阅读说明：本技术 一种固径式大口径塑料管材及其生产安装方法 (Fixed-diameter type large-caliber plastic pipe and production and installation method thereof ) 是由 宋晓玲 黄东 万锡涛 杨铭 方锐栋 严格 徐涛 魏妍丽 于 2018-05-29 设计创作，主要内容包括：本发明涉及一种管径超过300mm的大口径塑料管材的生产安装技术领域,特别涉及一种固径式大口径塑料管材及其生产安装方法。其包括塑料管材,所述塑料管材一端设有承插口,所述承插口上设置承插R型凸起,所述塑料管材的另一端设有R型凸起,所述承插R型凸起和R型凸起内侧均设置固径盘,所述固径盘紧配合设置于所述塑料管材外壁,所述固径盘上设置紧固件。本发明将塑料管材两端均设置R型凸起,并在R型凸起内侧设置固径盘,结构新颖,且可防止管口变形,通过固径盘与密封装置、紧固件的连接,可以防止连接口松动,在密封装置外即可直观的了解密封圈的安装情况,减少密封故障的出现,提高密封效果,而且加工、安装方便,推广应用前景较好。(the invention relates to the technical field of production and installation of large-caliber plastic pipes with the pipe diameter of more than 300mm, in particular to a fixed-diameter large-caliber plastic pipe and a production and installation method thereof. The plastic pipe comprises a plastic pipe, wherein a socket is arranged at one end of the plastic pipe, a socket R-shaped bulge is arranged on the socket, an R-shaped bulge is arranged at the other end of the plastic pipe, a diameter fixing disc is arranged on the inner sides of the socket R-shaped bulge and the R-shaped bulge, the diameter fixing disc is arranged on the outer wall of the plastic pipe in a tight fit mode, and a fastener is arranged on the diameter fixing disc. According to the invention, the R-shaped bulges are arranged at both ends of the plastic pipe, the diameter fixing disc is arranged on the inner sides of the R-shaped bulges, the structure is novel, the deformation of the pipe orifice can be prevented, the looseness of a connecting port can be prevented through the connection of the diameter fixing disc, the sealing device and the fastening piece, the installation condition of the sealing ring can be visually known outside the sealing device, the occurrence of sealing faults is reduced, the sealing effect is improved, the processing and the installation are convenient, and the popularization and application prospect is better.)

1. the utility model provides a solid footpath formula heavy-calibre plastics tubular product, includes plastics tubular product, plastics tubular product one end is equipped with the bell and spigot, it is protruding to set up socket R type on the bell and spigot, its characterized in that: the other end of the plastic pipe is provided with an R-shaped bulge, the inner sides of the socket R-shaped bulge and the R-shaped bulge are respectively provided with a diameter fixing disc, the diameter fixing discs are arranged on the outer wall of the plastic pipe in a tight fit mode, and a fastening piece is arranged on each diameter fixing disc.

2. The fixed-diameter large-caliber plastic pipe material as claimed in claim 1, wherein: the solid footpath dish includes that plane ring flange and coaxial ring cover constitute "+" type structure, plane ring flange center sets up the round hole, plastics tubular product is arranged in the round hole, solid footpath dish inner wall set up with plastics tubular product complex profile modeling curved surface.

3. The fixed-diameter large-caliber plastic pipe as claimed in claim 2, wherein: and a plurality of rib plates are arranged on the outer peripheries of the plane flange plate and the circular ring sleeve.

4. The fixed-diameter large-caliber plastic pipe material as claimed in claim 1, wherein: and the end surface of the bell and spigot of the plastic pipe is provided with a pipe orifice built-in chamfer.

5. The fixed-diameter large-caliber plastic pipe material as claimed in claim 1, wherein: the diameter fixing disc is arranged on the inner side of the R-shaped bulge.

6. The fixed-diameter large-caliber plastic pipe material as claimed in claim 1, wherein: the diameter fixing disc is formed by combining two diameter fixing blocks which are attached to the outer wall of the plastic pipe, and a connecting piece is arranged between the diameter fixing blocks.

7. The production and installation method of the fixed-diameter large-caliber plastic pipe material as claimed in any one of claims 1 to 6, characterized by comprising the following steps:

(1) Producing a plastic pipe by a pipe extruder set, arranging a built-in chamfer at one end of the plastic pipe and carrying out flaring treatment to form a socket with a chamfer;

(2) Setting a socket R-shaped bulge on the socket in the step (1);

(3) sleeving two diameter fixing discs on the plastic pipe;

(4) the other end of the plastic pipe is provided with an R-shaped bulge, and the length of the plastic pipe outside the R-shaped bulge is smaller than that of the bell and spigot;

(5) fixing the two diameter fixing discs on the inner side roots of the socket R-shaped bulges and the R-shaped bulges in a gluing or tight fit mode respectively;

(6) When in connection and installation, a sealing device is sleeved at the outer root part of the R-shaped bulge of the plastic pipe;

(7) Inserting one end of the R-shaped bulge of one plastic pipe into a socket of the other plastic pipe, wherein a built-in chamfer of the socket is attached to the sealing device;

(8) connecting two adjacent fixed diameter discs of the two plastic pipes through fasteners;

(9) And (5) circularly finishing the steps (7) and (8), and finishing the installation of the large-caliber plastic pipe.

8. The production and installation method of the fixed-diameter large-caliber plastic pipe as claimed in claim 7, wherein the sealing device is a sealing ring with a wedge-shaped cross section, and the sealing ring is arranged at the root of the R-shaped bulge at the other end of the plastic pipe.

