CN218447321U - Reinforced PVC cable protection sleeve - Google Patents

Abstract

The utility model relates to a reinforced PVC cable protective sleeve, which belongs to the technical field of cables; the cable core is wrapped in the insulating layer, and glass fibers are filled between the insulating layer and the cable core; the polyester tape is wound outside the insulating layer; the sealing sheath is sleeved outside the insulating layer, and a plurality of hemp ropes and water-blocking yarns are arranged in the sealing sheath; aramid fibers are filled between the sealing sheath and the insulating layer, and the hemp ropes and the water-blocking yarns are distributed at intervals; the armor protective layer is sleeved outside the sealing sheath, and talcum powder is arranged between the armor protective layer and the sealing sheath; the PVC sheath is fixed on the outer side of the armor protective layer; the cable is formed by combining multiple materials, the high temperature resistance, the water resistance, the tensile resistance and the like of the cable are enhanced, the probability of cable damage is greatly reduced, and the practicability is high.

Description

Reinforced PVC cable protection sleeve

Technical Field

The utility model relates to the technical field of cables, concretely relates to reinforcement type PVC cable protection sleeve.

Background

The PVC cable protective sleeve is a novel sleeve material which is popularized and used in power engineering. It is the most commonly used protective sleeve for protecting wires and cables. It is widely used because of its excellent insulating properties, high chemical stability, no rusting, no aging, and adaptability to severe environments. The existing PVC cable sleeve is usually made of a single PVC material through one-step molding, the firmness is low, and the existing PVC cable sleeve is easy to break in an environment with high firmness, so that a cable is damaged, a line fault is caused, the material is wasted during maintenance and replacement, and a large amount of manpower and financial resources are required; therefore, a reinforced PVC cable protective sleeve is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's defect and not enough, provide a reinforcement type PVC cable protection sleeve, adopt multiple material combination shaping, strengthen the high temperature resistance of cable, water-blocking nature and stretching resistance etc. the probability that the cable that significantly reduces damaged, the practicality is strong.

In order to achieve the above purpose, the utility model adopts the following technical proposal: it comprises a cable core, an insulating layer and glass fiber; the cable core is wrapped in the insulating layer, and glass fiber is filled between the insulating layer and the cable core;

it also includes:

the polyester belt is wound outside the insulating layer;

the sealing sheath is sleeved outside the insulating layer, and a plurality of hemp ropes and water-blocking yarns are arranged in the sealing sheath; aramid fibers are filled between the sealing sheath and the insulating layer, and the hemp ropes and the water-blocking yarns are distributed at intervals;

the armor protective layer is sleeved outside the sealing sheath, and talcum powder is arranged between the armor protective layer and the sealing sheath;

the PVC sheath is fixed on the outer side of the armor protective layer.

Preferably, a tear string is provided in the glass fiber.

Preferably, the aramid fiber is provided with a tearing rope.

Preferably, the PVC sheath is attached to the lower arc-shaped plate, and first connecting plates are symmetrically fixed on the left side and the right side of the lower arc-shaped plate; the lead screw penetrates through the first connecting plate in a bilateral symmetry mode, and supporting seats are fixed at the bottom end of the lead screw; the supporting seat is arranged in an arc shape, and the supporting seat is tightly attached to the pipeline; and each screw rod is screwed with a screw nut, and the screw nut is arranged below the first connecting plate.

Preferably, the top ends of the screw rods are fixed with limit blocks, and the limit blocks are embedded in limit grooves in the second connecting plate; an upper arc-shaped plate is fixed between the two second connecting plates.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a reinforcement type PVC cable protection sleeve adopts multiple material combination shaping, the high temperature resistance of reinforcing cable, water-blocking nature and stretching resistance etc. the probability that the cable that significantly reduces damaged, the practicality is strong.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 isbase:Sub>A sectional view taken along the planebase:Sub>A-base:Sub>A in fig. 1.

Fig. 3 is a schematic view of the usage state of the present invention.

Description of reference numerals:

the cable comprises a cable core 1, an insulating layer 2, glass fibers 3, a polyester tape 4, a sealing sheath 5, a hemp rope 6, a water-blocking yarn 7, aramid fibers 8, an armor protective layer 9, talcum powder 10, a PVC sheath 11, a tearing rope 12, a lower arc-shaped plate 13, a first connecting plate 14, a lead screw 15, a supporting seat 16, a pipeline 17, a screw nut 18, a limiting block 19, a second connecting plate 20, a limiting groove 21 and an upper arc-shaped plate 22.

