CN212258316U - PVC-C axial hollow wall electric power sleeve - Google Patents

Abstract

The utility model discloses a PVC-C axial hollow wall electric power casing pipe, which belongs to the technical field of electric power casing pipes, and comprises a plurality of PVC-C pipe bodies with front and back ends assembled in sequence, wherein the inner side wall of the PVC-C pipe body close to the front end is provided with an open type installation notch, the port part of the PVC-C pipe body close to the back end is fixedly provided with an installation bulge, the installation notch is matched with the installation bulge for use, the connection part between a plurality of PVC-C pipe bodies is fixedly connected through a connecting component, the PVC-C pipe body mainly comprises an outer pipe layer and an inner pipe layer, and the outer pipe layer and the inner pipe layer are fixedly connected through a plurality of axial pieces; the protection effect can be realized to the inside cable of PVC-C body, prevents that PVC-C body pressurized from taking place the condition such as damage, simultaneously under the effect of axial component and elastic ring, can eliminate the effort that the part was exerted pressure on the outer tube layer to reach better resistance to compression effect, mechanical strength is higher, and the result of use is better, can resist the destruction that external heavy load and basis subside and arouse, ensures the normal transmission of electricity operation of cable.

Description

PVC-C axial hollow wall electric power sleeve

Technical Field

The utility model belongs to the technical field of the electric power sleeve pipe, concretely relates to cavity wall electric power sleeve pipe in PVC-C axial.

Background

The power sleeve is also called as a protection tube and a conduit, is a pipeline for protecting wires and cable wiring in electrical installation, allows the wires and cables to penetrate and be replaced, the cable sleeve is a novel sleeve material which is popularized and used in power engineering, along with the rapid development of power cable buried laying engineering, higher requirements are put forward for the cable sleeve, the cable sleeve is suitable for the fields of telecommunication, power engineering, traffic, city construction and the like, two types of sleeves are generally adopted, one type is a steel protection tube, the steel protection tube comprises a thin-wall tube and a thick-wall tube, and is distinguished by galvanizing and non-galvanizing, the other type is a plastic tube, and the plastic tube is generally made of polyvinyl chloride plastic or U-PVC.

At present, current power sleeve pipe generally only adopts single-layer construction, especially the power sleeve pipe that the plastics material was made, self intensity is lower, receive the easy phenomenons such as deformation or breakage that produce after external extrusion, the cable or the electric wire of power sleeve pipe inside expose in the time of, thereby damage cable or electric wire easily, also influence the power consumption when causing economic loss, the junction connection effect between a plurality of power sleeve pipes is relatively poor simultaneously, the seepage condition appears easily, lead to water liquid to get into in the power sleeve pipe, thereby influence the use of cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a PVC-C axial cavity wall electric power sleeve pipe to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a PVC-C axial hollow wall power casing comprises a plurality of PVC-C pipe bodies, wherein the front ends and the rear ends of the PVC-C pipe bodies are sequentially assembled, an open type installation notch is formed in the inner side wall, close to the front ends, of each PVC-C pipe body, an installation bulge is fixedly arranged at the port, close to the rear ends, of each PVC-C pipe body, the installation notches and the installation bulges are matched for use, the joints among the plurality of PVC-C pipe bodies are fixedly connected through a connecting component, each PVC-C pipe body mainly comprises an outer pipe layer and an inner pipe layer, the outer pipe layer and the inner pipe layer are fixedly connected through a plurality of axial pieces, the plurality of axial pieces are annularly arranged between the outer pipe layer and the inner pipe layer, cavities are formed between every two axial pieces in sequence, elastic rings are arranged in the cavities, and the elastic rings are also fixedly connected between the outer.

As a preferred embodiment, the connecting assembly comprises fixing rings respectively fixed on the outer side walls of the joints of the two PVC-C pipes, wherein the two fixing rings are provided with annular grooves, the outer side wall of each fixing ring is sleeved with two fixing pieces, the inner side wall of each fixing piece is fixedly provided with two inserting rings, the inserting rings are matched with the annular grooves for use, the edge convex parts of the two fixing pieces are provided with a plurality of screw holes, and the screw holes are connected with bolts through internal threads.

As a preferred embodiment, a sealing ring is installed in the annular groove, and the sealing ring is made of rubber.

As a preferred embodiment, the axial member mainly comprises an axial rod and two axial support arms extending out of two ends of the axial rod, and the two axial support arms at two ends of the axial rod and the axial rod are both in a "Y" shape.

In a preferred embodiment, the outer side wall of the PVC-C pipe body is coated with an insulating layer, and the outer side wall of the insulating layer is coated with a waterproof and anticorrosive layer.

In a preferred embodiment, the material of the insulating layer is specifically DM insulating paper, and the material of the waterproof and anticorrosive layer is specifically vinyl ester anticorrosive and waterproof paint.

