CN215173185U

CN215173185U - Active damping corrugated expansion joint

Info

Publication number: CN215173185U
Application number: CN202121441299.6U
Authority: CN
Inventors: 丁龙龙
Original assignee: Henan Dinglong Power Equipment Co ltd
Current assignee: Henan Dinglong Power Equipment Co ltd
Priority date: 2021-06-28
Filing date: 2021-06-28
Publication date: 2021-12-14
Anticipated expiration: 2031-06-28

Abstract

The utility model discloses an initiative shock attenuation ripple expansion joint relates to the expansion joint field, including the expansion joint connecting pipe, the go-between is all installed at the both ends of expansion joint connecting pipe, two installation spouts have been seted up to the symmetry on the inner wall of go-between, and the slidable mounting hole has all been seted up on the one side inner wall that two installation spouts kept away from each other, slidable mounting has the screw thread back shaft in the slidable mounting hole, and the inside fixed mounting of screw thread back shaft has spacing carousel, and equal slidable mounting has fixed cushion in two installation spouts, fixed mounting has two hexagonal sleeves on the go-between. The utility model discloses, through the interact of fixed cushion isotructure for the expansion joint can be through the further fixed of this kind of structure of fixed cushion when connecting tube isotructure, can adjust the vibrations that the degree of contact buffering between fixed cushion and the pipeline brought by steam simultaneously, has initiatively alleviated the vibrations that the expansion joint received, and then has guaranteed the connection stability of expansion joint.

Description

Active damping corrugated expansion joint

Technical Field

The utility model relates to an expansion joint technical field especially relates to an initiative shock attenuation ripple expansion joint.

Background

The expansion joint is a flexible structure arranged on a container shell or a pipeline for compensating additional stress caused by temperature difference and mechanical vibration, and has the advantages of reliable work, good performance, compact structure and the like as the expansion joint is an elastic compensation element capable of freely stretching, thus being widely applied to chemical, metallurgical, nuclear and other departments.

In the prior art, the expansion joint is generally fixed with structures such as a pipeline and a valve only by mutually matching screws and bolts in application, and the expansion joint can deviate and fall off due to the vibration of steam after long-time use due to the rigid connection mode of the valve and a steam pipeline in the fixing method, so that the expansion joint cannot be stably fixed, and the requirement of people is met by the active damping corrugated expansion joint.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an initiative shock attenuation ripple expansion joint to the connected mode of the expansion joint that provides in solving above-mentioned background art is rigid connection, can't bear the vibrations that reasons such as steam brought, makes the expansion joint follow the problem that pipeline or valve drop easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an initiative shock attenuation ripple expansion joint, includes the expansion joint connecting pipe, the go-between is all installed at the both ends of expansion joint connecting pipe, two installation spouts have been seted up to the symmetry on the inner wall of go-between, and the slidable mounting hole has all been seted up on the one side inner wall that two installation spouts were kept away from each other, slidable mounting has the screw thread back shaft in the slidable mounting hole, and the inside fixed mounting of screw thread back shaft has spacing carousel, and equal slidable mounting has fixed cushion in two installation spouts, fixed mounting has two hexagonal sleeves on the go-between, and two screw thread back shafts rotate respectively and cup joint in two hexagonal sleeves, two grooves of stirring have been seted up to the symmetry on the hexagonal sleeve.

Preferably, the positioning chutes are formed in the inner walls of the two sides of the mounting chute, the positioning sliding blocks are arranged in the two positioning chutes in a sliding mode, and the two positioning sliding blocks are fixedly mounted on the fixed cushion block.

Preferably, the same positioning slide shaft is fixedly mounted on the inner walls of the two sides of the positioning slide groove, a positioning slide hole is formed in the positioning slide block, and the positioning slide shaft is slidably mounted in the positioning slide hole.

Preferably, the positioning sliding shaft is sleeved with an extension spring in a sliding manner, one end of the extension spring is in contact with the positioning sliding block, and the other end of the extension spring is in contact with the inner wall of the positioning sliding groove.

Preferably, a positioning rotating groove is formed in the inner wall of the hexagonal sleeve and communicated with the shifting groove, a threaded rotating ring is rotatably mounted in the positioning rotating groove, and the threaded rotating ring is sleeved on the threaded supporting shaft in a threaded manner.

Preferably, a hexagonal limiting plate is fixedly mounted on the thread supporting shaft and is in contact with the hexagonal sleeve.

Preferably, the convex limiting grooves are formed in one sides, close to the sliding mounting holes, of the two fixing cushion blocks, and the limiting rotary disc is rotatably mounted in the convex limiting grooves.

