CN210344673U

CN210344673U - Universal rectangular metal corrugated expansion joint

Info

Publication number: CN210344673U
Application number: CN201921295434.3U
Authority: CN
Inventors: 李敏
Original assignee: Chongqing Minte Metal Products Co Ltd
Current assignee: Chongqing Minte Metal Products Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-17
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a general rectangle metal ripple expansion joint, including the rectangle bellows, rectangle bellows both ends all weld the rectangle takeover, and two rectangle takeovers keep away from rectangle bellows one end and all weld the rectangle flange, two the rectangle takeover lateral wall has welded first rectangle frame and second rectangle frame respectively, and is close to four edge position departments of rectangle bellows between first rectangle frame and the second rectangle frame and all is equipped with pull rod assembly, one of them rectangle takeover inner wall is inserted and is equipped with the water conservancy diversion sleeve pipe, water conservancy diversion sleeve pipe one end is equipped with the expansion part, and expansion part edge position department and rectangle takeover inner wall welded fastening, the welding of the other one end of water conservancy diversion sleeve pipe has the movable frame. The utility model discloses it is crooked to reduce for the rectangular corrugated pipe atress is even, is favorable to promoting the life of rectangular corrugated pipe, combines the movable frame that sets up, promotes the stability of water conservancy diversion sheathed tube, reduces bad friction.

Description

Universal rectangular metal corrugated expansion joint

Technical Field

The utility model relates to an expansion joint technical field especially relates to a general rectangle metal ripple 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. Rectangular expansion joints belong to one of the expansion joints.

The existing rectangular expansion joint has the advantages of general connection stability, inconvenience in disassembly and assembly, and poor friction easily caused by the built-in material guide pipe sleeve, so that the universal rectangular metal corrugated expansion joint is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a universal rectangular metal corrugated expansion joint.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a general rectangle metal ripple expansion joint, includes the rectangle bellows, the rectangle bellows both ends all weld the rectangle takeover, and two rectangle takeovers keep away from rectangle bellows one end and all weld the rectangle flange, two the rectangle takeover lateral wall has welded first rectangle frame and second rectangle frame respectively, and is close to four edge position departments of rectangle bellows between first rectangle frame and the second rectangle frame and all is equipped with the pull rod subassembly, one of them the rectangle takeover inner wall is inserted and is equipped with the water conservancy diversion sleeve pipe, water conservancy diversion sleeve pipe one end is equipped with the expansion part, and expansion part border position department and rectangle takeover inner wall welded fastening, the other one end welding of water conservancy diversion sleeve pipe has the movable frame.

Preferably, the pull rod assembly comprises a U-shaped pull rod, hole groups are formed in positions, close to corners, of the side walls of the first rectangular frame and the second rectangular frame, the U-shaped pull rod sequentially penetrates through the hole groups in the first rectangular frame and the second rectangular frame, external thread parts are arranged at two ends of the U-shaped pull rod, and fastening nuts are screwed at two ends of the U-shaped pull rod.

Preferably, the hole group consists of two round holes arranged at the positions of the side walls of the first rectangular frame and the second rectangular frame, which are close to the corners.

Preferably, four outer walls of the movable frame are all provided with rectangular holes distributed at equal intervals, and the inner walls of the rectangular holes are rotatably connected with rollers.

Preferably, two annular grooves are formed in one sides, away from the rectangular corrugated pipe, of the rectangular flanges, and sealing rubber rings are clamped on the inner walls of the two annular grooves.

Preferably, reinforcing blocks which are distributed equidistantly are welded between the first rectangular frame and the second rectangular frame and between the two rectangular connecting pipes.

The utility model has the advantages that:

through the U type pull rod that sets up, be favorable to promoting joint strength, be favorable to guaranteeing that first rectangle frame and second rectangle frame position are unified, reduce crooked for the rectangle bellows atress is even, is favorable to promoting the life of rectangle bellows, combines the movable frame that sets up, promotes the stability of water conservancy diversion sheathed tube, reduces bad friction.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a general rectangular metal corrugated expansion joint provided by the present invention;

fig. 2 is a schematic structural view of a first rectangular frame of the general rectangular metal corrugated expansion joint provided by the present invention.

In the figure: the device comprises a rectangular flange 1, a rectangular connecting pipe 2, a first rectangular frame 3, a U-shaped pull rod 4, a second rectangular frame 5, a rectangular corrugated pipe 6, a flow guide sleeve 7, a reinforcing block 8, a roller 9, a movable frame 10 and a circular hole 11.

