CN215215273U

CN215215273U - Pipeline expansion joint of even atress type

Info

Publication number: CN215215273U
Application number: CN202121022911.6U
Authority: CN
Inventors: 张真飞
Original assignee: Jiangsu Tongyi Power Equipment Co ltd
Current assignee: Jiangsu Tongyi Power Equipment Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-17
Anticipated expiration: 2031-05-13

Abstract

The utility model relates to the field of pipeline compensators, and discloses a uniformly stressed pipeline expansion joint, which solves the problems that the pipeline expansion joint in the current market is unbalanced in stress during installation and positioning deviation of the expansion joint is easy to occur, and comprises an expansion joint body, wherein the top and the bottom of the expansion joint body are respectively provided with an upper connecting flange and a lower connecting flange, the surfaces of the upper connecting flange and the lower connecting flange are respectively and fixedly connected with an installation gasket, a double-threaded rod is rotationally connected between the two installation gaskets, the surface of the double-threaded rod is fixedly connected with a sleeve, the surface of the sleeve is fixedly connected with a bearing frame, the inner part of the bearing frame is slidably connected with a T-shaped push block, the uniformly stressed pipeline expansion joint has ingenious structural design, the purpose of uniform stress of a pipeline and the expansion joint is realized, and when the expansion joint body is unbalanced in use, can be adjusted by self, and greatly prolongs the service life of the expansion joint.

Description

Pipeline expansion joint of even atress type

Technical Field

The utility model belongs to the technical field of the pipeline compensator, specifically be a pipeline expansion joint of even atress type.

Background

The pipeline compensator is also called as a telescopic device or a telescopic joint or an expansion joint and is mainly used for compensating thermal expansion and cold contraction of a pipeline caused by temperature change, if the pipeline cannot be expanded or contracted completely and freely during the temperature change, thermal stress is generated in the pipeline, the stress is considered in the pipeline design, otherwise, the stress can cause the pipeline to break and influence the normal production, and the pipeline compensator is used as an important component of pipeline engineering and plays an important role in ensuring the long-term normal operation of the pipeline.

The existing pipeline expansion joint is unbalanced in stress during installation, positioning deviation of the expansion joint is easy to occur, and the whole use limitation is large.

SUMMERY OF THE UTILITY MODEL

To the above situation, for overcoming prior art's defect, the utility model provides a pipeline expansion joint of even atress type, the effectual pipeline expansion joint that has solved among the above-mentioned background art current atress unbalanced when the installation, the problem of the positioning deviation of expansion joint takes place easily.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pipeline expansion joint of even atress type, including the expansion joint body, flange and lower flange are installed respectively to the top and the bottom of expansion joint body, go up flange and lower flange's the equal fixedly connected with mounting pad in surface, it is connected with double threaded rod to rotate between two mounting pads, double threaded rod's fixed surface is connected with the sleeve, telescopic fixed surface is connected with accepts the frame, the inside sliding connection who accepts the frame has T type ejector pad, the one end fixedly connected with turning block of T type ejector pad, buffer gear is installed to the bottom of going up flange and the top of lower flange equidistance, swing joint has the extrusion atress pole between two buffer gear.

Preferably, the surfaces of the upper connecting flange and the lower connecting flange are provided with through holes, and the surfaces of the upper connecting flange and the lower connecting flange are provided with screw rotating slotted holes at equal intervals.

Preferably, one end of the T-shaped push block, which is far away from the rotating block, is fixedly connected with a compression spring, and one end of the compression spring, which is far away from the T-shaped push block, is fixedly connected with one side of the inner cavity of the bearing frame.

Preferably, the surface of the extrusion stress rod is fixedly connected with a connecting frame, the surface of the connecting frame is provided with a rotating connecting rod, and one end of the rotating connecting rod, which is far away from the connecting frame, is rotatably connected with the surface of the rotating block.

