CN214324448U - Protective sleeve with reinforcing structure - Google Patents

Abstract

The utility model relates to a cable protection technical field just discloses a protecting pipe with reinforcing structure, including protecting pipe main part and connection sheath, the protecting pipe main part includes insulating layer, fire-retardant layer, enhancement layer, reinforcing wire, inoxidizing coating and wearing layer, fire-retardant layer parcel is in the outside of insulating layer, and the enhancement layer parcel is in the outside on fire-retardant layer, and the reinforcing wire setting is in the inside of enhancement layer, and the inoxidizing coating parcel is in the outside of enhancement layer, and the wearing layer parcel is in the outside of inoxidizing coating, the both ends of protecting pipe main part with be connected sheath threaded connection. The inoxidizing coating weakens the collision when bumping, reduces the injury to the protective tube main part, and the wearing layer can increase the life of protective tube, through the enhancement silk that adds the mild steel wire preparation in the enhancement layer, promotes the structural strength of enhancement layer, and fire-retardant layer and insulating layer make the fire behavior of protective tube main part and the great promotion of insulating properties, the utility model provides a yielding ageing problem of protective tube.

Description

Protective sleeve with reinforcing structure

Technical Field

The utility model relates to a cable protection technical field specifically is a protecting pipe with reinforcing structure.

Background

The cable protective sleeve is a novel sleeve material which is popularized and used in power engineering. With the rapid development of power cable buried laying engineering and the higher requirements put forward on cable sleeves, the cable protective sleeve is made of Polyethylene (PE) and a high-quality steel pipe through sand blasting and shot blasting pretreatment, plastic dipping or coating, and heating and curing processes. It is one of the most commonly used electrically insulating tubes for protecting wires and cables.

However, most of the existing cable protective sleeves adopt polyvinyl chloride protective sleeves, and the problems of aging deformation, damage, electric leakage, insulation performance reduction and the like easily occur along with the prolonging of the service time, so that the cable damage and line faults are caused, and the use and electricity utilization safety of the cable are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a protecting pipe with reinforcing structure reaches protecting pipe and has high impact resistance, high tenacity, not fragile purpose.

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

the utility model provides a protecting pipe with reinforcing structure, includes protecting pipe main part and connection sheath, the protecting pipe main part includes insulating layer, fire-retardant layer, enhancement layer, reinforcing wire, inoxidizing coating and wearing layer, fire-retardant layer parcel is in the outside of insulating layer, and the enhancement layer parcel is in the outside of fire-retardant layer, and the reinforcing wire setting is in the inside of enhancement layer, and the inoxidizing coating parcel is in the outside of enhancement layer, and the wearing layer parcel is in the outside of inoxidizing coating.

The two ends of the protective sleeve main body are connected with the connecting protective sleeve through threads.

Preferably, the external screw thread is arranged on the two sides of the protective sleeve main body, the internal screw thread corresponding to the external screw thread of the protective sleeve main body is arranged inside the connecting protective sleeve, and the flexible liner is arranged inside the connecting protective sleeve.

Preferably, the insulating layer is made of ethylene propylene rubber.

Preferably, the flame retardant layer is made of neoprene.

Preferably, the material of enhancement layer is soft silica gel, and the reinforcing wire uses the mild steel wire that the diameter is four hundred fifty microns to make.

Preferably, the material of the protective layer is a thermoplastic polyurethane elastomer rubber material.

Preferably, the wear-resistant layer is made of polyurethane rubber.

The utility model provides a protective sleeve with reinforcing structure. The method has the following beneficial effects:

(1) the utility model discloses a set up the inoxidizing coating that thermoplastic polyurethane elastomer rubber material made in the protecting pipe and protect the inside cable of protecting pipe, thermoplastic polyurethane rubber material is not only intensity high, and elasticity is also fine, can weaken the collision when bumping, reduce the injury to the protecting pipe main part, and simultaneously, use the wearing layer of making by polyester or polyether and the polyurethane rubber that diisocyanate class compound polymerization formed, excellent wear resistance has, can increase the life of protecting pipe, through adding the mild steel wire in the enhancement layer, promote the structural strength of enhancement layer.

