CN217030411U

CN217030411U - Corrugated expansion joint of metal sleeve

Info

Publication number: CN217030411U
Application number: CN202220593953.3U
Authority: CN
Inventors: 周树鹏
Original assignee: Jiangsu Yuzhou Pipeline Equipment Co ltd
Current assignee: Jiangsu Yuzhou Pipeline Equipment Co ltd
Priority date: 2022-03-17
Filing date: 2022-03-17
Publication date: 2022-07-22
Anticipated expiration: 2032-03-17

Abstract

The utility model relates to a metal sleeve corrugated expansion joint which comprises two flanges and corrugated pipes, wherein annular blocks are movably arranged inside the flanges, two positioning mechanisms are arranged inside the flanges, three mounting blocks are fixedly arranged outside the flanges, nuts are fixedly arranged on the front surfaces of the mounting blocks, bolts are movably arranged on the front surfaces of the nuts, one ends of the bolts penetrate through the front side nuts, the front side mounting blocks, the rear side nuts and the rear side mounting blocks and extend to the rear sides of the rear side mounting blocks, and one opposite sides of the two annular blocks are communicated with the corrugated pipes. This metal sleeve ripple expansion joint through setting up positioning mechanism, is convenient for carry out the dismouting with the flange annular piece to be convenient for change the bellows, the operation is comparatively simple, saves time and laborsaving, has improved maintenance efficiency, so, this device has the advantage of being convenient for change the bellows, has made things convenient for the use.

Description

Corrugated expansion joint of metal sleeve

Technical Field

The utility model relates to the technical field of expansion joints, in particular to a metal sleeve corrugated expansion joint.

Background

The expansion joint is a flexible element which can effectively compensate axial deformation, for example, the expansion joint welded on a shell of a fixed tube-plate heat exchanger has large axial flexibility and is easy to deform, can compensate 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, wherein the waveform expansion joint is most widely applied.

Bellows expansion joint is an expansion joint of making with metal bellows, and the bellows on the bellows expansion joint can produce the loss at the in-process of long-term use, and in order to reduce the bellows damage or the ageing condition that leads to the medium leakage in the pipeline takes place, need regularly change the bellows, and the staff is dismantled the whole pipeline of following of bellows expansion joint usually and is got off and change, and the operation is comparatively troublesome, wastes time and difficultly, has reduced maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides the metal sleeve corrugated expansion joint which has the advantages of convenience in replacement of corrugated pipes and the like, and solves the problems that the corrugated expansion joint is generally dismounted from a pipeline by a worker for replacement, the operation is troublesome, time and labor are wasted, and the maintenance efficiency is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: a metal sleeve corrugated expansion joint comprises two flanges and corrugated pipes, wherein annular blocks are movably mounted inside the flanges, two positioning mechanisms are arranged inside the flanges, three mounting blocks are fixedly mounted outside the flanges, nuts are fixedly mounted on the front faces of the mounting blocks, bolts are movably mounted on the front faces of the nuts, one ends of the bolts penetrate through and extend to the front side nuts, the front side mounting blocks, the rear side nuts and the rear side mounting blocks and extend to the rear sides of the rear side mounting blocks, and one opposite sides of the two annular blocks are communicated with the corrugated pipes;

positioning mechanism includes the fixed plate, the inside through hole of flange is run through and extended to one end is all seted up to the left and right sides of flange, fixed plate fixed connection is in the inside of through hole, the equal movable mounting in one side that the fixed plate was carried on the back mutually has one end to run through and extends to the threaded rod of the relative one side of fixed plate, the equal fixed mounting in the left and right sides of annular piece has the butt joint piece that extends to the flange inside, the outside movable mounting of threaded rod has the screwed pipe that extends to the butt joint piece inside.

Furthermore, the inside fixed mounting of flange has the sealing washer that contacts with the annular piece, and three the distribution that the equidistance is equal in the outside of flange of installation piece.

Further, the through-hole that one end runs through and extends to the relative one side of fixed plate is all seted up to the one side that the fixed plate carried on the back mutually, the inside fixed mounting of through-hole has the bearing, the threaded rod passes through the bearing and is connected with the fixed plate rotation, the equal fixed mounting in one side that the threaded rod carried on the back mutually has the hand wheel.

Further, threaded holes are formed in one side, back to back, of the threaded pipe and are matched with the threaded rods.

Furthermore, the top and the bottom of through hole all install the spacing groove of seting up on the flange, the top and the equal fixed mounting in bottom of screwed pipe have the gag lever post that extends to the spacing inslot portion, the movement range phase-match of spacing groove and gag lever post.

Furthermore, the inner wall left and right sides of the flange is provided with a butt joint groove matched with the butt joint block, and one side of the butt joint block back to the back is provided with a positioning groove matched with the threaded pipe.

