CN210566765U

CN210566765U - High strength resistance to compression drain pipe

Info

Publication number: CN210566765U
Application number: CN201920502980.3U
Authority: CN
Inventors: 甘志超
Original assignee: Foshan Baitong Pipe Co Ltd
Current assignee: Foshan Baitong Pipe Co Ltd
Priority date: 2019-04-12
Filing date: 2019-04-12
Publication date: 2020-05-19
Anticipated expiration: 2029-04-12

Abstract

The utility model discloses a high strength resistance to compression drain pipe, including inlayer, sandwich layer and skin, special-shaped cavity structure has between inlayer and the sandwich layer, and pack epoxy and silica particles's mixture in the cavity structure, shape after this mixture solidification is the same with cavity structure's shape, thereby form special-shaped bearing structure, the pressure that this bearing structure can effectively disperse tubular product and receive, the breakage that has avoided tubular product stress concentration to lead to when receiving the extrusion, and play the effect of stiffening rib, the intensity and the compressive property of tubular product have been improved.

Description

High strength resistance to compression drain pipe

[ technical field ] A method for producing a semiconductor device

The utility model relates to a tubular product field, concretely relates to high strength resistance to compression drain pipe.

[ background of the invention ]

The winding pipe is a pipe formed by winding and welding resin materials such as High Density Polyethylene (HDPE), polyvinyl chloride (PVC) and the like serving as raw materials, and is mainly divided into a large-diameter winding pipe, a double-wall winding pipe, a hollow winding pipe and the like, the resin materials such as the High Density Polyethylene (HDPE), the polyvinyl chloride (PVC) and the like not only ensure the product forming process and the product quality due to the excellent fusion welding performance of the resin materials, but also provide various reliable modes for construction connection, such as electrothermal fusion welding, thermal contraction connection and the like, and meanwhile, the resin materials are an important reason for seldom occurring leakage conditions, and just because of the reason, the pipe has the unique environment-friendly function which other pipes do not have, so that the pipe is widely applied to the fields of drainage pipelines, conveying pipelines, electric wires and cables and the like.

Although the resin material has the advantages of light weight, easy molding and the like, the pipe made of the resin material has insufficient pressure resistance, is easy to deform and even crack under a high-pressure environment, and although the pressure resistance is improved by compounding the concrete and the resin pipe in the prior art to form the multilayer composite pipe, the structure greatly increases the weight of the pipe, loses the advantage of light weight of the resin material, and has higher manufacturing cost and higher requirements on equipment. Therefore, how to provide a pipe with high strength and excellent pressure resistance is a technical problem to be solved in the field.

[ Utility model ] content

An object of the utility model is to provide an intensity is high, and has the drain pipe of excellent compressive property.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a high strength resistance to compression drain pipe, includes inlayer, sandwich layer and skin, and the inlayer is HDPE extrusion pipe, and the sandwich layer is PVC extrusion pipe, and the inner wall circumference of this PVC extrusion pipe evenly is provided with along axially extended's the sunken of falling T shape, and HDPE extrusion pipe's external diameter is less than the internal diameter of PVC extrusion pipe for the cavity structure is injectd jointly to the inner wall surface of PVC extrusion pipe and the outer wall surface of HDPE extrusion pipe, the cavity structure comprises annular cavity and evenly distributed around the annular cavity and with the T shape cavity of annular cavity intercommunication, and it has the mixture of epoxy and silica particle to fill in the cavity structure, the skin is three layer construction's composite strip, three layer construction's composite strip includes from interior to exterior stacks gradually the first PVC strip, glass fiber impregnated cloth and the second PVC strip that bonds.

Preferably, the number of T-shaped cavities is at least 6.

Preferably, the volume percentage of the silica particles in the mixture of the epoxy resin and the silica particles is 20% to 40%.

Preferably, the first PVC tape, the glass fiber impregnated cloth, and the second PVC tape are bonded by a polyurethane adhesive.

Preferably, the depth of the inverted T-shaped recess is greater than one-half of the wall thickness of the PVC extruded tube.

