CN211976234U

CN211976234U - Steel faucet elbow

Info

Publication number: CN211976234U
Application number: CN201920910602.9U
Authority: CN
Inventors: 赵晓露; 孙其臣; 欧阳荣
Original assignee: Beijing Hanjianheshan Pipeline Co ltd
Current assignee: Beijing Hanjianheshan Pipeline Co ltd
Priority date: 2019-06-11
Filing date: 2019-06-11
Publication date: 2020-11-20
Anticipated expiration: 2029-06-11

Abstract

The utility model discloses a steel bell and spigot elbow, which comprises a bell ring, a socket ring, a bevel steel pipe, an inner steel wire mesh, inner mortar, an outer steel wire mesh and outer mortar; the socket ring is welded with the bevel end fillet weld of the bevel steel pipe; the bell ring is welded with a fillet weld of a standard mouth end of the bevel mouth pipe; the inner wall is hung with the inner steel wire mesh and coated with the inner mortar, and the outer wall of the steel pipe is hung with the outer steel wire mesh and coated with the outer mortar. The problem of small-angle turning is solved, the on-site strain capacity is improved, and the on-site construction efficiency is improved.

Description

Steel faucet elbow

Technical Field

The utility model relates to a be used for steel socket joint pipeline field, concretely relates to steel socket elbow.

Background

The steel bell and spigot joint is widely applied to prestressed steel cylinder concrete pipes and flexible steel bell and spigot concrete pipes, and has the advantages that the design value of the joint matching tolerance is accurate to 0.1mm, the joint is sealed by adopting a sliding O-shaped rubber ring, the steel bell and spigot ring and the bell and spigot are self-centering joints, the installation and self-positioning effects are realized, and the joint leakage amount is small; the spigot is made of special section steel with a groove, the sealing rubber ring is filled in the groove according to the design of sections of the rubber groove and the like, and the rubber ring after being installed is subjected to bidirectional extrusion to form good sealing force, so that the sealing performance of the pipeline joint is ensured.

In the national standard GB/T19685 prestressed steel cylinder concrete pipe, 7.3 pipeline turning, the turning of a large curvature radius can be realized by directly using a relative corner allowed by a pipeline joint, but the turning of a pipeline with a small curvature radius is realized by using a specially designed elbow fitting, the maximum central deflection angle of two adjacent pipe joints of the elbow fitting is not more than 22.5 degrees, and the two adjacent pipe joints are connected by welding.

The inspection well is arranged at the position of a pipeline intersection, a turning position, a pipe diameter or gradient changing position, a drop position and a position at a certain distance on a straight pipe section at the position of an inspection well of national standard GB 50014 'design Specification for outdoor drainage' 4.4.1.

In practical engineering application, a small-angle turning of a water supply pipeline adopts a pipeline joint to allow relative turning angles, and a large-angle turning angle adopts a specially designed bent pipe fitting; the drainage pipeline is provided with an inspection well when turning. In the urban pipeline construction process, if turning at a small angle is adopted, a reasonable construction space is needed by means of rotation or arrangement of an inspection well, and due to the complex conditions of urban construction sites, when the construction space is not available, a steel bell and spigot elbow is needed to be developed aiming at the situation.

Disclosure of Invention

To above problem, the utility model provides a small-angle steel bell and spigot elbow is makeed into to steel bell and spigot elbow, reduces the site operation engineering volume, has improved on-the-spot strain capacity, has improved the installation rate.

In order to realize the purpose, the utility model discloses a technical scheme as follows: the steel pipe joint comprises a socket ring, an inclined steel pipe, an inner steel wire mesh, inner mortar, an outer steel wire mesh and outer mortar; the socket ring is welded with the bevel end fillet weld of the bevel steel pipe; the bell ring is welded with a fillet weld of a standard mouth end of the bevel mouth pipe; the inner wall is hung with the inner steel wire mesh and coated with the inner mortar, and the outer wall of the steel pipe is hung with the outer steel wire mesh and coated with the outer mortar.

The utility model discloses an utilize bellmouth ring tip size and the different numerical values of socket ring tip size, solved the low-angle and turned round, improved on-the-spot strain capacity, improved on-the-spot efficiency of construction.

Drawings

Fig. 1 is a schematic view of the cross-sectional structure of the present invention.

The reference numbers in the figures are: the steel pipe comprises a socket ring 1, an inner steel wire mesh 2, inner mortar 3, an oblique steel pipe 4, a socket ring 5, an outer steel wire mesh 6 and outer mortar 7.

Detailed Description

As shown in fig. 1, a steel bell and spigot elbow comprises a bell ring 5, a spigot ring 1, an oblique steel pipe 4, an inner steel wire mesh 2, inner mortar 3, an outer steel wire mesh 6 and outer mortar 7; the socket ring 1 is welded with the bevel end fillet weld of the bevel steel pipe 4; the bell ring 5 is welded with a fillet weld at the standard mouth end of the bevel steel pipe 4; hanging an inner steel wire mesh 2 and smearing inner mortar 3 on the inner walls of the bevel steel pipe 4 and the socket ring 1; and an outer steel wire mesh 6 is hung on the outer walls of the beveled steel pipe 4 and the bellmouth ring 5, and outer mortar 7 is smeared on the outer walls.

Based on the above, the utility model discloses an adopt the socket ring welding to hold at the bevel connection of bevel connection steel pipe, the bell mouth ring welding holds at the standard mouth of bevel connection steel pipe, makes into low-angle steel bell and spigot elbow, reduces the site operation engineering volume, has improved the on-the-spot strain capacity, has improved the installation rate.

Claims

1. A steel bell and spigot elbow comprises a bell ring, a socket ring, an oblique steel pipe, an inner steel wire mesh, inner mortar, an outer steel wire mesh and outer mortar; the method is characterized in that: the socket ring is welded with the bevel end fillet weld of the bevel steel pipe; the bell ring is welded with the fillet weld at the opening end of the bevel steel pipe; hanging an inner steel wire mesh on the inner wall of the bevel steel pipe and the socket ring, and smearing inner mortar; and hanging an outer steel wire mesh and smearing outer mortar outside the bevel steel pipe and the bellmouth ring.