(2) The utility model discloses a fire-retardant layer and the EP rubbers that make that set up chloroprene rubber in the inside of protecting pipe main part make the insulating layer, make the fire behavior of protecting pipe main part and the great promotion of insulating properties, chloroprene rubber that fire-retardant layer used is not nevertheless nonflammable, even also can extinguish by oneself after catching fire, even so the cable short circuit, produce the spark and also can not arouse the conflagration, make the protecting pipe possess good fire behavior, the good electrical insulation nature of EP rubbers can guarantee that the soft steel wire that sets up can not take place the short circuit between cable and the enhancement layer, and the soft silica gel enhancement layer that sets up more can further promote insulating properties, and guarantee the compliance of whole protecting pipe, also guarantee simultaneously that the soft steel wire is crowded by sufficient activity space, make the soft steel wire can not take place great displacement because of buckling of the cable.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side sectional view of the sheath body of the present invention;

fig. 3 is a structure diagram of the enhancement layer of the present invention.

In the figure: 1. a sheath tube main body; 2. connecting a sheath; 3. an insulating layer; 4. a flame retardant layer; 5. an enhancement layer; 6. reinforcing wires; 7. a protective layer; 8. and a wear-resistant layer.

Detailed Description

As shown in fig. 1-3, the utility model provides a technical solution:

a protective sleeve with a reinforcing structure comprises a protective sleeve main body 1 and a connecting protective sleeve 2, wherein the protective sleeve main body 1 comprises an insulating layer 3, a flame-retardant layer 4, a reinforcing layer 5, a reinforcing wire 6, a protective layer 7 and a wear-resistant layer 8, the insulating layer 3 is made of ethylene propylene rubber, the ethylene propylene rubber has excellent electrical insulation, the insulating layer 3 made of the ethylene propylene rubber can ensure that a soft steel wire arranged between a cable and the reinforcing layer 5 cannot generate short circuit, the flame-retardant layer 4 is wrapped outside the insulating layer 3, the flame-retardant layer 4 is made of chloroprene rubber, the chloroprene rubber used for the flame-retardant layer 4 is not flammable but not flammable, and can be automatically extinguished even after ignition is carried out, so that the cable cannot cause fire even if short circuit is generated, the protective sleeve main body 1 has excellent fireproof performance, the softness of the chloroprene rubber is also very good, the chloroprene rubber cannot crack when being bent, and the reinforcing layer 5 is wrapped outside the flame-retardant layer 4, the reinforcing wire 6 is arranged inside the reinforcing layer 5, the reinforcing layer 5 is made of soft silica gel, the reinforcing wire 6 is made of soft steel wires with the diameter of four hundred fifty micrometers, the soft silica gel has good electrical insulation performance, the dielectric loss, the voltage resistance, the electric arc resistance, the corona resistance, the volume resistivity, the surface resistivity and the like of the soft silica gel are named as prestige cord among insulation materials, and the electrical performance of the soft silica gel is slightly influenced by temperature and frequency, so the reinforcing layer 5 made of the soft silica gel also has excellent electrical insulation performance, meanwhile, the reinforcing layer 5 also has excellent water repellency, the cable sheath main body 1 still has good insulation performance under the underground wet condition, the protective layer 7 is wrapped outside the reinforcing layer 5, the protective layer 7 is made of thermoplastic polyurethane elastomer rubber materials, and the protective layer 7 made of the thermoplastic polyurethane rubber materials has high strength, and the elasticity is also good, the protective layer 7 can weaken and absorb the collision when the collision happens, the damage of the collision to the cable in the protective sleeve main body 1 is reduced, the wear-resistant layer 8 is wrapped outside the protective layer 7, the wear-resistant layer 8 is made of polyurethane rubber, the wear-resistant performance of the polyurethane rubber for making the wear-resistant layer 8 is the highest of all rubbers, so the wear-resistant layer 8 can well protect the protective sleeve main body 1 and prevent the external soil from damaging the protective sleeve main body 1, the protective layer 7 made of thermoplastic polyurethane elastomer rubber material is arranged in the protective sleeve to protect the cable in the protective sleeve, the thermoplastic polyurethane rubber material not only has high strength, but also has good elasticity, the collision can be weakened when the collision happens, the damage to the protective sleeve main body 1 is reduced, and meanwhile, the wear-resistant layer 8 made of polyurethane rubber polymerized by polyester or polyether and diisocyanate compounds is used, have excellent wear resistance, can increase the life of protective sheath pipe, through adding the mild steel wire in enhancement layer 5, promote the structural strength of enhancement layer 5.