Detailed Description

In the following, the technical solutions of the present invention will be clearly and completely described with reference to the accompanying drawings, and the preferred embodiments in the description are only examples, and all other embodiments obtained by those skilled in the art without any inventive work belong to the scope of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to fig. 3, the following technical solutions are adopted in this embodiment: the cable comprises a cable core 1, an insulating layer 2 and glass fibers 3; the cable core 1 is wrapped in the insulating layer 2, and glass fiber 3 is filled between the insulating layer 2 and the cable core 1; the glass fiber 3 has the advantages of corrosion resistance, high strength, long service life, high insulation and the like.

It also includes:

the polyester tape 4 is wound outside the insulating layer 2; the polyester tape 4 has heat insulation, moisture resistance and mechanical protection, improves the electric strength, provides sufficient heat resistance, and prevents the deformation or adhesion of a conductor insulator due to obvious reverse heat transfer in the process of sheath re-sheathing;

the sealing sheath 5 is sleeved outside the insulating layer 2, and a plurality of hemp ropes 6 and water-blocking yarns 7 are arranged in the sealing sheath 5; aramid fibers 8 are filled between the sealing sheath 5 and the insulating layer 2, and hemp ropes 6 and water-blocking yarns 7 are distributed at intervals; the hemp rope 4 enhances the tensile strength and the flexibility of the cable; the water blocking yarn 7 is a yarn with strong absorption capacity and plays a role in preventing water from entering the cable; the aramid fiber 8 can reduce the weight of the cable, can be bent, has good insulation and can play a role in aging resistance;

the armor protection layer 9 is sleeved outside the sealing sheath 5, and talcum powder 10 is arranged between the armor protection layer 9 and the sealing sheath 5; the armor protective layer 9 has certain external force resistance, can prevent rats from biting and acid-base corrosion; the talcum powder 10 is beneficial to reducing the conflict between the sealing sheath 5 and the armor protective layer 9 and reducing the contact surface between the sealing sheath 5 and the armor protective layer 9, so that the sealing sheath 5 and the armor protective layer 9 are not easy to stick together;

the PVC sheath 11 is fixed on the outer side of the armor protective layer 9; the PVC sheath 11 has good physical and mechanical properties such as tensile strength, bending resistance, vibration resistance and torsion resistance, can protect the inner sheath layer from mechanical damage and chemical corrosion, does not contact with water vapor and is affected with damp, prevents the contact conductor from being electrically shocked, prevents fire and flame, enhances mechanical strength, prolongs the service life and the like, and ensures that the cable can be normally and reliably operated and used in a severe environment.

A tearing rope 12 is arranged in the glass fiber 3; a tearing rope 12 is arranged in the aramid fiber 8; the arrangement of the tearing rope 12 can tear the insulating layer 2 and the sealing sheath 5 more conveniently and rapidly when the cable is stripped.

The second embodiment:

as shown in fig. 1-3, in the present embodiment, based on the first embodiment, the PVC sheath 11 is attached to the lower arc-shaped plate 13, and first connecting plates 14 are fixed on the lower arc-shaped plate 13 in a left-right symmetric manner; the screw rods 15 are arranged through the first connecting plate 14 in a bilateral symmetry mode, and supporting seats 16 are fixed at the bottom ends of the screw rods 15; the supporting seat 16 is arranged in an arc shape, and the supporting seat 16 is tightly attached to the pipeline 17; a nut 18 is screwed on each screw rod 15 in a threaded manner, and the nut 18 is arranged below the first connecting plate 14; the top end of the screw rod 15 is fixed with a limiting block 19, and the limiting block 19 is embedded in a limiting groove 21 on the second connecting plate 20; an upper arc-shaped plate 22 is fixed between the two second connecting plates 20; when the screw 18 is rotated, the screw 18 drives the first connecting plate 14 to move upwards along the screw rod 15, and the cable is driven to move upwards.

