CN211525812U - Bellows expansion joint - Google Patents

Abstract

The utility model discloses a bellows expansion joint relates to expansion joint technical field, for solving current corrugated pipe compensator fragile, compensates the poor problem of effect. The corrugated pipe comprises a corrugated pipe body and is characterized in that a first protection pipe is arranged on the outer wall of the corrugated pipe body, a second protection pipe is arranged above the first protection pipe, second supports are arranged on two sides of the second protection pipe, a second supporting rod is arranged inside the second supports, first supports are arranged on two sides of the first protection pipe, a first supporting rod is arranged inside the first supports, a second connecting pipe is arranged above the corrugated pipe, a second flange plate is arranged above the second connecting pipe, a first connecting pipe is arranged below the corrugated pipe, a first flange plate is arranged below the first connecting pipe, a guide pipe is arranged inside the corrugated pipe, a convex block is arranged on the outer wall of one end of the guide pipe, and connecting seats are arranged on the outer walls of the second flange plate, the first flange plate, the second protection pipe and the first protection pipe.

Description

Bellows expansion joint

Technical Field

The utility model relates to an expansion joint technical field specifically is a bellows expansion joint.

Background

The expansion joint of the corrugated pipe, an expansion joint made of metal corrugated pipe, it can be flexible along the pipeline axial direction, can compensate the pipeline deformation that the temperature difference or mechanical oscillation cause, apply to the pipeline transportation fields such as chemical industry, metallurgy extensively. Expansion joints are also conventionally called compensators or expansion joints. It is composed of bellows, end pipe, support, flange and pipe. The expansion joint is a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses due to temperature differences and mechanical vibrations. The effective telescopic deformation of the working body corrugated pipe is utilized to absorb the dimensional change of pipelines, conduits, containers and the like caused by expansion and contraction due to heat and the like or compensate the axial, transverse and angular displacement of the pipelines, the conduits, the containers and the like. The compensator is arranged on the pipeline to compensate the thermal extension of the pipeline, thereby reducing the stress of the pipeline wall and the acting force acting on the valve member or the bracket structure.

The existing corrugated pipe compensator is easy to damage and has poor compensation effect; thus, the existing requirements are not met, and a bellows expansion joint is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bellows expansion joint to solve the current corrugated expansion ware fragile that proposes among the above-mentioned background art, compensate the poor problem of effect.

In order to achieve the above object, the utility model provides a following technical scheme: a corrugated pipe expansion joint comprises a corrugated pipe, wherein a first protection pipe is arranged on the outer wall of the corrugated pipe, a second protection pipe is arranged above the first protection pipe, second supports are arranged on two sides of the second protection pipe, a second support rod is arranged inside the second support, first supports are arranged on two sides of the first protection pipe, a first support rod is arranged inside the first support, a second connecting pipe is arranged above the corrugated pipe, a second flange is arranged above the second connecting pipe, a first connecting pipe is arranged below the corrugated pipe, a first flange is arranged below the first connecting pipe, a guide pipe is arranged inside the corrugated pipe, a convex block is arranged on the outer wall of one end of the guide pipe, connecting seats are arranged on the outer walls of the second flange, the first flange, the second protection pipe and the first protection pipe, and a sleeve is arranged inside the connecting seats, one side of the sleeve is provided with a supporting outer rod, and one side of the supporting outer rod is provided with a supporting inner rod.

Preferably, the first supporting rod is fixedly connected with the second supporting rod through a positioning bolt.

Preferably, the first flange plate and the second flange plate are internally provided with threaded holes.

Preferably, the inner wall of the corrugated pipe is provided with a limit ring.

Preferably, the sleeve is fixedly connected with the connecting seat through a fixing bolt.

Preferably, the inner support rods are fixedly connected through butterfly bolts.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting of pipe, be convenient for remove the inside pipe of expansion joint to other expansion joints smoothly in, time saving and labor saving, lug and spacing ring's cooperation, spacing effect has been played, setting through first pillar and second pillar, the effect of protection has been played to the bellows, it is more firm that first branch passes through positioning bolt with second branch and is connected, improve the quality and the safety and stability degree of expansion joint, make the life-span of bellows expansion joint obtain the extension, all set up the screw hole through the inside at first ring flange and second ring flange, a screw is used for installing, be convenient for connect between the pipeline.

2. Utilize fixing bolt and connecting seat fixed connection through the sleeve, improve telescopic steadiness, through the setting of pole in supporting the outer pole and supporting, the expansion joint of being convenient for is fixed after adjusting, through butterfly bolt's setting, easy installation, and convenient to detach, through the bolt rotation between the pole in the support, has improved the expansion joint and has carried out the accuracy of angular displacement to different angles, improves compensation efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 is a schematic view of the enlarged structure of the part A of the present invention;

