CN216287722U - Metal band shielding cable with tenon-and-mortise structure - Google Patents

Abstract

The utility model discloses a metal band shielding cable with a mortise and tenon structure, which has the technical scheme that: the method comprises the following steps: the cable comprises an inner sheath, a cable core and a fireproof layer, wherein the inner circle wall surface of the inner sheath is movably sleeved with the cable core, and the outer circle wall surface of the inner sheath is movably sleeved with the fireproof layer; the metal shielding strips are arranged on the outer circle wall surface of the fireproof layer, and a first filling layer is arranged between the metal shielding strips and the fireproof layer; when using, the accessible cup joints two tenons in the inside of tongue-and-groove, make a plurality of metal shielding area end to end connection form a whole, realize shielding external disturbance and resistance to compression and prevent the impaired effect of cable core, through setting up the tenon post, cup joint the inside at the tongue-and-groove when the tenon, a plurality of metal shielding area end to end connection forms a whole back, the accessible inserts first mortise hole with the tenon post and passes the second mortise hole, make stable the linking together in a plurality of metal shielding area, avoid interlock department dislocation, the stability of metal shielding area connection is increased.

Description

Metal band shielding cable with tenon-and-mortise structure

Technical Field

The utility model relates to the technical field of cable metal belts, in particular to a metal belt shielding cable with a mortise and tenon structure.

Background

According to the application number: CN201920900174.1, a chinese patent discloses that a metal band shielded high-voltage power cable with a mortise and tenon structure comprises eight parts, namely, a conductor shield, an insulator, an insulation shield, a semi-conductive buffer layer, a metal band shield with a mortise and tenon structure, an aluminum-plastic comprehensive waterproof layer, and an outer sheath; the metal band shield with the mortise and tenon structure comprises a circular tenon, a tenon neck, a circular mortise and a tenon buckle; the metal band shielding of the tenon-and-mortise structure is formed by tightly winding a plurality of metal bands, the round tenon head and the round mortise of two adjacent metal band shielding of the tenon-and-mortise structure are occluded with each other, the tenon buckle and the tenon neck are buckled to form a whole, and the metal band shielding, the steel band armoring and the steel wire armoring have three functions of metal shielding, steel wire armoring, and have more excellent bending performance and electrical conduction performance between insulating shielding, more compact structure and lower cost compared with the existing high-voltage cable corrugated aluminum sleeve metal shielding.

However, the metal band shielding high-voltage power cable with the mortise and tenon structure still has some defects, such as: the round tenon and the round mortise of two adjacent tenon fourth of twelve earthly branches structure metal band shielding interlock mutually, the tenon is detained mutually with the tenon neck and is formed a whole back, and the cable is when receiving the extrusion, and two adjacent tenon fourth of twelve earthly branches metal band interlock departments dislocation can appear, leads to the unable normal use's of metal band the condition to take place, for solving above-mentioned problem, we provide a tenon fourth of twelve earthly branches structure metal band shielded cable.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems mentioned in the background technology, the utility model aims to provide a metal band shielded cable with a mortise and tenon structure so as to solve the problems mentioned in the background technology.

The technical purpose of the utility model is realized by the following technical scheme:

a metal band shielding cable with a tenon-and-mortise structure comprises: the cable comprises an inner sheath, a cable core and a fireproof layer, wherein the inner circle wall surface of the inner sheath is movably sleeved with the cable core, and the outer circle wall surface of the inner sheath is movably sleeved with the fireproof layer; the metal shielding strips are arranged on the outer circle wall surface of the fireproof layer, and a first filling layer is arranged between the metal shielding strips and the fireproof layer; the fixing assembly is arranged on one side of the metal shielding belt and used for connecting the metal shielding belt.

Through adopting above-mentioned technical scheme, through setting up the flame retardant coating, the flame retardant coating is the asbestos layer, has the effect that resistant chemistry prevents the hot erosion, increases the fire behavior of this cable, through setting up fixed subassembly for connect a plurality of metallic shield area, when avoiding conventional tenon fourth of the twelve earthly branches structure gold cable to receive the extrusion, two adjacent tenon fourth of the twelve earthly branches strap interlock departments dislocation can appear, lead to the unable normal use's of strap the condition to take place.

Preferably, the fixing assembly includes: the metal shielding belt comprises two tenons, wherein the two tenons are fixedly installed on one side of the metal shielding belt, two mortises are formed in the other side of the metal shielding belt, a first mortise is formed in the top surface of each tenon, a second mortise is formed in the bottom surface of each mortise, the tenons are movably sleeved inside the mortises, and the positions of the first mortise and the second mortise are corresponding.

Through adopting above-mentioned technical scheme, through setting up the tenon, when using, the accessible cup joints two tenons in the inside of tongue-and-groove, makes the head-to-tail connection of a plurality of metal shielding area form a whole, realizes shielding external disturbance and resistance to compression and prevents the impaired effect of cable core.

Preferably, the fixing assembly further comprises: the tenon column is movably sleeved inside the first tenon hole, and the bottom end of the tenon column penetrates through the inside of the second tenon hole and is movably sleeved inside the other first tenon hole.

