CN220668747U - Transverse compensation metal corrugated expansion joint with limiting function - Google Patents

Abstract

The application discloses lateral compensation metal corrugated expansion joint with limiting function belongs to expansion joint technical field. The utility model provides a horizontal compensation metal bellows expansion joint with limit function, includes the bellows, and the both ends of bellows are fixedly connected with first ring spare and second link respectively, and the surface of first ring spare and second link all is provided with the restriction ring, and second link and a set of restriction ring fixed connection, and another set of restriction ring and first ring spare sliding connection, the inside of bellows is provided with interior siphunculus, and the one end and the second link fixed connection of interior siphunculus, and the other end and the first ring spare sliding connection of interior siphunculus pass through limit part; through being provided with spacing portion, interior siphunculus slides in bellows and first ring piece inside, and then reaches compensation pipeline thermal expansion and shrink that arouses under the temperature variation, makes high temperature high pressure medium flow in interior siphunculus simultaneously, avoids contacting the bellows and strikeeing the bellows, makes the bellows obtain the protection, increase of service life.

Description

Transverse compensation metal corrugated expansion joint with limiting function

Technical Field

The application relates to the technical field of expansion joints, in particular to a transverse compensation metal corrugated expansion joint with a limiting function.

Background

A metal bellows expansion joint is a device used in a pipe system, also known as a metal expansion joint, a metal compensator or a metal expansion joint. It is composed of a plurality of layers of corrugated sheets, and is generally manufactured by stainless steel or other high-temperature-resistant and pressure-resistant metal materials;

the prior art publication No. CN213299214U provides a metal bellows expansion joint with a limiting device, the device comprises a connecting part and a corrugated part, the inner side of the connecting part is connected with an inner pipe, a first stop block and a second stop block are respectively arranged on the outer sides of the connecting parts at two ends of the metal bellows, and the ends, far away from the corrugated part, of the first stop block and the second stop block are respectively welded with the inner pipe; the outer side of the metal corrugated pipe is sleeved with a limiting cylinder, two ends of the limiting cylinder are respectively a right-angle end and a limiting end, the first stop block is provided with a spigot, the right-angle end of the limiting cylinder is welded on the spigot, the limiting end is arc-shaped, the outer side of the second stop block and the outer side of the inner pipe are in clearance fit with the limiting cylinder, the inner side of the limiting cylinder is provided with a rubber pad, and the inner side of the rubber pad is arc-shaped;

the above prior art scheme has the beneficial effect of improving the safety of equipment by being provided with the connecting part and the corrugated part, but still has the following defects:

in the prior art, the corrugated pipe component is directly contacted with flowing medium, so that the corrugated pipe component is continuously flushed by the flowing medium at high temperature and high pressure in use, and the corrugated pipe is preferentially deformed from the input end after long-time accumulation, thereby affecting the flexibility and the shell elasticity of the corrugated pipe and increasing the failure rate of the corrugated pipe.

In view of this, we propose a lateral compensation metal bellows expansion joint with a limiting function.

Disclosure of Invention

The present application is directed to a lateral compensation metal bellows expansion joint with a limiting function, so as to solve the problem set forth in the above background art.

The application provides a lateral compensation metal ripple expansion joint with limit function adopts following technical scheme:

a transversely compensating metal bellows expansion joint with limit function comprises

The corrugated pipe, the both ends of bellows are fixedly connected with first ring spare and second ring spare respectively, and the surface of first ring spare and second ring spare all is provided with the restriction ring, second ring spare and a set of restriction ring fixed connection, and another set of restriction ring and first ring spare sliding connection, the inside of bellows is provided with interior siphunculus, and the one end and the second ring spare fixed connection of interior siphunculus, the other end of interior siphunculus passes through spacing portion and first ring spare sliding connection, spacing portion includes slip ring, gag lever post and spring for supplementary bellows's expansion compensation.

By adopting the technical scheme, the device can carry out telescopic compensation through the cooperation of the sliding ring, the limiting rod and the spring, and can only carry out transverse compensation under the action of the curved mask.

Optionally, sliding ring and interior siphunculus fixed connection, the spout that cooperatees with the sliding ring has been seted up to first ring spare inside, and sliding ring is at the inside sliding connection of spout, multiunit spacing groove has all been seted up to the both sides of spout, and sliding connection has the gag lever post in the spacing groove, every group the one end sliding ring fixed connection of gag lever post, and all fixedly connected with spring between the other end of gag lever post and the spacing inslot wall.

Through adopting above-mentioned technical scheme, the inner tube has restricted sliding distance through the cooperation of slip ring and spout when the inside slip of first ring spare.

