CN219303346U

CN219303346U - Compression-resistant glass fiber sleeve

Info

Publication number: CN219303346U
Application number: CN202320774723.1U
Authority: CN
Inventors: 何俊文; 石娜
Original assignee: Shenzhen Sunbow Insulation Materials Mfg Co ltd
Current assignee: Shenzhen Sunbow Insulation Materials Mfg Co ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-07-04
Anticipated expiration: 2033-03-30

Abstract

The application discloses a compression-resistant glass fiber sleeve, and relates to the technical field of glass fiber sleeves; the spiral plate is arranged between the outer glass fiber tube and the inner glass fiber tube; a filling layer filled in the cavity between the outer glass fiber tube and the inner glass fiber tube; the outer protective layer is arranged on the outer wall of the outer glass fiber tube; the inner protective layer is arranged on the inner wall of the inner glass fiber tube; the outer glass fiber tube, the inner glass fiber tube, the spiral plate and the filling layer form a complete glass fiber sleeve, the spiral plate is used for enhancing the overall compressive strength of the glass fiber sleeve, the filling layer is used for filling gaps between the outer glass fiber tube and the inner glass fiber tube, the compressive resistance of the glass fiber sleeve is enhanced, and the outer protective layer and the inner protective layer are used for protecting the inner surface and the outer surface of the glass fiber sleeve, so that the service life of the glass fiber sleeve is prolonged.

Description

Compression-resistant glass fiber sleeve

Technical Field

The application relates to the technical field of glass fiber bushings, in particular to a compression-resistant glass fiber bushing.

Background

The glass fiber insulating sleeve is mainly used for electrical insulating materials, and in modern industrial production, various cables are required to be laid in a large number on various production occasions such as equipment, automobiles and shipbuilding, and the cables are required to be insulated and high-temperature resistant in most states, so that corresponding sleeves are required to be sleeved on the cables to adapt to production and application requirements.

Most of the existing glass fiber bushings are composed of alkali-free glass fibers and organic silicon copolymer resin or polyurethane resin coated on the alkali-free glass fibers, so that the problem of low pressure resistance exists, when an underground cable is laid, the cable is easily damaged after being extruded with a surface for a long time, the inside is corroded, and the service life of the cable is affected.

Disclosure of Invention

The purpose of the present application is: for solving the poor problem of current glass fiber sleeve pipe compressive property, this application provides a compressive glass fiber sleeve pipe.

The application specifically adopts the following technical scheme for realizing the purposes:

a compression resistant fiberglass sleeve, comprising: the device comprises an outer glass fiber tube and an inner glass fiber tube, wherein a spiral plate is arranged between the outer glass fiber tube and the inner glass fiber tube; a filling layer filled in the cavity between the outer glass fiber tube and the inner glass fiber tube; the outer protective layer is arranged on the outer wall of the outer glass fiber tube; and the inner protective layer is arranged on the inner wall of the inner glass fiber tube.

Further, the spiral plate is provided with a plurality of connecting rods in an annular array along the axis direction.

Further, the spiral plate and the connecting rod are made of aerogel materials and integrally formed.

Further, the spiral plate is fixed with the outer glass fiber tube and the inner glass fiber tube by means of hot melting.

Further, the filling layer is made of asbestos materials.

Further, the outer protective layer comprises a polytetrafluoroethylene layer arranged on the outer glass fiber tube, and an alumina ceramic layer is arranged on the polytetrafluoroethylene layer.

Further, the inner protective layer comprises a chlorinated polyvinyl chloride layer arranged on the inner glass fiber pipe, and an epoxy resin layer is arranged on the chlorinated polyvinyl chloride layer.

The beneficial effects of this application are as follows:

the outer glass fiber tube, the inner glass fiber tube, the spiral plate and the filling layer form a complete glass fiber sleeve, the spiral plate is used for enhancing the overall compressive strength of the glass fiber sleeve through the additionally arranged spiral plate, the filling layer is used for filling gaps between the outer glass fiber tube and the inner glass fiber tube, so that the whole glass fiber sleeve is more compression-resistant, the compression resistance of the glass fiber sleeve is enhanced, and the outer protective layer and the inner protective layer are used for protecting the inner surface and the outer surface of the glass fiber sleeve through the arranged outer protective layer and the inner protective layer, so that the service life of the glass fiber sleeve is prolonged.