Through adopting above-mentioned technical scheme, through setting up the tenon post, cup joint in the inside of tongue-and-groove when the tenon, a plurality of metal shielding area end to end connection forms a whole back, and the accessible inserts first mortise hole with the tenon post and passes the second mortise hole, makes the stable connection in a plurality of metal shielding area together, avoids interlock department dislocation, increases the stability that metal shielding area connects.

Preferably, the outer circle wall surface of the metal shielding belt is movably sleeved with a waterproof layer, and the outer circle wall surface of the waterproof layer is movably sleeved with an outer sheath.

Through adopting above-mentioned technical scheme, through setting up the waterproof layer, the waterproof layer is non-woven fabrics water-blocking tape, has corrosion resistance and prevents the infiltration effect of water and moisture.

Preferably, the inner circular wall surface of the outer sheath is fixedly provided with a plurality of supporting blocks, the supporting blocks are attached to the waterproof layer, and a second filling layer is arranged between the outer sheath and the waterproof layer.

Through adopting above-mentioned technical scheme, through setting up the supporting shoe, realize the effect of oversheath and waterproof layer interval installation, increase the crushing resistance of this cable.

Preferably, the top surface of the supporting block is provided with a mounting hole, and the inner circle wall surface of the mounting hole is movably sleeved with a steel wire.

Through adopting above-mentioned technical scheme, through setting up the steel wire line, can effectually avoid this cable to receive the extrusion and fracture, increase the intensity of this cable.

In summary, the utility model mainly has the following beneficial effects:

through setting up the tenon, when using, the accessible cup joints two tenons in the inside of tongue-and-groove, make a plurality of metal shielding area end to end connect and form a whole, realize shielding external disturbance and resistance to compression and prevent the impaired effect of cable core, through setting up the tenon post, cup joint the inside at the tongue-and-groove when the tenon, a plurality of metal shielding area end to end connection forms a whole back, the accessible inserts first mortise with the tenon post and passes the second mortise, make stable the linking together in a plurality of metal shielding area, avoid interlock department dislocation, the stability of metal shielding area connection is increased.

Through setting up the waterproof layer, the waterproof layer is the non-woven fabrics water-blocking tape, has corrosion resistance and prevents the infiltration effect of water and moisture, through setting up the supporting shoe, realizes the effect of oversheath and waterproof layer interval installation, increases the crushing resistance of this cable, through setting up the steel wire line, can effectually avoid this cable to receive the extrusion and fracture, increases the intensity of this cable.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of the tenon structure of the present invention;

fig. 3 is a partially enlarged schematic view of a in fig. 1.

Reference numerals: 1. an inner sheath; 2. a cable core; 3. a fire barrier layer; 4. a metal shielding tape; 5. a first filling layer; 6. a tenon; 7. mortises; 8. a first mortise hole; 9. a second mortise hole; 10. a tenon column; 11. a waterproof layer; 12. an outer sheath; 13. a support block; 14. a second filling layer; 15. mounting holes; 16. a steel wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, a metal tape shielded cable of a mortise and tenon structure includes: inner sheath 1, the cable core 2 has been cup jointed in the activity of the interior circle wall of inner sheath 1, flame retardant coating 3 has been cup jointed in the activity of the excircle wall of inner sheath 1, through setting up flame retardant coating 3, flame retardant coating 3 is the asbestos layer, the effect of resistant chemistry preventing hot erosion has, increase the fire behavior of this cable, the excircle wall of flame retardant coating 3 is provided with a plurality of metallic shield area 4, be provided with first filling layer 5 between metallic shield area 4 and the flame retardant coating 3, one side of metallic shield area 4 is provided with fixed subassembly, be used for connecting a plurality of metallic shield area 4, through setting up fixed subassembly, be used for connecting a plurality of metallic shield area 4, when avoiding conventional tenon fourth of the twelve earthly branches structure gold cable to receive the extrusion, two adjacent tenon fourth of the twelve earthly branches strap interlock department dislocation can appear, lead to the unable normal use condition of strap to take place, fixed subassembly includes: two tenons 6, the equal fixed mounting of two tenons 6 is in one side of metal shielding area 4, two mortises 7 have been seted up to the opposite side of metal shielding area 4, first mortise 8 has been seted up to the top surface of tenon 6, second mortise 9 has been seted up to the bottom surface of mortise 7, the inside at mortise 7 is cup jointed in the activity of tenon 6, first mortise 8 is corresponding with the position of second mortise 9, through setting up tenon 6, when using, the accessible cup joints two tenons 6 in the inside of mortise 7, make 4 end to end connections in a plurality of metal shielding area form a whole, realize shielding external disturbance and resistance to compression and prevent the impaired effect of cable core 2.

