CN214466963U

CN214466963U - Wear-resisting type expansion joint

Info

Publication number: CN214466963U
Application number: CN202120172737.7U
Authority: CN
Inventors: 黄永和
Original assignee: Wuhan Yongtai Bellows Co ltd
Current assignee: Wuhan Yongtai Bellows Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-10-22
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to the technical field of expansion joints, and discloses a wear-resistant expansion joint which comprises two symmetrically arranged flanges, wherein the adjacent ends of the two flanges are communicated with a corrugated pipe, one end of the flange positioned on the left side is provided with a first cylinder, one end of the first cylinder is provided with a movable groove, the surface of the first cylinder is provided with a plurality of first slots, the wear-resistant expansion joint is characterized in that a tension spring, a strip-shaped plate, an insertion block, a vertical rod and a threaded hole are matched with a screwing bolt, the round sleeve can move on the flange, when the round sleeve moves, the vertical rod can move up and down, when the vertical rod moves downwards, the inserting block is driven to be inserted into the first slot and the second slot, when the round sleeve moves away from the flange, the insert blocks can move out of the first slot and the second slot, and a user can conveniently install and detach the first cylinder and the second cylinder on the flange.

Description

Wear-resisting type expansion joint

Technical Field

The utility model relates to an expansion joint technical field specifically is a wear-resisting type expansion joint.

Background

An expansion joint refers to a flexible element that effectively functions to compensate for axial deformation. For example, the expansion joint welded on the shell of the fixed tube-plate heat exchanger has large axial flexibility and easy deformation, can compensate the thermal expansion difference generated by the tube and the shell due to different wall temperatures, and reduces the axial load of the tube and the shell, thereby reducing the temperature difference stress of the tube, the tube plate and the shell and avoiding causing strength damage, instability damage and tube pull-out damage. The expansion joint has many kinds, and the common structures include wave, ring plate welding, clamping shell type and the like, wherein the wave expansion joint is most widely applied, and the ring plate welding expansion joint is only suitable for normal pressure or low pressure occasions.

In the prior art, expansion joints can be used for pipelines of industrial plants in northwest regions, and due to the fact that wind sand is more in northwest regions, when the wind sand blows on the expansion joints, corrugated pipes on the expansion joints are damaged, the service life of the expansion joints can be influenced by hot sunlight irradiating on the corrugated pipes, and therefore the wear-resistant expansion joints are provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a wear-resisting type expansion joint has solved the problem that the background art provided.

(II) technical scheme

For the purpose of realizing above-mentioned wear-resisting, increase of service life, the utility model provides a following technical scheme: a wear-resistant expansion joint comprises two symmetrically arranged flanges, a corrugated pipe is communicated with one adjacent end of the two flanges, a first cylinder is arranged at one end of the flange positioned on the left side, one end of the first cylinder is provided with a movable groove, the surface of the first cylinder is provided with a plurality of first slots, a second cylinder is arranged in the movable groove, a plurality of second slots are arranged on the surface of the second cylinder, an annular groove is arranged at one end of each of the two adjacent flanges, a plurality of placing grooves are arranged on the inner wall of the annular groove, tension springs are arranged in the placing grooves, one end of the tension spring is fixedly connected with a strip-shaped plate, one side of the strip-shaped plate is fixedly connected with an insertion block, the upper surface fixed connection of BAR shaped plate has vertical pole, the upper end of vertical pole runs through the inner wall of standing groove and extends to the outside, two the surface of flange is provided with moving mechanism.

Preferably, the moving mechanism comprises two symmetrically-arranged round sleeves, the round sleeves are sleeved on the surface of the flange, threaded holes are formed in the surface of the flange, and screwing bolts matched with the threaded holes penetrate through the surface of the round sleeves.

Preferably, the inner wall of the first cylinder is fixedly connected with a limiting block, and the limiting block is an annular block.

Preferably, the upper end of the vertical rod is arranged obliquely, and the vertical rod is a metal rod.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of wear-resisting type expansion joint, through setting up tension spring, the bar shaped plate, the inserted block, the perpendicular pole, the screw hole cooperation bolt of screwing, can make the circle cover shift position on the flange, will make the perpendicular pole reciprocate the position when the circle cover shift position, will drive the inserted block and inject first slot and second slot when the perpendicular pole shifts down the position in, when the circle cover moves away from the flange, the inserted block will follow first slot and second slot and remove out, the user of being convenient for installs and dismantles first drum and second drum on the flange.

2. This kind of wear-resisting type expansion joint through setting up first drum, activity groove, second drum, can play the purpose of protection expansion joint, avoids sand blown by the wind, sunshine direct action on the bellows, has improved the life of bellows, and first drum cooperation second drum can make bellows lateral shifting position simultaneously, avoids the user still to need additionally to install the gag lever post.

Drawings

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

FIG. 2 is a schematic cross-sectional view of a second cylinder of the present invention;

FIG. 3 is an enlarged view of the structure at A in FIG. 1;

fig. 4 is an enlarged schematic view of a portion B in fig. 1.

In the figure: 1. a flange; 2. a bellows; 3. a first cylinder; 4. a movable groove; 5. a first slot; 6. a second cylinder; 7. a second slot; 8. an annular groove; 9. a placement groove; 10. a tension spring; 11. a strip plate; 12. inserting a block; 13. a vertical rod; 14. a round sleeve; 15. a threaded hole; 16. screwing the bolt; 17. and a limiting block.

