CN215419525U

CN215419525U - Buried power cable protective sleeve

Info

Publication number: CN215419525U
Application number: CN202121862094.5U
Authority: CN
Inventors: 邢振魁; 桑辉
Original assignee: Hebei Gesaite Composite Material Co ltd
Current assignee: Hebei Gesaite Composite Material Co ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-04
Anticipated expiration: 2031-08-10

Abstract

The utility model belongs to the technical field of cable protection, and discloses a buried power cable protective sleeve, which comprises a BWFRP pipeline, wherein an inner connecting sleeve is arranged on the inner wall of one side of the BWFRP pipeline, and both ends of the inner wall of the inner connecting sleeve are provided with inclined surfaces, the outer diameter of the inner connecting sleeve is the same as the inner diameter of the BWFRP pipeline, the BWFRP pipe is externally provided with a positioner, the BWFRP pipe is internally provided with an inner connecting sleeve, and both ends of the inner wall of the inner connecting sleeve are provided with inclined planes, so that the inner wall of the inner connecting sleeve tank is in a form of thick middle and thin two ends, when in use, the inner wall of one end of the BWFRP pipeline is welded with the inner connecting sleeve, welding an outer connecting sleeve on the outer wall, then welding a BWFRP pipeline in addition in a gap formed between the inner connecting sleeve and the outer connecting sleeve tank, under the action of the inner connecting sleeve tank, no gap or fault is generated at the connecting position of the BWFRP pipeline.

Description

Buried power cable protective sleeve

Technical Field

The utility model belongs to the technical field of cable protection, and particularly relates to a buried power cable protective sleeve.

Background

The cable is a device for transmitting electric energy or signals, and generally comprises a plurality of or a plurality of groups of conducting wires, some cables are buried underground in the using process, and in some areas, the cables buried underground are not safe, so that the cables buried underground need to be protected by using a protective sleeve, and the BWFRP pipeline can effectively protect the cables, and has better using effect compared with common plastic pipes, glass fiber reinforced plastic pipes and the like.

The BWFRP pipe cannot be directly manufactured according to the length of the cable, generally, after a certain length of BWFRP pipe is manufactured and a part of the connecting sleeve is melted, the connecting sleeve is melted and then is melted and fixed with the BWFRP pipe, but the welding process cannot ensure that two sections of BWFRP pipes are completely contacted, a gap may exist in the middle, when the cable is inserted, the insertion work may be hindered due to the existence of the gap, and after the BWFRP pipe is installed, a tool for preventing extrusion needs to be used outside the BWFRP pipe to prevent the pipes from extruding each other, while the traditional protection tools are easily dislocated to affect the pipes.

Disclosure of Invention

The utility model aims to provide an underground power cable protective sleeve, which aims to solve the problems that gaps generated by welding when a cable is inserted into the existing protective sleeve possibly obstruct an insertion pipe, tools for preventing extrusion cannot be well fixed, and dislocation is easy to occur.

In order to achieve the purpose, the utility model provides the following technical scheme: the buried power cable protective sleeve comprises a BWFRP pipeline, wherein an inner connecting sleeve is arranged on the inner wall of one side of the BWFRP pipeline, inclined planes are arranged at two ends of the inner wall of the inner connecting sleeve, the outer diameter of the inner connecting sleeve is the same as the inner diameter of the BWFRP pipeline, and a positioner is arranged outside the BWFRP pipeline.

Preferably, the BWFRP pipeline comprises a first cross-woven layer, a ring-shaped longitudinal-woven layer and a second cross-woven layer, and an external connection sleeve is installed outside the BWFRP pipeline, and the ring-shaped longitudinal-woven layer is located between the first cross-woven layer and the second cross-woven layer.

Preferably, an inner through hole is formed in the outer connecting sleeve, and the diameter of the inner through hole is the same as the outer diameter of the BWFRP pipeline.

