MASHDPE hollow plastic steel drainage pipe

Abstract

The utility model discloses an MASHDPE hollow plastic steel drainage pipe which comprises an outer pipe, a special-shaped steel belt and an inner pipe formed by spirally winding a special-shaped MASHDPE belt. The two ends of the special-shaped MASHDPE belt are upwards and vertically provided with supporting parts in a protruding mode, the top ends of the supporting parts are inwards and vertically provided with horizontal parts, a set of buckles are symmetrically arranged on the surface of the special-shaped MASHDPE belt with the central axis as the center, the special-shaped steel belt is in an arch bridge shape, the bottoms of the two ends of the special-shaped steel belt are inserted into the buckles to be fixed and spirally wound along with the special-shaped MASHDPE belt, and the top end of the special-shaped steel belt is flush with the horizontal parts. The outer pipe is fixedly arranged outside the special-shaped steel belt and the inner pipe in a sleeving mode. According to the supporting part, the spiral winding bonding area can be increased, a spiral supporting rib is formed after bonding, and the supporting part is connected with the outer pipe to form a hollow pipe wall with a spiral cavity. The horizontal parts are bonded to form a supporting platform, the bonding area of the ribs and the outer pipe is increased, and the inner and outer wall structures of the pipeline are stable. The spiral supporting ribs and the special-shaped steel strips greatly improve the ring stiffness, and the collapse rate of the cavity can be effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of high polymer pipe, particularly relates to a MASHDPE hollow plastic steel drainage pipe. BACKGROUND

[0002] Most of the drainage pipes are buried pipes, which not only need good compression resistance, but also preferably have noise reduction capacity, so a series of hollow wall drainage pipes appear on the market, the pipe wall of which has a cavity, which can effectively reduce noise and enhance compression resistance, but since the existing hollow wall drainage pipes are mostly integrally extruded, the ribs supporting the cavity can only be straight, although the compression resistance is increased, but since the cavity is horizontal, the outer wall under pressure is prone to collapse, and the strength of the plastic itself is limited, so the ring stiffness is limited to improve, and if buried too deep, the pipe is prone to burst. SUMMARY

[0003] The utility model solves the technical problems in the above background art by providing a MASHDPE hollow plastic steel drainage pipe.

[0004] The utility model discloses a technical scheme as follows:

[0005] A MASHDPE hollow plastic steel drainage pipe, comprising an outer pipe, a special-shaped steel belt and an inner pipe spirally wound by a special-shaped MASHDPE belt, wherein the two ends of the special-shaped MASHDPE belt are vertically protruded to set a support part, the top end of the support part is vertically set to a horizontal part inward, a group of buckles are symmetrically set on the surface of the special-shaped MASHDPE belt with a center axis, the special-shaped steel belt is in the shape of an arch bridge, the bottom of the two ends is respectively inserted into the buckle to be fixed and spirally wound with the special-shaped MASHDPE belt, and the top end of the special-shaped steel belt is flush with the horizontal part; the outer pipe is sleeved and fixed outside the special-shaped steel belt and the inner pipe.

[0006] Further, the special-shaped steel belt is composed of a horizontal section, an inclined support section and a plug-in section, wherein the inclined support section is symmetrically connected to the two ends of the horizontal section, and the plug-in section is horizontally connected to the bottom of the inclined support section and is respectively inserted into the buckle.

[0007] Further, the horizontal section, the inclined support section and the plug-in section are all circularly arc transitioned.

[0008] Further, the surface of the plug-in section of the special-shaped steel belt and the upper surface of the horizontal section are coated with adhesive resin.

[0009] Further, the width of the bottom of the special-shaped steel belt is 40%-50% of the overall width of the special-shaped MASHDPE belt.

[0010] The utility model has the advantages that:

[0011] The setting of the support part can increase the bonding area during spiral winding, and the support rib in spiral shape is formed after bonding to support and connect the outer pipe to form the hollow pipe wall structure with spiral cavity, the setting of the horizontal part forms a support platform after bonding, which is beneficial to increase the bonding area of the support rib and the outer pipe, thereby ensuring the stability of the inner and outer wall structure of the pipeline, and the support rib in spiral shape and the special-shaped steel belt can greatly improve the ring stiffness of the pipeline and effectively reduce the collapse of the cavity. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0013] Figure 2 It is Figure 1 the enlarged schematic view of part A in the figure;

[0014] Figure 3 It is a partial sectional view of the utility model.

