High-strength metal corrugated pipe with embedded annular reinforcing ribs

By embedding a C-shaped elastic ring inside the metal bellows and setting a limiting device, the problems of difficult recycling and complicated loading and unloading of the lining structure in the prior art are solved, and a high-strength and easy-to-operate metal bellows design is realized.

CN223855071UActive Publication Date: 2026-01-30YANTAI DONGCHANG CORRUGATED PIPE MFG CO LTD
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Patent Information

Application Number
CN202520791446.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-24
Publication Date
2026-01-30
Estimated Expiration
2035-04-24

AI Technical Summary

Technical Problem

The existing lining structure of metal corrugated pipes is installed once, which is inconvenient to recycle, complicated to loading and unloading, increases production difficulty and cost, and has insufficient resistance to extrusion.

Method used

Multiple sets of C-shaped elastic rings are embedded in the inner wall of the corrugated pipe, and the ease of loading and unloading is improved by limiting devices and operating parts, the resistance to extrusion is enhanced, and the processing difficulty and cost are reduced.

Benefits of technology

It improves the corrugated pipe's resistance to compression and its strength in use, simplifies loading and unloading operations, reduces production costs and recycling difficulties, and enhances its flexibility in use.

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Abstract

The utility model relates to the technical field of metal corrugated pipes, in particular to a high-strength metal corrugated pipe with embedded annular reinforcing ribs, which effectively improves the anti-extrusion capability of a corrugated pipe body, improves the use strength of the corrugated pipe body, improves the convenience of assembly and disassembly operation of a plurality of groups of C-shaped elastic rings, and reduces the processing cost and difficulty of the corrugated pipe body. Meanwhile, the recycling convenience of the C-shaped elastic ring is improved, and the use flexibility is improved; comprising connecting pipes and a corrugated pipe body, and the connecting pipes are arranged at the two ends of the corrugated pipe body; the connecting rings are arranged at the two ends of the connecting pipe, the multiple sets of C-shaped elastic rings are arranged on the inner side wall of the corrugated pipe body, the limiting devices are arranged between the connecting rings and used for limiting the bending limit and the telescopic limit of the corrugated pipe body, the ends of the C-shaped elastic rings are provided with the operating parts, and the operating parts are connected with the connecting pipes. The operation part is used for loading and unloading the C-shaped elastic ring.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of metal bellows, in particular to a high-strength metal bellows with embedded annular reinforcing ribs. BACKGROUND

[0002] As an important industrial component, metal bellows are widely used in aviation, aerospace, petroleum, chemical industry, power, construction and other fields. Its unique corrugated structure makes it have good flexibility, pressure resistance and sealing performance, which can effectively absorb the vibration and displacement in the pipeline system and protect the pipeline system from external stress.

[0003] For example, the patent with the authorization announcement number CN210687296U provides a metal bellows with a steel pipe reinforcement, which includes a steel pipe, a metal bellows, a screw nut, and a lining layer between the steel pipe and the metal bellows. A layer of lining steel pipe is added inside the metal bellows. When installing the metal bellows, the steel pipe is placed inside the metal bellows. The metal bellows and the steel pipe are connected from the outside to the inside with fasteners, and then the screw nut is tightened on the inside of the steel pipe.

[0004] However, the lining layer structure is one-time installation and is not convenient for recycling. The operation convenience of disassembly and assembly is poor, which increases the production difficulty and cost of the bellows. UTILITY MODEL CONTENTS

[0005] To solve the above technical problems, the utility model provides a high-strength metal bellows with embedded annular reinforcing ribs, which effectively improves the extrusion resistance of the bellows body, improves the use strength of the bellows body, improves the convenience of disassembly and assembly of multiple C-shaped elastic rings, reduces the processing cost and difficulty of the bellows body, and improves the convenience of recycling of C-shaped elastic rings and the flexibility of use.

