CN219828013U

CN219828013U - Corrosion-resistant double-wall corrugated pipe

Info

Publication number: CN219828013U
Application number: CN202321275491.1U
Authority: CN
Inventors: 孙勇斌; 蒋卫星; 蒋伟亮
Original assignee: Yixing Youtong Plastic Co ltd
Current assignee: Yixing Youtong Plastic Co ltd
Priority date: 2023-05-24
Filing date: 2023-05-24
Publication date: 2023-10-13
Anticipated expiration: 2033-05-24

Abstract

The utility model relates to the technical field of double-wall corrugated pipe structural design, and discloses a corrosion-resistant double-wall corrugated pipe, which comprises an inner layer pipe, wherein an outer layer pipe is arranged on the outer wall of the inner layer pipe, a plurality of arc-shaped corrugations which are orderly arranged are fixedly connected on the outer wall of the outer layer pipe, telescopic clamping plates are slidably connected on the four sides of the outer diameters of the front end and the rear end of the outer layer pipe, connecting grooves are formed in the four sides of the outer diameters of the front end and the rear end of the inner layer pipe, the shape of one end of the inner side of the telescopic clamping plates is matched with the shape of the connecting grooves, the outer diameter of the inner layer pipe is tightly attached to the outer wall surface of the outer layer pipe, and polyethylene wear-resistant layers are arranged on the outermost layers of the inner layer pipe and the outer layer pipe. According to the utility model, the telescopic clamping plate and the threaded limiting column are arranged, and the threaded limiting column on the inner wall of the fixed block is inserted into the slot on the outer diameter inner wall of the outer layer pipe for fixing, so that the inner layer pipe can be conveniently installed and disassembled, and the inner layer pipe can be taken out for recovery even if the outer wall of the outer layer pipe is damaged.

Description

Corrosion-resistant double-wall corrugated pipe

Technical Field

The utility model relates to the technical field of double-wall corrugated pipe structural design, in particular to a corrosion-resistant double-wall corrugated pipe.

Background

The double-wall corrugated pipe is a pipeline product formed by inner and outer double-layer pipe walls, and is widely applied to the fields of municipal engineering, construction, water supply and drainage, highway tunnel, subway, tunnel ventilation and the like.

At present, the inner layer pipe material of the double-wall corrugated pipe in the market is often expensive, the outer layer pipe is damaged firstly under the general condition, the inner layer pipe is kept complete, but the inner layer of the pipe can be damaged quickly after the outer layer pipe is damaged, so that the corrugated pipe can be discarded after the outer layer pipe is damaged, but the inner layer pipe is intact, and resources are wasted.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a corrosion-resistant double-wall corrugated pipe.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a corrosion-resistant double-walled bellows, includes the inlayer pipe, inlayer pipe outer wall is provided with the outer pipe, outer pipe outer wall fixedly connected with a plurality of arrange orderly arc ripple, the equal sliding connection of both ends external diameter four sides has flexible cardboard around the outer pipe, both ends external diameter four sides all are provided with the spread groove around the inlayer pipe, the shape of the inboard one end of flexible cardboard agrees with the shape of spread groove mutually, inlayer pipe external diameter is tightly pasted with outer pipe outer wall surface, inlayer pipe and outer pipe are all set up to the polyethylene wearing layer, the inboard one end fixedly connected with polypropylene impact layer of polyethylene wearing layer.

As a further description of the above technical solution:

and one end of the inner side of the polypropylene impact-resistant layer is fixedly connected with a polyurethane heat-insulating layer.

As a further description of the above technical solution:

one end of the inner side of the polyurethane heat insulation layer is fixedly connected with a high-temperature-resistant anti-corrosion layer.

As a further description of the above technical solution:

the inner side end of the telescopic clamping plate is fixedly connected with a tension spring corresponding to one side of the outer layer pipe, and the inner side end of the tension spring is fixedly connected to the inner wall of the outer layer pipe.

As a further description of the above technical solution:

the outer wall of the telescopic clamping plate is fixedly connected with fixing blocks on two sides of the opposite end, and one end of the inner side of each fixing block is tightly attached to the outer diameter surface of the outer tube.

As a further description of the above technical solution:

the inner wall of the fixed block is connected with a threaded limit column in a threaded manner and penetrates through two sides.

