CN216555922U

CN216555922U - Fully-buried anti-corrosion expansion joint with corrugated structure

Info

Publication number: CN216555922U
Application number: CN202123274723.5U
Authority: CN
Inventors: 姜爱荣
Original assignee: Jiangsu Changfeng Bellows Co ltd
Current assignee: Jiangsu Changfeng Bellows Co ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-05-17
Anticipated expiration: 2031-12-23

Abstract

The utility model discloses a fully-buried anticorrosive expansion joint with a corrugated structure, relates to the technical field of expansion joints, and aims to solve the problems that connecting devices at two ends of the existing expansion joint are fixed and cannot move, the expansion joint is difficult to axially move when in use, the functionality of reducing the axial load of a pipeline is reduced, and the service life is shortened. The pipeline connector is provided with two, and two pipeline connectors set up relatively, two all be provided with four on the pipeline connector and connect base and pipeline connector welded connection, the upper and lower side of connecting the base all is provided with the seat card, the inside of connecting the base is provided with the ball groove, be provided with spacing ball card on the connection base, all be provided with four screws on connection base and the spacing ball card.

Description

Fully-buried anti-corrosion expansion joint with corrugated structure

Technical Field

The utility model relates to the technical field of expansion joints, in particular to a fully-buried anticorrosive expansion joint with a corrugated structure.

Background

The expansion joint is also called as a compensator, and refers to a flexible element which can effectively play a role of compensating axial deformation, the expansion joint has large axial flexibility and is easy to deform, can compensate the thermal expansion difference of the pipe and the shell caused by different wall temperatures, reduce the axial load of the pipe and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell, avoiding causing strength damage, instability damage and tube pull-off damage, it has the advantages of reliable work, good performance, compact structure and the like, is widely applied to chemical, metallurgical, nuclear and other departments, and the metal expansion joint comprises a bent pipe type expansion joint, a corrugated pipe expansion joint, a sleeve type expansion joint, a rubber air duct expansion joint and the like, in order to prevent the expansion joint from being damaged or leakage of transmission substances due to overlarge deformation amplitude, fixing devices are usually arranged on the two sides of the expansion joint and the pipeline connecting part to connect the two sides of the expansion joint, so that the movable range of the expansion joint can be limited.

However, the connecting devices at the two ends of the existing expansion joint are fixed and cannot move, and the expansion joint is difficult to move axially when in use, so that the functionality of reducing the axial load of the pipeline is reduced, and the service life is reduced; therefore, the existing requirements are not met, and a fully-buried anti-corrosion expansion joint with a corrugated structure is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fully-buried anticorrosive expansion joint with a corrugated structure, and aims to solve the problems that connecting devices at two ends of the existing expansion joint, which are proposed in the background art, cannot be fixed and move, and the expansion joint is difficult to move axially when in use, so that the functionality of reducing the axial load of a pipeline is reduced, and the service life of the expansion joint is shortened.

In order to achieve the purpose, the utility model provides the following technical scheme: a full-buried anti-corrosion expansion joint with a corrugated structure comprises two pipeline connecting ports, and two pipeline connecting ports are oppositely arranged, four connecting bases are respectively arranged on the two pipeline connecting ports, and the connecting base is welded with the pipeline connecting port, the upper part and the lower part of the connecting base are both provided with a base clamp, the connecting base is internally provided with a ball groove, the connecting base is provided with a limiting ball clamp, the connecting base and the limiting ball clamp are both provided with four screw holes, and the screw hole on the limiting ball clamp is in threaded connection with the screw hole on the connecting base through a bolt, the limiting ball clamp is internally provided with a ball clamping groove, the opposite side of ball draw-in groove is provided with the shaft hole, the inside of ball draw-in groove and ball draw-in groove is provided with changes the ball, be provided with the connecting axle on changing the ball, and connecting axle and change ball welded connection.

Preferably, the other side of the connecting shaft on one side is provided with a first thread, and the other side of the connecting shaft on one side is provided with a second thread.

Preferably, the first threads are connected with the second threads through connecting rods, the connecting rods are provided with two connecting rods, an inner sealing sleeve is arranged between the two connecting rods, reinforcing rods are arranged above and below the inner sealing sleeve, the two reinforcing rods are connected with the connecting rods in a welded mode, and outer sealing sleeves are arranged on two sides of the connecting rods.

Preferably, the outer sealing sleeve, the connecting rod and the inner sealing sleeve are internally provided with shaft grooves, one side of the inside of each shaft groove is provided with a first fastening screw groove, the other side of each first fastening screw groove is provided with a second fastening screw groove, the first threads are connected with the first fastening screw grooves, and the second threads are connected with the second fastening screw grooves.

Preferably, the inside in shaft hole is provided with a dish groove, the inside in dish groove is provided with sealed dish, and sealed dish cover is on the connecting axle.

