CN210467402U - High-performance fire-resistant cable - Google Patents

Abstract

The utility model relates to a high performance fire resisting cable belongs to fire resisting cable technical field, and it includes the protective layer and is located the intraformational cable core of protection, the protective layer has set gradually outer jacket, asbestos layer, mica layer and internal stay layer from outer to interior, one side cladding that the outer jacket deviates from the asbestos layer has fire-resistant basic unit, still be provided with the fire-resistant position sleeve of location cable core in the protective layer, still be provided with the carriage between fire-resistant position sleeve and the internal stay layer, be provided with the locating clip in the position sleeve, the cable core is located the locating clip, the position that the position sleeve corresponds the locating clip surely is equipped with the installation breach, the utility model discloses cable with fire resisting property makes the cable core in the cable be difficult for appearing the effect that the short circuit broken circuit even.

Description

High-performance fire-resistant cable

Technical Field

The utility model belongs to the technical field of the fire resisting cable technique and specifically relates to a high performance fire resisting cable is related to.

Background

The cable is one of cables, and the cable is a general term for optical cables, electric cables and the like. The cable has many uses, and is mainly used for controlling installation, connecting equipment, transmitting power and the like, and the installation needs special care because the cable is electrified. The main process of the wire and the cable is as follows: the three processes of drawing, stranding and coating are completed, the more complicated the model specification is, the higher the repeatability is. For a multi-core cable, in order to ensure the degree of formation and reduce the appearance of the cable, the multi-core cable generally needs to be twisted into a round shape.

Because the cable is electrified, when a fire disaster happens in some places, the protective layer on the outer layer of the cable can be burnt, and the situation that the cable core inside is short-circuited or even broken is caused.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a high performance fire resisting cable, its cable that has fire resistance makes the cable core in the cable be difficult for appearing the effect that the short circuit opened circuit even.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a high performance fire resisting cable, includes the protective layer and is located the intraformational cable core of protective layer, the protective layer has set gradually outer jacket, asbestos layer, mica layer and interior layer of propping from outer to interior, one side cladding that the outer jacket deviates from the asbestos layer has fire-resistant basic unit, still be provided with the fire-resistant position sleeve of location cable core in the protective layer.

Through adopting above-mentioned technical scheme, the fire-resistant basic unit of cladding is provided with asbestos layer and mica layer as first layer flame retardant coating on the outer jacket between outer jacket and internal stay layer, and asbestos layer and mica layer also play fire-resistant effect to increase holistic fire behavior, and be provided with fire-resistant position sleeve outside the cable core, not only can play the effect of fixing a position the cable core through fire-resistant position sleeve, still play fire-resistant effect, further protect the cable core.

The utility model discloses further set up to: the fire-resistant base layer is made of phenolic resin materials.

By adopting the technical scheme, the phenolic resin material has good fire resistance, so that the fire-resistant base layer coated outside the outer protective layer has good fire resistance.

The utility model discloses further set up to: the inner supporting layer is made of polyvinyl chloride materials.

Through adopting above-mentioned technical scheme, the effect of supporting the location is not only played in the internal stay layer, owing to the polyvinyl chloride material that adopts, makes whole inner liner layer also possess good fire resistance.

The utility model discloses further set up to: and a supporting frame is also arranged between the fire-resistant positioning sleeve and the inner supporting layer.

Through adopting above-mentioned technical scheme, the carriage separates fire-resistant position sleeve and interior supporting layer to the carriage plays the effect of support, makes inside the difficult phenomenon that the deaf collapses of receiving the gravity of appearing of whole cable.

The utility model discloses further set up to: a filling cavity is hollowed in the supporting frame, and refractory asbestos is filled in the filling cavity.

By adopting the technical scheme, the filling cavity is hollowed in the supporting frame, so that the whole supporting frame has good toughness; refractory asbestos is filled in the filling cavity, so that the supporting frame has the refractory capability, and the overall refractory performance is further improved.

The utility model discloses further set up to: the cable core is arranged in the positioning clamp, and the positioning sleeve is provided with an installation crevasse corresponding to the positioning clamp.

Through adopting above-mentioned technical scheme, set up the installation crevasse on the position sleeve, can conveniently press from both sides the location and install into in the position sleeve to the cable core can conveniently install into the position and press from both sides, can be convenient change when needing to change inside cable core.