Preferably, buffer gear is including buffering frame, buffer board, fixed block, buffering connecting rod, movable block and buffer spring, and the bottom fixed connection of two buffering frames has the buffer board between the both sides of buffering frame inner chamber at the bottom of last flange and the top of flange down, and sliding connection has the buffer board between the both sides of buffering frame inner chamber, and the fixed block is installed to the bottom of buffer board, and the equal sliding connection in both sides of buffering frame inner chamber bottom has the movable block, rotates between the surface of fixed block and two movable blocks to be connected with the buffering connecting rod, fixedly connected with buffer spring between two buffering connecting rods.

Preferably, four extrusion stress rods are arranged between the upper connecting flange and the lower connecting flange at equal intervals.

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

(1) the utility model discloses a pipe expansion joint, including expansion joint body, go up flange, lower flange, mounting pad, double threaded rod, accept the frame, T type ejector pad, the turning block, buffer gear, extrusion atress pole, run through mouthful, screw rotation slotted hole, compression spring, link and rotation connecting rod, make whole equipment structural design ingenious, realized the even purpose of atress of pipeline and expansion joint, make the expansion joint body when using the atress unbalanced, ability self-control prolongs the life of expansion joint greatly.

(2) The pipeline is arranged inside the expansion joint body through the through hole, then the upper connecting flange and the lower connecting flange are rotatably arranged by utilizing the screw to rotate the slotted hole and the mounting screw, when the whole expansion joint body is subjected to thermal expansion and cold contraction inside the pipeline in the using process, the whole upper connecting flange drives the expansion joint body to extrude downwards along with the double-threaded rod, the buffer plate inside the buffer frame drives the extrusion stress rod to extrude downwards along with the contraction of the expansion joint body, the buffer frame at the top of the lower connecting flange carries out pressure support on the bottom end of the extrusion stress rod through the buffer connecting rod which expands and extrudes mutually, meanwhile, the connecting frame on the surface of the extrusion stress rod drives the rotating connecting rod to carry out extrusion motion, and the rotating connecting rod drives the T-shaped push block to move inside the bearing frame through the rotating block during extrusion, along with the removal of T type ejector pad, the inside compression spring of accepting the frame afterwards just can protect the support to T type ejector pad to guarantee that whole expansion joint body realizes even atress in the use.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the extrusion stress bar of the present invention;

fig. 3 is a schematic structural view of the buffering mechanism of the present invention;

in the figure: 1. an expansion joint body; 2. an upper connecting flange; 3. a lower connecting flange; 4. installing a gasket; 5. a double-headed threaded rod; 6. a sleeve; 7. a bearing frame; 8. a T-shaped push block; 9. rotating the block; 10. a buffer mechanism; 1001. a buffer frame; 1002. a buffer plate; 1003. a fixed block; 1004. a buffer connecting rod; 1005. a moving block; 1006. a buffer spring; 11. extruding the stress rod; 12. a through opening; 13. the screw rotates the slotted hole; 14. a compression spring; 15. a connecting frame; 16. the connecting rod is rotated.

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 some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the first embodiment, as shown in fig. 1, 2 and 3, the expansion joint comprises an expansion joint body 1, wherein an upper connecting flange 2 and a lower connecting flange 3 are respectively installed at the top and the bottom of the expansion joint body 1, the surfaces of the upper connecting flange 2 and the lower connecting flange 3 are fixedly connected with mounting gaskets 4, a double-threaded rod 5 is rotatably connected between the two mounting gaskets 4, two ends of the double-threaded rod 5 are rotatably connected with rotating nuts, the flexibility of the expansion joint body 1 can be optionally adjusted by the rotating nuts, a sleeve 6 is fixedly connected to the surface of the double-threaded rod 5, a bearing frame 7 is fixedly connected to the surface of the sleeve 6, a T-shaped push block 8 is slidably connected to the inside of the bearing frame 7, a rotating block 9 is fixedly connected to one end of the T-shaped push block 8, the rotating block 9 is used for supporting the bottom end of a rotating connecting rod 16, the rotating block 9 is driven by the T-shaped push block 8 for buffering and supporting the moving rotating connecting rod 16, the uniformity of pipeline expansion joint atress is convenient for realize, and buffer gear 10 is installed to the bottom of going up flange 2 and the top of flange 3 is equalling apart from down, and swing joint has extrusion atress pole 11 between two buffer gear 10.

