CN216597054U - Mechanical impact resistant three-core fire-resistant power cable - Google Patents

Abstract

The utility model discloses a mechanical impact resistant three-core fire-resistant power cable, which relates to the technical field of power cables and comprises a copper conductor, a mica tape winding bag, a polyethylene insulating layer, a supporting buffer mechanism, second buffer particles, a polyester tape, a protective layer mechanism, first buffer particles, a glass fiber tape, a galvanized steel tape armor and a polyvinyl chloride sheath; the utility model discloses earlier through erect the lining post between three copper conductors, make cable inner core conductor receive when assaulting, each other do not influence each other, prevent that three cable inner core looks mutual friction from appearing damaging, the cushion collar that three root cable inner core outside covers of rethread were established, make the cable receive when assaulting, the effort is offset on first rubber strip and the second rubber strip on the cushion collar, reduce the damage that the cable inner core received, the mica that the cable inner cover was established simultaneously is around taking, the glass fiber area, materials such as galvanized steel strip armor all have certain flame retardant efficiency.

Description

Mechanical impact resistant three-core fire-resistant power cable

Technical Field

The utility model relates to a power cable technical field specifically is a fire-resistant power cable of three-core of anti mechanical shock.

Background

The cable is usually a conductive product similar to a rope formed by twisting several or several groups of wires, each group of wires are mutually insulated and are usually twisted around a center, a highly-insulated covering layer is wrapped outside the whole cable, the cable has the characteristics of internal electrification and external insulation, and the derivation or new product of the wire and the cable is mainly generated by adopting new materials and special materials, changing the structure of the product, improving the process requirements and combining different products due to different application occasions and different application requirements, the convenience of equipment, the reduction of the equipment cost and the like.

But partial cable is in the installation, when the staff dragged the cable, the cable can collide with ground or other materials, leads to cable epidermis or the inside damage that appears of cable, because the mechanical shock resistance ability of cable is relatively weak for there is certain risk and problem in the follow-up use of cable, and it is comparatively troublesome to carry out the cable rush repair to this time.

To this end, we propose a three-core fire-resistant power cable resistant to mechanical shocks.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anti mechanical shock's fire-resistant power cable of three-core to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides an anti mechanical shock's fire-resistant power cable of three-core, includes copper conductor, mica tape-wound package, polyethylene insulation layer, supports buffer gear, second buffering granule, polyester area, protective layer mechanism, first buffering granule, glass fiber band, zinc-plated steel strip armor and polyvinyl chloride sheath, protective layer mechanism includes cushion collar, first rubber strip and second rubber strip, the even circumference in outside of cushion collar distributes and has first rubber strip, the inner wall of cushion collar is horizontal evenly distributed second rubber strip, glass fiber band and the even packing in the outside of cushion collar have first buffering granule.

Further, support buffer gear including lining post, recess and buffering cotton, the recess has evenly been seted up to the lateral wall of lining post, and the quantity of recess is three, be fixed with the buffering cotton through the adhesion in the recess.

Furthermore, a mica tape winding belt is sleeved on the outer wall of the copper conductor, a polyethylene insulating layer is sleeved on the side wall of the mica tape winding belt, the polyethylene insulating layer is connected with the groove in a clamping mode, and second buffer particles are uniformly filled on the opposite surface of the polyethylene insulating layer and the second rubber strip.

Furthermore, a galvanized steel strip armor is sleeved on the outer wall of the glass fiber belt, a polyvinyl chloride sheath is sleeved on the outer wall of the galvanized steel strip armor, and the galvanized steel strip armor is uniformly wound on the outer wall of the glass fiber belt.

Furthermore, the first buffer particles and the second buffer particles are integrally extruded and formed, and the shapes of the first buffer particles and the second buffer particles are both spherical.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses, through setting up the lining post between three copper conductors, make cable inner core conductor receive when assaulting, each other do not influence, prevent that three cable inner core looks mutual friction from appearing the damage, the cushion collar that three cable inner core outside covers of rethread were established, make the cable receive when assaulting, the effort is offset on first rubber strip and the second rubber strip on the cushion collar, reduce the damage that the cable inner core received, the mica that the cable inner cover was established simultaneously is around taking the bag, the glass fiber area, materials such as galvanized steel strip armor all have certain flame retardant efficiency, make the high temperature resistant of whole cable, it is thermal-insulated to keep warm, it is insulating, prevent fires fire and be fire-retardant, performances such as corrosion resistance are better.

