CN201187638Y

CN201187638Y - Steel faucet prestress steel cylinder concrete pipe

Info

Publication number: CN201187638Y
Application number: CNU2008200747109U
Authority: CN
Inventors: 赵斌; 张亮
Original assignee: Tianjin Waterline Pipeline Engineering Co Ltd
Current assignee: Tianjin Waterline Pipeline Engineering Co Ltd
Priority date: 2008-05-09
Filing date: 2008-05-09
Publication date: 2009-01-28
Anticipated expiration: 2018-05-09

Abstract

The utility model relates to a prestressed concrete cylinder pipe with a steel spigot and a socket, which is composed of the spigot, the socket, a concrete pipe core, a steel cylinder, prestressed steel wire and a protective layer, wherein, a connecting steel ring is respectively arranged between the steel cylinder and the spigot and between the steel cylinder and the socket at the two ends of the steel cylinder in a radial direction. After the improvement, the prestressed concrete cylinder pipe with the steel spigot and the socket is provided with good impermeability, noncorrosibility and differential settlement resistance, in addition, the raw material cost and the construction cost are low, the construction process is simple, the maintenance is convenient, the prestressed concrete cylinder pipe has the greatest advantages that the outer die is omitted and the wall thickness of the concrete pipe is controlled, the manufacturing cost is reduced, the processing steps for the shaping of the concrete pipe core can be reduced, and production efficiency is improved.

Description

Prestressed steel-cylinder concrete pipe with steel socket and spigot

Technical field

The utility model relates to concrete plug, especially a kind of prestressed steel-cylinder concrete pipe with steel socket and spigot.

Background technique

Widely used prestressed steel-cylinder concrete pipe with steel socket and spigot in large-scale liquid conveying engineering, owing to be inlaid with a steel cylinder and this steel cylinder two ends are coaxial respectively directly is packed on steel bellmouth and the socket at this concrete pipe in-core, thereby make whole concrete pipe self form an airtight integral body, therefore efficiently solve because of carrying fluid pressure to cause the problem of carrying liquid to exosmose by concrete tube wall.There is following problem in existing prestressed steel-cylinder concrete pipe with steel socket and spigot in manufacture process: 1. the concrete tube core comes molded by interior external mold, because interior external mold customizes, therefore the internal mold and the distance between the external mold of pipe die are a fixed value, the engineering of corresponding different operating modes and the different operating modes of same engineering can only be carried out the fine setting of tube core wall thickness by the pitch regulated of reinforcement wire, and the moulding process of this inside and outside modular form can not be suitable for the concrete pipe that the tube core wall thickness is arbitrarily adjusted; 2. the pipe die cost that is used for moulding concrete tube core is higher, the external mold in the pipe die especially, and its weight accounts for 1/3 of a whole set of pipe die, and cost of production is higher; 3. in the moulding process of whole prestressed steel-cylinder concrete pipe with steel socket and spigot, concrete tube core molding time is longer, and the tube core moulding needs external mold, internal mold, bed die and backform to cooperatively interact, and lifting each pipe die all needs the long time, and manufacturing efficiency is lower.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of prestressed steel-cylinder concrete pipe with steel socket and spigot is provided; This concrete pipe can save external mold in forming process, saved cost of production, has reduced the process step of concrete tube core moulding, has improved manufacturing efficiency.

The utility model solves its technical problem and is achieved through the following technical solutions:

A kind of prestressed steel-cylinder concrete pipe with steel socket and spigot; constitute by bellmouth, socket, concrete tube core, steel cylinder, reinforcement wire and protective layer; bellmouth and the coaxial respectively two ends that are packed in the concrete tube core of socket; steel cylinder is packed on the outer wall of concrete tube core; the outer wall of steel cylinder is fixed with protective layer; be wound with reinforcement wire on the outer wall in the steel cylinder protective layer, wherein between steel cylinder and socket and bellmouth, be fixed with one diametrically respectively and be connected steel loop in the end positions of steel cylinder.

And described connection steel loop is packed in the port position at steel cylinder two ends.

And, but in the connection steel loop retraction steel cylinder port of socket position.

Advantage of the present utility model and beneficial effect are:

1. the steel cylinder two-end part of this prestressed steel-cylinder concrete pipe with steel socket and spigot is packed on bellmouth and the socket by connecting steel loop respectively, substitute external mold with steel cylinder, thereby saved external mold, this structural type has realized making the prestressed steel cylinder reinforced concrete pipe with steel socket and spigot of different wall by the connection steel loop that installs different sizes, use amount with concrete consumption of reasonable reduction tube core and reinforcement wire reaches the purpose that reduces cost.

2. the utility model is through still having preferably impermeability, anti-corrosive properties, resisting uneven settlement after improving, and raw material and construction cost cost are low, construction process is simple, maintenance maintenance is convenient, sharpest edges are to omit the wall thickness of external mold and control concrete pipe, save cost of production thus greatly, reduced the process step of concrete tube core moulding, improved manufacturing efficiency.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is that the A-A of Fig. 1 is to the cross section enlarged view;

Fig. 3 is that the B-B of Fig. 1 is to the cross section enlarged view;

Fig. 4 is that the C-C of Fig. 1 is to the cross section enlarged view.

Embodiment

The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.

A kind of prestressed steel-cylinder concrete pipe with steel socket and spigot; constitute by bellmouth 8, socket 1, concrete tube core 4, steel cylinder 5, reinforcement wire 6 and protective layer 7; the all coaxial two ends that are packed in the concrete tube core of bellmouth and socket; the steel cylinder coaxial package is on concrete pipe outer core cylinder; protective layer is coaxial to be packed on the steel cylinder outer wall cylinder, and reinforcement wire is wrapped on the interior steel cylinder outer wall cylinder of protective layer.The socket outer wall directly upwards is shaped on 1-3 groove 2, is used to install corrosion-resistant O-ring seal in this groove with the interface between the closed conduit; Protective layer is cement mortar protective course or concrete cover.

Innovative point of the present utility model is:

The end positions of steel cylinder is solidly installed with socket and bellmouth respectively in the mode of frame

connection steel loop

3,9 diametrically, and this mode of installing adopts welding manner.Connect the port position that steel loop is packed in the steel cylinder two ends as shown in drawings, but for socket, connect steel loop can the retraction steel cylinder in.

Preparation process of the present utility model is similar to the preparation process of PCCP, just in the moulding of concrete tube core, adopts steel cylinder to substitute external mold, thereby has save external mold; And directly make the prestressed steel cylinder reinforced concrete pipe with steel socket and spigot of different wall by the connection steel loop that installs different sizes.

Claims

1. prestressed steel-cylinder concrete pipe with steel socket and spigot; constitute by bellmouth, socket, concrete tube core, steel cylinder, reinforcement wire and protective layer; bellmouth and the coaxial respectively two ends that are packed in the concrete tube core of socket; steel cylinder is packed on the outer wall of concrete tube core; the outer wall of steel cylinder is fixed with protective layer; be wound with reinforcement wire on the outer wall in the steel cylinder protective layer, it is characterized in that: be fixed with one diametrically respectively in the end positions of steel cylinder between steel cylinder and socket and the bellmouth and be connected steel loop.

2. prestressed steel-cylinder concrete pipe with steel socket and spigot according to claim 1 is characterized in that: described connection steel loop is packed in the port position at steel cylinder two ends.

3. prestressed steel-cylinder concrete pipe with steel socket and spigot according to claim 2 is characterized in that: but in the connection steel loop retraction steel cylinder port of socket position.