Compared with the prior art, the utility model provides a PVC-C axial cavity wall electric power sleeve pipe includes following beneficial effect at least:

(1) through the design of a double-layer structure, when the PVC-C pipe body is subjected to the external extrusion effect, the outer pipe layer deforms along with the extrusion, the inner pipe layer still keeps in a complete state, the protection effect on a cable in the PVC-C pipe body can be realized, the PVC-C pipe body is prevented from being damaged due to the compression, and the like, and meanwhile, under the action of the axial piece and the elastic ring, the acting force exerted on the outer pipe layer by part of pressure can be eliminated, so that a better compression-resistant effect is achieved, the mechanical strength is higher, the using effect is better, the damage caused by external stress and foundation settlement can be resisted, and the normal power transmission operation of the cable is ensured;

(2) through coupling assembling's effect, two PVC-C body are connected the back, and insert the ring smoothly in two mountings and the cooperation of the annular groove on the solid fixed ring uses, and the rethread bolt is connected two mountings, connects on the one hand firmly, effectively avoids the phenomenon of droing, and on the other hand can reach outside sealed effect under the effect of sealing washer, avoids the water liquid seepage, ensures the operation of cable.

Drawings

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

FIG. 2 is a schematic structural view of the fixing member, the insert ring and the bolt of the present invention;

fig. 3 is a schematic structural view of the fixing ring of the present invention;

FIG. 4 is a schematic structural view of a cross section of a double-layer structure of the PVC-C pipe body of the present invention;

FIG. 5 is a schematic structural view of the cross section of the outer sidewall of the PVC-C pipe body of the present invention;

fig. 6 is a schematic structural view of the axial member of the present invention.

In the figure: 1. a PVC-C tube body; 101. an outer tube layer; 102. an inner tube layer; 2. installing a notch; 3. mounting a boss; 4. a connecting assembly 401 and a fixing ring; 402. an annular groove; 403. a seal ring; 404. a fixing member; 405. an insert ring; 406. a screw hole; 407. a bolt; 5. an axial member; 501. an axial rod; 502. an axial support arm; 6. an elastic ring; 7. a cavity; 8. an insulating layer; 9. a waterproof and anticorrosive layer.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-6, the present invention provides a PVC-C axial hollow wall power bushing, which comprises a plurality of PVC-C tubes 1 assembled in sequence at their front and rear ends, wherein the inner sidewall of the PVC-C tube 1 near the front end is provided with an open mounting notch 2, the port of the PVC-C tube 1 near the rear end is fixedly provided with a mounting protrusion 3, the mounting notch 2 is used in cooperation with the mounting protrusion 3, the joint between the plurality of PVC-C tubes 1 is fixedly connected by a connecting assembly 4, the connecting assembly 4 comprises two fixing rings 401 respectively fixed on the outer sidewalls of the joint between the two PVC-C tubes 1, and the two fixing rings 401 are both provided with an annular groove 402, the outer sidewall of the fixing ring 401 is sleeved with two fixing members 404, and the inner sidewall of the fixing member 404 is fixedly provided with two insert rings 405, and the insert rings 405 are used in cooperation with the annular groove 402, a plurality of screw holes 406 are formed on the edge convex parts of the two fixing pieces 404, and bolts 407 are connected to the screw holes 406 through internal threads (see fig. 1, 2 and 3); through coupling assembling 4's effect, two PVC-C bodys 1 connect the back, with the insert ring 405 in two mounting 404 smoothly with solid fixed ring 401 on the annular groove 402 cooperation use, rethread bolt 407 is connected two mounting 404, connect firmly, effectively avoid the obscission.

A sealing ring 403 is arranged in the annular groove 402, and the sealing ring 403 is made of rubber (see fig. 3); under the effect of sealing washer 403, can reach outside sealed effect, avoid the water liquid seepage, ensure the operation of cable.

The PVC-C pipe body 1 mainly comprises an outer pipe layer 101 and an inner pipe layer 102, the outer pipe layer 101 and the inner pipe layer 102 are fixedly connected through a plurality of axial members 5, each axial member 5 mainly comprises an axial rod 501 and two axial support arms 502 extending out of two ends of the axial rod 501, and the two axial support arms 502 at two ends of the axial rod 501 and the axial rod 501 are in a Y-shaped structure (see FIGS. 4 and 6); under the effect of axial member 5 and elastic ring 6, can eliminate the effort of partial pressure application on outer tube layer 101 to reach better resistance to compression effect, mechanical strength is higher, and the result of use is better, can resist the destruction that external heavy load and foundation subside arouse, ensures the normal transmission of electricity operation of cable.

And a plurality of axial members 5 are arranged between outer pipe layer 101 and inner pipe layer 102 in an annular manner, and a plurality of axial members 5 form a cavity 7 between each two in turn, and an elastic ring 6 is arranged in the cavity 7, and the elastic ring 6 is also fixedly connected between outer pipe layer 101 and inner pipe layer 102.

