Drain pipe

Abstract

The drain pipe comprises an inner pipe and a bent pipe, the cross section of the bent pipe is of a bent structure, the bent pipe sequentially comprises an inner layer, a steel belt layer and an outer layer from inside to outside, the bent pipe is spirally wound on the outer side of the inner pipe and connected with the inner pipe into a whole through thermoplastic forming, and a plurality of through holes are formed in the steel belt layer in the thickness direction; the inner layer and the outer layer wrap the steel belt layer and are connected into a whole through extrusion forming, the conditions of deformation, sunken collapse and separation of the bent pipe and the inner pipe are not prone to happening to the drainage pipe, and the overall structure of the drainage pipe is novel.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of pipeline, and particularly relates to a drain pipe. BACKGROUND

[0002] Most of the existing drain pipes adopt plastic pipes or polyethylene pipes, once buried underground, the surface of the drain pipe will appear concave, collapse and other problems after long time use, which affects the normal use of the pipeline. In order to improve the strength of the drain pipe, people wind steel belts outside the drain pipe, and the external steel belt will appear loose and separate phenomenon between the drain pipe after long time use, and the drain pipe will still appear concave and collapse problems. CONTENT

[0003] The utility model discloses a drain pipe to solve at least one problem of the prior art.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a drain pipe, including inner tube, bending pipe, the bending pipe cross section has bending structure, and the bending pipe is successively including inner layer, steel band layer and outer layer from inside to outside, and the bending pipe is spirally wound on the outside of the inner tube and is connected with the inner tube as a whole through thermoplastic forming, the steel band layer is equipped with a plurality of through holes along the thickness direction, and the inner layer and the outer layer cover the steel band layer and are connected as a whole through extrusion forming.

[0005] As preferred, the shape of the through hole is triangle or quadrilateral or pentagon or circle or semicircle.

[0006] As preferred, the bending pipe further includes pipe belt, the pipe belt is connected with the bending pipe to seal the bending notch of the bending pipe, and the pipe belt is spirally wound on the outside of the inner tube and is connected with the inner tube as a whole through thermoplastic forming.

[0007] As preferred, the elastic member is arranged between the bending pipe and the pipe belt.

[0008] As preferred, the two side upper surfaces of the pipe belt are provided with protruding parts, one end of the bending pipe close to the pipe belt is bent outward on both sides until being connected with the protruding parts, and the bending pipe and the pipe belt are connected as a whole through glue or thermoplastic forming.

[0009] As preferred, the pipe belt is provided with notches in the axial direction, and the two ends of the bending pipe are inserted into the notches and connected as a whole through glue or thermoplastic forming.

[0010] As preferred, the inner tube is a plastic pipe or a plastic pipe, and the inner layer and the outer layer are made of polyethylene material.

[0011] As preferred, the bending part of the bending pipe is triangular or quadrilateral in cross section.

[0012] As a preference, one end of the inner tube is provided with a plug, and the other end of the inner tube is provided with a slot matched with the plug.

[0013] The utility model discloses beneficial effect: the utility model discloses through the bending pipe spiral winding in the inner tube outside and through the thermoplastic forming and is connected as a whole, and the bending pipe includes inner layer, steel band layer and outer layer from inside to outside, and the steel band layer is provided with through -hole, and the inner layer and outer layer cover steel band layer and are connected as a whole through extrusion forming, make the drain pipe have good strength, and it is difficult to deform, recess collapse and bending pipe and inner tube separate condition when using, and the overall structure of drain pipe is novel.

[0014] The features and advantages of the utility model will be explained in detail with the combination of the embodiments and the drawings. DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model embodiment.

[0016] Figure 2 It is the bending pipe sectional view of the utility model embodiment.

[0017] Figure 3 It is the bending pipe sectional view of the utility model embodiment.

[0018] Figure 4 It is the bending pipe sectional view of the utility model embodiment.

[0019] Figure 5 It is the bending pipe schematic diagram of the utility model embodiment.

[0020] Figure 6 It is the steel band layer structure schematic diagram of the utility model embodiment.

[0021] In the drawing: 1, bending pipe;2, inner tube;11, inner layer;12, steel band layer;13, outer layer;14, pipe band;120, through -hole. CONCRETE IMPLEMENTING METHOD

[0022] To make the purposes, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. In the description of the present application, it should be noted that the positions or location relations indicated by the terms “inner”, “outer”, and the like are based on the positions or location relations shown in the drawings, or the positions or location relations of the products of the present application when they are usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated devices or elements must have a particular position, be constructed and operated in a particular position, and therefore cannot be understood as a limitation on the present application. In addition, the terms “first”, “second”, and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms “set”, “connected” should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0024] The present application will be described in detail below with reference to the drawings.

[0025] Referring to Figures 1 to 6 The present embodiment provides a drain pipe, which comprises a drain pipe, comprising an inner pipe 2 and a bent pipe 1, the cross section of the bent pipe 1 has a bending structure, the bent pipe 1 comprises an inner layer 11, a steel belt layer 12 and an outer layer 13 from inside to outside in sequence, the bent pipe 1 is spirally wound outside the inner pipe 2 and is connected with the inner pipe 1 as a whole through thermoplastic forming, the steel belt layer 12 is provided with a plurality of through holes 120 along the thickness direction, and the inner layer 11 and the outer layer 13 cover the steel belt layer 12 and are connected as a whole through extrusion forming.