Technical Field

the invention relates to the technical field of production and installation of large-caliber plastic pipes with the pipe diameter of more than 300mm, in particular to a fixed-diameter large-caliber plastic pipe and a production and installation method thereof.

background

the plastic pipes on the market at present generally have an R bell and spigot expanding structure at one end and an outer chamfer structure at the other end. The connection mode of the R socket is that one end of the external chamfer is inserted into the R socket and is connected with the matching surface of the R socket in a sealing mode through gluing or a V-shaped sealing rubber ring socket sealing connection is arranged in the R socket. The method is convenient for linking and sealing the plastic pipe with the outer diameter of less than 300mm, but the conventional method is not practical particularly in the application of the water conveying pipe in the mountainous area with large water level drop along with the appearance of the large-caliber plastic engineering pipe with the outer diameter of more than 300mm recently. The reason is that the outer diameter of the large-caliber pipe with the outer diameter of more than 300mm can be deformed into an oval shape under the action of self gravity due to the large self weight of the large-caliber pipe without the R bell and spigot end. The method brings great troubles to site construction, installation and connection sealing, greatly increases the site installation cost of the pipe, and also causes the problem of difficult market popularization and application of the novel large-caliber plastic pipe with the outer diameter of more than 300 mm.

disclosure of Invention

aiming at the defects in the prior art, the invention aims to provide a fixed-diameter large-caliber plastic pipe which has the advantages of novel structure, high pressure bearing capacity, good sealing effect and convenience in installation, prevents the deformation of a pipe orifice and the looseness of a connecting port, and a production and installation method thereof.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides a solid footpath formula heavy-calibre plastics tubular product, includes plastics tubular product, plastics tubular product one end is equipped with the bell and spigot, set up socket joint R type arch on the bell and spigot, its the other end of plastics tubular product is equipped with R type arch, socket joint R type arch and the protruding inboard of R type all set up solid footpath dish, solid footpath dish tight fit set up in plastics tubular product outer wall, set up the fastener on the solid footpath dish.

Foretell solid footpath formula heavy-calibre plastics tubular product, its gu footpath dish includes the structure of the '+' type that plane ring flange and coaxial ring cover constitute, plane ring flange center sets up the round hole, plastics tubular product is arranged in the round hole, gu footpath dish inner wall set up with plastics tubular product complex profile modeling curved surface.

In the fixed-diameter large-caliber plastic pipe, the plane flange plate and the ring sleeve are provided with the plurality of rib plates along the circumference.

according to the fixed-diameter large-caliber plastic pipe, the end face of the socket of the plastic pipe is provided with the pipe orifice built-in chamfer.

In the above diameter fixing type large-caliber plastic pipe, the diameter fixing disc is arranged on the inner side of the R-shaped protrusion.

In the diameter fixing type large-caliber plastic pipe, the diameter fixing disc is formed by combining two diameter fixing blocks attached to the outer wall of the plastic pipe, and a connecting piece is arranged between the diameter fixing blocks.

A production and installation method of a fixed-diameter large-caliber plastic pipe comprises the following steps:

(1) Producing a plastic pipe by a pipe extruder set, arranging a built-in chamfer at one end of the plastic pipe and carrying out flaring treatment to form a socket with a chamfer;

(2) setting a socket R-shaped bulge on the socket in the step (1);

(3) sleeving two diameter fixing discs on the plastic pipe;

(4) The other end of the plastic pipe is provided with an R-shaped bulge, and the length of the plastic pipe outside the R-shaped bulge is smaller than that of the bell and spigot;

(5) Fixing the two diameter fixing discs on the inner side roots of the socket R-shaped bulges and the R-shaped bulges in a gluing or tight fit mode respectively;

(6) When in connection and installation, a sealing device is sleeved at the outer root part of the R-shaped bulge of the plastic pipe;

(7) Inserting one end of the R-shaped bulge of one plastic pipe into a socket of the other plastic pipe, wherein a built-in chamfer of the socket is attached to the sealing device;

(8) Connecting two adjacent fixed diameter discs of the two plastic pipes through fasteners;

(9) And (5) circularly finishing the steps (7) and (8), and finishing the installation of the large-caliber plastic pipe.

According to the production and installation method of the fixed-diameter large-caliber plastic pipe, the sealing device is a sealing ring with a wedge-shaped section, and the sealing ring is arranged at the root of the R-shaped bulge at the other end of the plastic pipe.

has the advantages that:

According to the invention, the R-shaped bulges are arranged at both ends of the plastic pipe, the diameter fixing disc is arranged on the inner sides of the R-shaped bulges, the structure is novel, the deformation of the pipe orifice can be prevented, the looseness of a connecting port can be prevented through the connection of the diameter fixing disc, the sealing device and the fastening piece, the installation condition of the sealing ring can be visually known outside the sealing device, the occurrence of sealing faults is reduced, the sealing effect is improved, the processing and the installation are convenient, and the popularization and application prospect is better.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the present invention;

FIG. 3 is an enlarged view of a portion of the mounting structure of the present invention;

Fig. 4 is a sectional structure diagram of the solid diameter disc of the invention.

The labels in the figure are: the pipe comprises a 1-R-shaped bulge, a 2-fixed-diameter disc, a 3-pipe orifice built-in chamfer, a 4-wedge-shaped sealing ring, a 5-profiling curved surface, a 6-rib plate, a 7-socket, a 8-plastic pipe, a 9-fastener and a 10-socket R-shaped bulge.

Detailed Description

In order to more clearly and accurately describe the technical scheme of the invention, the following further elaboration is combined with the specific embodiments.