Drawings

Fig. 1 is a schematic side view sectional structure view of the mechanical impact resistant three-core fire-resistant power cable of the present invention;

FIG. 2 is a schematic view of the overall structure of the supporting and buffering mechanism of the present invention;

FIG. 3 is a schematic sectional view of the protective layer mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure of the lining pillar and the cushion cotton of the present invention;

fig. 5 is a schematic view of the connection structure of the glass fiber tape and the galvanized steel tape armor of the present invention.

In the figure: 1. a copper conductor; 2. wrapping mica with a tape; 3. a polyethylene insulating layer; 4. a supporting buffer mechanism; 401. a lining column; 402. a groove; 403. buffering cotton; 5. second buffer particles; 6. a polyester tape; 7. a protective layer mechanism; 701. a buffer sleeve; 702. a first rubber strip; 703. a second rubber strip; 8. first buffer particles; 9. a glass fiber tape; 10. galvanizing steel tape armoring; 11. a polyvinyl chloride sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution:

as shown in fig. 1, the whole mechanical impact resistant three-core fire-resistant power cable is mainly divided into two parts, one is a structure for protecting the outer wall of the cable, so that when the cable is used in a normal state, the inner conductor of the cable cannot be damaged due to misoperation of workers, and the other is a structure for counteracting the acting force brought to the cable by a buffer mechanism in the cable when the cable is vibrated, knocked or subjected to other mechanical impacts, so that the inner conductor of the cable is prevented from being damaged, which is not beneficial to overhaul of the workers;

the outer wall polyvinyl chloride sheath 11 of the cable is made of cross-linked PVC material, and has good mechanical property and fire resistance, so that the polyvinyl chloride sheath 11 can well protect the inner material of the cable, when the outer wall polyvinyl chloride sheath 11 is damaged, the second layer of the cable is protected by the galvanized steel tape armor 10, the winding mode of the galvanized steel tape armor 10 is shown in figure 5, when the cable is wound, the galvanized steel tape armor 10 wound on the glass fiber tape 9 cannot be damaged due to overlarge rotating torque of the cable, a layer of glass fiber tape 9 is also sleeved on the inner wall of the galvanized steel tape armor 10, the glass fiber tape 9 has the characteristics of high temperature resistance, heat preservation, insulation, fire resistance, corrosion resistance, aging resistance, weather resistance, high strength, smooth appearance and the like, the characteristics of the glass fiber tape 9 are very consistent with the three-core fire-resistant power cable with mechanical impact resistance, and indirectly enhances the fire resistance and fire resistance of the whole cable, the polyvinyl chloride sheath 11, the galvanized steel tape armor 10 and the glass fiber tape 9 belong to a protective layer of the whole cable, the cable has certain characteristics of fire resistance, flame retardance, insulation and the like, and the protection of the outer wall ensures that the inner conductor of the cable works more safely;

the inner walls of the glass fibers are the first buffer particles 8 which are compressed and integrated, and certain gaps exist among the whole first buffer particles 8, so that the buffer performance among the whole first buffer particles 8 is better, when the outside of the cable is impacted to a certain degree, after acting force is transmitted to the whole first buffer particles 8, the acting force is counteracted after being transmitted among the first buffer particles 8 one by one, and the acting force reaching the protective layer mechanism 7 is greatly reduced;

similarly, the whole protection layer mechanism 7 is partially in direct contact with the polyethylene insulation layer 3 on the copper conductor 1, as shown in fig. 3, the first rubber strips 702 are uniformly distributed on the outer wall of the buffer sleeve 701 along the circumference, the second rubber strips 703 are transversely and uniformly distributed on the inner wall of the buffer sleeve 701 along the circumference, the contact area between the buffer sleeve 701 and the first buffer particles 8 is increased, so that the force dispersing effect of the buffer sleeve 701 is better, the second buffer particles 5 are also arranged in the second rubber strip 703, the whole second buffer particles 5 are clamped in the second rubber strip 703, the same second buffer particles 5 wrap the cable lead main body inside, polyester tapes 6 are fixed on the raised positions of the second rubber strips 703 and sleeved on the outer walls of the second buffer particles 5, and the polyester tapes 6 are bound in the clamping of the second buffer particles 5, so that the stability of the whole cable conductor main body in the buffer sleeve 701 is higher;