The both ends of protecting pipe main part 1 and 2 threaded connection of connecting sheath, the outside external screw thread that sets up in 1 both sides of protecting pipe main part, the inside internal thread that corresponds with 1 external screw thread of protecting pipe main part that is provided with in 2 both sides of connecting sheath, the inside of connecting sheath 2 is provided with flexible liner, through the both ends with protecting pipe main part 1 and 2 threaded connection of connecting sheath for protecting pipe main part 1 can infinitely connect, convenient construction.

When using, protect the inside cable of protecting pipe through inoxidizing coating 7, thermoplastic polyurethane rubber material is not only intensity high, can weaken the collision when bumping, reduce the injury to protecting pipe main part 1, wearing layer 8 has the excellent wear resistance, can increase the life of protecting pipe, through the reinforcing wire 6 that adds the mild steel wire preparation in enhancement layer 5, promote the structural strength of enhancement layer 5, fire-retardant layer 4 and insulating layer 3, make the fire behavior of protecting pipe main part 1 and the great promotion of insulating properties.

To sum up, the utility model discloses a set up the inoxidizing coating 7 that thermoplastic polyurethane elastomer rubber materials made in the protective sheath and protect the cable of protective sheath inside, thermoplastic polyurethane rubber materials not only intensity is high, and elasticity is also fine, can weaken the collision when bumping, reduce the injury to protective sheath main part 1, simultaneously, use the wearing layer 8 that polyurethane rubber that is formed by polyester or polyether and diisocyanate compound polymerization makes, have excellent wear resistance, can increase the life of protective sheath, through adding the mild steel wire in enhancement layer 5, promote the structural strength of enhancement layer 5; through the inside fire-retardant layer 4 and the ethylene propylene rubber that set up chloroprene rubber and make insulating layer 3 that make at protective sleeve main part 1, make protective sleeve main part 1's fire behavior and the great promotion of insulating properties, chloroprene rubber that fire-retardant layer 4 used is not nevertheless nonflammable, even also can extinguish by oneself after catching fire, even so even the cable short circuit, produce the spark and also can not arouse the conflagration, make the protective sleeve possess good fire behavior, the fine electrical insulation nature of ethylene propylene rubber can guarantee that the soft steel wire that sets up between cable and the enhancement layer 5 can not take place the short circuit, and the soft silica gel enhancement layer 5 that sets up more can further promote insulating properties, and guarantee the compliance of whole protective sleeve, also guarantee simultaneously that the soft steel wire congests by abundant activity space, make the soft steel wire can not take place great displacement because of buckling of cable.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention 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 in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a protecting pipe with reinforcing structure, includes protecting pipe main part (1) and connecting sheath (2), its characterized in that: the protective sleeve main body (1) comprises an insulating layer (3), a flame-retardant layer (4), a reinforcing layer (5), a reinforcing wire (6), a protective layer (7) and a wear-resistant layer (8), wherein the flame-retardant layer (4) is wrapped outside the insulating layer (3), the reinforcing layer (5) is wrapped outside the flame-retardant layer (4), the reinforcing wire (6) is arranged inside the reinforcing layer (5), the protective layer (7) is wrapped outside the reinforcing layer (5), and the wear-resistant layer (8) is wrapped outside the protective layer (7);

the two ends of the protective sleeve main body (1) are in threaded connection with the connecting protective sleeve (2).

2. The sheathing tube with the reinforcing structure according to claim 1, wherein: the protective sleeve is characterized in that external threads are arranged on the two sides of the protective sleeve main body (1), internal threads corresponding to the external threads of the protective sleeve main body (1) are arranged inside the connecting protective sleeve (2), and a flexible liner is arranged inside the connecting protective sleeve (2).

3. The sheathing tube with the reinforcing structure according to claim 1, wherein: the insulating layer (3) is made of ethylene propylene rubber.

4. The sheathing tube with the reinforcing structure according to claim 1, wherein: the flame-retardant layer (4) is made of chloroprene rubber.

5. The sheathing tube with the reinforcing structure according to claim 1, wherein: the reinforcing layer (5) is made of soft silica gel, and the reinforcing wires (6) are made of soft steel wires with the diameter of four hundred and fifty micrometers.

6. The sheathing tube with the reinforcing structure according to claim 1, wherein: the protective layer (7) is made of thermoplastic polyurethane elastomer rubber material.

7. The sheathing tube with the reinforcing structure according to claim 1, wherein: the wear-resistant layer (8) is made of polyurethane rubber.

Images