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. 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.

Examples

Referring to fig. 1-4, a wear-resistant expansion joint comprises two flanges 1 which are symmetrically arranged, one ends of the two flanges 1 adjacent to each other are communicated with a corrugated pipe 2, one end of the flange 1 positioned on the left side is provided with a first cylinder 3, the inner wall of a movable groove 4 is fixedly connected with a limiting block 17, the limiting block 17 is an annular block, the second cylinder 6 can be prevented from moving out of the movable groove 4 by arranging the limiting block 17, the limiting block 17 can scrape sand and stones on the second cylinder 6 when the second cylinder 6 moves in the first cylinder 3, one end of the first cylinder 3 is provided with the movable groove 4, the surface of the first cylinder 3 is provided with a plurality of first slots 5, the movable groove 4 is internally provided with the second cylinder 6, the surface of the second cylinder 6 is provided with a plurality of second slots 7, one ends of the two flanges 1 adjacent to each other are provided with an annular groove 8, the inner wall of the annular groove 8 is provided with a plurality of placing grooves 9, a tension spring 10 is arranged in the placing groove 9, one end of the tension spring 10 is fixedly connected with a strip-shaped plate 11, one side of the strip-shaped plate 11 is fixedly connected with an insertion block 12, the upper surface of the strip-shaped plate 11 is fixedly connected with a vertical rod 13, the upper end of the vertical rod 13 is obliquely arranged, the vertical rod 13 is a metal rod, the vertical rod 13 is conveniently moved downwards by the round sleeve 14 by arranging the upper end of the vertical rod 13 to be obliquely arranged, the practicability is improved, the upper end of the vertical rod 13 penetrates through the inner wall of the placing groove 9 and extends to the outside, the surfaces of the two flanges 1 are provided with a moving mechanism, the moving mechanism comprises two symmetrically arranged round sleeves 14, the round sleeves 14 are sleeved on the surface of the flange 1, the surface of the flange 1 is provided with threaded holes 15, screwing bolts 16 matched with the threaded holes 15 are penetrated on the surface of the round sleeves 14, and the round sleeves 14 can be screwed and fixed on the surface of the flange 1 by arranging the screwing bolts 16, preventing the sleeve 14 from shifting position.

The working principle is as follows: when the device is installed, one end of the first cylinder 3 and one end of the second cylinder 6 extend into the annular groove 8 respectively, then the round sleeve 14 is pushed, the side wall of the round sleeve 14 moves the vertical rod 13 downwards, when the vertical rod 13 moves downwards, the inserting blocks 12 are inserted into the first slot 5 and the second slot 7 respectively, then the first cylinder 3 and the second cylinder 6 are fixed in the annular groove 8, at the time, the first cylinder 3 and the second cylinder 6 can block sand wind and sunlight, when the vertical rod 13 moves downwards, the screwing bolt 16 is taken out of the threaded hole 15 firstly, then the round sleeve 14 is moved away from the flange 1, at the time, the vertical rod 13 loses the limiting effect of the round sleeve 14, the vertical rod 13 moves upwards under the action of the tension spring 10, when the vertical rod 13 moves upwards, the inserting blocks 12 move out of the first cylinder 3 and the second cylinder 6 respectively, the first cylinder 3 and the second cylinder 6 can then be removed from the flange 1.

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. A wear-resistant expansion joint comprises two symmetrically arranged flanges (1);

the method is characterized in that:

the corrugated pipe (2) is communicated with one adjacent end of each of the two flanges (1), a first cylinder (3) is arranged at one end of the flange (1) positioned on the left side, a movable groove (4) is formed in one end of the first cylinder (3), a plurality of first slots (5) are formed in the surface of the first cylinder (3), a second cylinder (6) is arranged in the movable groove (4), a plurality of second slots (7) are formed in the surface of the second cylinder (6), a ring groove (8) is formed in one adjacent end of each of the two flanges (1), a plurality of placing grooves (9) are formed in the inner wall of the ring groove (8), tension springs (10) are arranged in the placing grooves (9), one ends of the tension springs (10) are fixedly connected with strip-shaped plates (11), an insert block (12) is fixedly connected to one side of each strip-shaped plate (11), and vertical rods (13) are fixedly connected to the upper surfaces of the strip-shaped plates (11), the upper end of the vertical rod (13) penetrates through the inner wall of the placing groove (9) and extends to the outside, and moving mechanisms are arranged on the surfaces of the two flanges (1).

2. A wear-resistant expansion joint as claimed in claim 1, wherein: the moving mechanism comprises two symmetrical round sleeves (14), the round sleeves (14) are sleeved on the surface of the flange (1), threaded holes (15) are formed in the surface of the flange (1), and screwing bolts (16) matched with the threaded holes (15) penetrate through the surface of the round sleeves (14).

3. A wear-resistant expansion joint as claimed in claim 1, wherein: the inner wall of the first cylinder (3) is fixedly connected with a limiting block (17), and the limiting block (17) is an annular block.

4. A wear-resistant expansion joint as claimed in claim 1, wherein: the upper end of the vertical rod (13) is obliquely arranged, and the vertical rod (13) is a metal rod.