The utility model has the advantages that:

the utility model discloses in, through the interact of fixed cushion isotructure for the expansion joint can be through the further fixed of this kind of structure of fixed cushion when connecting tube isotructure, can adjust the vibrations that the degree of contact buffering between fixed cushion and the pipeline brought by steam simultaneously, has alleviated the vibrations that the expansion joint received, and then has guaranteed the connection stability of expansion joint.

The utility model discloses in, through the setting of expanding spring and location slide-shaft isotructure for the vibrations that steam produced can be conducted for fixed cushion and then conducted for two expanding springs through two location sliders, and then reduce the vibrations that the go-between received, reach the function that the protection go-between made it can not follow the pipeline and drop, further improvement the connection stability of go-between.

Drawings

Fig. 1 is a schematic structural view of an active damping corrugated expansion joint according to the present invention;

fig. 2 is a schematic side sectional structural view of an active damping bellows expansion joint according to the present invention;

fig. 3 is a schematic cross-sectional structural view of a connecting ring in an active damping bellows expansion joint according to the present invention;

fig. 4 is an enlarged schematic structural diagram of a portion a in fig. 3 of an active damping bellows expansion joint according to the present invention.

In the figure: 1. an expansion joint connecting pipe; 2. a connecting ring; 3. installing a chute; 4. a sliding mounting hole; 5. fixing the cushion block; 6. a convex limiting groove; 7. a threaded support shaft; 8. a limiting turntable; 9. a hexagonal sleeve; 10. positioning the rotary groove; 11. rotating the screw thread; 12. a poking groove; 13. a hexagonal limiting plate; 14. positioning the chute; 15. positioning a sliding shaft; 16. positioning the sliding block; 17. positioning a slide hole; 18. a telescoping spring.

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. 1-4, an active damping corrugated expansion joint comprises an expansion joint connecting pipe 1, wherein connecting rings 2 are respectively installed at two ends of the expansion joint connecting pipe 1, two installation chutes 3 are symmetrically arranged on the inner wall of the connecting ring 2, sliding installation holes 4 are respectively arranged on the inner wall of one side, away from each other, of the two installation chutes 3, threaded support shafts 7 are slidably installed in the sliding installation holes 4, a limit turntable 8 is fixedly installed inside the threaded support shafts 7, fixed cushion blocks 5 are respectively slidably installed in the two installation chutes 3, two hexagonal sleeves 9 are fixedly installed on the connecting ring 2, the two threaded support shafts 7 are respectively rotatably sleeved in the two hexagonal sleeves 9, two toggle grooves 12 are symmetrically arranged on the hexagonal sleeves 9, a pipeline is inserted into the connecting ring 2, and the threaded swivel 11 is rotated through the toggle grooves 12, so that the threaded swivel 11 rotates in a positioning swivel 10, the thread rotating ring 11 acts on the thread supporting shaft 7, the thread supporting shaft 7 slides in the sliding mounting hole 4, the thread supporting shaft 7 slides inwards to push the fixed cushion block 5 to slide inwards, the fixed cushion block 5 can stably fix a pipeline, meanwhile, vibration generated by steam can be transmitted to the fixed cushion block 5 and then transmitted to the two expansion springs 18 through the two positioning sliders 16, and then vibration received by the connecting ring 2 is reduced.

The utility model discloses in, all seted up location spout 14 on the both sides inner wall of installation spout 3, equal slidable mounting has location slider 16 in two location spouts 14, and two equal fixed mounting of location slider 16 have guaranteed fixed cushion 5's slip stability through two location sliders 16 on fixed cushion 5, have avoided fixed cushion 5 to take place the possibility that the skew can't stabilize fixed pipeline.

The utility model discloses in, fixed mounting has same location slide 15 on the both sides inner wall of location spout 14, has seted up location slide 17 on the slider 16 of location, and location slide 15 slidable mounting makes location slider 16 can not fall out location spout 14 through location slide 17 and location slide 15's interact in location slide 17, has ensured location slider 16's installation stability.

The utility model discloses in, sliding on the location slide shaft 15 and having cup jointed expanding spring 18, expanding spring 18's one end contacts with location slider 16, and expanding spring 18's the other end contacts with the inner wall of location spout 14, and expanding spring 18 is used for supporting location slider 16, and the vibrations that whale buffering fixed cushion 5 received have improved go-between 2's installation stability simultaneously.

The utility model discloses in, seted up location rotary groove 10 on hexagonal sleeve 9's the inner wall, location rotary groove 10 is linked together with stirring groove 12, and screw thread change 11 is installed to location rotary groove 10 internal rotations, and 11 screws of screw thread change cup joint on screw thread back shaft 7, and hexagonal sleeve 9 is used for supporting screw thread back shaft 7.