The utility model discloses a special-shaped cavity structure has between the inlayer of high strength resistance to compression drain pipe and the sandwich layer to pack the mixture of epoxy and silica granule in the cavity structure, the shape after this mixture solidification is the same with the shape of cavity structure, thereby forms special-shaped bearing structure, the use of thermosetting material epoxy in the mixture makes the mobility of mixture, contour machining good on the one hand, and the shaping body intensity that forms with silica granule after the solidification is high, and the holding power is strong; the supporting structure can effectively disperse the pressure of the pipe, avoids the breakage caused by stress concentration when the pipe is extruded, plays the role of a reinforcing rib, and improves the strength and the compressive property of the pipe.

[ description of the drawings ]

Fig. 1 is the cross section schematic diagram of the high strength resistance to compression drain pipe of the utility model.

Description of reference numerals: 1-inner layer, 2-core layer, 3-outer layer, 4-annular cavity, 5-T-shaped cavity, 6-first PVC strip, 7-glass fiber impregnated cloth, 8-second PVC strip.

[ detailed description ] embodiments

The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.

Example 1

As shown in fig. 1, the utility model discloses a high strength resistance to compression drain pipe, including inlayer 1, sandwich layer 2 and outer 3, inlayer 1 is HDPE extrusion molding pipe, sandwich layer 2 is PVC extrusion pipe, the inner wall circumference of this PVC extrusion pipe evenly is provided with along axially extended shape of falling T sunken, should fall the depth of T sunken and be greater than the half of PVC extrusion pipe wall thickness, HDPE extrusion molding pipe's external diameter is less than the internal diameter of PVC extrusion pipe for the internal surface of PVC extrusion pipe and the surface of HDPE extrusion molding pipe prescribe a limit to the cavity structure jointly, the cavity structure comprises annular cavity 4 and the T shape cavity 5 that evenly distributed is around annular cavity 4 and communicates with annular cavity 4, it has the mixture that 60% (volume percent) epoxy and 40% (volume percent) silica granule constitute to fill in the cavity structure, outer 3 is three layer construction's composite strip, the composite strip with the three-layer structure comprises a first PVC strip 6, a glass fiber impregnated cloth 7 and a second PVC strip 8 which are sequentially laminated and bonded from inside to outside through a polyurethane adhesive.

The special-shaped cavity structure is arranged between the inner layer and the core layer of the drain pipe, the mixture of epoxy resin and silicon dioxide particles is filled in the cavity structure, the shape of the mixture after solidification is the same as that of the cavity structure, the special-shaped supporting structure is formed, the pressure of the pipe can be effectively dispersed by the supporting structure, the breakage caused by stress concentration when the pipe is extruded is avoided, the reinforcing rib function is achieved, and the strength and the compression resistance of the pipe are improved.

Although the present invention has been described in connection with the above embodiments, the scope of the present invention is not limited thereto, and modifications, replacements, and the like to the above members are all within the scope of the claims of the present invention without departing from the concept of the present invention.

Claims

1. The utility model provides a high strength resistance to compression drain pipe, includes inlayer, sandwich layer and skin, its characterized in that, the inlayer is HDPE extrusion molding pipe, the sandwich layer is PVC extrusion pipe, the inner wall circumference of PVC extrusion pipe evenly is provided with along axially extended's the sunken shape of falling T, HDPE extrusion molding pipe's external diameter is less than the internal diameter of PVC extrusion pipe makes the inner wall surface of PVC extrusion pipe with HDPE extrusion molding pipe's outer wall surface prescribes a limit to the cavity structure jointly, the cavity structure comprises annular cavity and evenly distributed around the annular cavity and with the T shape cavity of annular cavity intercommunication, the skin is three layer construction's composite strip, three layer construction's composite strip includes from interior to exterior stacks gradually the first PVC strip, glass fiber impregnated cloth and the second PVC strip that bonds.

2. A high strength, pressure resistant drain pipe as in claim 1 wherein said T-shaped cavities are at least 6 in number.

3. The high strength, pressure resistant drain pipe according to any one of claims 1-2, wherein the first PVC tape, the glass fiber impregnated cloth, and the second PVC tape are bonded by a polyurethane adhesive.

4. The high strength, pressure resistant drain pipe of any one of claims 1-2 wherein the depth of the inverted T-shaped depression is greater than one-half the wall thickness of the PVC extruded pipe.