CN218276052U

CN218276052U - Waterproof cable accessory with good sealing performance

Info

Publication number: CN218276052U
Application number: CN202222235492.5U
Authority: CN
Inventors: 高雪君
Original assignee: Suzhou Bofa Electric Equipment Co ltd
Current assignee: Suzhou Bofa Electric Equipment Co ltd
Priority date: 2022-08-24
Filing date: 2022-08-24
Publication date: 2023-01-10
Anticipated expiration: 2032-08-24

Abstract

The utility model discloses a waterproof cable accessory that leakproofness is good, including the lag, the inner chamber of lag is provided with sealed rubber ring, sealed rubber ring's inner chamber is provided with O type circle, the lag includes the PVC substrate layer, the internal surface of PVC substrate layer is provided with fills the glue film, the internal surface of filling the glue film is provided with waterproof tape. The utility model has the advantages that: the ethylene propylene diene monomer rubber layer has good tear resistance, large elastic modulus, high tensile strength, high power frequency breakdown strength and better compatibility with silicone oil, so that the ethylene propylene diene monomer rubber layer is suitable for producing stress cones of products with mechanical pressing devices, such as a high-pressure integral prefabricated intermediate joint main body, a sleeve type terminal, a GIS terminal, an assembly type joint and the like, the service strength of the sealing rubber ring is increased, the service life of the sealing rubber ring is prolonged, and the ethylene propylene diene monomer rubber layer has better weather resistance, hydrophobicity, elasticity and elongation and is more attached to a sealed cable.

Description

Waterproof cable accessory with good sealing performance

Technical Field

The utility model relates to a cable accessories correlation technique field specifically is a waterproof cable accessories that leakproofness is good.

Background

The cable terminal is a device which is arranged at two ends of a cable line and has certain insulation and sealing performance to connect the cable with other electrical equipment, and the cable connector is a device which is arranged between the cable and the cable to communicate two or more cable conductors to form a continuous circuit and has certain insulation and sealing performance.

The waterproof cable with good sealing performance comprises cable conductors, wherein the number of the cable conductors is a plurality, the cable conductors are divided into five groups on average, the outer surface of each cable conductor is sleeved with a first insulating sleeve, the outer surface of the first insulating sleeve is sleeved with a fireproof filling layer, and the outer surface of the fireproof filling layer is sleeved with a second insulating sleeve. This waterproof cable that leakproofness is good, through setting up in the protection to cable conductor, the effect of sun-proof sealing layer is that the protection cable is outmost, prevent that the outmost of cable from leading to the leakproofness not good because of solarization takes place the crack, inside first insulation cover at the cable, the three-layer insulation layer of second insulation cover and third insulation cover has increased the leakproofness of cable, the gravel layer inside the cable can break to leak at the cable outside and absorb water when getting into inside, the inventor finds following problem in the prior art at the in-process that realizes this scheme, present waterproof cable annex, sealed effect is poor, and corrosion resisting property is poor, long-term use steam can enter into inside the cable, can influence the use in cable later stage, and the environment that exposes can cause the cable annex to damage, the life of cable annex has been shortened.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waterproof cable accessories that the leakproofness is good to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides a waterproof cable accessories that leakproofness is good, includes the lag, the inner chamber of lag is provided with sealed rubber ring, the inner chamber of sealed rubber ring is provided with O type circle, the lag includes the PVC substrate layer, the internal surface of PVC substrate layer is provided with the packing glue film, the internal surface of packing glue film is provided with waterproof area, waterproof area's internal surface is provided with the area that blocks water, sealed rubber ring includes the macromolecular material layer, the surface of macromolecular material layer is provided with the EPT rubber layer, the surface on EPT rubber layer is provided with the silastic-layer.

Preferably, the PVC base material layer comprises a PVC resin layer, the surface of the PVC resin layer is provided with a corrosion-resistant layer, and the outer surface of the corrosion-resistant layer is provided with an oxidation-resistant layer.

Preferably, the thickness of the polymer material layer is the same as that of the ethylene propylene diene monomer layer.

Preferably, the thickness of the silicone rubber layer is the same as that of the PVC resin layer.

Preferably, the O-shaped ring and the sealing rubber ring are made of the same material, and the outer surface of the sealing rubber ring is adhered to the inner surface of the O-shaped ring.

Preferably, the waterproof tape is a PO/PE co-extruded film.