Drawings

FIG. 1 is a perspective view of the present application;

FIG. 2 is a perspective cross-sectional view of the present application;

FIG. 3 is a cross-sectional view of yet another perspective structure of the present application;

FIG. 4 is a perspective view of the screw plate and connecting rod of the present application;

FIG. 5 is an enlarged view of FIG. 3A of the present application;

reference numerals: 1. an outer fiberglass tube; 2. an inner glass fiber tube; 3. a spiral plate; 4. a filling layer; 5. an outer protective layer; 6. an inner protective layer; 7. a connecting rod; 501. a polytetrafluoroethylene layer; 502. an alumina ceramic layer; 601. a chlorinated polyvinyl chloride layer; 602. an epoxy resin layer.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

As shown in fig. 1-5, one embodiment of the present application provides a compression resistant fiberglass sleeve comprising: an outer glass fiber tube 1 and an inner glass fiber tube 2, wherein a spiral plate 3 is arranged between the outer glass fiber tube 1 and the inner glass fiber tube 2; a filling layer 4 filled in the cavity between the outer glass fiber tube 1 and the inner glass fiber tube 2; an outer protective layer 5 arranged on the outer wall of the outer glass fiber tube 1; the inner protection layer 6 is arranged on the inner wall of the inner glass fiber tube 2, the outer glass fiber tube 1, the inner glass fiber tube 2, the spiral plate 3 and the filling layer 4 form a complete glass fiber sleeve, the outer glass fiber tube 1 and the inner glass fiber tube 2 play roles in insulation, high temperature resistance and the like, the spiral plate 3 is used for enhancing the integral compressive strength of the glass fiber sleeve (when one point of the glass fiber sleeve is extruded, the extrusion force can be conducted to the spiral plate 3 corresponding to the point of the glass fiber sleeve, the extrusion force is affected, the spiral structure of the spiral plate 3 can generate circumferential tensile stress so as to share the compression force of the compression point of the glass fiber sleeve), the filling layer 4 is used for filling a gap between the outer glass fiber tube 1 and the inner glass fiber tube 2, so that the whole glass fiber sleeve is more compression-resistant, the compression resistance of the glass fiber sleeve is enhanced, the arranged inner protection layer 6 is used for protecting the inner surface of the glass fiber sleeve through the arranged outer protection layer 5, and the service life of the glass fiber sleeve is prolonged.

As shown in fig. 4 and 5, in some embodiments, the spiral plate 3 is provided with a plurality of connection rods 7 in an annular array along the axial direction thereof, and the plurality of connection rods 7 are used for improving the tensile strength of the spiral plate 3, thereby improving the compressive and tensile strength of the whole glass fiber sleeve.

In some embodiments, as shown in fig. 4, the spiral plate 3 and the connecting rod 7 are made of aerogel materials and are integrally formed, the aerogel is a nano porous solid material formed by replacing liquid phase in gel with gas in a certain drying mode through a sol-gel method, the nano porous solid material is very firm and durable, can bear pressure equivalent to thousands times of the self mass, can effectively support the accommodating cavity, thus improving the integral compression resistance, torsion resistance and bending resistance of the glass fiber sleeve, and meanwhile, the aerogel is light in weight, is the lightest solid in the world, can maximally lighten the weight of the glass fiber sleeve, has low thermal conductivity and refractive index, has better insulating capability and further improves the insulating property of the glass fiber sleeve.

As shown in fig. 5, in some embodiments, the spiral plate 3 is fixed with the outer glass fiber tube 1 and the inner glass fiber tube 2 by means of hot melting, and the connection strength among the spiral plate 3, the outer glass fiber tube 1 and the inner glass fiber tube 2 is higher by means of hot melting, so that the overall stability and the compression resistance of the glass fiber sleeve are improved.

