CN2295282Y

CN2295282Y - Multi-hole plastic protective tube for communication and power line

Info

Publication number: CN2295282Y
Application number: CN 97210605
Authority: CN
Inventors: 楼信用
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-01-22
Filing date: 1997-01-22
Publication date: 1998-10-21
Anticipated expiration: 2007-01-22

Abstract

The utility model relates to a multi-hole plastic protective tube for communication and power line, particularly be suitable in laying underground cable, electric wire, fiber-optic cable, etc. to replace the steel tube or cement cable trough as the protective tube. The multi-hole plastic protective tube is formed by fixing one or more hollow inner tube bodies in the cavity of an outer tube body, and the inner and outer tube bodies are fixed to be integration by filling material. The inner and outer tube bodies are all PVC plastic, and the filling material is expanded plastic. The protective tube is small in volume, with the intensity enhanced more than 5 times stronger than the original single tube and the weight being only 1/10 of the cement tube. The utility model has small force of friction, convenience for the cable to be penetrated in and pulled out, convenient transport and use in construction, unnecessary large foundation engineering and base level, reduced building cost of projects, and water resistant, corrosion resistant and flame proof as well as fire prevention.

Description

The porous plastics pillar of communication, power circuit

The utility model relates to employed protection tube in a kind of communication, the electric power system, the porous plastics pillar of communication, power circuit.Be suitable for especially lay cables underground, electric wire, fiber optic cables etc. replace the cement cable trough to use as pillar.

Existing concrete cable trough, coarse because of concrete, frictional force is big, and volume is big, deal is heavy, it is all inconvenient to construct, transport, and cable is difficult to pass, and easily cable skin is poked because of carelessness slightly, so pillar length should not be grown.Joint, seam are more for this reason, easily water inlet.For ease of maintenance, often 50-100 rice must be provided with a cable shaft.Also need laying level basis, cable laying must be with ground, road heavy excavation for this reason, foundation works cost height.

If setting of ground or surface car travel, all can influence the change in location of concrete cable trough, make its two ends uneven and fracture, then cable just is sheared and cuts off, and causes a serious accident.

The purpose of this utility model is to provide the porous plastics pillar of a kind of communication, power circuit, its volume is little, in light weight, cost is low, corrosion-resistant, water-fast, fire-retardant fireproof, do not need big foundation works just can construct, construction, convenient transportation, smooth surface frictional force are little, and cable is easy to pierce into and can pulls out, and is not subjected to the influence of external environment.

The utility model is achieved in that the porous plastics pillar of communication, power circuit is to fix one or more hollow interior tube body in the outer tube body inner chamber to form, and is fixed into integral body by filler with inside and outside body.

Fig. 1. structural representation of the present utility model.

Fig. 2. the alternative plan structural representation.

Fig. 3. third party's case structural representation.

Fig. 4. cubic case structural representation.

Fig. 5. the 5th scenario-frame schematic diagram.

Fig. 6. the pipe joint structure schematic diagram.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described.

Outer tube body (1), (7), (8), (9), (10) are plastic tube circle or rectangle or other geometry and that made by materials such as PVC.

Interior tube body (3), (4), (5) for various different-diameters or same diameter circular or other geometry and the plastic tube made by materials such as PVC.

Filler (2) is Polyurethane foaming raw material or polyphenyl, foam polyvinyl chloride raw material and in type foamed plastics.

Pipe joint (6), (6 ') match with outer tube body for circle or rectangular enclosure, and the inwall mid portion has a positioning bar (11), and it is placed in the middle eventually that connected forward and backward two sections outer tube body positions are cheated.Only need be during use with connected two pipes respectively with the two ends of its two ends insertion tube joint (6) or (6 ') and add that binding agent fixes.

The interior tube body (4) of 6 same diameter is put into the outer tube body (7) of rectangle by designing requirement, again filler (2) Polyurethane foaming raw material is poured in the gap between inside and outside body (4), (7) and make it be fixed into porous plastics pillar shown in Figure 2.Perhaps make in type foamed plastics, foamed plastics is filled in the gap as filler (2), and put into adhesive or do not put adhesive and be integral formation as shown in Figure 3 according to the gap shape between inside and outside body (4), (5), (8).

The utility model is compared with technology with existing: because having adopted inside and outside body and filler by two kinds of different materials The pillar that is made into, and filler is made for elastomeric material, therefore can bear bigger impulsive force. And interior, Outer tube body is again the plastics such as PVC, and its intensity is big, flexible, volume is little, in light weight, and strength ratio is originally single Pipe strengthens more than 5 times, and weight only is 1/10 of original pipe of cement. Run into ground and sink, plastic tube is crooked The time only have influence on outer tube body, and the cable that is placed in the interior tube body can not be affected, and cable can not take place Be sheared and cause phenomenon of rupture. And PVC plastic tube frictional force is little, smooth surface, and cable pierces into easily, and Can pull out, because its volume is little, in light weight, so transportation, easy construction, do not need big foundation engineering and water Just can construct in flat basis. Material therefor is all corrosion-resistant, and water-fast, fire-retardant, fire prevention can be widely used in chemical industry Industry and do cable testing bridge and use. Length can be accomplished any length that needs, and is generally one in 3-12 rice, because of Few, the no seam of this joint, the while can reduce the number of cable shaft, by cable shaft of original every 50-100 rice, Reduce to per 300 meters a cable shaft just need be set, greatly reduce construction costs.

Claims

1. the porous plastics pillar of a communication, power circuit is formed for fixing one or more hollow interior tube body in the outer tube body inner chamber, it is characterized in that by filler (2) inside and outside body being fixed into integral body.

2. pillar according to claim 1, it is characterized in that outer tube body (1), (7), (8), (9), (1,0) are plastic tube circle or rectangle or other geometry and that made by materials such as PVC, interior tube body (3), (4), (5) are the circular or other geometry of various similar and different diameters and the plastic tube made by materials such as PVC, and filler (2) pours into or fills in for Polyurethane foaming raw material or polyphenyl, foam polyvinyl chloride raw material and in type foamed plastics in the gap of inside and outside body and is fixed into.

3. pillar according to claim 1 is characterized in that two sections outer tube bodies link into an integrated entity with pipe joint (6) or (6 '), and pipe joint (6), (6 ') match with outer tube body for circle or rectangular enclosure, and the inwall mid portion has a positioning bar (11).