Compared with the prior art, the beneficial effects of the utility model are that: the ethylene propylene diene monomer rubber layer has good tear resistance, large elastic modulus, high tensile strength, high power frequency breakdown strength and good compatibility with silicone oil, so the ethylene propylene diene monomer rubber layer is suitable for producing stress cones of products with mechanical pressing devices, such as a high-pressure integral prefabricated intermediate joint main body, a sleeve type terminal, a GIS terminal, an assembly type joint and the like, the service strength of the sealing rubber ring is increased, the service life of the sealing rubber ring is prolonged, the weather resistance, the hydrophobicity, the elasticity and the elongation are better due to the arrangement of the silicone rubber layer, the sealing performance and the waterproof performance of the cable and the sealing rubber ring are improved and cannot meet the use requirements due to the fact that the waterproof belt is formed by compounding polyester fiber woven cloth and a high-water-absorbing material, the water-swelling function is achieved, the waterproof belt is used for power cables and communicates, the moisture permeation of water and water in the cable can be reduced, the service life of the cable is prolonged, the ultrahigh sealing waterproof performance is achieved, the protective cover has good chemical resistance, acid-base resistance, alkali resistance and flame resistance, the protective cover can be placed under severe conditions, and the protective cover can maintain good corrosion resistance, and the service life of the protective cover is prolonged, and the protective cover is good in the corrosion resistance.

Drawings

Fig. 1 is a schematic front view of a waterproof cable accessory with good sealing performance;

fig. 2 is a schematic structural view of a protective sleeve of a waterproof cable accessory with good sealing performance;

fig. 3 is a schematic structural view of a sealing rubber ring of a waterproof cable accessory with good sealing performance;

fig. 4 is the utility model relates to a PVC substrate layer structure sketch map of waterproof cable accessories that the leakproofness is good.

In the figure: 1. a protective sleeve; 2. sealing the rubber ring; 201. a polymer material layer; 202. an ethylene propylene diene monomer layer; 203. a silicone rubber layer; 3. an O-shaped ring; 4. a PVC substrate layer; 401. a PVC resin layer; 402. a corrosion resistant layer; 403. an anti-oxidation layer; 5. filling the adhesive layer; 6. a waterproof tape; 7. a water blocking tape.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-4, the utility model provides a waterproof cable accessory technical scheme with good sealing performance: including lag 1, the inner chamber of lag 1 is provided with sealed rubber ring 2, the inner chamber of sealed rubber ring 2 is provided with O type circle 3, lag 1 includes PVC substrate layer 4, the internal surface of PVC substrate layer 4 is provided with packing glue film 5, the internal surface of packing glue film 5 is provided with waterproof area 6, the internal surface of waterproof area 6 is provided with water-blocking tape 7, sealed rubber ring 2 includes macromolecular material layer 201, macromolecular material layer 201's surface is provided with EPDM rubber layer 202, EPDM rubber layer 202's surface is provided with the silastic-layer 203, through PVC substrate layer 4, PVC resin layer 401, the setting of corrosion-resistant layer 402 and antioxidation layer 403, has fine acid and alkali-resistance, wear-resisting, fire-resistant performance, lag 1 exposes still can keep good mechanical properties under adverse circumstances for a long time, still has good corrosion resistance simultaneously, lag 1's corrosion resistance and chemical resistance have been increased, lag 1's life has been prolonged.

Furthermore, the PVC base material layer 4 comprises a PVC resin layer 401, the surface of the PVC resin layer 401 is provided with a corrosion-resistant layer 402, the outer surface of the corrosion-resistant layer 402 is provided with an oxidation-resistant layer 403, and the ethylene propylene diene monomer rubber layer 202 has the advantages of good tear resistance, large elastic modulus, high tensile strength, high power frequency breakdown strength and better compatibility with silicone oil, so that the high-pressure integral prefabricated intermediate joint main body, a stress cone with a mechanical pressing device, such as a sleeve type terminal, a GIS terminal, an assembly type joint and the like, is suitable for producing the high-pressure integral prefabricated intermediate joint main body, the stress cone with the mechanical pressing device, the use strength of the sealing rubber ring 2 is increased, and the service life of the sealing rubber ring 2 is prolonged.

Further, the thickness of the polymer material layer 201 is the same as that of the ethylene propylene diene monomer layer 202, and the silicone rubber layer 203 is arranged, so that the weather resistance, the hydrophobicity, the elasticity and the elongation are better, the cable is more attached to the sealed cable, the sealing performance and the waterproof performance of the cable and the sealing rubber ring 2 are improved, and the use requirement cannot be met.