[0026] In actual production, the inner layer 11, the outer layer 13 and the steel strip layer 12 can also be connected into one body through hot plastic forming, the inner layer 11 and the outer layer 13 are connected together through the through holes 120, a plurality of through holes 120 are arranged to make the bending pipe have better sealing performance, and when local damage of the bending pipe occurs, water accumulation at the damaged position will not affect the separation of other positions of the bending pipe; the bending pipe 1 is spirally wound outside the inner pipe 2 and then connected together through hot plastic forming, so that the bending pipe 1 and the inner pipe 2 will not be separated and fall off during use of the drainage pipe, the bending pipe has a certain strength and can prevent the pipe body from being depressed when the drainage pipe is pressed; when the bending pipe 1 is connected with the inner pipe 2, the notches of the bending structure face the inner pipe; the steel strip layer 12 can be single-layer or multi-layer structure, and the number of the steel strip layer 12 can be selected according to production requirements.

[0027] In the embodiment, referring to Figure 6 , the shape of the through hole 120 is triangular, quadrangular, pentagonal, circular or semicircular, of course, the shape of the through hole 120 can also be other shapes such as hexagonal, and the shape of the through hole can be selected according to production requirements.

[0028] In the embodiment, referring to Figures 2 to 5 , the bending pipe 1 further comprises a pipe belt 14, the pipe belt 14 is connected with the inner layer of the bending pipe 1 to seal the bending notches of the bending pipe 1, the pipe belt 14 is spirally wound outside the inner pipe 2 and connected with the inner pipe into one body through hot plastic forming, the pipe belt 14 is arranged on the bending pipe 1 to form a cavity between the bending pipe 1 and the pipe belt 14, improve the buffering performance of the bending pipe 1, and the pipe belt 14 can improve the contact area between the bending pipe 1 and the inner pipe 2, and further improve the connection firmness.

[0029] In the embodiment, the inner layer 11 of the bending pipe 1 and the pipe belt 14 are provided with elastic members, the elastic members include elastic sheets or springs, and the arrangement of the elastic members makes the bending pipe 1 have better buffering effect and be less likely to be deformed.

[0030] In the embodiment, referring to Figure 2 and Figure 4 , the two side upper surfaces of the pipe belt 14 are provided with protruding parts, the two sides of one end of the bending pipe 1 close to the pipe belt are bent outward until connected with the protruding parts, and the bending pipe 1 and the pipe belt 14 are connected into one body through glue or hot plastic forming.

[0031] In the embodiment, the pipe belt 14 is provided with notches in the axial direction, and the two ends of the bending pipe 1 are inserted into the notches and connected into one body through glue or hot plastic forming.

[0032] In the embodiment, the inner pipe 2 is a plastic pipe or a plastic tube, and the inner layer 11 and the outer layer 13 are made of polyethylene material.

[0033] In the embodiment, referring toFigures 2 to 5 The bending position section of the bending pipe 1 is triangular or quadrilateral, and of course, the bending position section of the bending pipe 1 can also adopt other shapes, such as pentagonal, and the shape of the bending position section can also be selected according to the production and use requirements.

[0034] In the embodiment, one end of the inner pipe 2 is provided with a plug, and the other end of the inner pipe 2 is provided with a plug slot matched with the plug, so as to facilitate the disassembly and fixation of the two adjacent drain pipes. In order to improve the sealing performance of the connection of the two drain pipes, a sealing ring can also be arranged at the connection position of the inner pipes of the two drain pipes.

[0035] The above embodiment is a description of the utility model, not a limitation of the utility model, and any simple transformation of the utility model belongs to the protection scope of the utility model.

Claims

1. A drain pipe, characterized by: The utility model relates to a pipe, which comprises an inner tube and a bent pipe, the cross section of the bent pipe has a bent structure, the bent pipe comprises an inner layer, a steel belt layer and an outer layer from inside to outside, the bent pipe is spirally wound outside the inner tube and is connected with the inner tube by hot plastic forming, the steel belt layer is provided with a plurality of through holes along the thickness direction, and the inner layer and the outer layer cover the steel belt layer and are connected by extrusion forming.

2. The drain according to claim 1, wherein: The shape of the through hole is triangular, quadrangular, pentagonal, circular or semicircular.

3. A drain according to claim 1 or 2, wherein: The bent pipe further comprises a pipe belt, the pipe belt is connected with the bent pipe to seal the bent notch of the bent pipe, the pipe belt is spirally wound outside the inner tube and is connected with the inner tube by hot plastic forming.

4. The drain according to claim 3, wherein: An elastic member is arranged between the bent pipe and the pipe belt.

5. The drain according to claim 3, wherein: The two side upper surfaces of the pipe belt are provided with protruding parts, the bent pipe is bent outwards at both sides of one end close to the pipe belt until connected with the protruding parts, the bent pipe and the pipe belt are connected by glue or hot plastic forming.

6. The drain according to claim 3, wherein: The pipe belt is provided with notches in the axial direction, both ends of the bent pipe are inserted into the notches and are connected by glue or hot plastic forming.

7. The drain according to claim 1, wherein: The inner tube is a plastic tube or a plastic pipe, and the inner layer and the outer layer are made of polyethylene material.

8. The drain according to claim 1, wherein: The bent part of the bent pipe has a triangular or quadrangular cross section.

9. The drain according to claim 1, wherein: One end of the inner tube is provided with a plug, and the other end of the inner tube is provided with a plug slot matched with the plug.

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