In some embodiments, as shown in fig. 5, the filling layer 4 is made of asbestos, which is made of fiber bundles composed of very long and thin fibers that can be separated from each other, and the asbestos has high fire resistance, electrical insulation and thermal insulation, and is used for filling the gap between the outer glass fiber tube 1 and the inner glass fiber tube 2, enhancing the compression resistance of the glass fiber bushing, and ensuring the insulation of the entire glass fiber bushing.

As shown in fig. 2 and 5, in some embodiments, the outer protective layer 5 includes a polytetrafluoroethylene layer 501 disposed on the outer glass fiber tube 1, an alumina ceramic layer 502 is disposed on the polytetrafluoroethylene layer 501, polytetrafluoroethylene is a polymer prepared by polymerizing tetrafluoroethylene as a monomer, has excellent chemical stability, has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, is almost insoluble in all solvents, has electrical insulation property and good aging resistance, can effectively perform the function of corrosion resistance on the outer surface of the glass fiber tube, and has the advantages of high hardness and excellent wear resistance, so that the overall strength and wear resistance of the glass fiber tube can be further improved.

As shown in fig. 2 and 5, in some embodiments, the inner protective layer 6 includes a chlorinated polyvinyl chloride layer 601 disposed on the inner glass fiber tube 2, an epoxy resin layer 602 is disposed on the chlorinated polyvinyl chloride layer 601, and the chlorinated polyvinyl chloride is a product of further chlorination modification of polyvinyl chloride, which has corrosion resistance, heat resistance, solubility and flame retardance, and can effectively improve the flame retardance of the inner glass fiber tube 2, so that the overall flame retardance of the glass fiber sleeve is improved, when the glass fiber sleeve is sleeved on a cable, a certain friction force is generated between the inner wall of the inner glass fiber tube 2 and the outer surface of the cable, the epoxy resin has good physical and chemical properties, small deformation shrinkage rate, good product dimensional stability, high hardness, good wear resistance and better flexibility, and can effectively improve the wear resistance of the inner glass fiber tube 2, so that the inner glass fiber tube 2 is not easy to wear and damage when the cable is sleeved, and the inner glass fiber tube 2 is protected.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compression resistant fiberglass sleeve, comprising:

an outer glass fiber tube (1) and an inner glass fiber tube (2), wherein a spiral plate (3) is arranged between the outer glass fiber tube (1) and the inner glass fiber tube (2);

a filling layer (4) which fills the cavity between the outer glass fiber tube (1) and the inner glass fiber tube (2);

an outer protective layer (5) arranged on the outer wall of the outer glass fiber tube (1);

and the inner protective layer (6) is arranged on the inner wall of the inner glass fiber tube (2).

2. A compression resistant fiberglass sleeve according to claim 1, characterized in that the spiral plate (3) is provided with a number of connecting rods (7) in an annular array along its axis.

3. A compression resistant fiberglass sleeve according to claim 2, wherein the spiral plate (3) and the connecting rod (7) are both formed of aerogel material and of integral construction.

4. A compression resistant fiberglass sleeve as claimed in claim 1, wherein the spiral plate (3) is secured to the outer fiberglass tube (1) and the inner fiberglass tube (2) by means of heat fusion.

5. A compression resistant fiberglass sleeve according to claim 1, wherein the filler layer (4) is of asbestos material.

6. A compression resistant fiberglass sleeve as claimed in claim 1, wherein the outer protective layer (5) comprises a polytetrafluoroethylene layer (501) disposed on the outer fiberglass tube (1), the polytetrafluoroethylene layer (501) having an alumina ceramic layer (502) disposed thereon.

7. A compression resistant glass fibre sleeve according to claim 1, characterised in that the inner protective layer (6) comprises a chlorinated polyvinyl chloride layer (601) arranged on the inner glass fibre tube (2), the chlorinated polyvinyl chloride layer (601) being provided with an epoxy layer (602).