Referring to fig. 1 and 2 and 3, the fixing assembly further includes: tenon post 10, tenon post 10 activity cup joints the inside at first mortise 8, the inside activity that second mortise 9 was passed to tenon post 10 bottom cup joints the inside at another first mortise 8, through setting up tenon post 10, cup joint the inside at tongue-and-groove 7 when tenon 6, a plurality of metal shielding area 4 end-to-end connection forms a whole back, the accessible inserts first mortise 8 with tenon post 10 and passes second mortise 9, make stable the linking together of a plurality of metal shielding area 4, avoid interlock department dislocation, increase the stability that metal shielding area 4 connects, waterproof layer 11 has been cup jointed in the activity of metal shielding area 4's excircle wall, oversheath 12 has been cup jointed in the activity of waterproof layer 11's excircle wall, through setting up waterproof layer 11, waterproof layer 11 is the non-woven fabrics water-blocking area, have corrosion resistance and prevent the effect of water and moisture.

Referring to fig. 1 and 3, a plurality of supporting blocks 13 are fixedly installed on the inner circular wall surface of the outer sheath 12, the supporting blocks 13 are arranged, the effect of interval installation of the outer sheath 12 and the waterproof layer 11 is achieved, the pressure resistance of the cable is improved, the supporting blocks 13 are attached to the waterproof layer 11, a second filling layer 14 is arranged between the outer sheath 12 and the waterproof layer 11, a mounting hole 15 is formed in the top surface of each supporting block 13, a steel wire 16 is movably sleeved on the inner circular wall surface of the mounting hole 15, and by arranging the steel wire 16, the cable can be effectively prevented from being broken due to extrusion, and the strength of the cable is improved.

The working principle is as follows: referring to fig. 1, 2 and 3, by arranging the fireproof layer 3, the fireproof layer 3 is an asbestos layer, which has the effect of chemical resistance and thermal corrosion resistance, and increasing the fireproof performance of the cable, by arranging the tenons 6, when in use, two tenons 6 can be sleeved inside the mortise 7, so that a plurality of metal shielding belts 4 can be connected end to form a whole, thereby realizing the effect of shielding external interference and resisting pressure to prevent the cable core 2 from being damaged, by arranging the tenon columns 10, when the tenons 6 are sleeved inside the mortise 7, and a plurality of metal shielding belts 4 are connected end to form a whole, by inserting the tenon columns 10 into the first tenon holes 8 and passing through the second tenon holes 9, so that a plurality of metal shielding belts 4 are stably connected together in a staggered manner, thereby avoiding the occlusion, increasing the connection stability of the metal shielding belts 4, by arranging the waterproof layer 11, the waterproof layer 11 is a water blocking belt, have corrosion resistance and prevent the infiltration effect of water and moisture, through setting up supporting shoe 13, realize the effect of oversheath 12 and waterproof layer 11 interval installation, increase the crushing resistance of this cable, through setting up steel wire 16, can effectually avoid this cable to receive the extrusion and fracture, increase the intensity of this 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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a metal band shielded cable of tenon fourth of twelve earthly branches structure which characterized in that includes:

the cable comprises an inner sheath (1), wherein a cable core (2) is movably sleeved on the inner circle wall surface of the inner sheath (1), and a fireproof layer (3) is movably sleeved on the outer circle wall surface of the inner sheath (1);

the fireproof layer is characterized by comprising a plurality of metal shielding strips (4), wherein the plurality of metal shielding strips (4) are all arranged on the excircle wall surface of the fireproof layer (3), and a first filling layer (5) is arranged between each metal shielding strip (4) and the fireproof layer (3);

the fixing assembly is arranged on one side of the metal shielding belt (4) and used for connecting the metal shielding belt (4).

2. The metal tape shielded cable with tenon-and-mortise structure according to claim 1, wherein the fixing member comprises:

two tenons (6), two equal fixed mounting of tenon (6) is in one side of metal shielding area (4), two tongue-and-groove (7) have been seted up to the opposite side of metal shielding area (4), first mortise (8) have been seted up to the top surface of tenon (6), second mortise (9) have been seted up to the bottom surface of tongue-and-groove (7), tenon (6) activity is cup jointed the inside of tongue-and-groove (7), first mortise (8) with the position of second mortise (9) is corresponding.

3. The metal tape shielded cable with tenon-and-mortise structure according to claim 2, wherein the fixing member further comprises:

the tenon column (10), tenon column (10) activity cup joints the inside in first mortise hole (8), tenon column (10) bottom passes the inside activity of second mortise hole (9) cup joints the inside in another first mortise hole (8).

4. The metal band shielding cable with the tenon-and-mortise structure according to claim 1, wherein a waterproof layer (11) is movably sleeved on the outer circumferential wall surface of the metal shielding band (4), and an outer sheath (12) is movably sleeved on the outer circumferential wall surface of the waterproof layer (11).

5. The metal band shielded cable with the mortise and tenon structure according to claim 4, wherein a plurality of supporting blocks (13) are fixedly installed on the inner circular wall surface of the outer sheath (12), the supporting blocks (13) are attached to the waterproof layer (11), and a second filling layer (14) is arranged between the outer sheath (12) and the waterproof layer (11).

6. The metal band shielding cable with the tenon-and-mortise structure according to claim 5, wherein a mounting hole (15) is formed in the top surface of the supporting block (13), and a steel wire (16) is movably sleeved on the inner circular wall surface of the mounting hole (15).

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