The outer side wall of the PVC-C pipe body 1 is coated with an insulating layer 8, and the outer side wall of the insulating layer 8 is coated with a waterproof and anticorrosive layer 9 (see figure 5); the PVC-C pipe body 1 is ensured to have insulating, waterproof and anticorrosive effects, and the use safety and the service life of the PVC-C pipe body 1 are improved.

The insulating layer 8 is made of DM insulating paper, and the waterproof and anticorrosive layer 9 is made of vinyl ester anticorrosive and waterproof paint (see FIG. 5); the composite insulating material product is formed by coating a polyester film with an F-level adhesive and bonding a polyester fiber non-woven fabric on one surface, has good mechanical strength, dielectric property and higher heat resistance, and is a vinyl ester anticorrosive waterproof coating material-level two-component water emulsion type elastic coating which is mainly used for external waterproof anticorrosive protection of underground pipelines and the like.

When in use, through the design of the double-layer structure, when the PVC-C pipe body 1 is subjected to the external extrusion effect, the outer pipe layer 101 deforms along with the extrusion, the inner pipe layer 102 still keeps the complete state, the protection effect on the cable in the PVC-C pipe body 1 can be realized, the PVC-C pipe body 1 is prevented from being damaged under the compression, and the like, meanwhile, under the action of the axial piece 5 and the elastic ring 6, the acting force exerted on the outer pipe layer 101 by part of pressure can be eliminated, so that the better compression resistance effect is achieved, the mechanical strength is higher, the use effect is better, the damage caused by the external stress and the foundation settlement can be resisted, and through the effect of the connecting component 4, after the two PVC-C pipe bodies 1 are connected, the inserting rings 405 in the two fixing pieces 404 are smoothly matched with the annular grooves 402 on the fixing ring 401 for use, and then the two fixing pieces 404 are connected, on the one hand, connect firmly, effectively avoid the obscission, on the other hand can reach outside sealed effect under the effect of sealing washer 403, avoids the water liquid seepage, ensures the operation of cable, under the effect of insulating layer 8 and waterproof anticorrosive coating 9, ensures that PVC-C body 1 possesses insulating, waterproof and anticorrosive effect, improves PVC-C body 1's safety in utilization and life.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a PVC-C axial cavity wall electric power sleeve pipe, includes PVC-C body (1) that a plurality of front and back ends assembled in proper order, its characterized in that: the inner side wall of the PVC-C pipe body (1) close to the front end is provided with an open type mounting notch (2), the port of the PVC-C pipe body (1) close to the rear end is fixedly provided with an installation bulge (3), the mounting notches (2) are matched with the mounting bulges (3) for use, the joints among the plurality of PVC-C pipe bodies (1) are fixedly connected through a connecting component (4), the PVC-C pipe body (1) mainly comprises an outer pipe layer (101) and an inner pipe layer (102), and the outer pipe layer (101) and the inner pipe layer (102) are fixedly connected through a plurality of axial members (5), and a plurality of axial members (5) are arranged in an annular array between the outer pipe layer (101) and the inner pipe layer (102), and a plurality of axial pieces (5) are arranged in pairs to form a cavity (7), an elastic ring (6) is arranged in the cavity (7), the elastic ring (6) is also fixedly connected between the outer pipe layer (101) and the inner pipe layer (102).

2. The PVC-C axial hollow wall power bushing of claim 1, wherein: coupling assembling (4) are including setting firmly solid fixed ring (401) in two PVC-C body (1) junction lateral walls respectively, and all seted up annular groove (402) on two solid fixed ring (401), the cover is equipped with two mounting (404) on the lateral wall of solid fixed ring (401), and set firmly two insert ring (405) on the inside wall of mounting (404), and insert ring (405) and annular groove (402) cooperation use, and all seted up a plurality of screws (406) on the edge convex part of two mounting (404), and screw (406) female connection has bolt (407).

3. The PVC-C axial hollow wall power bushing of claim 2, wherein: and a sealing ring (403) is arranged in the annular groove (402), and the sealing ring (403) is made of rubber.

4. The PVC-C axial hollow wall power bushing of claim 1, wherein: the axial component (5) mainly comprises an axial rod (501) and two axial support arms (502) extending out of two ends of the axial rod (501), and the two axial support arms (502) at two ends of the axial rod (501) and the axial rod (501) are both Y-shaped.

5. The PVC-C axial hollow wall power bushing of claim 1, wherein: the PVC-C pipe body is characterized in that the outer side wall of the PVC-C pipe body (1) is coated with an insulating layer (8), and the outer side wall of the insulating layer (8) is coated with a waterproof anticorrosive layer (9).

6. The PVC-C axial hollow wall power bushing of claim 5, wherein: the insulating layer (8) is made of DM insulating paper, and the waterproof and anticorrosive layer (9) is made of vinyl ester anticorrosive and waterproof paint.

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