CN216666828U

CN216666828U - A flexible socket joint steel pipe of enhancement mode for dark earthing

Info

Publication number: CN216666828U
Application number: CN202122480790.6U
Authority: CN
Inventors: 张亮; 刘伯虎; 倪奉尧
Original assignee: Shandong Donghong Pipe Industry Co Ltd
Current assignee: Shandong Donghong Pipe Industry Co Ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-06-03
Anticipated expiration: 2031-10-14

Abstract

The utility model discloses an enhanced flexible socket steel pipe for deep earthing, which comprises a socket steel pipe body and a reinforcing piece, wherein the reinforcing piece is at least arranged at a straight section of the end part of the socket steel pipe body, the reinforcing piece is arranged around the socket steel pipe in the circumferential direction, and at least two through holes are processed on the reinforcing piece; the end of the bell and spigot steel pipe body is provided with a hem, the hem is bent towards the inner side of the bell and spigot steel pipe, the bell and spigot is deformed together through the hem, the effective space for sealing the rubber ring is ensured, and the pipe orifice sealing effect under the condition of deep soil covering is provided. Through increasing the beaded finish or strengthening the channel-section steel at flexible socket joint steel pipe bell and spigot both ends, promote the bell and spigot and socket and resist the ability of vertical deformation, make socket joint steel pipe tubular product can not produce great vertical deformation when receiving great external pressure load to provide effectual compression ratio for the sealing rubber circle, and then guarantee the orificial sealed effect of tubular product.

Description

A flexible socket joint steel pipe of enhancement mode for dark earthing

Technical Field

The utility model belongs to the technical field of socket steel pipes, and particularly relates to an enhanced flexible socket steel pipe for deep soil covering.

Background

The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The socket steel pipe belongs to a flexible pipeline, and the maximum vertical deformation of the socket steel pipe is controlled to be not more than 2%. The flexible socket steel pipe is used as a pipe for realizing sealing by using the rubber ring, the rubber ring is reasonably compressed by the socket, the pipe orifice sealing of the rubber ring under the condition of certain compression ratio is ensured, and the compression ratio is in direct proportion to the pressure bearing capacity of the pipe orifice. The diameter-thickness ratio of the existing water delivery steel pipe is generally 100:1, and under the condition of the pipe wall thickness, the external load which can be borne by the steel pipe is limited, namely when the steel pipe is laid at a deeper soil covering depth, the maximum vertical deformation is easily caused to exceed 2 percent, so that the sealing failure and water leakage of a pipe opening are caused, and the water delivery safety of a pipeline is influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide an enhanced flexible socket steel pipe for deep soil covering. The rigidity of the position ring at the pipe opening of the pipe is improved, the vertical deformation resistance of the pipe is improved, and the sealing effect of the pipe opening of the pipe is ensured. The problem of installation lug has been solved in the reinforcement.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

a reinforced flexible socket steel pipe for deep soil covering comprises a socket steel pipe body and a reinforcing piece, wherein the reinforcing piece is at least arranged at a straight section of the end part of the socket steel pipe body, the reinforcing piece is circumferentially arranged around the socket steel pipe, and at least two through holes are processed on the reinforcing piece;

the end part of the bell and spigot steel pipe body is provided with a hem, and the hem is bent to a set angle towards the inner side of the bell and spigot steel pipe. The angle between the folded edge formed after bending and the inner side of the socket is 60-120 degrees, preferably 80-100 degrees, and more preferably 85-95 degrees.

In some embodiments, the reinforcing member is a reinforcing ring, and reinforcing ribs are arranged at positions of the reinforcing ring where the through holes are formed.

Further, the height of the reinforcing ring is 50-150 mm. The pipe diameter range of the corresponding socket steel pipe is

To

In some embodiments, the reinforcement is a reinforcing channel, and the lifting lug is welded on the reinforcing channel.

In some embodiments, two through holes are provided in the reinforcing member, and the two through holes are provided on the same diameter of the socket steel pipe.

In some embodiments, the minimum distance between the stiffener and the end of the socket of the female steel pipe is 350-400 mm. So as to ensure the integral stability of the nozzle.

Furthermore, a plurality of reinforcing pieces are arranged along the axial direction of the socket steel pipe.

Further, the spacing between adjacent stiffeners is 1.5-3 m. If under the condition of large external load (under the condition that the pipe body part needs to be reinforced through structural design), a stiffening ring or a reinforcing channel steel needs to be added from the pipe end bell socket to the pipe body of the whole steel pipe, so that the integral strength of the bell and spigot steel pipe is ensured.

In some embodiments, the angle between the hem and the inner wall of the socket steel tube is 90-100 °.

Furthermore, the difference between the radius of the round socket enclosed by the folded edges and the outer radius of the socket is 0.5-2 mm. The spigot here refers to the spigot of another socket steel pipe which is matched with the spigot. When the difference value of the two is small, the sealing requirement is favorably met.

The above one or more embodiments of the present invention achieve the following advantageous effects:

through increasing stiffening ring or strengthening the channel-section steel (strengthening the gusset immediately) at flexible socket steel pipe bell and spigot both ends, promote the bell and spigot and resist the ability of vertical deformation, make socket steel pipe tubular product can not produce great vertical deformation when receiving great external pressure load to provide effectual compression ratio for the sealing rubber circle, and then guarantee the orificial sealed effect of tubular product.

