CN219159820U - Double-ripple metal expansion joint - Google Patents

Abstract

The utility model relates to a dual-corrugated metal expansion joint, which comprises a pipe body, wherein a mounting plate is arranged on one side of the outer part of the pipe body, a plurality of first screws are connected in a penetrating manner in the mounting plate, a fixing plate is arranged on one side adjacent to the mounting plate, a second screw is connected in the fixing plate, one end of the second screw is fixedly connected with a baffle, one side of the pipe body is connected with an expansion joint, one end of the expansion joint is fixedly connected with a movable ring, one end of the movable ring is embedded in the inner part of the pipe body, and a metal gasket is arranged at the joint of one side of the inner part of the pipe body and the expansion joint. According to the utility model, the expansion joint capable of moving in the pipe body is arranged, so that the deformation range of the expansion joint can be enlarged when the pipe body expands, the pressure of the pipe body on the expansion joint is reduced, the expansion joint is prevented from being deformed and damaged due to overlarge pressure on the expansion joint, and the number of the expansion joints can be freely added or removed according to the requirement, so that the expansion joint can be enabled to be capable of coping with the deformation of the pipe body in a more reasonable pressure range.

Description

Double-ripple metal expansion joint

Technical Field

The utility model relates to a dual-ripple metal expansion joint, and belongs to the technical field of fan expansion joints.

Background

Expansion joints refer to flexible elements that effectively function 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 is easy to deform, the thermal expansion difference of the tube and the shell caused by different wall temperatures can be compensated, and the axial load of the tube and the shell is reduced, so that the temperature difference stress of the tube, the tube plate and the shell is reduced, and the damage caused by strength damage, instability damage and tube pull-out damage is avoided.

At present, the length of the dual-corrugated expansion joint for a fan is fixed, the dual-corrugated expansion joint cannot be adjusted according to the needs during installation, the expansion joint is often located in a larger deformation zone in a region with higher heat and higher pressure in a pipe body, and the expansion joint is easy to deform or bend and leak the pipe body after long time, so that the dual-corrugated metal expansion joint is needed.

Disclosure of Invention

The utility model aims to provide a double-corrugated metal expansion joint, which can expand the deformation range of the expansion joint when the pipe body is expanded by arranging the expansion joint capable of moving in the pipe body, reduce the pressure of the pipe body on the expansion joint, prevent the expansion joint from being deformed and damaged due to overlarge pressure on the expansion joint, and freely add or remove the expansion joint according to the requirement, so that the expansion joint can be subjected to the deformation of the pipe body in a more reasonable pressure range, and the problems in the prior art are solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a double wave metal expansion joint, includes the body, body outside one side is equipped with the mounting panel, the inside through connection of mounting panel has a plurality of screw rods one, the adjacent one side of mounting panel is equipped with the fixed plate, fixed plate internally connected has screw rod two, screw rod two one end and baffle fixed connection, body one side is connected with the expansion joint, expansion joint one end fixedly connected with expansion ring, expansion ring one end imbeds in the body is inside, body inside one side with expansion joint junction is equipped with metal washer, expansion ring one end is contradicted with rubber seal.

Further, the height of the fixing plate is larger than that of the mounting plate, and the second screw is arranged on the outer side of the mounting plate.

Further, the mounting plate is annular and arranged on the periphery of the pipe body, the first screw rod is arranged around the periphery of the pipe body, the baffle is arranged on one side of the center of the pipe body, and the second screw rod, the fixing plate and the baffle are two groups and are symmetrically arranged on two sides of the pipe body.

Further, the expansion joint is externally provided with an arc-shaped bulge, one side of the expansion joint is provided with a positioning bulge, the positioning bulge is annular, the positioning bulges are connected in an embedded manner, one side of the expansion joint is provided with an annular groove for accommodating the positioning bulge, and the inside of the annular groove is provided with a metal sealing ring.

Further, the diameter of the movable ring is smaller than that of the pipe body and that of the expansion joint, the joint of the outer part of the movable ring and the pipe body is provided with the same metal gasket as that on the pipe body, and the metal gaskets are respectively arranged on the inner side and the outer side of the movable ring.

Further, the inside recess that holds that the expansion ring passed through that has seted up of body, the expansion ring with the body is contradicted, the expansion ring is in the inside sliding connection of body.