As a further description of the above technical solution:

the outer diameters of the front end and the rear end of the outer tube are respectively provided with a jack corresponding to the two sides of the telescopic clamping plate, and the shape of the outer wall of the opposite end of the threaded limiting column is matched with the shape of the jacks.

As a further description of the above technical solution:

the shape of the telescopic clamping plate is set to be in a hook shape, and a certain distance is reserved between one end of the outer side of the hook-shaped handle of the telescopic clamping plate and one end of the hook plate of the inner side.

The utility model has the following beneficial effects:

1. according to the utility model, the telescopic clamping plate and the thread limiting column are arranged at first, so that the outer layer pipe can be pulled outwards through the tension spring of the telescopic clamping plate which slides towards two sides, the hook plate of the telescopic clamping plate can be clamped on the inner wall of the connecting groove of the inner layer pipe, then the thread limiting column which rotates the inner wall of the fixing block is inserted into the slot of the outer diameter inner wall of the outer layer pipe for fixing, the inner layer pipe is convenient to install and detach, the inner layer pipe can be taken out for recovery even if the outer wall of the outer layer pipe is damaged, the material waste is prevented, the friction between the outer wall of the pipe and the ground or the mechanical contact is prevented, the outer wall surface of the pipe is prevented from being damaged by the polyethylene wear-resistant layer, the rigidity and the hardness of the inner layer pipe and the outer layer pipe are improved, deformation and bending are not easy to occur due to external force, the polyurethane heat insulation layer is arranged, the liquid heat conveyed by the inner wall of the pipe cannot be easily lost, and the inner wall surface of the pipe cannot be easily corroded when the high-corrosion-resistant anti-corrosion layer is arranged, and the high-corrosion-resistant chemical liquid is transmitted by the inner wall of the pipe is prevented, and the service life of the pipe is prolonged.

Drawings

FIG. 1 is a perspective view of a corrosion resistant double wall corrugated pipe in accordance with the present utility model;

FIG. 2 is a cross-sectional view of an outer layer of a corrosion resistant double wall corrugated pipe in accordance with the present utility model;

FIG. 3 is a cross-sectional view of an inner tube and an outer tube of a corrosion resistant double wall corrugated tube according to the present utility model.

Legend description:

1. an inner layer tube; 2. a thread limit column; 3. a retractable clamping plate; 4. an outer layer tube; 5. arc-shaped corrugation; 6. a fixed block; 7. a tension spring; 8. a connecting groove; 9. a polyethylene wear layer; 10. a polypropylene impact layer; 11. a polyurethane heat insulation layer; 12. and a high temperature resistant and corrosion resistant layer.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a corrosion-resistant double-walled bellows, including inlayer pipe 1, inlayer pipe 1 outer wall is provided with inlayer pipe 4, outer 4 outer wall fixedly connected with of inlayer pipe is a plurality of neatly arranged arc ripple 5, arc ripple 5 can increase the pliability and the ductility of pipeline, because when external force acts on the pipeline, the ripple structure can absorb and slow the impact and the extrusion of external force to the pipeline through elastic deformation, the equal sliding connection of both ends external diameter four sides has flexible cardboard 3 around the inlayer pipe 4, both ends external diameter four sides all are provided with spread groove 8 around the inlayer pipe 1, the shape of flexible cardboard 3 inboard one end agrees with the shape of spread groove 8, flexible cardboard 3 and spread groove 8 make up and conveniently install inlayer pipe 1 at inlayer pipe 4 inner wall together, inlayer pipe 1 external diameter is closely with outer 4 outer wall surface, be convenient for inlayer pipe 1 and outer 4 are connected closely, inlayer pipe 1 and outer 4 all set up to polyethylene wearing layer 9, make pipeline outer wall surface damage with ground or mechanical contact's friction, polyethylene wearing layer 9 inboard one end fixedly connected with easily has polypropylene layer 10, make inlayer pipe 1 and outer pipe 4 receive rigidity and the hardness of buckling, the shock resistance is not born.

