CN219655552U

CN219655552U - Material returning leg metal octagonal expansion joint

Info

Publication number: CN219655552U
Application number: CN202321010545.1U
Authority: CN
Inventors: 丁卫东; 校沐龙; 朱苏祥
Original assignee: Jiangsu Zhengfei Electric Power Equipment Co ltd
Current assignee: Jiangsu Zhengfei Electric Power Equipment Co ltd
Priority date: 2023-04-28
Filing date: 2023-04-28
Publication date: 2023-09-08
Anticipated expiration: 2033-04-28

Abstract

The utility model provides a return leg metal octagonal expansion joint which comprises expansion joint pipes, wherein positioning plates are fixed outside two sides of each expansion joint pipe at equal intervals, the number of the positioning plates is eight, connecting pipe bodies are fixed on two sides of each expansion joint pipe, flange plates are fixed on one side of each connecting pipe body, and clamping grooves are formed in the two flange plates. According to the utility model, a user of the return leg metal octagonal expansion joint is fixedly connected with two sides of the inner part of the water pipe through the two flange plates, after the installation is finished, solid impurities in water can be filtered through the filter plates which are clamped and installed inside the two flange plates in the using process, the solid impurities are prevented from being wrapped and impacted into the inner part of the expansion joint by water flow to damage the inner part of the expansion joint, the strength of the whole pipeline can be increased through the reinforcing rod fixedly connected between the positioning plate and the expansion joint, and the phenomenon that the pipeline is low in strength and is washed down in the water flow conveying process is avoided.

Description

Material returning leg metal octagonal expansion joint

Technical Field

The utility model relates to the field of expansion joints, in particular to a return leg metal octagonal expansion joint.

Background

Expansion joints are also conventionally known as compensators, or telescopic joints. The corrugated pipe comprises a corrugated pipe forming a working main body, and accessories such as an end pipe, a bracket, a flange, a conduit and the like. Expansion joints are a flexible structure provided on the vessel shell or pipe in order to compensate for additional stresses caused by temperature differences and mechanical vibrations. The effective expansion and contraction deformation of the corrugated pipe of the working main body is utilized to absorb the dimensional changes of pipelines, ducts, containers and the like caused by expansion due to heat, contraction due to cold and the like, or compensate the axial, transverse and angular displacement of the pipelines, ducts, containers and the like. The heat-insulating pipe can also be used for noise reduction, vibration reduction and heat supply, and in order to prevent the pipeline from deforming or being damaged due to thermal elongation or temperature stress when the heat-insulating pipe is heated, a compensator needs to be arranged on the pipeline to compensate the thermal elongation of the pipeline, so that the stress of the pipe wall and acting force acting on a valve element or a support structure are reduced.

As the expansion joint is used as an elastic compensation element capable of freely stretching, the expansion joint has the advantages of reliable work, good performance, compact structure and the like, and is widely applied to the departments of chemical industry, metallurgy, nuclear energy and the like. The expansion joint used in the container has various forms, and the expansion joint is most widely used in the form of U-shaped expansion joint in terms of the shape of corrugation, and then omega-shaped expansion joint, C-shaped expansion joint and the like are adopted. The expansion joint used on the pipeline is divided into a universal type, a pressure balance type, a hinge type, a universal joint type and the like in terms of structural compensation.

In the using process of the existing return leg metal octagonal expansion joint, if solid impurities exist in water flow conveyed inside the expansion joint pipe due to the shape of the expansion joint pipe, the inner wall of the expansion joint pipe can be possibly damaged due to impact caused by the fact that the water flow is wrapped and clamped by the expansion joint pipe.

Therefore, it is necessary to provide a return leg metal octagonal expansion joint to solve the above technical problems.

Disclosure of Invention

The utility model provides a return leg metal octagonal expansion joint, which solves the problem that the inner wall of an expansion joint pipe is possibly damaged due to impact caused by the fact that water flow is wrapped and clamped by the shape of the expansion joint pipe if solid impurities exist in water flow conveyed in the expansion joint pipe in the use process of the existing return leg metal octagonal expansion joint.

In order to solve the technical problems, the utility model provides: the utility model provides a feed back leg metal octagonal expansion joint, includes the expansion joint pipe, the outside equal equidistance in both sides of expansion joint pipe is fixed with the locating plate, and the quantity of locating plate is eight, the both sides of expansion joint pipe all are fixed with the connecting pipe body, two one side of connecting pipe body all is fixed with the ring flange, two the draw-in groove has all been seted up to the inside of ring flange, the filter plate is installed through the draw-in groove block to the inside of ring flange, the both sides of filter plate all are fixed with the angle bar.

