CN213027396U

CN213027396U - Novel crest double-wall pipe

Info

Publication number: CN213027396U
Application number: CN202022068952.0U
Authority: CN
Inventors: 鲁姣利
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-04-20
Anticipated expiration: 2030-09-18

Abstract

The utility model belongs to the technical field of tubular product, a novel crest double-walled pipe is provided, including inner tube and outer tube, the outer tube includes a plurality of mutually independent crest bodys, the crest body is the loop body form, so that the crest body surround in the periphery wall of inner tube, and each the crest body is followed the length direction interval arrangement of inner tube in the periphery wall of inner tube, so that the periphery wall of inner tube forms the crest. This novel crest double-wall pipe's simple structure, design are more reasonable, and the consumptive material is few, weight is lighter, uses also more in a flexible way, and compressive property is good.

Description

Novel crest double-wall pipe

Technical Field

The utility model relates to the technical field of tubular product, especially, relate to a novel crest double-walled pipe.

Background

At present, plastic pipes: such as HDPE (high-density polyethylene) pipes, MPP (modified Polypropylene) pipes and PVC (polyvinyl chloride) pipes, the pipe has the advantages of light weight, good electrical insulation performance, corrosion resistance, cold resistance, good chemical stability and the like, and is widely applied to buried power cable protective sleeves.

Most of traditional buried power cable protective sleeves are single-wall pipes, and the pressure resistance of the single-wall pipes is poor, so that the single-wall pipes buried underground are prone to deformation caused by external force, and normal use of the single-wall pipes is affected. Therefore, in recent years, various double-wall pipes have appeared on the market. The double-wall pipe comprises an inner pipe and an outer pipe, wherein the outer pipe is a corrugated outer pipe coated on the outer surface of the inner pipe; the outer pipe is required to be coated on the outer surface of the whole inner pipe, so that the processing technology of the double-wall pipe is complex, and the outer pipe is also required to be a corrugated outer pipe with wave crests and wave troughs, so that the material consumption of the outer pipe is large, and the weight of the double-wall pipe is increased; moreover, after the outer pipe is processed and formed, the distance between two adjacent wave crests on the outer pipe is fixed, so that the distance between the two adjacent wave crests cannot be adjusted according to actual use conditions, and the use of the double-wall pipe is further limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a novel crest double-walled pipe, this novel crest double-walled pipe's simple structure, design are more reasonable, and the consumptive material is few, weight is lighter, uses also more in a flexible way, and compressive property is good.

The utility model discloses a novel crest double-wall pipe, including inner tube and outer tube, the outer tube includes a plurality of mutually independent crest bodys, the crest body is the loop body form, so that the crest body surround in the periphery wall of inner tube, and each the crest body is followed the length direction interval of inner tube arrange in the periphery wall of inner tube, so that the periphery wall of inner tube forms the crest.

Preferably, the inner tube has a hollow cylindrical shape.

Preferably, the wave crest pipe body is in a circular ring shape, and the interior of the wave crest pipe body is of a hollow structure, so that the longitudinal section of the wave crest pipe body is in a solid circular ring shape.

Preferably, the diameter of the inner peripheral wall of the outer tube is equal to the diameter of the outer peripheral wall of the inner tube.

Preferably, a plurality of the peak tubes are arranged at equal intervals on the outer peripheral wall of the inner tube.

Preferably, the plurality of peak tubes are unevenly arranged on the outer peripheral wall of the inner tube.

Preferably, the inner pipe is a pipe made of modified polypropylene.