Optionally, one end of the inner through pipe, which is close to the first ring piece, is fixedly connected with a sealing ring, and the sealing ring is in sliding connection with the first ring piece.

By adopting the technical scheme, the tightness of the device is improved, and the possibility of leakage between the inner through pipe and the first ring piece is reduced.

Optionally, two sets of opposite sides of the limiting ring are provided with sliding grooves, curved surface covers are slidably connected in the sliding grooves, two ends of each curved surface cover are provided with a first screw groove, an anchor bolt is connected with the first screw groove through internal threads, and the two sets of anchor bolts are respectively connected with the limiting ring through threads.

By adopting the technical scheme, the bending compensation of the device to other directions is limited by the matching of the curved mask and the limiting ring, so that the abrasion of the device is reduced, and the service life is prolonged.

Alternatively, four groups of second screw grooves are uniformly formed on the surfaces of the two groups of limiting rings, and the second screw grooves are matched with the anchor bolts.

Through adopting above-mentioned technical scheme, the curved surface cover can be according to the scene circumstances through the sliding tray setting in each position of bellows, can be used for sunshade and keep out rain also can be used for supporting the protection, improves the suitability.

Optionally, rubber pads are fixedly connected to two sides of the sliding ring, and a plurality of groups of holes matched with the limiting rods are formed in the surfaces of the rubber pads.

By adopting the technical scheme, the sliding ring is additionally buffered when being contacted with the first ring piece through sliding, so that the service life of the sliding ring is prolonged.

In summary, the present application includes at least one of the following beneficial technical effects:

1. through the arrangement of the limiting part, under the cooperation of the sliding ring, the limiting rod and the spring, the inner through pipe slides in the corrugated pipe and the first ring piece, so that the thermal expansion and contraction caused by temperature change of the compensation pipeline are achieved, meanwhile, a high-temperature high-pressure medium flows in the inner through pipe, the corrugated pipe is prevented from being contacted and impacted, the corrugated pipe is protected, and the service life of the device is prolonged;

2. through being provided with interior siphunculus, under the cooperation of collar and crab-bolt, restrict the flexible compensation direction of the device, reduced crooked wearing and tearing, the curved surface cover can protect the bellows under the circumstances that does not influence the bellows heat dissipation through changing the position moreover.

Drawings

FIG. 1 is a schematic perspective view of the present application;

FIG. 2 is a schematic cross-sectional view of a three-dimensional structure of the present application;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 2 in the present application;

FIG. 4 is a schematic perspective view of the inner tube, sliding ring, sealing ring and rubber gasket in the present application;

the reference numerals in the figures illustrate: 1. a bellows; 2. an inner tube; 3. a first ring member; 4. a confinement ring; 5. a curved mask; 6. a slip ring; 7. a limit rod; 8. a spring; 9. a seal ring; 10. a rubber pad; 11. an anchor bolt; 12. a second ring member; 13. a limit groove; 15. a sliding groove.

Detailed Description

The present application will be described in further detail with reference to the drawings

Referring to fig. 1 and 2, the application provides a lateral compensation metal ripple expansion joint with limit function, including bellows 1, the both ends of bellows 1 are fixedly connected with first ring spare 3 and second ring spare 12 respectively, and the surface of first ring spare 3 and second ring spare 12 all is provided with restriction ring 4, second ring spare 12 and a set of restriction ring 4 fixed connection, and another set of restriction ring 4 and first ring spare 3 sliding connection, play restriction curved face piece 5 position effect, the inside of bellows 1 is provided with interior siphunculus 2, and the one end and the second ring spare 12 fixed connection of interior siphunculus 2, the connected mode can be the welding, the one end of interior siphunculus 2 is the acute angle design, the medium flow of being convenient for, the other end of interior siphunculus 2 passes through spacing portion and first ring spare 3 sliding connection.

Referring to fig. 2, fig. 3 and fig. 4, the limiting part provided by the application, sliding ring 6 and inner tube 2 fixed connection, the spout that cooperatees with sliding ring 6 is offered to first ring spare 3 inside, and sliding ring 6 is at the inside sliding connection of spout, both sides of sliding ring 6 all fixedly connected with rubber pad 10, the effect of start buffer reduces the pressure of sliding ring 6 and first ring spare 3 contact, the multiunit hole with gag lever post 7 matched with is all offered on the surface of rubber pad 10, make the one end of gag lever post 7 run through rubber pad 10 and sliding ring 6 fixed connection, multiunit spacing groove 13 has all been offered to the both sides of spout, and sliding connection has gag lever post 7 in spacing groove 13, all fixedly connected with spring 8 between the other end of gag lever post 7 and the spacing groove 13 inner wall, reduce pressure through spring 8's elasticity, and can make sliding ring 6 reset.