Preferably, a corrugated expansion pipe is arranged between the two pipeline connecting ports, and the two pipeline connecting ports are both provided with a connecting flange.

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

1. the reinforcing devices on two sides of the expansion joint are arranged to connect the base and the ball rotating clamp, the rotatable ball rotating is arranged in the connecting base and the ball rotating clamp, two sides of the expansion joint are connected through the connecting shafts on the ball rotating, the two connecting shafts can rotate, the problems that the connecting devices on two ends of the existing expansion joint are fixed and cannot move, the expansion joint is clamped by the connecting devices when in use, axial movement is difficult, the function of reducing the axial load of a pipeline is reduced, and the service life is reduced are solved.

2. Through using two connective bars to connect two connecting axles to set up the inner seal cover between two connective bars, the both sides of two connective bars set up the outer seal cover, seal the screw thread portion on the connecting axle inside the shaft groove, avoid burying the expansion joint underground the back, the screw thread is corroded to dirty sewage etc. of underground, makes it rust, and the comparatively trouble problem of maintenance dismantlement takes place.

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 connection base and the spin-ball card according to the present invention;

fig. 3 is a schematic view of the internal structure of the internal seal cartridge of the present invention;

in the figure: 1. a pipeline connection port; 2. a connecting base; 3. a limiting ball clamp; 4. a ball groove; 5. a ball slot; 6. a screw hole; 7. a disc groove; 8. rotating the ball; 9. a connecting shaft; 10. sealing the disc; 11. a bolt; 12. a connecting rod; 13. an inner sealing sleeve; 14. a reinforcing rod; 15. an outer sealing sleeve; 16. a shaft groove; 17. a first fastening screw groove; 18. a first thread; 19. a second thread; 20. a second fastening screw groove; 21. a corrugated expansion pipe; 22. a connecting flange; 23. a seat card; 24. and the shaft hole.

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.

Referring to fig. 1-3, an embodiment of the present invention is shown: a fully-buried anti-corrosion expansion joint with a corrugated structure comprises pipeline connecting ports 1, wherein the pipeline connecting ports 1 are provided with two, the two pipeline connecting ports 1 are oppositely arranged, four connecting bases 2 are respectively arranged on the two pipeline connecting ports 1, the connecting bases 2 are welded with the pipeline connecting ports 1, seat clamps 23 are respectively arranged above and below the connecting bases 2, a ball groove 4 is arranged inside the connecting bases 2, a limiting ball clamp 3 is arranged on the connecting bases 2, four screw holes 6 are respectively arranged on the connecting bases 2 and the limiting ball clamp 3, the screw holes 6 on the limiting ball clamp 3 are in threaded connection with the screw holes 6 on the connecting bases 2 through bolts 11, a ball clamping groove 5 is arranged inside the limiting ball clamp 3, the other side of the ball clamping groove 5 is provided with a 24, a rotating ball 8 is arranged inside the ball groove 4 and the ball clamping groove 5, a connecting shaft 9 is arranged on the rotating ball 8, and the connecting shaft 9 is welded with the rotating ball 8, the ball 8 can be connecting

base

2 and 3 inside rotations of spacing ball card to make connecting axle 9 rotate, can not influence the axial displacement of expansion joint when connecting two pipeline connectors 1, avoid the fixed unable activity of current expansion joint both ends connecting device, expansion joint axial displacement is comparatively difficult when using, leads to its functional decline that reduces pipeline axial load, and the problem that life reduces takes place.

Furthermore, the other side of one side connecting shaft 9 is provided with a first thread 18, one side of the other side connecting shaft 9 is provided with a second thread 19, the two threads in different directions can enable the connecting shafts 9 on two sides to be connected with the same fastener, and the tightness of the two connecting shafts 9 can be controlled simultaneously by rotating the fastener.

Further, first screw thread 18 passes through connective bar 12 and second screw thread 19 and is connected, connective bar 12 is provided with two, be provided with inner sealing cover 13 between two connective bars 12, inner sealing cover 13's the upper and lower side all is provided with reinforcing rod 14, and two reinforcing rod 14 all with connective bar 12 welded connection, the both sides of two connective bars 12 all are provided with outer sealing sleeve 15, inner sealing cover 13 can be with twisting two and the connective bar between 12 connecting axle 9 parcel, with outer sealing sleeve 15 cooperation with impurity such as earth isolated externally, avoid the internal thread to rust, the problem of maintaining comparatively difficulty takes place.

Further, the outer sealing sleeve 15, the connecting rod 12 and the inner sealing sleeve 13 are internally provided with a shaft groove 16, one side of the inside of the shaft groove 16 is provided with a first fastening screw groove 17, the other side of the first fastening screw groove 17 is provided with a second fastening screw groove 20, the first thread 18 is connected with the first fastening screw groove 17, and the second thread 19 is connected with the second fastening screw groove 20.