in the figure: 1. a bellows; 2. a first protective tube; 3. a second support; 4. a first support; 5. a second support bar; 6. a first support bar; 7. positioning the bolt; 8. a first flange plate; 9. a second flange plate; 10. a threaded hole; 11. a second protective tube; 12. a connecting seat; 13. a sleeve; 14. fixing the bolt; 15. a support outer bar; 16. supporting the inner rod; 17. a butterfly bolt; 18. a limiting ring; 19. a conduit; 20. a bump; 21. a second adapter tube; 22. a first adapter tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a corrugated pipe expansion joint comprises a corrugated pipe 1, a first protection pipe 2 is arranged on the outer wall of the corrugated pipe 1, a second protection pipe 11 is arranged above the first protection pipe 2, the corrugated pipe 1 is protected, the quality and the safety and stability degree of the expansion joint are improved, the service life of the expansion joint of the corrugated pipe 1 is prolonged, second supports 3 are arranged on two sides of the second protection pipe 11, second supporting rods 5 are arranged inside the second supports 3, first supports 4 are arranged on two sides of the first protection pipe 2, first supporting rods 6 are arranged inside the first supports 4, a second connecting pipe 21 is arranged above the corrugated pipe 1, a second flange 9 is arranged above the second connecting pipe 21, a first connecting pipe 22 is arranged below the corrugated pipe 1, a first flange 8 is arranged below the first connecting pipe 22, a guide pipe 19 is arranged inside the corrugated pipe 1, and a convex block 20 is arranged on the outer wall at one end of the guide pipe 19, the outer walls of the second flange plate 9, the first flange plate 8, the second protective pipe 11 and the first protective pipe 2 are all provided with connecting seats 12, sleeves 13 are arranged inside the connecting seats 12, one sides of the sleeves 13 are provided with supporting outer rods 15, and one sides of the supporting outer rods 15 are provided with supporting inner rods 16.

Furthermore, the first support rod 6 is fixedly connected with the second support rod 5 through the positioning bolt 7, so that the first support rod 6 is more firmly connected with the second support rod 5, and the corrugated pipe 1 is protected.

Further, the first flange plate 8 and the second flange plate 9 are internally provided with threaded holes 10, and the threaded holes 10 are used for installing screws so as to facilitate connection between pipelines.

Further, the inner wall of the corrugated pipe 1 is provided with a limiting ring 18, and the limiting ring 18 plays a limiting role.

Further, sleeve 13 is fixedly connected with connecting seat 12 through fixing bolt 14, improves the steadiness of sleeve 13.

Further, the inner support rod 16 is fixedly connected through the butterfly bolt 17, and the butterfly bolt 17 is easy to install and convenient to detach.

The working principle is as follows: when the corrugated pipe expansion joint is used, the first protection pipe 2 and the second protection pipe 11 are installed on the outer wall of the expansion joint of the corrugated pipe 1, the corrugated pipe 1 is protected by the first protection pipe 2 and the second protection pipe 11, the first support rod 6 and the second support rod 5 are connected more firmly through the positioning bolts 7, the quality and the safety and stability degree of the expansion joint are improved, the service life of the expansion joint of the corrugated pipe 1 is prolonged, the threaded holes 10 are formed in the first flange 8 and the second flange 9 and used for installing screws, the connection between pipelines is facilitated, the guide pipe 19 in the expansion joint is conveniently and smoothly moved into other expansion joints through the arrangement of the guide pipe 19, time and labor are saved, the lug 20 is matched with the limiting ring 18 to play a limiting role, the sleeve 13 is fixedly connected with the connecting seat 12 through the fixing bolt 14, the stability of the sleeve 13 is improved, the outer support rod 15 and the inner support rod 16 are arranged, the expansion joint is convenient to fix after being adjusted, the butterfly bolt 17 is arranged, the installation is easy, the disassembly is convenient, the support inner rod 16 rotates through the bolt, the accuracy of angular displacement of the expansion joint to different angles is improved, and the compensation efficiency is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A bellows expansion joint comprising a bellows (1), characterized in that: a first protection pipe (2) is arranged on the outer wall of the corrugated pipe (1), a second protection pipe (11) is arranged above the first protection pipe (2), second supports (3) are arranged on two sides of the second protection pipe (11), a second support rod (5) is arranged inside the second support (3), first supports (4) are arranged on two sides of the first protection pipe (2), a first support rod (6) is arranged inside the first support (4), a second connecting pipe (21) is arranged above the corrugated pipe (1), a second flange (9) is arranged above the second connecting pipe (21), a first connecting pipe (22) is arranged below the corrugated pipe (1), a first flange (8) is arranged below the first connecting pipe (22), a guide pipe (19) is arranged inside the corrugated pipe (1), and a convex block (20) is arranged on the outer wall of one end of the guide pipe (19), all be provided with connecting seat (12) on the outer wall of second ring flange (9), first ring flange (8), second pillar (11) and first pillar (2), the inside of connecting seat (12) is provided with sleeve (13), one side of sleeve (13) is provided with supports outer pole (15), one side of supporting outer pole (15) is provided with supports interior pole (16).

2. A bellows expansion joint according to claim 1, wherein: the first supporting rod (6) is fixedly connected with the second supporting rod (5) through a positioning bolt (7).

3. A bellows expansion joint according to claim 1, wherein: and threaded holes (10) are formed in the first flange plate (8) and the second flange plate (9).

4. A bellows expansion joint according to claim 1, wherein: the inner wall of the corrugated pipe (1) is provided with a limiting ring (18).

5. A bellows expansion joint according to claim 1, wherein: the sleeve (13) is fixedly connected with the connecting seat (12) through a fixing bolt (14).

6. A bellows expansion joint according to claim 1, wherein: the inner support rods (16) are fixedly connected through butterfly bolts (17).

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