Further explaining, the inboard one end fixedly connected with polyurethane insulating layer 11 of polypropylene impact resistance layer 10 for the liquid heat that the pipeline inner wall carried can not scatter easily, polyurethane insulating layer 11 inboard one end fixedly connected with high temperature resistant anticorrosion layer 12, when making pipeline inner wall transmission high corrosivity chemical liquid, the inner wall surface can not corrode easily, improve pipeline life, the inboard one end of flexible cardboard 3 corresponds outer tube 4 one side all fixedly connected with extension spring 7, the inboard one end of extension spring 7 is all fixedly connected at outer tube 4 inner wall, flexible cardboard 3 outer wall is all fixedly connected with fixed block 6 in opposite directions of one end both sides, the inboard one end of fixed block 6 all is closely with outer tube 4 external diameter surface, fixed block 6 inner wall all threaded connection has screw thread spacing post 2 and runs through both sides, insert the slot of outer tube 4 external diameter inner wall through the screw thread spacing post 2 of rotating fixed block 6 inner wall, both ends external diameter all is provided with the jack around the outer tube 4, the shape of flexible cardboard 3 is in agreement with jack shape in the shape of the relative one end outer wall of screw thread spacing post 2, the shape of flexible cardboard 3 sets up to the hook-shaped, the shape between flexible cardboard 3 outside one end and the inboard one end hook plate all has certain distance.

Working principle: when the inner tube 1 is installed, firstly, one side of the inner tube 1 passes through the inner wall of the outer tube 4, the position of the connecting groove 8 is combined with the hook plate of the telescopic clamping plate 3, then the telescopic clamping plate 3 at the other side is slid to stretch the tension spring 7, so that the hook plate of the telescopic clamping plate 3 is pulled outwards, the hook plate can be clamped on the inner wall of the connecting groove 8 at the other side of the inner tube 1, then the thread limiting column 2 of the inner wall of the fixed block 6 is inserted into the slot of the outer diameter inner wall of the outer tube 4 to be fixed, and therefore the inner tube 1 can be conveniently installed and disassembled, and even if the outer wall of the outer tube 4 is damaged, the inner tube 1 can be taken out to be recovered, and material waste is prevented.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. Corrosion-resistant double-wall corrugated pipe comprises an inner layer pipe (1), and is characterized in that: the utility model discloses a flexible pipe, including inlayer pipe (1) outer wall, inlayer pipe (4) outer wall fixedly connected with arc ripple (5) that a plurality of was neatly arranged, both ends external diameter four sides all sliding connection has flexible cardboard (3) around inlayer pipe (4), both ends external diameter four sides all are provided with spread groove (8) around inlayer pipe (1), the shape of the inboard one end of flexible cardboard (3) agrees with the shape of spread groove (8), inlayer pipe (1) external diameter and outer pipe (4) outer wall surface are closely, inlayer pipe (1) and outer pipe (4) are all set up to polyethylene wearing layer (9) outermost, the inboard one end fixedly connected with polypropylene anti-impact layer (10) of polyethylene wearing layer (9).

2. A corrosion resistant double wall corrugated pipe according to claim 1, wherein: one end of the inner side of the polypropylene impact-resistant layer (10) is fixedly connected with a polyurethane heat-insulating layer (11).

3. A corrosion resistant double wall corrugated pipe according to claim 2, wherein: one end of the inner side of the polyurethane heat insulation layer (11) is fixedly connected with a high-temperature-resistant anti-corrosion layer (12).

4. A corrosion resistant double wall corrugated pipe according to claim 1, wherein: the inner side end of the telescopic clamping plate (3) is fixedly connected with a tension spring (7) corresponding to one side of the outer layer pipe (4), and the inner side end of the tension spring (7) is fixedly connected to the inner wall of the outer layer pipe (4).

5. A corrosion resistant double wall corrugated pipe according to claim 1, wherein: the outer wall of the telescopic clamping plate (3) is fixedly connected with a fixing block (6) on two sides of one end opposite to the other end, and one end of the inner side of the fixing block (6) is tightly attached to the outer diameter surface of the outer tube (4).

6. A corrosion resistant double wall corrugated pipe according to claim 5, wherein: the inner wall of the fixed block (6) is connected with a threaded limit column (2) in a threaded manner and penetrates through the two sides.

7. A corrosion resistant double wall corrugated pipe according to claim 6, wherein: the outer diameters of the front end and the rear end of the outer tube (4) are respectively provided with a jack corresponding to the two sides of the telescopic clamping plate (3), and the shape of the outer wall of the opposite end of the threaded limiting column (2) is matched with the shape of the jacks.

8. A corrosion resistant double wall corrugated pipe according to claim 7, wherein: the shape of the telescopic clamping plate (3) is in a hook shape, and a certain distance is reserved between one end of the outer side of the hook-shaped handle of the telescopic clamping plate (3) and one end of the hook plate at the inner side.