In the second embodiment, on the basis of the first embodiment, as shown in fig. 1 and 2, through holes 12 are formed in the surfaces of the upper connecting flange 2 and the lower connecting flange 3, screw rotation slotted holes 13 are equidistantly formed in the surfaces of the upper connecting flange 2 and the lower connecting flange 3, the upper connecting flange 2 and the lower connecting flange 3 are rotatably installed by using the screw rotation slotted holes 13 and installation screws, and the tightness of the installation of the pipe expansion joint body 1 is improved by using the plurality of screw rotation holes 13.

Third embodiment, on the basis of first embodiment, as shown in fig. 2, one end of the T-shaped pushing block 8, which is far away from the rotating block 9, is fixedly connected with a compression spring 14, one end of the compression spring 14, which is far away from the T-shaped pushing block 8, is fixedly connected with one side of the inner cavity of the receiving frame 7, the rotating connecting rod 16 drives the T-shaped pushing block 8 to move inside the receiving frame 7 through the rotating block 9 when being extruded, and along with the movement of the T-shaped pushing block 8, the compression spring 14, which is inside the receiving frame 7, can protect and support the T-shaped pushing block 8, so that the uniform stress of the whole expansion joint body 1 is realized in the using process.

Fourth embodiment, on the basis of the first embodiment, as shown in fig. 2, the connecting frame 15 is fixedly connected to the surface of the extrusion force-bearing rod 11, the rotating connecting rod 16 is installed on the surface of the connecting frame 15, one end, far away from the connecting frame 15, of the rotating connecting rod 16 is rotatably connected to the surface of the rotating block 9, when the extrusion force-bearing rod 11 moves downward, the connecting frame 15 and the rotating connecting rod 16 are driven to perform extrusion movement, and the stability of the downward movement of the extrusion force-bearing rod 11 can be further improved through the rotating connecting rod 16.

Fifth embodiment, based on the first embodiment, as shown in fig. 2 and 3, the buffer mechanism 10 includes a buffer frame 1001, a buffer plate 1002, a fixed block 1003, a buffer link 1004, a movable block 1005 and a buffer spring 1006, the bottoms of the two buffer frames 1001 are fixedly connected to the bottom of the upper connecting flange 2 and the top of the lower connecting flange 3, the buffer plate 1002 is slidably connected between two sides of the inner cavity of the buffer frame 1001, the fixed block 1003 is installed at the bottom of the buffer plate 1002, the movable block 1005 is slidably connected to both sides of the bottom of the inner cavity of the buffer frame 1001, the buffer link 1004 is rotatably connected between the surface of the fixed block 1003 and the two movable blocks 1005, the buffer spring 1006 is fixedly connected between the two buffer links 1004, as the expansion joint body 1 contracts, the buffer plate 1002 inside the buffer frame 1001 drives the compression force-bearing rod 11 to compress downward, and then the buffer frame 1001 at the top of the lower connecting flange 3 supports the bottom end of the compression force-bearing rod 11 by the buffer link 1004 expanding and compressing each other, it is convenient to improve the stability of the pressing force receiving lever 11.

Sixth embodiment, on the basis of the first embodiment, as shown in fig. 1 and 2, four extrusion force-bearing rods 11 are provided, and the four extrusion force-bearing rods 11 are equidistantly installed between the upper connecting flange 2 and the lower connecting flange 3, so that the four extrusion force-bearing rods 11 can ensure that the expansion joint body 1 is stressed more uniformly when in use.