[0006] The utility model discloses a high-strength metal bellows with embedded annular reinforcing ribs, which includes a connecting pipe and a bellows body. The connecting pipe is arranged at both ends of the bellows body. It also includes a limiting device, an operating part, a connecting ring and multiple C-shaped elastic rings. The connecting ring is arranged at both ends of the connecting pipe, and the multiple C-shaped elastic rings are arranged on the inner side wall of the bellows body. The limiting device is arranged between the connecting rings and is used to limit the bending and stretching limits of the bellows body. The operating part is arranged at the end of the C-shaped elastic ring and is used for disassembly and assembly operation of the C-shaped elastic ring. By embedding and installing the multiple C-shaped elastic rings on the inner side wall of the bellows body, the multiple C-shaped elastic rings support the inside of the bellows body, effectively improving the extrusion resistance of the bellows body and the use strength of the bellows body. By arranging the operating part, the convenience of disassembly and assembly of the multiple C-shaped elastic rings is improved, the processing cost and difficulty of the bellows body are reduced, the convenience of recycling of the C-shaped elastic rings is improved, and the flexibility of use is improved.

[0007] Preferably, the limiting device comprises a positioning assembly, a plurality of limiting holes, a plurality of crossbars, a plurality of first positioning members and a plurality of second positioning members, the plurality of limiting holes are arranged on the connecting ring, the two ends of the plurality of crossbars pass through the inside of the plurality of limiting holes, the plurality of first positioning members are respectively fixedly installed at the two ends of the plurality of crossbars, the plurality of second positioning members are respectively slidably installed on the plurality of crossbars, the positioning assembly is arranged on the plurality of second positioning members, and the positioning assembly is used for fixing the sliding of the plurality of second positioning members; the plurality of crossbars pass through the inside of the plurality of limiting holes, and then the connecting ring is limited through cooperation of the plurality of first positioning members and the plurality of second positioning members, so that the bending and stretching limit of the corrugated pipe body is limited, and the protection effect of the corrugated pipe body is improved.

[0008] Preferably, the positioning assembly comprises a plurality of jackscrews and a plurality of handwheels, the plurality of jackscrews are respectively matched and screwed on the plurality of second positioning members, and the plurality of handwheels are respectively installed at the ends of the plurality of jackscrews; the plurality of handwheels are operated to drive the plurality of jackscrews to rotate and move, so that the plurality of jackscrews fix the sliding of the second positioning members; and the spacing between the second positioning members and the first positioning members is adjusted, so that the convenience of controlling and adjusting the stretching limit of the corrugated pipe body is improved.

[0009] Preferably, the operation part comprises two protruding parts and two tool holes, the two protruding parts are arranged at the two ends of the C-shaped elastic ring, and the two tool holes are arranged on the two protruding parts; through the arrangement of the tool holes, the diameter of the C-shaped elastic ring can be conveniently shrunk by using a tool, and the convenience of the mounting and dismounting operation of the C-shaped elastic ring is improved.

[0010] Preferably, the operation part comprises two protruding parts and two tool holes, the two protruding parts are arranged at the two ends of the C-shaped elastic ring, and the two tool holes are arranged on the two protruding parts; through the arrangement of the tool holes, the diameter of the C-shaped elastic ring can be conveniently shrunk by using a tool, and the convenience of the mounting and dismounting operation of the C-shaped elastic ring is improved.

[0011] Preferably, the operation part comprises two protruding parts and two tool holes, the two protruding parts are arranged at the two ends of the C-shaped elastic ring, and the two tool holes are arranged on the two protruding parts; through the arrangement of the tool holes, the diameter of the C-shaped elastic ring can be conveniently shrunk by using a tool, and the convenience of the mounting and dismounting operation of the C-shaped elastic ring is improved.

[0012] Preferably, the operation part comprises two protruding parts and two tool holes, the two protruding parts are arranged at the two ends of the C-shaped elastic ring, and the two tool holes are arranged on the two protruding parts; through the arrangement of the tool holes, the diameter of the C-shaped elastic ring can be conveniently shrunk by using a tool, and the convenience of the mounting and dismounting operation of the C-shaped elastic ring is improved.