Furthermore, the front of two installation pieces all seted up with the assorted jack of bolt, nut and bolt phase-match.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this metal sleeve ripple expansion joint through setting up positioning mechanism, is convenient for carry out the dismouting with ring-shaped piece and flange to be convenient for change the bellows, the operation is comparatively simple, saves time and laborsaving, has improved maintenance efficiency, so, this device has the advantage of being convenient for change the bellows, has made things convenient for the use.

2. This metal sleeve ripple expansion joint through setting up spacing groove and gag lever post, can make the screwed pipe remove more steadily, has avoided the screwed pipe to produce the condition emergence of rotation, so, this device has the advantage that the mobility stability is good, has made things convenient for the use.

Drawings

FIG. 1 is a bottom view of the present invention;

FIG. 2 is an enlarged view of the utility model at A in FIG. 1;

FIG. 3 is a schematic view of the present invention.

In the figure: the device comprises a flange 1, a sealing ring 11, an annular block 2, a positioning mechanism 3, a fixing plate 31, a threaded rod 32, a hand wheel 321, a butt joint block 33, a threaded pipe 34, a limiting groove 341, a limiting rod 342, a mounting block 4, a nut 5, a bolt 6 and a corrugated pipe 7.

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. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-3, in the present embodiment, the corrugated expansion joint of the metal sleeve includes two flanges 1 and two corrugated pipes 7, a ring block 2 is movably mounted inside the flange 1, two positioning mechanisms 3 are disposed inside the flange 1, three mounting blocks 4 are fixedly mounted outside the flange 1, a nut 5 is fixedly mounted on a front surface of the mounting block 4, a bolt 6 is movably mounted on a front surface of the nut 5, one end of the bolt penetrates through and extends to the front nut 5, the front mounting block 4, the rear nut 5 and the rear mounting block 4 and extends to a rear side of the rear mounting block 4, and one opposite side of each of the two ring blocks 2 is communicated with the corrugated pipe 7;

positioning mechanism 3 includes fixed plate 31, the one end of all having seted up in the left and right sides of flange 1 runs through and extends to the inside through-hole of flange 1, fixed plate 31 fixed connection is in the inside of through-hole, the equal movable mounting in one side that fixed plate 31 carried on the back mutually has one end to run through and extends to the threaded rod 32 of the relative one side of fixed plate 31, the equal fixed mounting in the left and right sides of annular piece 2 has the butt joint piece 33 that extends to flange 1 inside, the outside movable mounting of threaded rod 32 has the screwed pipe 34 that extends to butt joint piece 33 inside.

Specifically, by rotating the four threaded rods 32, the four threaded rods 32 all drive the threaded pipes 34 to move out of the butt joint blocks 33, and then the two annular blocks 2 and the corrugated pipe 7 are moved out of the two flanges 1, so that the corrugated pipe 7 can be disassembled, otherwise, the corrugated pipe 7 can be installed, the operation is simple, time and labor are saved, and the maintenance efficiency is improved.

In this embodiment, the sealing ring 11 contacting with the annular block 2 is fixedly installed inside the flange 1, the sealing performance can be improved by the sealing ring 11, and the three installation blocks 4 are distributed outside the flange 1 at equal intervals.

In this embodiment, the one end of all having seted up the through-hole that one end runs through and extends to the relative one side of fixed plate 31 in the one side that fixed plate 31 carried on the back mutually, and the inside fixed mounting of through-hole has the bearing, and threaded rod 32 passes through the bearing and is connected with fixed plate 31 rotation, and threaded rod 32 carries on the back the equal fixed mounting in one side that has hand wheel 321, and through rotating hand wheel 321, hand wheel 321 can drive threaded rod 32 and rotate.

In this embodiment, threaded hole is all seted up to one side that screwed pipe 34 carried on the back mutually, and threaded hole and threaded rod 32 phase-match drive screwed pipe 34 when threaded rod 32 rotates and remove.

In this embodiment, the spacing groove 341 of seting up on flange 1 is all installed to the top and the bottom of through-hole, and the equal fixed mounting in top and the bottom of screwed pipe 34 has the gag lever post 342 that extends to the inside of spacing groove 341, and the displacement range phase-match of spacing groove 341 and gag lever post 342 drives two gag lever posts 342 when screwed pipe 34 removes and all removes in the inside of spacing groove 341, can make screwed pipe 34 remove more steadily, has avoided screwed pipe 34 to produce the condition of rotation and has taken place.

In this embodiment, flange 1's the inner wall left and right sides all seted up with butt joint piece 33 assorted butt joint groove, and two butt joint pieces 33 all insert flange 1's inside through butt joint groove, and butt joint piece 33 one side of carrying on the back mutually all seted up with screwed pipe 34 assorted constant head tank, and screwed pipe 34 inserts the inside of butt joint piece 33 through the constant head tank.