Referring to fig. 1 and 2, the curved mask 5 provided by the application has the advantages that the sliding grooves 15 are formed in one sides of the two groups of limiting rings 4 opposite to each other, the curved mask 5 is connected in the sliding grooves 15 in a sliding manner, the curved mask 5 can be adjusted in the opposite direction to the corrugated tube 1 in a sliding manner, the first spiral grooves are formed in two ends of the curved mask 5, the first spiral grooves are rotationally connected with the anchor bolts 11 through threads, the two groups of anchor bolts 11 are respectively connected with the limiting rings 4 through the rotation of the threads, the curved mask 5 and the limiting rings 4 are firmly locked, the surfaces of the two groups of limiting rings 4 are uniformly provided with the second four groups of spiral grooves, the second spiral grooves are matched with the anchor bolts 11, and four positions capable of locking the curved mask 5 are displayed.

The implementation principle of the transverse compensation metal corrugated expansion joint with the limiting function is as follows:

firstly, when a metal bellows expansion joint expands and contracts, the bellows 1 starts to push the first ring piece 3 to slide outside the inner through pipe 2 for transverse compensation, and when the first ring piece slides, the sliding ring 6 drives the limiting rod 7 to slide simultaneously, the transverse compensation distance is controlled by the size of the sliding groove, the compensation distance is prevented from exceeding the design working range, and damage caused by excessive expansion or excessive compression is avoided;

during installation, the curved mask 5 is adjusted to rotate in the sliding groove 15 according to the site condition, the relative positions of the curved mask 5 and the corrugated pipe 1 are adjusted, and the area of the corrugated pipe 1 can be protected or supported while the transverse compensation direction of the device is controlled.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (6)

1. Transverse compensation metal corrugated expansion joint with limit function, which is characterized by comprising:

bellows (1), the both ends of bellows (1) are first ring spare (3) and second ring spare (12) of fixedly connected with respectively, and the surface of first ring spare (3) and second ring spare (12) all is provided with restriction ring (4), second ring spare (12) and a set of restriction ring (4) fixed connection, and another set of restriction ring (4) and first ring spare (3) sliding connection, the inside of bellows (1) is provided with interior siphunculus (2), and the one end and the second ring spare (12) fixed connection of interior siphunculus (2), the other end of interior siphunculus (2) is through spacing portion and first ring spare (3) sliding connection, spacing portion includes slip ring (6), gag lever post (7) and spring (8) for the flexible compensation of supplementary bellows (1).

2. The transversely compensating metal bellows expansion joint with limiting function according to claim 1, wherein: the sliding ring (6) is fixedly connected with the inner through pipe (2), a sliding groove matched with the sliding ring (6) is formed in the first ring piece (3), the sliding ring (6) is in sliding connection with the sliding groove, a plurality of groups of limiting grooves (13) are formed in two sides of the sliding groove, limiting rods (7) are connected in the limiting grooves (13) in a sliding mode, one end of each limiting rod (7) is fixedly connected with the sliding ring (6), and springs (8) are fixedly connected between the other end of each limiting rod (7) and the inner wall of each limiting groove (13).

3. The transversely compensating metal bellows expansion joint with limiting function according to claim 1, wherein: one end of the inner through pipe (2) close to the first ring piece (3) is fixedly connected with a sealing ring (9), and the sealing ring (9) is in sliding connection with the first ring piece (3).

4. The transversely compensating metal bellows expansion joint with limiting function according to claim 1, wherein: the two groups of limiting rings (4) are provided with sliding grooves (15) on one side opposite to each other, curved surface covers (5) are connected in the sliding grooves (15) in a sliding mode, first screw grooves are formed in two ends of the curved surface covers (5), anchor bolts (11) are connected with the first screw grooves in an internal threaded mode, and the two groups of anchor bolts (11) are connected with the limiting rings (4) through threads respectively.

5. The transversely compensating metal bellows expansion joint with limiting function according to claim 1, wherein: four groups of second screw grooves are uniformly formed in the surfaces of the two groups of limiting rings (4), and the second screw grooves are matched with the anchor bolts (11).

6. The transversely compensating metal bellows expansion joint with limiting function according to claim 1, wherein: rubber pads (10) are fixedly connected to two sides of the sliding ring (6), and a plurality of groups of holes matched with the limiting rods (7) are formed in the surfaces of the rubber pads (10).