finally, the whole cable lead main body is divided into a copper conductor 1, a mica tape winding tape 2 and a polyethylene insulating layer 3, and the mica tape winding tape 2 and the polyethylene insulating layer 3 wound on the surface of the copper conductor 1 further improve the fire resistance of the cable;

three copper conductors 1 of the three-core fire-resistant power cable are isolated by the whole supporting and buffering mechanism 4, as shown in fig. 4, the whole supporting and buffering mechanism 4 comprises lining columns 401, grooves 402 and buffering cotton 403 for supporting, the lining columns 401 are made of soft rubber for supporting, and the buffering cotton 403 on the same lining columns 401 further offsets the impact force on the copper conductors 1, so that the whole three-core fire-resistant power cable has better mechanical impact resistance.

The utility model discloses an installation:

firstly winding a layer of mica tape winding bag 2 on the outer wall of a copper conductor 1, then winding a layer of polyethylene insulating layer 3 on the surface of the mica tape winding bag 2, and then fixing three wrapped copper wires together by using a polyester tape 6, wherein the wires of the whole cable are wound;

and then the wound cable conductor is fixed in a groove 402 of a lining column 401 on a supporting buffer mechanism 4, a protective layer mechanism 7 sleeved on a second buffer particle 5 and the second buffer particle 5 is sleeved on a three-core cable conductor, then a first buffer particle 8 is sleeved on a buffer sleeve 701, a glass fiber tape 9 is fixed on the first buffer particle 8, a galvanized steel tape armor 10 is sleeved on the glass fiber tape 9, and a polyvinyl chloride sheath 11 is sleeved on the galvanized steel tape armor 10 to complete the manufacture of the whole cable.

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.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching, and it is intended that the present disclosure be limited only by the following claims and their full scope and equivalents, since the present disclosure is chosen and described in order to best explain the principles of the invention and the practical application, thereby enabling others skilled in the art to best understand and utilize the invention.

Claims (5)

1. The utility model provides an anti fire-resistant power cable of three cores of mechanical shock, includes copper conductor (1), mica tape winding (2), polyethylene insulating layer (3), supports buffer gear (4), second buffering granule (5), polyester tape (6), protective layer mechanism (7), first buffering granule (8), glass fiber tape (9), galvanized steel strip armor (10) and polyvinyl chloride sheath (11), its characterized in that: the protective layer mechanism (7) comprises a buffer sleeve (701), a first rubber strip (702) and a second rubber strip (703), wherein the first rubber strip (702) is distributed on the outer side of the buffer sleeve (701) along the uniform circumference, the second rubber strip (703) is distributed on the inner wall of the buffer sleeve (701) transversely and uniformly, and first buffer particles (8) are uniformly filled in the outer sides of the glass fiber tape (9) and the buffer sleeve (701).

2. A mechanical impact resistant three-core fire resistant power cable according to claim 1, characterized in that: the supporting and buffering mechanism (4) comprises lining columns (401), grooves (402) and buffering cotton (403), the grooves (402) are uniformly formed in the side walls of the lining columns (401), the number of the grooves (402) is three, and the buffering cotton (403) is fixed in the grooves (402) through adhesion.

3. 3-a mechanical impact resistant three-core fire resistant power cable according to claim 2, characterized in that: the outer wall cover of copper conductor (1) is equipped with mica tape-wound package (2), and the lateral wall cover that is located mica tape-wound package (2) is equipped with polyethylene insulation layer (3), polyethylene insulation layer (3) and recess (402) looks joint, the opposite face of polyethylene insulation layer (3) and second rubber strip (703) evenly is filled with second buffering granule (5).

4. A mechanical impact resistant three-core fire resistant power cable according to claim 1, characterized in that: the outer wall cover of glass fiber belt (9) is equipped with galvanized steel strip armor (10), and the outer wall cover that is located galvanized steel strip armor (10) is equipped with polyvinyl chloride sheath (11), the outer wall of glass fiber belt (9) is twined uniformly to galvanized steel strip armor.

5. A mechanical impact resistant three-core fire resistant power cable according to claim 1, characterized in that: the first buffer particles (8) and the second buffer particles (5) are formed by integrated extrusion, and the first buffer particles (8) and the second buffer particles (5) are spherical.

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