Preferably, the wave crest pipe body is a pipe made of modified polypropylene.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

the novel wave crest double-wall pipe comprises an inner pipe and an outer pipe, the structure is simple, and because the outer pipe comprises a plurality of mutually independent wave crest pipes, and each wave crest pipe is arranged at the peripheral wall of the inner pipe along the length direction of the inner pipe at intervals, the outer pipe only forms wave crests at the peripheral wall of the inner pipe, and the peripheral wall of the inner pipe between two adjacent wave crest pipes is a wave trough, compared with the prior corrugated outer pipe with wave crests and wave troughs, the outer pipe has small material consumption, can reduce the weight of the outer pipe, further reduce the weight of the whole novel wave crest double-wall pipe, is convenient to carry, and because the outer pipe comprises a plurality of mutually independent wave crest pipes, when the external pressure required to be born by parts (such as the middle section) of the novel wave crest double-wall pipe can be increased, so that the distance between two adjacent wave crest pipes of the middle section is reduced, in order to satisfy the resistance to compression demand of this interlude, and then this novel crest double-walled pipe's local compressive property with carry out nimble adjustment according to the in-service use demand, this novel crest double-walled pipe's design is more reasonable, adaptability is stronger, and compressive property is good.

Drawings

Fig. 1 is a schematic structural view of the novel wave crest double-wall pipe of the present invention.

Fig. 2 is a cross-sectional view of the novel wave crest double-wall pipe of the present invention along the axial direction of the inner pipe.

The reference numbers illustrate: 1, an inner tube; 2, an outer tube; 21 wave crest pipe body; 211 hollow structure.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The novel wave crest double-wall pipe of the embodiment, referring to fig. 1-2, comprises an inner pipe 1 and an outer pipe 2. Preferably, the inner tube 1 is in a hollow cylindrical shape, the hollow cylindrical inner tube 1 is more convenient to machine and form and is suitable for mass production, and moreover, the inner peripheral wall of the hollow cylindrical inner tube 1 is smooth and has no obstacles such as corners and the like, so that the inner tube can conveniently and rapidly penetrate through a plurality of cables, and further plays a role in protecting the cables.

Wherein, the outer tube 2 comprises a plurality of mutually independent wave crest tube bodies 21, each wave crest tube body 21 surrounds the periphery wall of the inner tube 1, and each wave crest tube body 21 is arranged at intervals on the periphery wall of the inner tube 1 along the length direction of the inner tube 1, thereby forming wave crests on the periphery wall of the inner tube 1. So, outer tube 2 only forms the crest at the periphery wall of inner tube 1, and 1 periphery wall of inner tube between two adjacent crest bodys 21 then is the trough, so, compare the corrugated outer tube that has crest and trough concurrently now, this outer tube 2 consumptive material is little, can alleviate the weight of outer tube 2, and then alleviates the weight of whole novel crest double-walled pipe, the transport of being convenient for.

Wherein, a plurality of mutually independent crest body 21 equidistant, evenly arrange in the periphery wall of inner tube 1. Or a plurality of mutually independent wave crest tube bodies 21 are unevenly arranged on the outer peripheral wall of the inner tube 1; for example, a single wave crest pipe body 21 can be sold separately, when the external pressure to be born by a part (such as a middle section) of the novel wave crest double-wall pipe is large, the single wave crest pipe body 21 can be connected to the outer side wall of the inner pipe 1 at the middle section of the novel wave crest double-wall pipe by adopting a connection mode such as a structural adhesive layer or hot melting to increase the number of the wave crest pipe bodies 21 at the middle section of the novel wave crest double-wall pipe, so that the distance between two adjacent wave crest pipe bodies 21 at the middle section is reduced, thus the number of the wave crest pipe bodies 21 at the middle section of the novel wave crest double-wall pipe is large, the number of the wave crest pipe bodies 21 at other parts is relatively small, the compression resistance requirement at the middle section is met, the local compression resistance of the novel wave crest double-wall pipe can be flexibly adjusted according to the actual use requirement, the novel wave crest, and the compression resistance is good.