The beneficial effects of the utility model are as follows:

1. through set up the expansion ring on the expansion joint, the expansion ring embedding is in the body, when the scope of body thermal expansion is great, the expansion joint can promote the expansion ring and remove in the body to reduce the pressure of expansion joint, prevent that expansion joint warp great and appear phenomenons such as fracture, extension expansion joint's life, and all be equipped with metal gasket on expansion ring and the body, metal gasket can increase the leakproofness between expansion ring and the body, and expansion ring one end can press in rubber seal when the body is expanded simultaneously, thereby can improve the leakproofness when expansion ring and body are connected, prevents to appear leaking between body and the expansion ring.

2. Through setting up the location arch on the expansion joint, the location arch can be with each expansion joint interconnect to can freely adjust the installation quantity of expansion joint as required when using, make the expansion joint respond to the pressure of pipe body inflation in suitable deformation range, prevent that the expansion joint warp too big and appear leaking or damaging the phenomenon, and be equipped with the ring channel on each location arch, be equipped with metal seal circle in the ring channel, metal seal circle can increase the leakproofness of connecting between the location arch, thereby increase the leakproofness between the expansion joint.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain the utility model.

FIG. 1 is a front view of a dual damascene metal expansion joint of the present utility model;

FIG. 2 is a cross-sectional view of a dual damascene metal expansion joint of the present utility model;

FIG. 3 is a cross-sectional view of an expansion joint of a dual damascene metal expansion joint of the present utility model;

FIG. 4 is a side view of an expansion joint of a dual damascene metal expansion joint of the present utility model;

FIG. 5 is an enlarged view of the area A of a dual damascene metal expansion joint of the present utility model;

FIG. 6 is an enlarged view of the area B of a dual damascene metal expansion joint of the present utility model;

reference numerals in the drawings: 1. a tube body; 2. a mounting plate; 3. a first screw; 4. a fixing plate; 5. a second screw; 6. a baffle; 7. an expansion joint; 8. a movable ring; 9. a metal gasket; 10. a rubber seal ring; 11. positioning the bulge; 12. an annular groove; 13. and (5) a metal sealing ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1: referring to fig. 1, 2, 3 and 5, the present utility model provides a technical solution:

the utility model provides a double wave metal expansion joint, includes body 1, body 1 outside one side is equipped with mounting panel 2, the inside through connection of mounting panel 2 has a plurality of screw rods one 3, the adjacent one side of mounting panel 2 is equipped with fixed plate 4, fixed plate 4 internal connection has screw rods two 5, 5 one end and baffle 6 fixed connection of screw rod, body 1 one side is connected with expansion joint 7, expansion joint 7 one end fixedly connected with expansion joint 8, 8 one end of expansion joint imbeds in body 1 is inside, body 1 inside one side with expansion joint 7 junction is equipped with metal gasket 9, 8 one end of expansion joint contradicts with rubber seal 10.

Specifically, the height of the fixing plate 4 is greater than that of the mounting plate 2, the second screw 5 is arranged on the outer side of the mounting plate 2, the fixing plate 4 and the second screw 5 can be used for connecting the pipe body 1 and positioning and clamping the expansion joint 7, and the phenomenon that the expansion joint 7 is misplaced or distorted when the pipe body 1 is expanded and deformed is prevented.

Specifically, mounting panel 2 is the annular and locates body 1 a week, screw one 3 centers on body 1 a week sets up, baffle 6 is located body 1 center one side, screw two 5 fixed plate 4 with baffle 6 is shared two sets of and is located symmetrically body 1 both sides, screw one 3 can be with expansion joint 7 even with body 1 connection, makes expansion joint 7 and body 1 connection seal more even.

Specifically, the diameter of the movable ring 8 is smaller than that of the pipe body 1 and that of the expansion joint 7, the joint between the outer part of the movable ring 8 and the pipe body 1 is provided with a metal gasket 9 identical to that of the pipe body 1, the metal gaskets 9 are respectively arranged on the inner side and the outer side of the movable ring 8, a groove for accommodating the movable ring 8 to pass through is formed in the pipe body 1, the movable ring 8 is in contact with the pipe body 1, the movable ring 8 is in sliding connection with the inner part of the pipe body 1, the metal gasket 9 can increase the tightness between the movable ring 8 and the pipe body 1, and leakage between the movable ring 8 and the pipe body 1 is prevented when the movable ring 8 moves in the pipe body 1.