In this embodiment, the assorted jack with bolt 6 has all been seted up in the front of two installation pieces 4, and bolt 6 inserts the inside of two installation pieces 4 through the jack, and nut 5 and bolt 6 phase-matches, nut 5 and 6 threaded connection of bolt can carry out the dismouting.

The working principle of the above embodiment is as follows:

(1) the worker can drive the threaded rod 32 to rotate by rotating the hand wheel 321, the threaded rod 32 drives the threaded pipe 34 to move out of the butt joint block 33, when the four threaded pipes 34 are all moved out of the butt joint block 33, the two annular blocks 2 and the corrugated pipe 7 are moved out of the two flanges 1, the corrugated pipe 7 can be disassembled, the two replaced annular blocks 2 and the corrugated pipe 7 are inserted into the two flanges 1, the four butt joint blocks 33 are inserted into the two flanges 1, the hand wheel 321 is rotated reversely, the hand wheel 321 can drive the threaded rod 32 to rotate reversely, the threaded rod 32 drives the threaded pipe 34 to be inserted into the butt joint block 33, when the four butt joint blocks 33 are all inserted into the threaded pipes 34, the corrugated pipe 7 can be installed, the corrugated pipe 7 can be replaced conveniently, the operation is simple, time and labor are saved, and the maintenance efficiency is improved, so that the device has the advantage of convenience in replacing the corrugated pipe 7 and is convenient to use;

(2) when screwed pipe 34 removed, screwed pipe 34 drove two gag lever posts 342 and all remove in the inside of spacing groove 341, can make screwed pipe 34 remove more steadily, has avoided screwed pipe 34 to produce the rotatory condition and has taken place, so, this device has the good advantage of mobility stability, has made things convenient for the use.

It should be noted that, in this document, relational terms such as first and second, and the like are 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a metal sleeve ripple expansion joint, includes that quantity is flange (1) and bellows (7) two, its characterized in that: the corrugated pipe is characterized in that annular blocks (2) are movably mounted inside the flange (1), two positioning mechanisms (3) are arranged inside the flange (1), three mounting blocks (4) are fixedly mounted outside the flange (1), nuts (5) are fixedly mounted on the front faces of the mounting blocks (4), bolts (6) with one ends penetrating through and extending to the front side nuts (5), the front side mounting blocks (4), the rear side nuts (5) and the rear side mounting blocks (4) and extending to the rear sides of the rear side mounting blocks (4) are movably mounted on the front faces of the nuts (5), and one opposite sides of the two annular blocks (2) are communicated with the corrugated pipe (7);

positioning mechanism (3) are including fixed plate (31), the left and right sides of flange (1) has all been seted up one end and has been run through and extend to the inside through hole of flange (1), fixed plate (31) fixed connection is in the inside of through hole, the equal movable mounting in one side that fixed plate (31) carried on the back mutually has one end to run through and extend to threaded rod (32) of fixed plate (31) relative one side, the equal fixed mounting in the left and right sides of annular piece (2) has butt joint piece (33) that extends to flange (1) inside, the outside movable mounting of threaded rod (32) has screwed pipe (34) that extends to butt joint piece (33) inside.

2. The metal sleeve corrugated expansion joint as claimed in claim 1, wherein: the inside fixed mounting of flange (1) has sealing washer (11) that contact with annular piece (2), and is three the distribution of the equal equidistance of installation piece (4) is in the outside of flange (1).

3. A metal sleeve corrugated expansion joint as claimed in claim 1, wherein: one end of the through hole is penetrated and extends to one side of the fixing plate (31) opposite to the other side is arranged on one side of the fixing plate (31), a bearing is arranged in the through hole, the threaded rod (32) is rotatably connected with the fixing plate (31) through the bearing, and a hand wheel (321) is fixedly arranged on one side of the threaded rod (32) opposite to the other side.

4. The metal sleeve corrugated expansion joint as claimed in claim 1, wherein: threaded holes are formed in the opposite sides of the threaded pipes (34), and the threaded holes are matched with the threaded rods (32).

5. A metal sleeve corrugated expansion joint as claimed in claim 1, wherein: the top and the bottom of through hole all install establish spacing groove (341) on flange (1), the top and the equal fixed mounting in bottom of screwed pipe (34) have gag lever post (342) that extend to inside spacing groove (341), the displacement range phase-match of spacing groove (341) and gag lever post (342).

6. A metal sleeve corrugated expansion joint as claimed in claim 1, wherein: the inner wall left and right sides of flange (1) all seted up with butt joint piece (33) assorted butt joint groove, butt joint piece (33) one side of carrying on the back mutually all seted up with screwed pipe (34) assorted constant head tank.

7. A metal sleeve corrugated expansion joint as claimed in claim 1, wherein: the front of two installation piece (4) all seted up with bolt (6) assorted jack, nut (5) and bolt (6) phase-match.