Further, the thickness of silastic-layer 203 is the same with the thickness of PVC resin layer 401, through the setting of macromolecular material layer 201, has good mechanical strength, weatherability and fire resistance, can be used as structural material alone, is applied to the chemical industry and makes pipeline, panel and injection moulding, and stereoplasm polyvinyl chloride can use reinforcing material.

Further, O type circle 3 is the same with the material of sealing rubber ring 2, and sealing rubber ring 2's surface and the internal surface adhesion of O type circle 3 mainly utilize its elasticity and shrinkage can through waterproof area 6 and water-blocking area 7, produce different elastic change under the load of each difference, therefore sealing performance is very strong, can effectually avoid the phenomenon such as the component to appear leaking, can also the shock attenuation simultaneously, increased cable and lag 1's sealing performance and waterproof performance.

Furthermore, the waterproof belt 6 is a PO/PE co-extrusion film, the waterproof belt 7 is formed by compounding polyester fiber woven cloth and a high water absorption material, the waterproof belt has the function of water absorption expansion, and the waterproof belt 7 is used for power cables and communication optical cables, can reduce the permeation of water and moisture in the cables, prolongs the service life of the cables, and has ultrahigh sealing and waterproof performance.

It should be noted that the utility model is a waterproof cable accessory with good sealing performance, it is good to have the tear resistance through the EPT rubber layer 202, the elastic modulus is big, the tensile strength is high, the power frequency breakdown strength is high, and has better compatibility with the silicone oil, therefore, it is suitable for producing the stress cone with mechanical hold-down device products such as the high-pressure integral prefabricated intermediate joint main body and the sleeve type terminal, the GIS terminal, the assembled joint, etc., the service strength of the sealing rubber ring 2 is increased, the service life of the sealing rubber ring 2 is prolonged, through the arrangement of the silicone rubber layer 203, it has better weather resistance, hydrophobicity, elasticity, elongation, the laminating with the sealed cable is better, the sealing performance and the waterproof performance of the cable and the sealing rubber ring 2 are increased, the use requirement can not be satisfied, through the arrangement of the polymer material layer 201, the waterproof tape 7 is formed by compounding polyester fiber woven cloth and a high water absorption material, has the function of water absorption expansion, can reduce the water and moisture permeation of the cable and improve the service life of the cable when used for a power cable and a communication optical cable, has ultrahigh sealing and waterproof performances, and can reduce the water and moisture permeation of the cable and improve the working life of the cable through a PVC base material layer 4 and a PVC resin layer 401 The corrosion-resistant layer 402 and the oxidation-resistant layer 403 are arranged, so that the protective sleeve 1 has good acid and alkali resistance, wear resistance and flame resistance, can still keep good mechanical properties under severe conditions after being exposed to severe conditions for a long time, and has good corrosion resistance, the corrosion resistance and the chemical resistance of the protective sleeve 1 are improved, and the service life of the protective sleeve 1 is prolonged.

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

1. The utility model provides a waterproof cable accessories that leakproofness is good which characterized in that: including lag (1), the inner chamber of lag (1) is provided with sealed rubber ring (2), the inner chamber of sealed rubber ring (2) is provided with O type circle (3), lag (1) includes PVC substrate layer (4), the internal surface of PVC substrate layer (4) is provided with adhesive filler layer (5), the internal surface of adhesive filler layer (5) is provided with waterproof area (6), the internal surface of waterproof area (6) is provided with water blocking tape (7), sealed rubber ring (2) are including macromolecular material layer (201), the surface of macromolecular material layer (201) is provided with ethylene-propylene-diene monomer rubber layer (202), the surface of ethylene-propylene-diene monomer rubber layer (202) is provided with silicon rubber layer (203).

2. The waterproof cable accessory of claim 1, wherein: the PVC base material layer (4) comprises a PVC resin layer (401), a corrosion-resistant layer (402) is arranged on the surface of the PVC resin layer (401), and an oxidation-resistant layer (403) is arranged on the outer surface of the corrosion-resistant layer (402).

3. The waterproof cable accessory of claim 1, wherein: the thickness of the high polymer material layer (201) is the same as that of the ethylene propylene diene monomer rubber layer (202).

4. The waterproof cable accessory of claim 1, wherein: the thickness of the silicone rubber layer (203) is the same as that of the PVC resin layer (401).

5. The waterproof cable accessory of claim 1, wherein: the O-shaped ring (3) and the sealing rubber ring (2) are made of the same material, and the outer surface of the sealing rubber ring (2) is adhered to the inner surface of the O-shaped ring (3).

6. The waterproof cable accessory of claim 1, wherein: the waterproof belt (6) is a PO/PE co-extrusion film.