The shape of the peak tube 21 varies with the shape of the inner tube 1 (for example, if the inner tube 1 is a square tube, the peak tube 21 is a square ring) to ensure that the peak tube 21 can surround the outer circumferential wall of the inner tube 1. Preferably, the wave crest tube body 21 is a circular ring body, the shape is regular, the processing and forming are convenient, the inside of the wave crest tube body 21 is a hollow structure 211, so that the longitudinal section of the wave crest tube body 21 is a solid circular ring shape (wherein, the longitudinal direction of the wave crest tube body 21 refers to the direction parallel to the axis of the inner tube 1), the hollow structure 211 plays a role in buffering external pressure, and the pressure resistance of the wave crest tube body 21 can be enhanced. When this novel crest double-walled pipe receives external pressure, outside pressure can receive the lateral wall of crest body 21, the impact of inside wall and hollow structure 211, so, crest body 21 can strike basically and consume this external pressure, moreover, compare current ripple outer tube, this longitudinal section is the area of contact less of solid annular crest body 21 and 1 periphery wall of inner tube, can not pass to inner tube 1 with external pressure fast, so, inner tube 1 can not receive external pressure's influence basically, and then can further improve this novel crest double-walled pipe's compressive property.

In order to realize the firm connection between the wave crest tube body 21 and the inner tube 1, a structural adhesive layer for bonding the wave crest tube body 21 and the inner tube 1 can be arranged between the inner peripheral wall of the wave crest tube body 21 and the outer peripheral wall of the inner tube 1; alternatively, the inner peripheral wall of the peak tube body 21 and the outer peripheral wall of the inner tube 1 may be thermally fused. Wherein, the internal perisporium diameter of outer tube 2 equals the periphery wall diameter of inner tube 1 to make outer tube 2 can stably be fixed in the periphery wall of inner tube 1, further realize the firm connection of crest body 21 and inner tube 1.

Wherein, the inner pipe 1 and the wave crest pipe body 21 are both pipes made of modified polypropylene (MPP for short). Compared with high density polyethylene (HDPE for short), the MPP pipe has the characteristics of high temperature resistance and external pressure resistance, and is rigid, good in strength and better in external pressure resistance. The pipe made of the MPP material has good insulating property; the weight is light, and the construction and the transportation are convenient; the inner wall and the outer wall are smooth, the friction force is small, and the abrasion of the outer skin of the wire and the cable can be effectively avoided when the wire and the cable are threaded; the service life is long, and the pipe is suitable for the pipe arranging pipe of the high-voltage transmission line cable above 10 KV.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

The technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. The utility model provides a novel crest double-walled pipe, a serial communication port, including inner tube and outer tube, the outer tube includes a plurality of mutually independent crest bodys, the crest body is the loop body form, so that the crest body encircle in the periphery wall of inner tube, and each the crest body is followed the length direction interval of inner tube arrange in the periphery wall of inner tube, so that the periphery wall of inner tube forms the crest.

2. A novel crest double wall pipe according to claim 1, wherein said inner pipe is in the shape of a hollow cylinder.

3. The novel wave crest double-wall pipe as claimed in claim 1, wherein the wave crest pipe body is circular ring-shaped, and the interior of the wave crest pipe body is hollow, so that the longitudinal section of the wave crest pipe body is solid circular ring-shaped.

4. A novel crest double-walled pipe as claimed in claim 1, wherein the diameter of the inner peripheral wall of said outer pipe is equal to the diameter of the outer peripheral wall of said inner pipe.

5. A novel crest double-walled tube as claimed in claim 1, wherein a plurality of said crest tubes are disposed at equal intervals on the outer peripheral wall of said inner tube.

6. A novel crest double-walled tube as claimed in claim 1, wherein a plurality of said crest tubes are unevenly disposed on the outer peripheral wall of said inner tube.

7. The novel wave crest double-wall pipe according to claim 1, wherein the inner pipe is a pipe made of modified polypropylene.

8. The novel wave crest double-wall pipe according to claim 1, wherein the wave crest pipe body is a pipe made of modified polypropylene.