Preferably, the inside of angle bar is offered threaded hole, the filter plate passes through the inside bolted connection of angle bar and draw-in groove.

Preferably, sealing rubber rings are fixed on the outer walls of the two flange plates.

Preferably, positioning disks are fixed on the outer parts of the two connecting pipe bodies, and reinforcing rods are fixed on the inner walls of the positioning disks and the expansion joint pipes at equal intervals.

Preferably, the fixing rods penetrate through the four positioning plates, the number of the fixing rods is four, and threaded rods are fixed at one ends of the four fixing rods.

Preferably, the four threaded rods penetrate through the inner parts of the other four positioning plates, and nuts are connected to the outer parts of the four threaded rods in a threaded mode.

Compared with the related art, the return leg metal octagonal expansion joint provided by the utility model has the following beneficial effects:

the beneficial effects of the utility model are as follows: the user carries out fixed connection through the inside both sides of two ring flanges and water pipe, after the installation, can filter the solid impurity in the aquatic through the inside block filter plate of two ring flanges installation in the in-process of using, avoids solid impurity to wrap up in the inside of striking into the expansion joint pipe by rivers and causes the damage to the inside of expansion joint pipe.

Drawings

FIG. 1 is a schematic diagram of a metallic octagonal expansion joint with return legs according to a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of the connection structure of the flange and the aluminum plate shown in FIG. 1;

FIG. 3 is a schematic view of the expansion joint and connecting pipe body of FIG. 1.

In the figure: 1. expanding the joint pipe; 2. a positioning plate; 3. a fixed rod; 4. a nut; 5. a connection pipe body; 6. a flange plate; 7. a clamping groove; 8. a filter plate; 9. angle iron; 10. sealing the rubber ring; 11. a positioning plate; 12. a reinforcing rod; 13. a threaded rod.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2 and fig. 3 in combination, fig. 1 is a schematic structural diagram of a preferred embodiment of a metallic octagonal expansion joint with a feed back leg according to the present utility model; FIG. 2 is a schematic view of the connection structure of the flange and the aluminum plate shown in FIG. 1; FIG. 3 is a schematic view of the expansion joint and connecting pipe body of FIG. 1. The metal octagonal expansion joint with the feed back legs comprises expansion joint pipes 1, wherein positioning plates 2 are fixed at equal intervals on the outer parts of two sides of the expansion joint pipes 1, the number of the positioning plates 2 is eight, connecting pipe bodies 5 are fixed on the two sides of the expansion joint pipes 1, flange plates 6 are fixed on one sides of the two connecting pipe bodies 5, clamping grooves 7 are formed in the two flange plates 6, filter plates 8 are installed in the flange plates 6 in a clamping mode through the clamping grooves 7, and angle irons 9 are fixed on the two sides of the filter plates 8;

the user carries out fixed connection through the inside both sides of two ring flanges 6 and water pipe, after the installation, can filter the solid impurity in the aquatic through the filter plate 8 of the inside block installation of two ring flanges 6 in the in-process of use, avoids solid impurity to wrap up in by rivers and hold in the inside that assaults into expansion joint pipe 1 and causes the damage to the inside of expansion joint pipe 1.

The inside of the angle iron 9 is provided with a threaded hole, and the filter plate 8 is connected with the inside of the clamping groove 7 through the angle iron 9 by bolts;

the filter plate 8 is connected with the clamping groove 7 in the flange plate 6 through a threaded hole in the angle iron 9 through bolts.

The outer walls of the two flanges 6 are fixed with sealing rubber rings 10;

the sealing rubber ring 10 can avoid leakage after the flange plate 6 is connected with an external pipeline.

The outer parts of the two connecting pipe bodies 5 are respectively fixed with a positioning disk 11, and reinforcing rods 12 are fixed on the inner wall between the positioning disk 11 and the expansion joint pipe 1 at equal intervals;

the strength of the whole pipeline can be enhanced through the reinforcing rod 12 fixedly connected between the positioning disc 11 and the expansion joint pipe 1, and the phenomenon that the low strength of the pipeline is washed down in the process of conveying water flow is avoided.