When using the utility model discloses the time, the preparation process of cable divide into three steps, and first step is: the cable core 1 is processed by an extruding machine, an insulating layer 2 is formed outside the cable core 1, meanwhile, glass fiber 3 is filled between the insulating layer 2 and the cable core 1, and a tearing rope 12 is added; winding a polyester tape 4 on the outer part of the insulating layer 2, and collecting the semi-finished product of the step by using a take-up roller;

the second step is: forming a sealed sheath 5 outside the semi-finished product by passing the semi-finished product in the first step through a plastic extruding machine, adding four hemp ropes 6 and four water-blocking yarns 7 into the sealed sheath 5 at the same time, wherein the hemp ropes 6 and the water-blocking yarns 7 are distributed at intervals, filling aramid fibers 8 into a gap in the sealed sheath 5, and adding a tearing rope 12; collecting the semi-finished product in the step by using a take-up roller;

the third step is: passing the semi-finished product of the second step through a plastic extruding machine, forming a PVC sheath outside the semi-finished product, adding talcum powder 10 on the outer wall of the sealing sheath 5, and winding an armor protective layer 9; collecting the finished product by using a take-up roller;

at present, more and more choices of laying cables are made for underground laying in the pipeline 17, the cables are laid in the pipeline 17, the PVC sheaths 11 of the cables are easily worn by the edge of the pipeline 17, the end heads of the pipeline 17 need to be sealed, and the cables need to be lifted to the central position of the pipeline 17, so that the operation of sealing the pipeline 17 is facilitated; the lower arc-shaped plate 13 is placed below the PVC sheath 11, and the supporting seat 16 is abutted against the inner wall of the pipeline 17; a limiting groove 21 on a second connecting plate 20 is arranged on a limiting block 19, and the screw rod 15 is limited to rotate; when the screw 18 is rotated, the screw 18 drives the first connecting plate 14 to move upwards along the screw rod 15, and the cable is driven to move upwards to the central position of the pipeline 17.

After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:

1. the sleeve of the cable is formed in three times, the glass fiber 3, the polyester tape 4, the hemp rope 6, the water-blocking yarn 7, the aramid fiber 8, the armor protective layer 9 and other materials are adopted in the sleeve, the high temperature resistance, the water-blocking property, the tensile resistance and the like of the cable are enhanced, and the probability of damage of the cable is greatly reduced.

2. The arrangement of the tearing rope 12 can tear the insulating layer 2 and the sealing sheath 5 more conveniently and rapidly when the cable is stripped.

3. The mechanism setting of a connecting plate 14, lead screw 15 and screw 18 can be raised the cable to the central point of pipeline 17 and put, avoids the PVC sheath 11 of cable to be worn and torn by the edge of pipeline 17, and conveniently carries out the operation of sealed pipeline 17.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (5)

1. A reinforced PVC cable protective sleeve comprises a cable core (1), an insulating layer (2) and glass fibers (3); the cable core (1) is wrapped in the insulating layer (2), and glass fiber (3) is filled between the insulating layer (2) and the cable core (1);

it is characterized in that it also comprises:

the polyester belt (4) is wound outside the insulating layer (2);

the sealing sheath (5) is sleeved outside the insulating layer (2), and a plurality of hemp ropes (6) and water-blocking yarns (7) are arranged in the sealing sheath (5); aramid fibers (8) are filled between the sealing sheath (5) and the insulating layer (2), and hemp ropes (6) and water-blocking yarns (7) are distributed at intervals;

the armor protection layer (9), the armor protection layer (9) is sleeved outside the sealing sheath (5), and talcum powder (10) is arranged between the armor protection layer (9) and the sealing sheath (5);

the PVC protective layer (9) is fixed on the outer side of the PVC protective sleeve (11).

2. The reinforced PVC cable protection sleeve as claimed in claim 1, wherein: the glass fiber (3) is provided with a tearing rope (12).

3. The reinforced PVC cable protection sleeve as claimed in claim 2, wherein: the aramid fiber (8) is provided with a tearing rope (12).

4. The reinforced PVC cable protection sleeve of claim 1, wherein: the PVC sheath (11) is attached to the lower arc-shaped plate (13), and first connecting plates (14) are symmetrically fixed on the left and right of the lower arc-shaped plate (13); the screw rods (15) are arranged in a bilaterally symmetrical mode to penetrate through the first connecting plate (14), and supporting seats (16) are fixed at the bottom ends of the screw rods (15); the supporting seat (16) is arranged in an arc shape, and the supporting seat (16) is tightly attached to the pipeline (17); each screw rod (15) is screwed with a screw nut (18) in a threaded manner, and the screw nut (18) is arranged below the first connecting plate (14).

5. The reinforced PVC cable protection sleeve of claim 4, wherein: the top ends of the screw rods (15) are fixed with limit blocks (19), and the limit blocks (19) are embedded in limit grooves (21) on the second connecting plate (20); an upper arc-shaped plate (22) is fixed between the two second connecting plates (20).

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