Assembling structure of large-diameter steel corrugated pipe

Abstract

The utility model discloses an assembling structure of a large-diameter steel corrugated pipe, and belongs to the technical field of pipes. According to the structure, the rear side of one pipe section is inserted into a reducer union on the front side of the other pipe section, a pair of arc-shaped positioning pieces is inserted into a concave ring on the outer side of one pipe section from the two sides, four mounting holes in the pair of arc-shaped positioning pieces are in pairwise contact and are fixed, flanges of the arc-shaped positioning pieces are inserted into a notch in the front side of the other pipe section, and the two ends of the arc-shaped positioning pieces are fixed. The supporting ring is inserted into the other concave ring on the outer side of one pipe section and makes contact with the reducer union. A multi-pipe-section coaxial splicing structure is adopted, the paired arc-shaped positioning pieces are designed at the splicing positions, the butt joint process can be rapidly completed, and meanwhile the structural strength is guaranteed through the supporting rings in the splicing positions. In addition, the internal structure of the pipe section is improved, the reinforcing ribs and the positioning ring which play a supporting role are introduced, and a heat insulation structure is constructed, so that the performance of the pipe is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe materials, and particularly relates to an assembling structure of a large-diameter steel corrugated pipe. Background Art

[0002] A metal corrugated pipe is a pipe with a regular wavy shape on the outside. Common metal corrugated pipes include those made of carbon steel, stainless steel, steel lined with plastic, aluminum, etc. It is mainly used for non-concentric axial transmission with a very small bending radius, or irregular turning, expansion and contraction, or absorbing the thermal deformation of the pipeline, etc., or for connecting pipelines to pipelines or pipelines to equipment in occasions where it is not convenient to install fixed elbows.

[0003] The blank of a small-diameter metal corrugated pipe is a thin-walled stainless steel welded pipe processed into a waveform, which is flexible and has good temperature and pressure resistance. It is suitable for the transportation of various fluid media such as air, steam, various industrial gases, water, oil, medicines, etc., and plays an important role in the reciprocating movement of the pipe system, absorption of thermal expansion, absorption of vibration, and center adjustment of the piping. In addition to being used for the large-flux transportation of fluids, large-diameter metal corrugated pipes can also be used as building components for construction in fields such as bridges and culverts. Different from small-diameter metal corrugated pipes, large-diameter metal corrugated pipes have thicker walls and higher hardness, generally do not need to be flexible, and their corrugated configuration is mainly used to enhance the support strength of the pipe wall. Due to the structural differences, the assembly structure of large-diameter metal corrugated pipes is more complex, and it is difficult to assemble quickly through structures such as flanges and clamps. Moreover, the structural strength of the assembly site is usually lower than that of the middle section of the pipe body. Summary of the Invention

[0004] The technical problem to be solved by the utility model is that the current common assembling structure for large-diameter steel corrugated pipes is cumbersome and complex, and the structural strength of the assembling site is relatively low.

[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions:

[0006] An assembly structure of a large-diameter steel corrugated pipe, comprising a pipe section, corrugated protrusions, concave rings, reducing joints, ports, notches, arc-shaped positioning members, fixing plates, mounting holes, retaining edges, and support rings; corrugated protrusions are provided on the outer part of the pipe section, concave rings are provided between the corrugated protrusions, a reducing joint is provided on the front side of the pipe section, the front side of the reducing joint is a port, a notch is provided outside the port, a fixing plate is provided at the end of the arc-shaped positioning member, mounting holes are provided on the fixing plate, a retaining edge is provided on the rear side of the arc-shaped positioning member, the rear side of one pipe section is inserted into the reducing joint on the front side of another pipe section, the arc-shaped positioning members are arranged in pairs, and a pair of arc-shaped positioning members are inserted into a concave ring on the outer side of the said one pipe section from both sides, so that the four fixing plates in this pair of arc-shaped positioning members contact each other in pairs and the four mounting holes contact each other in pairs, and screws pass through the contacting mounting holes and are connected to nuts to fix this pair of arc-shaped positioning members, and the retaining edges on this pair of arc-shaped positioning members are inserted into the notch on the front side of the said another pipe section, and the support ring is inserted into another concave ring on the outer side of the said one pipe section, and the support ring is located inside the reducing joint on the front side of the said another pipe section and contacts the reducing joint.

