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Method for connecting plastic drainpipe with reinforced rib and pipe connection formed by same

A technology of reinforcing ribs and plastics, applied in the direction of pipes/pipe joints/pipe fittings, pipe connection layout, mechanical equipment, etc., can solve the problems of uneven outer walls and inability to use electric melting belt connections

Inactive Publication Date: 2009-12-02
ハルビンスターウェイマシーナリーマニュファクチャリングカンパニーリミテッド
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned plastic drainage pipes with rib-shaped outer walls cannot be connected by electric heating belts because the outer walls are uneven.

Method used

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  • Method for connecting plastic drainpipe with reinforced rib and pipe connection formed by same
  • Method for connecting plastic drainpipe with reinforced rib and pipe connection formed by same
  • Method for connecting plastic drainpipe with reinforced rib and pipe connection formed by same

Examples

Experimental program
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Embodiment Construction

[0022] Figure 5 In the method and structure shown, the water blocking block 3 made of the same plastic material as the pipe is welded to the outer wall of the side pipe 1 of the fin 2 to prevent the medium from flowing and leaking along the channels between the fins. The filling material 4 fills the channel space between the fins 2 and forms a coaxial cylindrical surface together with the top curved surface of the fins 2 water retaining block 3 to support the plastic connection layer 5 coated on the outer layer, and is compatible with the plastic material of the pipe. The inner surface of the same coated plastic connecting layer 5 is welded with the top curved surface of the ribs 2 and water blocking block 3, and the electric heating melting tape 6 (or heat shrinkable tape) and the connecting layer 5 are electric melting (or thermally bonded) Connection, the above structure forms a completely sealed connection of plastic drainage pipes with spiral reinforcement ribs or straig...

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Abstract

The invention provides a method for connecting a thermoplastic drainpipe with a spiral or annular reinforced rib on the surface, and a pipe connection formed by the method. The connecting method comprises the following steps: water blocks are arranged among spiral fins of a pipe end connection area; slots among the fins are filled by a packing material with heat stability; a plastic connecting layer is coated on the external circle of the fin to form a cylindrical pipe connection; and the pipe connections are connected by an electric melting band or a thermal contraction band. The pipe connection comprises the water blocks arranged among the spiral fins; and the foaming material filled in the slots among the fins, and the plastic connecting layer coated on the fins by an extrusion sheet winding mode. The method and the pipe connection solve the problem that the pipes cannot be connected by the electric melting band because of uneven outer walls.

Description

technical field [0001] The invention relates to a method for connecting plastic drainage pipes with spiral reinforcing ribs or equidistant annular reinforcing ribs on the outer wall with an electric hot-melt belt or a heat-shrinkable belt and a pipe joint formed by the method. Background technique [0002] The main working load of plastic drainage pipes is the pressure of external soil and ground vehicles, so it is required to have sufficient ring stiffness. In order to save production costs and effectively improve the ring stiffness of the product, most plastic drainage pipes adopt a structural wall structure, one of which is to have spiral ribs with equal pitch or straight ring ribs with equal pitch on the outer wall of the pipe, and some in There is also a reinforced steel strip compounded in the reinforcing rib, which is specified in ZL200520112528.4 (see figure 1 ). The use of electric melting tape to connect weldable plastic pipes has the advantages of good sealing, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L47/02
Inventor 何轶良
Owner ハルビンスターウェイマシーナリーマニュファクチャリングカンパニーリミテッド
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