Example 2: referring to fig. 2, 3, 4 and 6, the difference between the present embodiment and embodiment 1 is that: the expansion joint 7 is externally provided with arc-shaped bulges, one side of the expansion joint 7 is provided with positioning bulges 11, the positioning bulges 11 are annular, the positioning bulges 11 are connected in an embedded manner, one side of the expansion joint 7 is provided with annular grooves 12 for accommodating the positioning bulges 11, the inside of the annular grooves 12 is provided with metal sealing rings 13, and the positioning bulges 11 can mutually connect the expansion joints 7, so that the installation quantity of the expansion joints 7 can be freely adjusted as required during use, and the expansion joint 7 can respond to the expansion pressure of the pipe 1 in a proper deformation range.

The working principle of the utility model is as follows: when the expansion joint is used, when the expansion range of the pipe body 1 is larger, the expansion joint 7 can push the movable ring 8 to move in the pipe body 1, so that the pressure of the expansion joint 7 is reduced, the phenomena of fracture and the like caused by larger deformation of the expansion joint 7 are prevented, the service life of the expansion joint 7 is prolonged, the movable ring 8 and the pipe body are both provided with the metal gasket 9, the metal gasket 9 can increase the tightness between the movable ring 8 and the pipe body 1, and meanwhile, one end of the movable ring 8 can be pressed in the rubber sealing ring 10 when the pipe body 1 expands, so that the tightness when the movable ring 8 is connected with the pipe body 1 can be improved, and the leakage phenomenon between the pipe body 1 and the movable ring 8 is prevented; through setting up location arch 11 on expansion joint 7, location arch 11 can be with each expansion joint 7 interconnect to can freely adjust the installation quantity of expansion joint 7 as required when using, make things convenient for expansion joint 7 to respond to the pressure of pipe 1 inflation in suitable deformation range, prevent expansion joint 7 deformation too big and appear leaking or damaging the phenomenon, and be equipped with ring channel 12 on each location arch 11, be equipped with metal seal 13 in the ring channel 12, metal seal 13 can increase the leakproofness of connecting between the location arch 11, thereby increase the leakproofness between the expansion joint 7.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a double wave metal expansion joint, includes body (1), its characterized in that: the utility model discloses a pipe body (1) outside one side is equipped with mounting panel (2), inside through connection of mounting panel (2) has a plurality of screw rods one (3), adjacent one side of mounting panel (2) is equipped with fixed plate (4), fixed plate (4) internally connected with screw rod two (5), screw rod two (5) one end and baffle (6) fixed connection, pipe body (1) one side is connected with expansion joint (7), expansion joint (7) one end fixedly connected with expansion ring (8), expansion ring (8) one end imbed in inside pipe body (1), pipe body (1) inside one side with expansion joint (7) junction is equipped with metal washer (9), expansion ring (8) one end is contradicted with rubber seal (10).

2. The dual damascene metal expansion joint of claim 1, wherein: the height of the fixing plate (4) is larger than that of the mounting plate (2), and the second screw rod (5) is arranged on the outer side of the mounting plate (2).

3. The dual damascene metal expansion joint of claim 1, wherein: the mounting plate (2) is annular and is arranged on the periphery of the pipe body (1), the first screw rod (3) is arranged around the periphery of the pipe body (1), the baffle (6) is arranged on one side of the center of the pipe body (1), and the second screw rod (5), the fixing plate (4) and the baffle (6) are arranged on two groups in total and symmetrically on two sides of the pipe body (1).

4. The dual damascene metal expansion joint of claim 1, wherein: the expansion joint is characterized in that arc-shaped protrusions are arranged outside the expansion joint (7), positioning protrusions (11) are arranged on one side of the expansion joint (7), the positioning protrusions (11) are annular, the positioning protrusions (11) are connected in an embedded mode, an annular groove (12) for accommodating the positioning protrusions (11) is formed in one side of the expansion joint (7), and a metal sealing ring (13) is arranged inside the annular groove (12).

5. The dual damascene metal expansion joint of claim 1, wherein: the diameter of the movable ring (8) is smaller than that of the pipe body (1) and that of the expansion joint (7), the joint of the outer part of the movable ring (8) and the pipe body (1) is provided with the same metal gasket (9) as that on the pipe body (1), and the metal gaskets (9) are respectively arranged on the inner side and the outer side of the movable ring (8).

6. The dual damascene metal expansion joint of claim 1, wherein: the pipe body (1) is internally provided with a groove for accommodating the movable ring (8) to pass through, the movable ring (8) is in conflict with the pipe body (1), and the movable ring (8) is in sliding connection with the inside of the pipe body (1).

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