[0007] Preferably, the pipe section includes an inner sleeve, outer reinforcing ribs, a middle sleeve, inner reinforcing ribs, gaps, and an outer sleeve; the inner sleeve, middle sleeve, and outer sleeve are coaxially arranged and the middle sleeve is located between the inner sleeve and the outer sleeve, the outer reinforcing ribs on the outer side of the inner sleeve contact the inner reinforcing ribs on the inner side of the middle sleeve, gaps are provided between the inner reinforcing ribs, and the corrugated protrusions are located on the outer sleeve.

[0008] Preferably, the corrugated protrusion includes a shell, an inner chamber is provided in the shell, and an arched wall is fixed in the inner chamber, and the arched wall contacts the shell.

[0009] Preferably, a vertical positioning ring is fixed between the middle sleeve and the arched wall.

[0010] Preferably, a conical positioning ring is fixed between the vertical positioning ring and the shell.

[0011] Preferably, a plurality of support rings are provided, and the plurality of support rings are located in different concave rings.

[0012] Preferably, a sealing ring is provided on the rear side of the said one pipe section, and the sealing ring contacts the reducing joint on the front side of the said another pipe section.

[0013] In the above structure, multiple pipe segments are coaxially spliced front and back. The corrugated protrusions and concave rings are their external structures. The rear part of the front pipe segment is inserted into the front part of the rear pipe segment and connected to its reduced-diameter joint. At this time, a pair of arc-shaped positioning members are inserted into the concave ring of the front pipe segment from both sides, and then fixing members such as screws and anchor rods are used to play a fixing role through the installation holes on the fixing plate, so that this pair of arc-shaped positioning members are effectively fixed in the above-mentioned concave ring. At the same time, the retaining edge on the arc-shaped positioning member hooks the notch on the outer side of the port of the above-mentioned reduced-diameter joint to play a splicing and fixing role. Further, a support ring is fixed in another concave ring of the front pipe segment, and this support ring is in contact with the above-mentioned reduced-diameter joint, so as to play a ring-shaped supporting effect inside the splicing part and strengthen the strength of the splicing site.

[0014] Further, the pipe segment can be designed into a three-level structure of an inner sleeve, a middle sleeve, and an outer sleeve. Outer reinforcing ribs and inner reinforcing ribs are respectively arranged outside the inner sleeve and inside the middle sleeve. The outer reinforcing ribs and the inner reinforcing ribs are connected, which not only play a supporting role but also form a gap. The outer reinforcing ribs and the inner reinforcing ribs can be made of heat-insulating materials, so as to play a heat-insulating effect on the inside of the pipe segment. At this time, in order to strengthen the strength of the corrugated protrusions on the outer sleeve, an arched wall can be arranged in the inner chamber of its shell to play a supporting role, and the connection between the arched wall and the middle sleeve is strengthened by a vertical positioning ring, and a conical positioning ring is arranged between the vertical positioning ring and the shell, effectively improving the structural strength.

[0015] The utility model discloses an assembling structure of a large-diameter steel corrugated pipe. This technological innovation adopts a structure of coaxially splicing multiple pipe segments, and a pair of arc-shaped positioning members are designed at the splicing position, which can quickly complete the docking process. At the same time, inside the splicing site, the structural strength is ensured by using a support ring. In addition, the utility model improves the internal structure of the pipe segment, not only introducing reinforcing ribs and positioning rings that play a supporting role, but also constructing a heat-insulating structure, thereby further improving the performance of the pipe material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the split structure diagram of the utility model;

[0017] Figure 2 is the assembled cross-sectional structure diagram of the utility model;

[0018] Figure 3 is the cross-sectional view of the middle part of the pipe segment;

[0019] Figure 4 is Figure 3 the enlarged view of position A in

[0020] Figure 5 is the cross-sectional view of the middle part of the pipe segment except for the inner sleeve and the outer reinforcing ribs;

[0021] Wherein:

[0022] 1. Pipe section 2. Corrugated protrusion 3. Concave ring 4. Reducing joint

[0023] 5. Port 6. Notch 7. Arc positioning member 8. Fixed plate

[0024] 9. Mounting hole 10. Flange 11. Support ring 12. Inner sleeve

[0025] 13. Outer reinforcing rib 14. Middle sleeve 15. Inner reinforcing rib 16. Gap

[0026] 17. Outer sleeve 18. Housing 19. Inner chamber 20. Arch-shaped wall

[0027] 21. Vertical positioning ring 22. Conical positioning ring Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application. In addition, as those of ordinary skill in the art can know, with the development of technology and the emergence of new scenarios, the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems.

[0029] In the description of the present application, it should be understood that unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present application belongs. In addition, any terms used are only for the purpose of describing specific embodiments, and are not intended to limit the present application.

[0030] In addition, for better illustration of the present application, numerous specific details are given in the following detailed implementation manners. Those skilled in the art should understand that the present application can be implemented without some specific details. In some instances, methods, means, elements, and circuits well-known to those skilled in the art are not described in detail so as to highlight the gist of the present application.

[0031] Embodiment 1

[0032] An assembling structure of a large-diameter steel corrugated pipe, see Figures 1 to 5, including pipe section 1, corrugated protrusion 2, concave ring 3, reducing joint 4, port 5, notch 6, arc-shaped positioning member 7, fixing plate 8, mounting hole 9, rib 10, support ring 11; there is a corrugated protrusion 2 on the outside of the pipe section 1, there is a concave ring 3 between the corrugated protrusions 2, a reducing joint 4 is provided on the front side of the pipe section 1, the front side of the reducing joint 4 is the port 5, a notch 6 is provided outside the port 5, a fixing plate 8 is provided at the end of the arc-shaped positioning member 7, mounting holes 9 are provided on the fixing plate 8, a rib 10 is provided on the rear side of the arc-shaped positioning member 7, the rear side of one pipe section 1 is inserted into the reducing joint 4 on the front side of another pipe section 1, the arc-shaped positioning members 7 are arranged in pairs, and a pair of arc-shaped positioning members 7 are inserted into a concave ring 3 on the outside of the said one pipe section 1 from both sides, so that the four fixing plates 8 in this pair of arc-shaped positioning members 7 are in contact with each other in pairs and the four mounting holes 9 are in contact with each other in pairs, and screws pass through the contacting mounting holes 9 and are connected with nuts to fix this pair of arc-shaped positioning members 7, and the ribs 10 on this pair of arc-shaped positioning members 7 are inserted into the notch 6 on the front side of the said another pipe section 1, and the support ring 11 is inserted into another concave ring 3 on the outside of the said one pipe section 1, and this support ring 11 is located inside the reducing joint 4 on the front side of the said another pipe section 1 and is in contact with this reducing joint 4. In the above structure, multiple pipe sections 1 are spliced coaxially before and after, the corrugated protrusions 2 and the concave rings 3 are its external structures, the rear part of the front pipe section 1 is inserted into the front part of the rear pipe section 1 and is connected to its reducing joint 4. At this time, the paired arc-shaped positioning members 7 are inserted into the concave ring 3 of the front pipe section 1 from both sides, and then fixing members such as screws and anchor rods are used to play a fixing role through the mounting holes 9 on the fixing plate 8, so that this pair of arc-shaped positioning members 7 are effectively fixed in the above concave ring 3. At the same time, the rib 10 on the arc-shaped positioning member 7 hooks the notch 6 outside the port 5 of the said reducing joint 4 to play a role in splicing and fixing. Further, a support ring 11 is fixed in another concave ring 3 of the front pipe section 1 and this support ring 11 is in contact with the said reducing joint 4, so as to play a ring-shaped supporting effect inside the splicing part and strengthen the strength of the splicing site.