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. 1-2, a general rectangular corrugated metal expansion joint, including rectangular bellows 6, rectangular takeover 2 has all been welded at rectangular bellows 6 both ends, and rectangular flange 1 has all been welded to two rectangular takeover 2 one ends of keeping away from rectangular bellows 6, first rectangle frame 3 and second rectangle frame 5 have been welded respectively to two rectangular takeover 2 lateral walls, and all be equipped with the pull rod subassembly near four edge positions of rectangular bellows 6 between first rectangle frame 3 and the second rectangle frame 5, 2 inner walls of one of them rectangular takeover are inserted and are equipped with guide sleeve 7, guide sleeve 7 one end is equipped with the extension portion, and extension portion edge position department and 2 inner walls welded fastening of rectangular takeover, guide sleeve 7 other one end welding has movable frame 10.

In the utility model, the pull rod component comprises a U-shaped pull rod 4, the positions of the side walls of the first rectangular frame 3 and the second rectangular frame 5, which are close to the corners, are provided with hole groups, the U-shaped pull rod 4 sequentially passes through the hole groups on the first rectangular frame 3 and the second rectangular frame 5, both ends of the U-shaped pull rod 4 are provided with external thread parts, the two ends of the U-shaped pull rod 4 are respectively screwed with a fastening nut, the hole group consists of two round holes 11 which are arranged at the positions of the side walls of the first rectangular frame 3 and the second rectangular frame 5 close to the corners, the four outer walls of the movable frame 10 are respectively provided with rectangular holes which are distributed at equal intervals, and the inner wall of the rectangular hole is rotationally connected with a roller 9, the sides of the two rectangular flanges 1 far away from the rectangular corrugated pipe 6 are both provided with annular grooves, and the inner walls of the two annular grooves are all clamped with sealing rubber rings, and reinforcing blocks 8 which are distributed equidistantly are welded between the first rectangular frame 3 and the second rectangular frame 5 and the two rectangular connecting pipes 2.

The working principle is as follows: during the use, install the expansion joint in suitable pipeline through two rectangle flanges 1, the axial vibration in the material transportation process can be absorbed to rectangle bellows 6, the stability of water conservancy diversion sleeve pipe 7 has been promoted to the movable frame 10 that sets up, it reduces bad friction to combine gyro wheel 9, U type pull rod 4 is favorable to promoting joint strength, make things convenient for the dismouting, be favorable to guaranteeing that first rectangle frame 3 and 5 positions of second rectangle frame are unified, reduce crooked, make the stress of rectangle bellows 6 even, be favorable to promoting the life of rectangle bellows 6.

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. A universal rectangular metal corrugated expansion joint comprises a rectangular corrugated pipe (6), and is characterized in that rectangular connecting pipes (2) are welded at both ends of the rectangular corrugated pipe (6), and one ends of the two rectangular connecting pipes (2) far away from the rectangular corrugated pipe (6) are respectively welded with a rectangular flange (1), the side walls of the two rectangular connecting pipes (2) are respectively welded with a first rectangular frame (3) and a second rectangular frame (5), and pull rod components are arranged between the first rectangular frame (3) and the second rectangular frame (5) and close to the four edges of the rectangular corrugated pipe (6), a flow guide sleeve (7) is inserted into the inner wall of one of the rectangular connecting pipes (2), one end of the flow guide sleeve (7) is provided with an expansion part, and the edge position of the expansion part is welded and fixed with the inner wall of the rectangular connecting pipe (2), and the other end of the flow guide sleeve (7) is welded with a movable frame (10).

2. The universal rectangular metal corrugated expansion joint as claimed in claim 1, wherein the tie rod assembly comprises a U-shaped tie rod (4), and the side walls of the first rectangular frame (3) and the second rectangular frame (5) are provided with hole groups near the corners, the U-shaped tie rod (4) sequentially passes through the hole groups on the first rectangular frame (3) and the second rectangular frame (5), the two ends of the U-shaped tie rod (4) are provided with external thread portions, and the two ends of the U-shaped tie rod (4) are screwed with fastening nuts.

3. A universal rectangular metal bellows expansion joint according to claim 2, wherein the set of holes consists of two round holes (11) opening in the side walls of the first (3) and second (5) rectangular frames near the corners.

4. A universal rectangular metal corrugated expansion joint according to claim 3, wherein four outer walls of the movable frame (10) are provided with rectangular holes distributed at equal intervals, and the inner walls of the rectangular holes are rotatably connected with the rollers (9).

5. The universal rectangular metal corrugated expansion joint as claimed in claim 4, wherein the rectangular flanges (1) are provided with annular grooves on the sides away from the rectangular corrugated pipe (6), and sealing rubber rings are clamped on the inner walls of the two annular grooves.

6. A universal rectangular metal bellows expansion joint according to claim 5, wherein the first rectangular frame (3) and the second rectangular frame (5) and the two rectangular connecting pipes (2) are welded with reinforcing blocks (8) distributed equidistantly.