Preferably, the locator includes block groove, holding ring and block, and the locator is square block structure.

Preferably, the clamping groove and the clamping block are both located on the surface wall of the positioner, an inner hole is formed in the inner wall of the positioner, and the clamping groove is matched with the clamping block.

Preferably, the diameter of the inner hole is the same as the outer diameter of the BWFRP pipe, and the diameter of the inner hole is smaller than the outer diameter of the outer connecting sleeve.

Compared with the prior art, the utility model has the following beneficial effects:

(1) when the BWFRP pipeline connecting device is used, the inner wall of one end of the BWFRP pipeline is welded with the inner connecting sleeve, the outer connecting sleeve is welded on the outer wall, then the BWFRP pipeline is additionally welded in a gap formed between the inner connecting sleeve and the outer connecting sleeve, and under the action of the inner connecting sleeve, the connecting position of the BWFRP pipeline cannot generate the condition of a gap or a fault.

(2) The clamping blocks and the clamping grooves are respectively arranged on the two sides of the positioning ring, and when the clamping ring is used, the clamping blocks are clamped into the clamping grooves, so that different positioners are mutually fixed, and the condition that the positioners are dislocated and then press a BWFRP pipeline is avoided.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a perspective view of the outer joint sleeve of the present invention;

FIG. 3 is an external view of the present invention;

FIG. 4 is a side view of the retainer of the present invention;

in the figure: 1. a first cross braiding layer; 2. circularly and longitudinally weaving layers; 3. a second cross braiding layer; 4. an outer connecting sleeve; 5. an inner connecting sleeve; 6. BWFRP pipe; 7. an inner through hole; 8. an inclined surface; 9. a positioner; 10. a clamping groove; 11. a positioning ring; 12. a clamping block; 13. an inner bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides the following technical solutions: a buried power cable sheath tube comprises a BWFRP (fiber reinforced plastic) pipeline 6, wherein an inner connecting sleeve 5 is arranged on the inner wall of one side of the BWFRP pipeline 6, inclined planes 8 are arranged at two ends of the inner wall of the inner connecting sleeve 5, the outer diameter of the inner connecting sleeve 5 is the same as the inner diameter of the BWFRP pipeline 6, the inner wall of the inner connecting sleeve 5 is in a form that two ends are thin and the middle is thick, the cable can not be blocked when being inserted, the outer diameter of the inner connecting sleeve 5 is the same as the inner diameter of the BWFRP pipeline 6, a positioner 9 is arranged outside the BWFRP pipeline 6, the positioner 9 is only suitable for the condition of a plurality of groups of BWFRP pipelines 6, and the positioner 9 can not be arranged on a single BWFRP pipeline 6.

Furthermore, the BWFRP pipeline 6 comprises a first cross-woven layer 1, a ring longitudinal-woven layer 2 and a second cross-woven layer 3, an outer connecting sleeve 4 is arranged outside the BWFRP pipeline 6, the ring longitudinal-woven layer 2 is positioned between the first cross-woven layer 1 and the second cross-woven layer 3, the BWFRP pipeline 6 is mainly produced by taking alkali-free glass fiber and resin as raw materials and adopting a continuous fiber on-line complete weaving, winding, pultrusion and integrated molding process.

Furthermore, an inner through hole 7 is formed inside the outer connecting sleeve 4, the diameter of the inner through hole 7 is the same as the outer diameter of the BWFRP pipeline 6, the outer connecting sleeve 4 has a certain thickness, and the connecting mode of the outer connecting sleeve 4 and the BWFRP pipeline 6 mainly adopts a welding mode of hot melting, cooling and bonding together.

Specifically, the positioner 9 includes a clamping groove 10, a positioning ring 11 and a clamping block 12, and the positioner 9 is in a square block structure, and when the square block structure is used, the smooth surface of the positioner 9 is used as a supporting point, so that different BWFRP pipelines 6 are kept at a certain distance without mutual extrusion.