[0015] In the figure: 1-inner pipe, 11-support rib, 12-support platform, 2-special-shaped MASHDPE belt, 21-buckle, 22-support part, 23-horizontal part, 3-special-shaped steel belt, 31-horizontal section, 32-inclined support section, 33-insertion section, 4-outer pipe. DETAILED DESCRIPTION

[0016] The specific embodiments of the utility model will be further described below in combination with the drawings. It needs to be explained here that the description of these embodiments is used to help understand the utility model, but does not constitute the limitation of the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0017] As Figures 1-3 shown:

[0018] A MASHDPE hollow plastic steel drainage pipe, comprising an outer pipe 4, a special-shaped steel belt 3 and an inner pipe 1 formed by spiral winding of a special-shaped MASHDPE belt 2 (MASHDPE is a high molecular polyethylene (HDPE) material treated by a special process, which belongs to the prior art); the two ends of the special-shaped MASHDPE belt 2 are vertically protrudingly provided with support parts 22, the top end of the support part 22 is vertically provided with a horizontal part 23 inward, a group of buckles 21 are symmetrically provided on the surface of the special-shaped MASHDPE belt 2 with a center axis, the special-shaped steel belt 3 is in the shape of an arch bridge, the bottom of the two ends is respectively inserted into the buckle 21 and fixed and spiral wound with the special-shaped MASHDPE belt 2, and the top end of the special-shaped steel belt 3 is flush with the horizontal part 23; the outer pipe 4 is sleeved and fixed on the outside of the special-shaped steel belt 3 and the inner pipe 1.

[0019] As an optimized scheme, the special-shaped steel belt 3 is composed of a horizontal section 31, a diagonal support section 32 and a plug-in section 33, wherein the diagonal support section 32 is symmetrically connected at both ends of the horizontal section 31, and the plug-in section 33 is horizontally connected at the bottom of the diagonal support section 32 and is inserted into the buckle 21, so that the structure can improve the supporting area of the top of the special-shaped steel belt 3, thereby improving the ring stiffness of the pipeline, and the plug-in section 33 surface of the special-shaped steel belt 3 and the upper surface of the horizontal section 31 can be coated with adhesive resin, at this time, the bonding area is also increased, and the overall structural stability is stronger, in order to increase the elasticity of the special-shaped steel belt 3, the horizontal section 31, the diagonal support section 32 and the plug-in section 33 are all circularly arc transitioned.

[0020] Considering the bending arrangement of the pipeline, the width of the bottom of the special-shaped steel belt 3 is 40%-50% of the overall width of the special-shaped MASHDPE belt 2, so as to reserve sufficient bending freedom.

[0021] The utility model discloses a first special-shaped steel belt 3 is inserted into special-shaped MASHDPE belt 2, then spiral winding is carried out synchronously, and through hot melt connection, the setting of the supporting part 22 can increase the bonding area when spiral winding, and the spiral-shaped supporting rib 11 is formed after bonding to support and connect the outer pipe 4, thereby forming a hollow pipe wall structure with spiral cavity, the setting of the horizontal part 23 forms a supporting platform 12 after bonding, which is beneficial to increase the bonding area of the supporting rib 11 and the outer pipe 4, thereby ensuring the stability of the inner and outer wall structure of the pipeline, and the spiral-shaped supporting rib 11 and the special-shaped steel belt can greatly improve the ring stiffness of the pipeline and effectively reduce the collapse of the cavity.

[0022] The above describes the embodiments of the utility model in detail in combination with the drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, replacements and modifications can be made to these embodiments without departing from the principles and spirits of the utility model, and still fall within the protection scope of the utility model.

Claims

1. A MASH DPE hollow plastic steel drain pipe, characterized by: It comprises an outer tube, a special-shaped steel belt and an inner tube spirally wound by the special-shaped MASHDPE belt; the two ends of the special-shaped MASHDPE belt are vertically provided with support parts, the top end of the support part is vertically provided with a horizontal part inward, a group of buckles are symmetrically arranged on the surface of the special-shaped MASHDPE belt with a center axis, the special-shaped steel belt is in the shape of an arch bridge, the bottom of the two ends is respectively inserted into the buckle and fixed and spirally wound with the special-shaped MASHDPE belt, and the top end of the special-shaped steel belt is flush with the horizontal part; the outer tube is sleeved and fixed outside the special-shaped steel belt and the inner tube.

2. The MASH DP E hollow plastic storm drain pipe according to claim 1, characterized in that: The special-shaped steel belt is composed of a horizontal section, an inclined support section and a plug-in section, wherein the inclined support section is symmetrically connected at the two ends of the horizontal section, and the plug-in section is horizontally connected at the bottom of the inclined support section and is respectively inserted into the buckle.

3. The MASH DP E hollow plastic storm drain pipe according to claim 1, wherein: The horizontal section, the inclined support section and the plug-in section are all circular arc transitions.

4. The MASH DP E hollow plastic storm drain pipe according to claim 2, wherein: The surface of the plug-in section of the special-shaped steel belt and the upper surface of the horizontal section are both coated with adhesive resin.

5. The MASH DPE hollow plastic steel drain pipe according to any one of claims 1-4, characterized in that: The width of the bottom of the special-shaped steel belt is 40%-50% of the overall width of the special-shaped MASHDPE belt.

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