CN212745415U

CN212745415U - Socket joint formula pipeline connection structure

Info

Publication number: CN212745415U
Application number: CN202020488295.2U
Authority: CN
Inventors: 李明
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-29
Filing date: 2020-03-29
Publication date: 2021-03-19
Anticipated expiration: 2030-03-29

Abstract

This design is a socket joint formula pipeline connection structure, by the bellmouth part, spigot portion and seal rubber ring constitute characterized by: 1. the bell mouth part of the steel pipeline pipe end is provided with flaring shapes of two annular cavities, 2, a sealing rubber ring matched with the flaring shapes is a solid sealing rubber ring similar to a B shape, and 3, a main stress point of the sealing rubber ring after being flattened by the spigot part is arranged near the center line of the bell mouth part, so that the steel pipeline pipe end and bell mouth part is applied to connection of steel pipelines, and the problem that the sealing effect of the socket connection mode used for the existing steel-plastic composite pipe is not ideal is mainly solved. The structure is characterized in that a steel pipe is hot-expanded or cold-expanded into a specific shape, and a sealing rubber ring in the specific shape is matched, so that the purposes of stable sealing effect, strong adaptability to the terrain of a construction site and convenience and quickness in construction are achieved.

Description

Socket joint formula pipeline connection structure

Technical Field

The connection of large-diameter steel pipelines in the water supply and drainage industry, the water conservancy and water delivery industry and the like.

Background

The steel-plastic composite pipe is widely used in the field of water delivery as a novel pipe, and the connection modes of the steel-plastic composite pipe comprise welding, clamp connection, flange connection and socket connection, which have respective advantages and disadvantages.

1. The welding construction difficulty is large, the progress is slow, the plastic coating layer is damaged, and the corrosion prevention in the interface is difficult to realize.

2. The flange connection has higher cost, belongs to rigid connection as welding, and can turn only by accessories.

3. The clamp connection is only suitable for small-bore pipe connections.

4. The socket joint formula is connected belongs to the flexible connection, can turn greatly and bend, and topography adaptability is strong, and construction convenience is swift, is the connection mode than ideal, nevertheless has sealed unsatisfactory condition at present, and this scheme is exactly to this problem of socket joint connection.

SUMMERY OF THE UTILITY MODEL

The structure is a spigot-and-socket type pipeline connecting structure, which consists of a bell mouth part, a spigot part and a sealing rubber ring, wherein the pipe end of a steel pipe is hot-expanded or cold-expanded into the shapes of 3 and 4 in figure 1, and the sealing rubber ring with the shape shown by 7 in figure 1 is manufactured for connection, and the main technical characteristics of the structure are as follows: the bell portion has the flaring shape of two

annular cavities

5 and 6, and a sealing rubber ring 7 matched with the flaring shape is a solid sealing rubber ring similar to a B shape, and the main force bearing point of the sealing rubber ring after being squashed by a spigot in the cavity 5 is arranged near the midline 8 of the bell portion.

The functions and characteristics are described in detail in the following with reference to the attached drawings of the specification, as shown in fig. 1:

1. the 5 cavities for containing the sealing rubber rings are flat and shallow, and the rubber rings are higher than the 6 cavities after being filled, so that the main stress points are ensured to be on the 5 cavities after the insertion holes are inserted.

2.5 chamber will have unnecessary space to release the rubber ring and be pressed down by the socket elasticity deformation after to avoid the rubber ring elasticity to have no department to release and produce reaction force, this is the key of guaranteeing that sealed rubber ring is sealed effectual not shifting.

3.6 the rubber ring part in the cavity is fully attached to the pipe wall, and the rubber ring is positioned and sealed when the socket is inserted, so that the displacement is prevented, and the rubber ring is smoothly guided into the socket.

4. The main stress point of the sealing rubber ring after being flattened by the inserting opening in the cavity 5 is arranged near the central line 8 of the bell mouth part, which is the key for ensuring the uniform stress of the sealing rubber ring when the steel pipe 2 deflects radially and is the lever fulcrum position when the steel pipe deflects, so that the movable steel pipe 2 can not leak water.

Drawings

FIG. 1 is a schematic view showing the shape and name of each part before the connection of pipes

In the figure: 1 and 2 are steel pipelines, 3 bell mouth shapes, 4 spigot shapes, 5 annular cavities, 6 annular cavities, 7 sealing rubber rings and 8 center lines

Detailed Description

As shown in figure 1, the sealing rubber ring is arranged at the correct position of the bellmouth, and the spigot is slowly pushed into the bellmouth, so that the construction operation is convenient.

Claims

1. The utility model provides a socket joint formula pipeline connection structure, by the bellmouth part, spigot portion and sealed rubber ring constitute characterized by: 1. the steel pipeline end bell mouth part is provided with two flaring shapes of annular cavities, 2, the sealing rubber ring matched with the steel pipeline end bell mouth part is a solid sealing rubber ring similar to a B shape, and 3, the main stress point of the sealing rubber ring after being flattened by the spigot part is arranged near the center line of the bell mouth part.