[0033] Embodiment 2

[0034] An assembling structure of a large-diameter steel corrugated pipe, see Figures 1 to 5, including pipe section 1, corrugated protrusion 2, concave ring 3, reducer joint 4, port 5, notch 6, arc-shaped positioning member 7, fixing plate 8, mounting hole 9, edge 10, support ring 11; there is a corrugated protrusion 2 on the outside of the pipe section 1, there is a concave ring 3 between the corrugated protrusions 2, a reducer joint 4 is provided on the front side of the pipe section 1, the front side of the reducer joint 4 is the port 5, a notch 6 is provided outside the port 5, a fixing plate 8 is provided at the end of the arc-shaped positioning member 7, a mounting hole 9 is provided on the fixing plate 8, an edge 10 is provided on the rear side of the arc-shaped positioning member 7, the rear side of one pipe section 1 is inserted into the reducer joint 4 on the front side of another pipe section 1, the arc-shaped positioning members 7 are arranged in pairs, and a pair of arc-shaped positioning members 7 are inserted into a concave ring 3 on the outside of the said one pipe section 1 from both sides, so that the four fixing plates 8 in this pair of arc-shaped positioning members 7 are in contact with each other in pairs, and the four mounting holes 9 are in contact with each other in pairs, and screws pass through the contacting mounting holes 9 and are connected with nuts to fix this pair of arc-shaped positioning members 7, and the edges 10 on this pair of arc-shaped positioning members 7 are inserted into the notch 6 on the front side of the said another pipe section 1, and the support ring 11 is inserted into another concave ring 3 on the outside of the said one pipe section 1, and the support ring 11 is located inside the reducer joint 4 on the front side of the said another pipe section 1 and is in contact with the reducer joint 4. The pipe section 1 includes an inner sleeve 12, an outer reinforcing rib 13, a middle sleeve 14, an inner reinforcing rib 15, a gap 16, and an outer sleeve 17; the inner sleeve 12, the middle sleeve 14, and the outer sleeve 17 are coaxially arranged and the middle sleeve 14 is located between the inner sleeve 12 and the outer sleeve 17, the outer reinforcing rib 13 on the outside of the inner sleeve 12 is in contact with the inner reinforcing rib 15 on the inside of the middle sleeve 14, and a gap 16 is provided between the inner reinforcing ribs 15, and the corrugated protrusion 2 is located on the outer sleeve 17. The corrugated protrusion 2 includes a housing 18, an inner chamber 19 is provided in the housing 18, an arched wall 20 is fixed in the inner chamber 19, and the arched wall 20 is in contact with the housing 18. A vertical positioning ring 21 is fixed between the middle sleeve 14 and the arched wall 20. A conical positioning ring 22 is fixed between the vertical positioning ring 21 and the housing 18. There are multiple support rings 11, and the multiple support rings 11 are located in different concave rings 3. A sealing ring is provided on the rear side of the said one pipe section 1, and the sealing ring is in contact with the reducer joint 4 on the front side of the said another pipe section 1. In this embodiment, the pipe section 1 is designed as a three-level structure of an inner sleeve 12, a middle sleeve 14, and an outer sleeve 17. The outer reinforcing rib 13 and the inner reinforcing rib 15 are respectively arranged on the outside of the inner sleeve 12 and inside the middle sleeve 14, and the outer reinforcing rib 13 and the inner reinforcing rib 15 are in contact with each other, which not only plays a supporting role but also forms a gap 16. The outer reinforcing rib 13 and the inner reinforcing rib 15 can be made of heat-insulating materials, so as to achieve a heat preservation effect on the inside of the pipe section 1. At this time, in order to strengthen the strength of the corrugated protrusion 2 on the outer sleeve 17, an arched wall 20 is provided in the inner chamber 19 of its housing 18 to play a supporting role, and the connection between the arched wall 20 and the middle sleeve 14 is strengthened by the vertical positioning ring 21, and a conical positioning ring 22 is provided between the vertical positioning ring 21 and the housing 18, effectively improving the structural strength.

[0035] In summary, after reading this detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure may be presented by way of example only and may not be limiting. Although not explicitly stated herein, those skilled in the art can understand that this application is intended to encompass various reasonable changes, improvements, and modifications to the embodiments. These changes, improvements, and modifications are intended to be proposed by this application and are within the spirit and scope of the exemplary embodiments of this application.