Wherein, the inside of four locating plates 2 all runs through dead lever 3, and the quantity of dead lever 3 is four, and the one end of four dead levers 3 all is fixed with threaded rod 13.

The four threaded rods 13 penetrate through the inner parts of the other four positioning plates 2, and nuts 4 are connected with the outer parts of the four threaded rods 13 in a threaded manner;

the user can rotate nut 4 fine setting expansion joint pipe 1's length when using expansion joint pipe 1 to fix a position expansion joint pipe 1's appearance through four dead levers 3, avoid expansion joint pipe 1's inside rivers impact force too big to lead to expansion joint pipe 1 to take place deformation.

The working principle of the return leg metal octagonal expansion joint provided by the utility model is as follows;

the first step: the user carries out fixed connection through the inside both sides of two ring flanges 6 and water pipe, after the installation, can filter the solid impurity in the aquatic through the filter plate 8 of the inside block installation of two ring flanges 6 in the in-process of use, avoids solid impurity to wrap up in by rivers and hold in the inside that assaults into expansion joint pipe 1 and causes the damage to the inside of expansion joint pipe 1.

And a second step of: the user can rotate nut 4 fine setting expansion joint pipe 1's length when using expansion joint pipe 1 to fix a position expansion joint pipe 1's appearance through four dead levers 3, avoid expansion joint pipe 1's inside rivers impact force too big to lead to expansion joint pipe 1 to take place deformation.

And a third step of: the strength of the whole pipeline can be enhanced through the reinforcing rod 12 fixedly connected between the positioning disc 11 and the expansion joint pipe 1, and the phenomenon that the low strength of the pipeline is washed down in the process of conveying water flow is avoided.

Compared with the related art, the return leg metal octagonal expansion joint provided by the utility model has the following beneficial effects: the user carries out fixed connection through the inside both sides of two ring flanges 6 and water pipe, after the installation, can filter the solid impurity in the aquatic through the filter plate 8 of the inside block installation of two ring flanges 6 in the in-process of use, avoids solid impurity to wrap up in by rivers and hold in the inside that assaults into expansion joint pipe 1 and causes the damage to the inside of expansion joint pipe 1.

The user can rotate nut 4 fine setting expansion joint pipe 1's length when using expansion joint pipe 1 to fix a position expansion joint pipe 1's appearance through four dead levers 3, avoid expansion joint pipe 1's inside rivers impact force too big to lead to expansion joint pipe 1 to take place deformation, can increase the intensity of whole pipeline through fixed connection's between positioning disk 11 and expansion joint pipe 1 stiffener 12, avoid pipeline intensity low to be washed down in the in-process of carrying rivers.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a feed back leg metal octagonal expansion joint, includes expansion joint pipe (1), its characterized in that, the outside equal equidistance in both sides of expansion joint pipe (1) is fixed with locating plate (2), and the quantity of locating plate (2) is eight, the both sides of expansion joint pipe (1) all are fixed with connecting pipe body (5), two one side of connecting pipe body (5) all is fixed with ring flange (6), two draw-in groove (7) have all been seted up to the inside of ring flange (6), filter plate (8) are installed through draw-in groove (7) block to the inside of ring flange (6), the both sides of filter plate (8) all are fixed with angle bar (9).

2. The return leg metal octagonal expansion joint according to claim 1, wherein a threaded hole is formed in the angle iron (9), and the filter plate (8) is connected with the inner bolt of the clamping groove (7) through the angle iron (9).

3. The return leg metal octagonal expansion joint according to claim 2, characterized in that the outer walls of both flanges (6) are fixed with sealing rubber rings (10).

4. A return leg metal octagonal expansion joint according to claim 3, characterized in that the outer parts of the two connecting pipe bodies (5) are both fixed with positioning disks (11), and reinforcing rods (12) are fixed on the inner wall between the positioning disks (11) and the expansion joint pipe (1) at equal intervals.

5. The return leg metal octagonal expansion joint according to claim 4, wherein four positioning plates (2) are internally penetrated by fixing rods (3), the number of the fixing rods (3) is four, and threaded rods (13) are fixed at one ends of the four fixing rods (3).

6. The return leg metal octagonal expansion joint according to claim 5, wherein four threaded rods (13) penetrate through the inner parts of the other four positioning plates (2), and nuts (4) are connected to the outer parts of the four threaded rods (13) in a threaded manner.