Further, the inside in shaft hole 24 is provided with dish groove 7, and the inside in dish groove 7 is provided with sealed dish 10, and sealed dish 10 cover on connecting axle 9, and sealed dish 10 can seal shaft hole 24, avoids impurity such as earth to get into in ball groove 4 and the ball card groove 5 from shaft hole 24, and to inside production corruption, the problem that influences its life takes place.

Further, the corrugated expansion pipes 21 are arranged between the two pipeline connecting ports 1, the connecting flanges 22 are arranged on the two pipeline connecting ports 1, the corrugated expansion pipes 21 can be bent, axial loads of pipelines can be reduced after the pipelines are connected on two sides, temperature difference stress of the pipes, the pipe plates and the shell is reduced, and strength damage, instability damage and pipe pull-off damage are avoided.

The working principle is as follows: when in use, the connecting base 2 and the limiting ball clamp 3 on the pipeline connecting ports 1 at two sides are spherical hollow, the rotating ball 8 can rotate inside, the connecting shaft 9 is connected with the connecting shaft 9 to enable the connecting shaft 9 to rotate, the connecting shafts 9 on two sides are connected through the connecting rod 12, the two pipeline connecting ports 1 cannot be limited by the connecting mechanism during axial displacement, the problem that the displacement amplitude is reduced due to the fact that the two pipeline connecting ports 1 are fixed by the connecting mechanism during axial displacement, the functionality of the expansion joint for reducing the axial load of the pipeline is reduced, the service life is reduced is solved, the shaft hole 24 is sealed by the sealing disc 10, impurities such as soil and the like are prevented from entering the ball groove 4 and the ball clamping groove 5 from the shaft hole 24 to corrode internal mechanisms of the two, the first thread 18 and the second thread 19 are wrapped by the inner sealing sleeve 13, the problems that impurities such as soil contact the threads, the threads rust and the maintenance is difficult can be avoided.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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

1. The utility model provides a bury anticorrosive expansion joint entirely with ripple architecture, includes pipeline connector (1), its characterized in that: the pipeline connecting device is characterized in that the two pipeline connecting ports (1) are arranged oppositely, four connecting bases (2) are arranged on the two pipeline connecting ports (1), the connecting bases (2) are welded with the pipeline connecting ports (1), seat clamps (23) are arranged above and below the connecting bases (2), a ball groove (4) is arranged inside the connecting bases (2), a limiting ball clamp (3) is arranged on the connecting bases (2), four screw holes (6) are arranged on the connecting bases (2) and the limiting ball clamp (3), the screw hole (6) on the limiting ball clamp (3) is in threaded connection with the screw hole (6) on the connecting base (2) through a bolt (11), a ball clamping groove (5) is arranged inside the limiting ball clamp (3), and a shaft hole (24) is arranged on the other side of the ball clamping groove (5), the ball groove (4) and the ball clamping groove (5) are internally provided with a rotating ball (8), the rotating ball (8) is provided with a connecting shaft (9), and the connecting shaft (9) is welded with the rotating ball (8).

2. The fully buried anticorrosive expansion joint with a corrugated structure according to claim 1, wherein: the other side of the connecting shaft (9) on one side is provided with a first thread (18), and the other side of the connecting shaft (9) on the other side is provided with a second thread (19).

3. The fully buried anticorrosive expansion joint with a corrugated structure according to claim 2, wherein: the connecting rod (12) is connected with the second thread (19) through the connecting rod (12), the connecting rod (12) is provided with two, two inner sealing sleeves (13) are arranged between the connecting rod (12), reinforcing rods (14) are arranged above and below the inner sealing sleeves (13), the two reinforcing rods (14) are connected with the connecting rod (12) in a welded mode, and the outer sealing sleeves (15) are arranged on the two sides of the connecting rod (12).

4. The fully buried anticorrosive expansion joint with a corrugated structure according to claim 3, wherein: the connecting rod is characterized in that a shaft groove (16) is formed in the outer sealing sleeve (15), the connecting rod (12) and the inner sealing sleeve (13), a first fastening screw groove (17) is formed in one side of the inner portion of the shaft groove (16), a second fastening screw groove (20) is formed in the other side of the first fastening screw groove (17), a first thread (18) is connected with the first fastening screw groove (17), and a second thread (19) is connected with the second fastening screw groove (20).

5. The fully buried anticorrosive expansion joint with a corrugated structure according to claim 1, wherein: the inside in shaft hole (24) is provided with dish groove (7), the inside in dish groove (7) is provided with sealed dish (10), and sealed dish (10) cover is on connecting axle (9).

6. The fully buried anticorrosive expansion joint with a corrugated structure according to claim 1, wherein: a corrugated expansion pipe (21) is arranged between the two pipeline connecting ports (1), and a connecting flange (22) is arranged on each of the two pipeline connecting ports (1).