[0036] It should be understood that in the foregoing description of the embodiments of this application, for the purpose of helping to understand a feature and for the purpose of simplifying this application, this application combines various features in a single embodiment, drawing, or its description. However, this does not mean that the combination of these features is necessary, and it is entirely possible for those skilled in the art, when reading this application, to extract some of these features as separate embodiments for understanding.

[0037] It should be understood that the embodiments disclosed herein are illustrative of the principles of this application. Other modified embodiments are also within the scope of this application. The embodiments disclosed herein are merely examples and not limitations, and the embodiments of this application are not limited to the embodiments precisely described above.

Claims

1. An assembling structure of a large-diameter steel corrugated pipe, characterized in that It includes a pipe section (1), corrugated protrusions (2), concave rings (3), reducing joints (4), ports (5), notches (6), arc-shaped positioning members (7), fixing plates (8), mounting holes (9), retaining edges (10), and support rings (11); there are corrugated protrusions (2) on the outer part of the pipe section (1), concave rings (3) are provided between the corrugated protrusions (2) and the corrugated protrusions (2), a reducing joint (4) is provided on the front side of the pipe section (1), the front side of the reducing joint (4) is a port (5), a notch (6) is provided outside the port (5), a fixing plate (8) is provided at the end of the arc-shaped positioning member (7), mounting holes (9) are provided on the fixing plate (8), a retaining edge (10) is provided on the rear side of the arc-shaped positioning member (7), the rear side of one pipe section (1) is inserted into the reducing joint (4) on the front side of another pipe section (1), the arc-shaped positioning members (7) are arranged in pairs, and a pair of arc-shaped positioning members (7) are inserted into a concave ring (3) on the outer side of the said one pipe section (1) from both sides, so that the four fixing plates (8) in this pair of arc-shaped positioning members (7) are in contact with each other in pairs, and the four mounting holes (9) are in contact with each other in pairs. Screws pass through the contacting mounting holes (9) and are connected with nuts to fix this pair of arc-shaped positioning members (7), and the retaining edges (10) on this pair of arc-shaped positioning members (7) are inserted into the notch (6) on the front side of the said another pipe section (1), and the support ring (11) is inserted into another concave ring (3) on the outer side of the said one pipe section (1), and the support ring (11) is located inside the reducing joint (4) on the front side of the said another pipe section (1) and is in contact with the reducing joint (4).

2. The assembling structure of a large-diameter steel corrugated pipe according to claim 1, characterized in that, The pipe section (1) includes an inner sleeve (12), an outer reinforcing rib (13), a middle sleeve (14), an inner reinforcing rib (15), a gap (16), and an outer sleeve (17); the inner sleeve (12), the middle sleeve (14), and the outer sleeve (17) are coaxially arranged and the middle sleeve (14) is located between the inner sleeve (12) and the outer sleeve (17). The outer reinforcing rib (13) on the outer side of the inner sleeve (12) is in contact with the inner reinforcing rib (15) on the inner side of the middle sleeve (14). A gap (16) is provided between the inner reinforcing ribs (15) and the inner reinforcing ribs (15), and the corrugated protrusions (2) are located on the outer sleeve (17).

3. The assembling structure of a large-diameter steel corrugated pipe according to claim 2, characterized in that, The corrugated protrusions (2) include a housing (18), an inner chamber (19) is provided in the housing (18), and an arched wall (20) is fixed in the inner chamber (19), and the arched wall (20) is in contact with the housing (18).

4. The assembled structure of a large-diameter steel corrugated pipe according to claim 3, characterized in that A vertical positioning ring (21) is fixed between the middle sleeve (14) and the arched wall (20).

5. The assembled structure of a large-diameter steel corrugated pipe according to claim 4, characterized in that, A conical positioning ring (22) is fixed between the vertical positioning ring (21) and the housing (18).

6. The assembling structure of a large-diameter steel corrugated pipe according to claim 5, characterized in that, There are multiple support rings (11), and the multiple support rings (11) are located in different concave rings (3).

7. The assembled structure of a large-diameter steel corrugated pipe according to claim 6, characterized in that, A sealing ring is provided on the rear side of the said one pipe section (1), and the sealing ring is in contact with the reducing joint (4) on the front side of the said another pipe section (1).

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