It is worth to be noted that, the engaging groove 10 and the engaging block 12 are both located on the surface wall of the locator 9, an inner hole 13 is formed on the inner wall of the locator 9, the engaging groove 10 is matched with the engaging block 12, the locator 9 can be made of plastic material and has certain toughness, and can still be restored after being extruded to a certain degree, and the engaging groove 10 and the engaging block 12 can both be arranged in an arrow shape and cannot be separated after being engaged.

Further, the diameter of the inner hole 13 is the same as the outer diameter of the BWFRP pipe 6, and the diameter of the inner hole 13 is smaller than the outer diameter of the outer joint sleeve 4, so as to prevent the retainer 9 from passing through the outer joint sleeve 4 during the position adjustment process, and the position of the retainer 9 is limited by the outer joint sleeve 4, so that it can only move on the surface wall of the BWFRP pipe 6.

The working principle and the using process of the utility model are as follows: when the utility model is used, a locator 9 is sleeved outside the BWFRP pipe 6, the outer wall of the inner connecting sleeve 5 is welded on the inner wall of one end of the BWFRP pipe 6, the outer connecting sleeve 4 is welded on the outer wall, the other BWFRP pipe 6 is taken down and welded in the gap between the outer connecting sleeve 4 and the inner connecting sleeve 5, because of the inclined surfaces 8 at both ends of the inner wall of the inner connecting sleeve 5, the joint between the two BWFRP pipes 6 does not fall, and because the inner connecting sleeve 5 is inside the BWFRP pipes 6, therefore, the gap generated when the BWFRP pipe 6 is connected does not appear on the inner wall of the inner connecting sleeve 5, the efficiency is not affected by the gap or fall when the cable is inserted, when a plurality of groups of BWFRP pipes 6 are used, the engaging blocks 12 on the side walls of different locators 9 are clamped into the engaging grooves 10, the positioning rings 11 are fixed with each other, so that the situation of dislocation can not occur, and the compression of the BWFRP pipeline 6 caused by the dislocation of the positioner 9 is avoided.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a buried power cable protective sleeve, includes BWFRP pipeline (6), its characterized in that: an inner connecting sleeve (5) is installed on the inner wall of one side of the BWFRP pipeline (6), inclined planes (8) are arranged at two ends of the inner wall of the inner connecting sleeve (5), the outer diameter of the inner connecting sleeve (5) is the same as the inner diameter of the BWFRP pipeline (6), and a positioner (9) is installed outside the BWFRP pipeline (6).

2. A buried power cable sheathing tube, as claimed in claim 1, wherein: the BWFRP pipeline (6) comprises a first crossed braiding layer (1), a ring longitudinal braiding layer (2) and a second crossed braiding layer (3), an outer connecting sleeve (4) is mounted outside the BWFRP pipeline (6), and the ring longitudinal braiding layer (2) is located between the first crossed braiding layer (1) and the second crossed braiding layer (3).

3. A buried power cable sheathing tube, as claimed in claim 2, wherein: an inner through hole (7) is formed in the outer connecting sleeve (4), and the diameter of the inner through hole (7) is the same as the outer diameter of the BWFRP pipeline (6).

4. A buried power cable sheathing tube, according to claim 3, wherein: the locator (9) comprises a clamping groove (10), a positioning ring (11) and a clamping block (12), and the locator (9) is of a square block structure.

5. A buried power cable sheathing tube, according to claim 4, wherein: the clamping groove (10) and the clamping block (12) are both located on the surface wall of the positioner (9), an inner hole (13) is formed in the inner wall of the positioner (9), and the clamping groove (10) is matched with the clamping block (12).

6. A buried power cable sheathing tube, according to claim 5, wherein: the diameter of the inner hole (13) is the same as the outer diameter of the BWFRP pipeline (6), and the diameter of the inner hole (13) is smaller than the outer diameter of the outer connecting sleeve (4).