[0013] Compared with the prior art, the corrugated pipe body has the advantages that: the plurality of C-shaped elastic rings are embedded and installed on the inner side wall of the corrugated pipe body, at this time, the plurality of C-shaped elastic rings support the inside of the corrugated pipe body, thereby effectively improving the extrusion resistance of the corrugated pipe body and the use strength of the corrugated pipe body; the operation part is arranged, the mounting and dismounting operation of the plurality of C-shaped elastic rings is convenient, the processing cost and difficulty of the corrugated pipe body are reduced, the convenience of recycling the C-shaped elastic ring is improved, and the flexibility of use is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the axial measurement structure schematic view of the utility model;

[0015] Figure 2 is the axial measurement structure schematic view of the connection of the connecting pipe and the corrugated pipe body etc.;

[0016] Figure 3 is the axial measurement local structure schematic view of the connection of the jackscrew and the hand wheel etc.;

[0017] Figure 4 is the axial measurement local structure schematic view of the connection of the C type elastic ring and the convex part etc.;

[0018] Figure 5 is the axial measurement local structure schematic view of the connection of the hand wheel and the hexagonal recess etc.;

[0019] Figure 6 is the utility model's real object drawing.

[0020] Mark in the drawing: 1, connecting pipe;2, corrugated pipe body;3, connecting ring;4, C type elastic ring;5, limit hole;6, cross bar;7, first positioning piece;8, second positioning piece;9, jackscrew;10, hand wheel;11, convex part;12, tool hole;13, sleeve ring;14, flexible connecting piece;15, mounting hole;16, hexagonal recess. DETAILED DESCRIPTION

[0021] In order to facilitate understanding the utility model, the utility model will be described more fully below with reference to relevant drawings. The utility model can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Embodiment 1

[0023] As shown in Figures 1 to 6 The utility model discloses a high strength metal corrugated pipe of embedded annular reinforcing rib, including connecting pipe 1 and corrugated pipe body 2, connecting pipe 1 sets up at both ends of corrugated pipe body 2, still including limiting device, operating part, connecting ring 3 and multiple groups C type elastic ring 4, connecting ring 3 sets up at both ends of connecting pipe 1, multiple groups C type elastic ring 4 all sets up on the inner wall of corrugated pipe body 2, and the limiting device is used for limiting the bending and expansion limit of corrugated pipe body 2, and the operating part is used for C type elastic ring 4 dismounting operation;

[0024] As shown in Figure 1As shown, the limiting device includes a positioning assembly, a plurality of limiting holes 5, a plurality of cross bars 6, a plurality of first positioning members 7 and a plurality of second positioning members 8, the plurality of limiting holes 5 are arranged on the connecting ring 3, the two ends of the plurality of cross bars 6 pass through the inside of the plurality of limiting holes 5, the plurality of first positioning members 7 are respectively fixedly installed at the two ends of the plurality of cross bars 6, the plurality of second positioning members 8 are respectively slidably installed on the plurality of cross bars 6, the plurality of second positioning members 8 are provided with the positioning assembly, and the positioning assembly is used to fix the sliding of the plurality of second positioning members 8.

[0025] In the embodiment, a plurality of C-shaped elastic rings 4 are embedded and installed on the inner side wall of the bellows body 2, at this time, the plurality of C-shaped elastic rings 4 support the inside of the bellows body 2, thereby effectively improving the extrusion resistance of the bellows body 2 and the use strength of the bellows body 2, the operation part is arranged, the convenience of dismounting operation of the plurality of C-shaped elastic rings 4 is improved, the processing cost and difficulty of the bellows body 2 are reduced, the convenience of recycling of the C-shaped elastic ring 4 is improved, and the flexibility of use is improved.

