |
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| CN201911045075.0A Active CN110778841B (en) | 2019-10-30 | 2019-10-30 | Double-ripple metal expansion piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112278185A (en) * | 2020-10-23 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Reinforcing ring installation device and reinforcing ring installation method |
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| CN103363205A (en) * | 2012-04-10 | 2013-10-23 | 黑利福卡斯有限公司 | Fluid conduit systems and apparatus |
| CN206656063U (en) * | 2017-04-07 | 2017-11-21 | 山东墨龙石油机械股份有限公司 | A kind of powder material is blown transmission pipeline component |
| CN107152581A (en) * | 2017-06-16 | 2017-09-12 | 张兴达 | Pipeline |
| CN208107400U (en) * | 2018-03-20 | 2018-11-16 | 滨海县海格机械有限公司 | A kind of cylinder-rotating three-way pipeline control casting |
| CN208587639U (en) * | 2018-07-24 | 2019-03-08 | 南京晨光东螺波纹管有限公司 | A kind of dust-proof wear-resisting external pulling type straight-pipe pressure balanced expansion joint resistant to high temperatures |
| CN209262509U (en) * | 2018-12-20 | 2019-08-16 | 吴俊霖 | A kind of internal and external pressure balance type compensator |
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| CN112278185A (en) * | 2020-10-23 | 2021-01-29 | 中船黄埔文冲船舶有限公司 | Reinforcing ring installation device and reinforcing ring installation method |
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