CN204254063U - A kind of structure enhancement mode PE helical double-wall corrugated tube - Google Patents

Abstract

The utility model provides a structure-reinforced PE spiral double-wall corrugated pipe, which includes a pipe inner wall, a pipe outer wall, a cavity and a support belt. The inner wall of the pipe is a solid wall layer, and the outer wall of the pipe is a corrugated solid wall layer. There is a cavity between the wall and the outer wall of the tube, the cavity is a hollow annular gap, and a support belt is arranged in the cavity, and the support belt is erected between the inner wall of the tube and the outer wall of the tube, and the support belt is spiral Winding, the support points at both ends of the support band are respectively connected to the peak tops on the inside of the inner wall of the tube and the outer wall of the tube, and the support band is bonded and fixed to the inner wall of the tube and the outer wall of the tube through an adhesive layer. Advantages and beneficial effects of the utility model: the corrugated pipe has good compressive deformation resistance and high ring rigidity, and can prevent the corrugation from collapsing and deforming under load.

Description

A structurally reinforced PE spiral double-wall corrugated pipe

technical field

The utility model relates to a PE spiral corrugated pipe, in particular to a PE spiral double-wall corrugated pipe whose strength is increased through structural changes.

Background technique

At present, the use of high-density polyethylene double-wall corrugated pipes has become more popular in China. As a pipe buried in the ground for drainage, the size of the external pressure it bears reflects the performance of the pipe. The index of the ability to withstand external pressure is is the ring stiffness. If the rigidity of the high-density polyethylene double-wall corrugated pipe ring is not enough, it will cause the pipe to deform due to the inability to withstand external pressure during construction or use, and in severe cases, it will become unusable. How to improve the ring stiffness of the product has become the focus and difficulty in the current high-density polyethylene double-wall corrugated pipe industry.

Contents of the invention

The problem to be solved by the utility model is to provide a structure-reinforced PE spiral double-wall corrugated pipe, which has good compressive deformation resistance and high ring stiffness, and can prevent the corrugation from collapsing and deforming under load.

In order to solve the above technical problems, the technical solution adopted by the utility model is: a structurally reinforced PE spiral double-wall corrugated pipe, including the inner wall of the pipe, the outer wall of the pipe, the cavity and the support belt, the inner wall of the pipe is a solid wall layer, and the pipe The outer wall is a corrugated solid wall layer, there is a cavity between the inner wall of the tube and the outer wall of the tube, the cavity is a hollow annular gap, and a support belt is arranged in the cavity, and the support belt is erected between the inner wall of the tube and the outer wall of the tube. In the middle of the outer wall of the tube, the support band is wound in a spiral shape, and the support points at both ends of the support band are respectively connected to the inner wall of the tube and the top of the peak on the inner side of the outer wall of the tube, and the support band is connected to the inner wall of the tube and the outer wall of the tube through an adhesive layer Adhesive fixation.

Further, the material of the support belt is steel.

Further, the outer surface of the support belt is coated with an adhesive layer.

Further, the inner wall of the tube and the outer wall of the tube are integrally formed, and there is no gap between the trough of the outer wall of the tube and the inner wall of the tube.

The advantages and positive effects of the utility model are: the reinforced PE spiral double-wall corrugated pipe has a three-dimensional support structure, and its erected steel belt has a strong supporting force, which improves the ring stiffness and impact resistance of the pipe, and the pipe The outer wall will not collapse or deform, and the support belt forms a tight bond with the inner and outer walls through a special adhesive layer, with high fastness and reliable performance, and can be widely used in municipal engineering rainwater, sewage discharge, and industrial wastewater discharge wait.

Description of drawings

Fig. 1 is a partial cross-sectional schematic diagram of the utility model.

In the picture:

1-pipe inner wall, 2-pipe outer wall, 3-cavity, 4-support band.

Detailed ways

Specific embodiments of the present utility model are described in detail below in conjunction with accompanying drawings.

As shown in Figure 1, the utility model provides a structurally reinforced PE spiral double-wall corrugated pipe, which includes a pipe inner wall 1, a pipe outer wall 2, a cavity 3 and a support belt 4, the pipe inner wall 1 is a solid wall layer, and the pipe The outer wall 2 is a corrugated solid wall layer. There is a cavity 3 between the inner wall 1 of the tube and the outer wall 2 of the tube. The cavity 3 is a hollow annular gap, and a support belt 4 is arranged in the cavity 3. The supporting band 4 is erected between the inner tube wall 1 and the outer tube wall 2, the supporting band 4 is wound in a spiral shape, and the supporting points at both ends of the supporting band 4 are respectively connected to the crest tops on the inner side of the inner tube wall 1 and the outer tube wall 2. The support band 4 is bonded and fixed to the pipe inner wall 1 and the pipe outer wall 2 through an adhesive layer.

Further, the material of the supporting belt 4 is steel.

Further, the outer surface of the support belt 4 is coated with an adhesive layer.

Further, the inner tube wall 1 and the outer tube wall 2 are integrally formed, and there is no gap between the trough of the outer tube wall 2 and the inner tube wall 1 .

The working process of this example: the processing method of the tube inner wall 1 and the tube outer wall 2 is to extrude separately, the material of the tube inner wall 1 and the tube outer wall 2 is high-density polyethylene, and the tube inner wall 1 and the tube outer wall 2 are in a molten state Composite as a whole, the support band 4 between the tube inner wall 1 and the tube outer wall 2 is bonded and fixed by the resin layer, the support band 4 is spirally wound in the gap between the tube inner wall 1 and the tube outer wall 2, the support band 4 at both ends The supporting point is connected with the crest apex on the inside of the pipe inner wall 1 and the pipe outer wall 2, which effectively improves the ring stiffness and impact resistance of the pipe.

An embodiment of the present utility model has been described in detail above, but the content described is only a preferred embodiment of the present utility model, and cannot be considered as limiting the implementation scope of the present utility model. All equal changes and improvements made according to the application scope of the utility model should still belong to the scope covered by the patent of the utility model.

Claims (4)

1. a structure enhancement mode PE helical double-wall corrugated tube, it is characterized in that: comprise inner tube wall, pipe outer wall, cavity and supporting band, described inner tube wall is real parietal layer, pipe outer wall is the real parietal layer of corrugated, cavity is had between described inner tube wall and pipe outer wall, described cavity is hollow and annular gap, supporting band is provided with in described cavity, described supporting band is erected in the middle of inner tube wall and pipe outer wall, described supporting band is wound around in the shape of a spiral, the strong point at described supporting band two ends is connected with the crest top of inner tube wall and pipe inside outer wall respectively, described supporting band and bondd fixing between inner tube wall and pipe outer wall by adhesive layer.

2. a kind of structure enhancement mode PE helical double-wall corrugated tube according to claim 1, is characterized in that: the material of described supporting band is steel.

3. a kind of structure enhancement mode PE helical double-wall corrugated tube according to claim 1, is characterized in that: described supporting band outer surface scribbles glue-line.

4. a kind of structure enhancement mode PE helical double-wall corrugated tube according to claim 1, is characterized in that: described inner tube wall and pipe outer wall are one-body molded, seamless between the trough of pipe outer wall and inner tube wall.