The utility model discloses in, fixed mounting has hexagonal limiting plate 13 on the screw thread back shaft 7, and hexagonal limiting plate 13 contacts with hexagonal sleeve 9, and hexagonal limiting plate 13 is used for preventing that 7 roll-off slidable mounting holes 4 of screw thread back shaft from leading to screw thread swivel 11 unable to be at control screw thread back shaft 7.

The utility model discloses in, two fixed cushion 5 are close to one side of slidable mounting hole 4 and have all been seted up type spacing groove 6, and two spacing carousel 8 rotate respectively and install in two type spacing grooves 6, have guaranteed through type spacing groove 6 and spacing carousel 8's interact that screw back shaft 7 can not break away from fixed cushion 5.

The utility model discloses the theory of operation:

the pipeline is inserted into the connecting ring 2, the thread rotating ring 11 is rotated through the shifting groove 12, the thread rotating ring 11 rotates in the positioning rotating groove 10, the thread rotating ring 11 acts on the thread supporting shaft 7 and slides in the sliding mounting hole 4, the thread supporting shaft 7 slides inwards to push the fixed cushion block 5 to slide inwards, the fixed cushion block 5 can stably fix the pipeline, meanwhile, vibration generated by steam is transmitted to the fixed cushion block 5 and then transmitted to the two telescopic springs 18 through the two positioning sliders 16, vibration received by the connecting ring 2 is reduced, the function of protecting the connecting ring 2 from falling off the pipeline is achieved, interaction between the positioning sliders 15 and the positioning sliders 16 ensures sliding stability of the fixed cushion block 5, the possibility that the fixed cushion block 5 deflects to stabilize the pipeline is avoided, the hexagonal limiting plate 13 is used for preventing the thread supporting shaft 7 from sliding out of the sliding mounting hole 4 to cause the thread rotating ring 11 to be incapable of controlling the connecting ring 11 The threaded support shaft 7 and the hexagonal sleeve 9 are used for supporting the threaded support shaft 7.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an initiative shock attenuation ripple expansion joint, includes expansion joint connecting pipe (1), go-between (2), its characterized in that are all installed at the both ends of expansion joint connecting pipe (1): two installation spouts (3) have been seted up to the symmetry on the inner wall of go-between (2), all seted up slidable mounting hole (4) on the one side inner wall that two installation spouts (3) kept away from each other, slidable mounting has screw thread back shaft (7) in slidable mounting hole (4), and the inside fixed mounting of screw thread back shaft (7) has spacing carousel (8), and equal slidable mounting has fixed cushion (5) in two installation spouts (3), fixed mounting has two hexagonal sleeve (9) on go-between (2), and two screw thread back shaft (7) rotate respectively and cup joint in two hexagonal sleeve (9), two stir groove (12) have been seted up to the symmetry on hexagonal sleeve (9).

2. An active damping bellows expansion joint as claimed in claim 1, wherein: all seted up location spout (14) on the both sides inner wall of installation spout (3), equal slidable mounting has location slider (16) in two location spout (14), and two equal fixed mounting in location slider (16) are on fixed cushion (5).

3. An active damping bellows expansion joint as claimed in claim 2, wherein: the positioning device is characterized in that the inner walls of two sides of the positioning sliding groove (14) are fixedly provided with the same positioning sliding shaft (15), the positioning sliding block (16) is provided with a positioning sliding hole (17), and the positioning sliding shaft (15) is slidably arranged in the positioning sliding hole (17).

4. An active damping bellows expansion joint as claimed in claim 3, wherein: the positioning sliding shaft (15) is sleeved with an expansion spring (18) in a sliding mode, one end of the expansion spring (18) is in contact with the positioning sliding block (16), and the other end of the expansion spring (18) is in contact with the inner wall of the positioning sliding groove (14).

5. An active damping bellows expansion joint as claimed in claim 1, wherein: the hexagonal socket is characterized in that a positioning rotating groove (10) is formed in the inner wall of the hexagonal socket (9), the positioning rotating groove (10) is communicated with a shifting groove (12), a threaded rotating ring (11) is rotatably mounted in the positioning rotating groove (10), and the threaded rotating ring (11) is in threaded sleeve joint with the threaded support shaft (7).

6. An active damping bellows expansion joint as claimed in claim 1, wherein: a hexagonal limiting plate (13) is fixedly mounted on the thread supporting shaft (7), and the hexagonal limiting plate (13) is in contact with the hexagonal sleeve (9).

7. An active damping bellows expansion joint as claimed in claim 1, wherein: protruding font spacing groove (6) have all been seted up to one side that two fixed cushion (5) are close to slidable mounting hole (4), and two spacing carousel (8) rotate respectively and install in two protruding font spacing grooves (6).