MASPE composite steady-state pipe for trenchless engineering

Abstract

The utility model discloses an MASPE composite steady-state pipe for trenchless engineering. The composite steady-state pipe is formed by spirally winding a winding single body. Each winding single body comprises an outer protective layer and a lining layer, a steel wire mesh belt is clamped between the outer protective layer and the lining layer, and the two ends of the steel wire mesh belt are sealed inside; the outer protection layer and the lining layer are integrally formed through hot melt extrusion by adopting a double-layer co-extrusion technology, and protruding combination parts are arranged at the two ends of each winding single body. According to the utility model, the steel wire mesh belt is embedded inside in a hot melting state when the winding single body is subjected to extrusion molding, so that the outer protective layer and the lining layer do not have layered surfaces, the structure is integrally molded, the phenomenon of stripping does not exist, and the two ends of the steel wire mesh belt are sealed inside, so that the service life of the cable is prolonged. In this way, when the winding single bodies are formed in a winding mode, the hot melting bonding capacity of the bonding faces cannot be affected, the protruding bonding portions increase the bonding area in the winding process, and meanwhile spiral reinforcing ribs can be formed on the surface of the pipeline.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of high polymer pipe, especially relates to a MASPE composite steady pipe for trenchless engineering. BACKGROUND

[0002] Trenchless engineering refers to the construction engineering of laying, replacing and repairing various underground pipelines through guiding, directional drilling and other ways under the condition of extremely small surface excavation (generally refers to small area excavation of entrance and exit), using various rock and soil drilling equipment and technical means, due to the particularity of construction, the pipeline needs to have the conventional function and also needs to have the greater tensile strength and wear resistance strength, so as to withstand the strong traction and friction.

[0003] The MASPE composite steady pipe for trenchless engineering currently adopted solves the above problems through the way of double-layer composite (the outer layer is wear-resistant material, and the inner layer is antibacterial and corrosion-resistant material), and the middle is steel wire mesh, when processing, the inner layer is extruded first, then the steel wire mesh sleeve is sleeved, and then the outer layer is extruded after being bonded by resin, since the inner and outer layers are not extruded at the same time in the hot melt state, and the inner layer is formed when the outer layer is extruded, so that the inner and outer layers are not completely hot melted together, so that the peeling occurs due to the different deformation amounts of the inner and outer sides when bending and pulling, thereby affecting the service life of the pipeline. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem in the above background technology by providing a MASPE composite steady pipe for trenchless engineering.

[0005] The technical scheme of the utility model is as follows:

[0006] A MASPE composite steady pipe for trenchless engineering, the composite steady pipe is formed by winding single bodies in a spiral manner; the single body comprises an outer protective layer and an inner lining layer, a steel wire mesh belt is clamped between the outer protective layer and the inner lining layer, and the two ends of the steel wire mesh belt are closed inside; the outer protective layer and the inner lining layer are integrally hot melt extruded by double-layer co-extrusion technology, and the two ends of the single body have protruding joint parts.

[0007] Further, the joint parts are in the shape of an arch bridge, a semicircle or an isosceles trapezoid after alignment.

[0008] Further, the hot melt joint surface of the single body clamps a steel wire.

[0009] Further, the steel wire is two, and is located at the outer protective layer and the inner lining layer respectively.

[0010] The utility model has the advantages of:

[0011] The utility model reserves the structure advantage of the prior art MASPE composite steady pipe for trenchless engineering, but the steel wire mesh belt is embedded in the hot melt state in the inside when the winding monomer is extruded, so that the outer protective layer and the inner lining layer do not have a layered surface, the structure is integrally formed, there is no peeling phenomenon, and the two ends of the steel wire mesh belt are closed in the inside, so that the hot melt bonding capacity of the bonding surface is not affected when the winding monomer is wound and formed, the convex bonding part not only increases the bonding area during winding, but also forms a spiral reinforcing rib on the surface of the pipe. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] In the drawing: 1-winding monomer, 2-outer protective layer, 3-inner lining layer, 4-steel wire mesh belt, 5-bonding part, 6-steel wire. DETAILED DESCRIPTION

[0014] The specific embodiments of the utility model will be further described below in combination with the drawings. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation on 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.

[0015] As Figure 1 indicated:

[0016] A MASPE composite steady pipe for trenchless engineering, the composite steady pipe is formed by winding monomers 1 spirally wound; the winding monomer 1 includes an outer protective layer 2 and an inner lining layer 3, a steel wire mesh belt 4 is clamped between the outer protective layer 2 and the inner lining layer 3, and the two ends of the steel wire mesh belt 4 are closed in the inside; the outer protective layer 2 and the inner lining layer 3 are integrally hot melt extruded by double-layer co-extrusion technology, and have a protruding bonding part 5 at the two ends of the winding monomer 1.

[0017] The improvement of the utility model is that the interlayer structure of the prior art MASPE composite steady pipe for trenchless engineering is changed into a winding structure, so that the steel wire mesh belt 4 can be embedded in the hot melt state in the inside when the winding monomer 1 is extruded, so that the outer protective layer 2 and the inner lining layer 3 do not have a layered surface, the structure is integrally formed, there is no peeling phenomenon, and the two ends of the steel wire mesh belt 4 are closed in the inside, so that the hot melt bonding capacity of the bonding surface is not affected when the winding monomer 1 is wound and formed, the protruding bonding part 5 not only increases the bonding area during winding, but also forms a spiral reinforcing rib on the surface of the pipe, increases the structural strength, and the bonding part 5 can be in the shape of an arch bridge, a semicircle or an isosceles trapezoid after alignment.

[0018] In order to enhance the strength, steel wire 6 can also be clamped on the hot melt bonding surface of the winding unit 1, and when the winding unit 1 is wound, the steel wire 6 is simultaneously installed on the bonding surface. The steel wire 6 is two, which are respectively located on the outer sheath 2 and the inner lining 3.

[0019] The embodiments of the present application are described in detail above with reference to the drawings, but the present application 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 present application, and still fall within the protection scope of the present application.

Claims

1. A MASPE composite steady pipe for trenchless engineering, characterized by: The composite steady-state pipe is formed by winding single bodies; the single body comprises an outer protective layer and an inner lining layer, a steel mesh belt is clamped between the outer protective layer and the inner lining layer, and the two ends of the steel mesh belt are closed inside; the outer protective layer and the inner lining layer are integrally formed by hot melting extrusion through double-layer co-extrusion technology, and the two ends of the single body have protruding joint parts.

2. The MASPE composite steady pipe for trenchless engineering according to claim 1, characterized by: The joint parts are in the shape of an arch bridge, a semicircle or an isosceles trapezoid after alignment.

3. The MASPE composite steady pipe for trenchless engineering according to claim 1, characterized by: The hot melting joint surface of the single body clamps a steel wire.

4. The MASPE composite steady-state pipe for trenchless engineering according to claim 3, characterized in that: The steel wire is two, respectively located in the outer protective layer and the inner lining layer.

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