Through setting up the hem, the shape of control flexible socket steel pipe bell and spigot takes place the elliptical deformation in-process at the socket steel pipe, realizes that the bell and spigot can warp jointly after elliptical deformation begins to appear to the sealed space shape of the sealing rubber circle of effective control bell and spigot formation. The socket steel pipe can still provide an effective compression ratio for the sealing rubber ring when being subjected to a large external pressure load or under the condition of generating a vertical deformation trend, and further the sealing effect of the pipe orifice of the pipe is ensured. Under the condition that the socket steel pipe is subjected to vertical deformation caused by external load, the socket can realize common deformation, so that the compression ratio of the rubber ring is kept in a control range, and the requirement of pressure bearing capacity is met.

The reinforcing ring and the folded edge are matched with each other, so that the capability of the flexible socket steel pipe for resisting dynamic load and static load is increased, the use application of the flexible socket steel pipe is expanded, the reliability of the flexible socket steel pipe under deep earth covering and large load is improved, and the engineering safety is favorably ensured. The coordination problem of the stiffening ring and the installation lifting lug is effectively solved, and the problem of pipe installation is solved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model.

FIG. 1 is a schematic illustration of a flexible socket steel pipe according to one or more embodiments of the present invention;

FIG. 2 is a schematic illustration of a flexible socket steel pipe according to one or more embodiments of the present invention;

fig. 3 is a structural view illustrating an installation state of a flexible socket steel pipe according to one or more embodiments of the present invention.

In the figure: the space or size between each other is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;

the steel pipe comprises a 1-socket steel pipe end, 2-reinforcing rings, 3-through holes, 4-reinforcing ribs, 5-lifting lugs, 6-reinforcing channel steel, 7-folded edges, 8-sealing rings and 9-socket steel pipes.

Detailed Description

It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the utility model as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

The utility model will be further explained with reference to the drawings.

As shown in fig. 1, fig. 2 and fig. 3, the reinforced flexible socket steel pipe for deep earth covering comprises a socket steel pipe body and a reinforcing member, wherein the reinforcing member is at least arranged at the straight section of the end part of the socket steel pipe body, the reinforcing member is arranged around the outer wall of the socket steel pipe in the circumferential direction, two through holes 3 are processed on the reinforcing member, and the two through holes 3 are arranged on the same diameter of the socket steel pipe; and a plurality of reinforcing pieces are arranged along the axial direction of the socket steel pipe, and the distance between every two adjacent reinforcing pieces is 1.5-3.0 m. If under the great condition of external load, all need all increase the reinforcement from the pipe end bell and spigot to the pipe shaft of whole root steel pipe to guarantee socket joint steel pipe's bulk strength. The minimum distance of reinforcement and socket steel pipe bell and spigot tip is 350-. So as to ensure the integral stability of the nozzle.

The end part of the bell and spigot steel pipe body is provided with a hem 7, and the hem 7 is bent towards the inner side of the bell and spigot steel pipe. The included angle between the folded edge 7 and the inner wall of the socket steel pipe is 90-100 degrees. The difference between the radius of the round socket formed by the folding edges 7 and the outer radius of the socket is 0.5-2 mm.

As shown in fig. 2, the reinforcing member may be a reinforcing ring, and reinforcing ribs 4 are provided at positions where the through holes are opened in the reinforcing ring. The height of the reinforcing ring 2 is 50-150 mm. The pipe diameter range of the corresponding socket steel pipe is

To

As shown in fig. 3, the reinforcing member may be a reinforcing channel 6, and the lifting lug 5 is welded on the reinforcing channel 6.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a flexible socket joint steel pipe of enhancement mode for dark earthing which characterized in that: the steel pipe socket comprises a socket steel pipe body and a reinforcing piece, wherein the reinforcing piece is at least arranged on a straight section of the end part of the socket steel pipe body, the reinforcing piece is arranged around the socket steel pipe in the circumferential direction, and at least two through holes are processed on the reinforcing piece;

the end part of the bell and spigot steel pipe body is provided with a hem, and the hem is bent to a set angle towards the inner side of the bell and spigot steel pipe.

2. The reinforced flexible socket steel pipe for deep casing soil of claim 1, wherein: the reinforcing piece is a reinforcing ring, and reinforcing ribs are arranged at the positions, provided with the through holes, of the reinforcing ring.

3. The reinforced flexible socket steel pipe for deep casing soil of claim 2, wherein: the height of the reinforcing ring is 50-150 mm.

4. The reinforced flexible socket steel pipe for deep casing soil of claim 1, wherein: the reinforcing piece is a reinforcing channel steel, and the lifting lugs are welded on the reinforcing channel steel.

5. An enhanced flexible socket steel pipe for deep casing soil according to any one of claims 1 to 4, wherein: the reinforcing piece is provided with two through holes, and the two through holes are arranged on the same diameter of the socket steel pipe.

6. The reinforced flexible socket steel pipe for deep casing soil of claim 1, wherein: the minimum distance between the reinforcing piece and the end part of the socket steel pipe is 350-400 mm.

7. The reinforced flexible socket steel pipe for deep casing soil of claim 6, wherein: and a plurality of reinforcing pieces are arranged along the axial direction of the socket steel pipe.

8. The reinforced flexible socket steel pipe for deep casing according to claim 7, wherein: the spacing between adjacent stiffeners is 1.5-3 m.

9. The reinforced flexible socket steel pipe for deep casing soil of claim 1, wherein: the included angle between the folded edge and the inner wall of the socket steel pipe is 90-100 degrees.

10. The reinforced flexible socket steel pipe for deep casing soil of claim 9, wherein: the difference between the radius of the round socket enclosed by the folded edges and the outer radius of the socket is 0.5-2 mm.