[0026] Embodiment 2

[0027] Based on the embodiment 1, as shown in the figure, Figure 3 The utility model discloses a high -strength metal bellows of inlay annular reinforcing rib, the positioning assembly includes a plurality of top silk 9 and a plurality of hand wheel 10, a plurality of top silk 9 respectively cooperate screw in a plurality of second positioning members 8, a plurality of hand wheel 10 are installed at a plurality of top silk 9 end parts respectively;

[0028] As shown in the figure, Figure 4 The operation part includes two sets of convex parts 11 and two sets of tool holes 12, the two sets of convex parts 11 are arranged at the two ends of the C-shaped elastic ring 4, and the two sets of tool holes 12 are arranged on the two sets of convex parts 11;

[0029] As shown in the figure, Figure 1 It also includes a sleeve ring 13 and a flexible connecting piece 14, the sleeve ring 13 is sleeved on the outer side wall of the bellows body 2, the flexible connecting piece 14 is arranged on the sleeve ring 13, and the plurality of cross bars 6 pass through the inside of the flexible connecting piece 14;

[0030] As shown in the figure, Figure 1 It also includes a plurality of mounting holes 15, and the plurality of mounting holes 15 are arranged on the connecting ring 3;

[0031] As shown in the figure, Figure 5 It also includes a plurality of hexagonal recesses 16, and the plurality of hexagonal recesses 16 are respectively arranged on the outer side walls of the plurality of hand wheels 10;

[0032] In the embodiment, the plurality of cross bars 6 are inserted through the plurality of limiting holes 5, and then the connecting ring 3 is limited by the cooperation of the plurality of first positioning members 7 and the plurality of second positioning members 8, so as to limit the bending and stretching limit of the corrugated pipe body 2, improve the protection effect of the corrugated pipe body 2, rotate and move the plurality of jacks 10 to drive the plurality of jacks 9, and fix the sliding of the second positioning member 8, and adjust the spacing between the second positioning member 8 and the first positioning member 7, so as to improve the convenience of controlling and adjusting the stretching limit of the corrugated pipe body 2.

[0033] The high-strength metal corrugated pipe of the utility model, when working, inserts a plurality of C-shaped elastic rings 4 on the inner side wall of the corrugated pipe body 2, and at this time, the plurality of C-shaped elastic rings 4 support the inside of the corrugated pipe body 2.

[0034] The above is only the preferred embodiment of the utility model, and it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made without departing from the technical principles of the utility model, and these improvements and modifications should also be regarded as the protection range of the utility model.

Claims

1. A high-strength metal bellows with embedded annular stiffeners, comprising a connecting pipe (1) and a bellows body (2), the connecting pipe (1) being arranged at both ends of the bellows body (2); characterized in that, The limiting device, the operating part, the connecting ring (3) and the plurality of C-shaped elastic rings (4) are also included.

2. A high strength metal bellows with embedded annular stiffeners as claimed in claim 1, wherein, The limiting device includes a positioning assembly, a plurality of limiting holes (5), a plurality of cross bars (6), a plurality of first positioning members (7) and a plurality of second positioning members (8).

3. A high strength metal bellows with embedded annular stiffeners as claimed in claim 2, wherein, The positioning assembly includes a plurality of jackscrews (9) and a plurality of hand wheels (10).

4. A high strength metal bellows with embedded annular stiffeners as defined in claim 1, wherein, The operating part includes two protruding parts (11) and two tool holes (12).

5. A high strength metal bellows with embedded annular stiffeners as defined in claim 2, wherein, The sleeve ring (13) and the flexible connecting piece (14) are also included.

6. A high strength metal bellows with embedded annular stiffeners as defined in claim 1, wherein, The plurality of installation holes (15) are also included.

7. A high strength metal bellows with embedded annular stiffeners as defined in claim 3, wherein, The plurality of hexagonal recesses (16) are also included.

Citation Information

Patent Citations

  • Steel pipe reinforced metal corrugated pipe

    CN210687296U