The working principle is as follows: when the expansion joint works, a pipeline is arranged inside the expansion joint body 1 through the through hole 12, then the upper connecting flange 2 and the lower connecting flange 3 are rotatably arranged through the screw rotating slotted hole 13 and the mounting screw, when the whole expansion joint body 1 is subjected to thermal expansion and cold contraction inside the pipeline in the use process, the whole upper connecting flange 2 drives the expansion joint body 1 to extrude downwards along with the double-threaded rod 5, the buffer plate 1002 inside the buffer frame 1001 drives the extrusion stress rod 11 to extrude downwards along with the contraction of the expansion joint body 1, then the buffer frame 1001 at the top of the lower connecting flange 3 carries out pressure support on the bottom end of the extrusion stress rod 11 through the buffer connecting rod 1004 which expands and extrudes mutually, meanwhile, the connecting frame 15 extruding the surface of the extrusion stress rod 11 drives the rotating connecting rod 16 to carry out extrusion movement, the rotating connecting rod 16 drives the T-shaped push block 8 to move inside the bearing frame 7 through the rotating block 9 when extruding, along with the movement of the T-shaped push block 8, the compression spring 14 inside the bearing frame 7 can protect and support the T-shaped push block 8, so that the whole expansion joint body 1 is guaranteed to be stressed uniformly in the using process.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a pipeline expansion joint of even atress type, includes expansion joint body (1), its characterized in that: connecting flange (2) and lower flange (3) are installed respectively to the top and the bottom of expansion joint body (1), go up equal fixedly connected with mounting pad (4) in surface of connecting flange (2) and lower flange (3), it is connected with double threaded rod (5) to rotate between two mounting pad (4), the fixed surface of double threaded rod (5) is connected with sleeve (6), the fixed surface of sleeve (6) is connected with accepts frame (7), the inside sliding connection who accepts frame (7) has T type ejector pad (8), the one end fixedly connected with turning block (9) of T type ejector pad (8), buffer gear (10) are installed to the bottom of going up connecting flange (2) and the top of lower flange (3) equidistance, swing joint has extrusion atress pole (11) between two buffer gear (10).

2. A uniformly loaded pipe expansion joint according to claim 1, wherein: the surface of the upper connecting flange (2) and the surface of the lower connecting flange (3) are both provided with through holes (12), and the surfaces of the upper connecting flange (2) and the lower connecting flange (3) are equidistantly provided with screw rotating slotted holes (13).

3. A uniformly loaded pipe expansion joint according to claim 1, wherein: one end, far away from the rotating block (9), of the T-shaped pushing block (8) is fixedly connected with a compression spring (14), and one end, far away from the T-shaped pushing block (8), of the compression spring (14) is fixedly connected with one side of the inner cavity of the bearing frame (7).

4. A uniformly loaded pipe expansion joint according to claim 1, wherein: the surface of the extrusion stress rod (11) is fixedly connected with a connecting frame (15), the surface of the connecting frame (15) is provided with a rotating connecting rod (16), and one end, far away from the connecting frame (15), of the rotating connecting rod (16) is rotatably connected with the surface of the rotating block (9).

5. A uniformly loaded pipe expansion joint according to claim 1, wherein: buffer gear (10) are including buffering frame (1001), buffer board (1002), fixed block (1003), buffering connecting rod (1004), movable block (1005) and buffer spring (1006), the bottom fixed connection of two buffering frames (1001) is at the bottom of last flange (2) and the top of flange (3) down, sliding connection has buffer board (1002) between the both sides of buffering frame (1001) inner chamber, fixed block (1003) are installed to the bottom of buffer board (1002), equal sliding connection has movable block (1005) in both sides of buffering frame (1001) inner chamber bottom, it is connected with buffering connecting rod (1004) to rotate between the surface of fixed block (1003) and two movable blocks (1005), fixedly connected with buffer spring (1006) between two buffering connecting rod (1004).

6. A uniformly loaded pipe expansion joint according to claim 1, wherein: the four extrusion stress rods (11) are arranged, and the four extrusion stress rods (11) are equidistantly arranged between the upper connecting flange (2) and the lower connecting flange (3).