The utility model discloses further set up to: and an insulating rubber sheet is coated outside the cable core, and heat dissipation gel is arranged between the positioning clamp and the insulating rubber sheet.

Through adopting above-mentioned technical scheme, the cable is in the use, and the cable core can produce certain heat, can influence the life-span of whole cable when having the cable core high temperature when the high load transmission of electricity appears in the cable, carries out the heat dissipation through the heat dissipation gel and handles, makes the temperature of cable core be difficult for too high.

The utility model discloses further set up to: a copper wire shielding layer is arranged between the supporting frame and the inner supporting layer and wound on the supporting frame.

Through adopting above-mentioned technical scheme, play shielded effect around establishing the copper wire shielding layer on the carriage for inside cable core is difficult for receiving external influence when carrying electric power.

The utility model discloses further set up to: and the fire-resistant base layer is coated with thermochromic paint.

Through adopting above-mentioned technical scheme, when the conflagration breaing out, the temperature can sharply rise, and the paint that discolours when being heated outside the fire-resistant substrate can become striking colour when being heated, embodies the position of cable, is difficult for appearing personnel and touches the condition that the cable leads to electrocuteeing.

To sum up, the utility model discloses a beneficial technological effect does:

1. the protective layer is divided into a multilayer structure from outside to inside, and the asbestos layer and the mica layer in the protective layer are flame-retardant layers, so that the protective layer has good flame-retardant performance;

2. the support frame is internally supported, so that the integral cable is not easy to deaf and pull, and the support frame is filled with refractory asbestos, so that the integral fire resistance is further improved;

3. the cable core and the positioning clamp can be conveniently installed in the fire-resistant positioning sleeve by arranging the installation crevasses on the fire-resistant positioning sleeve, so that the internal cable core can be conveniently checked and replaced, and the heat dissipation gel arranged in the positioning clamp can dissipate heat, so that the service life of the whole cable core is prolonged;

4. through scribble the paint that changes colour by heat outside fire-resistant basic unit for when the conflagration appearing, the paint that changes colour by heat reflects the position of cable, has reduced the condition that the mistake touched.

Drawings

Fig. 1 is a schematic sectional view showing the overall structure of the cable.

Fig. 2 is a schematic view showing a partial structure of a supporting frame coated with a copper wire shielding layer.

Fig. 3 is a schematic sectional view showing the internal structure of the positioning sleeve.

In the figure, 1, a protective layer; 11. an outer jacket; 12. an asbestos layer; 13. a mica layer; 14. an inner support layer; 2. a refractory base layer; 3. a positioning sleeve; 31. positioning clips; 32. installing a crevasse; 4. a cable core; 41. insulating rubber sheets; 5. a support frame; 51. filling the cavity; 52. refractory asbestos; 6. heat dissipation gel; 7. and a copper wire shielding layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a high performance fire-resistant cable, including protective layer 1, the carriage 5 that is located protective layer 1, the fire-resistant position sleeve 3 that is located carriage 5 and the cable core 4 that is located the carriage 3, protective layer 1 has set gradually outer jacket 11, asbestos layer 12, mica layer 13 and interior supporting layer 14 from outside to inside, it has fire-resistant basic unit 2 to wrap in one side that outer jacket 11 deviates from asbestos layer 12, fire-resistant basic unit 2 adopts the phenolic resin material to make, phenolic resin has certain fire resistance, play preliminary fire-resistant guard action;

the asbestos layer 12 and the mica layer 13 can both play a role of fire resistance, further play a role of fire resistance protection, and play a role of protection when the outer protective layer 11 is damaged by heat, the inner supporting layer 14 is made of polyvinyl chloride materials, the inner supporting layer 14 also has certain fire resistance, and the protective layer 1 is made of multiple layers of fire-resistant materials, so that the whole protective layer 1 is not easy to burn and melt quickly, and a good protective effect is achieved;

the fire-resistant base layer 2 is coated with heated color-changing paint (not shown in the figure), and the color can be changed to achieve a striking effect when the fire-resistant base layer is heated, so that the position of the cable is displayed, personnel are not easy to collide the cable, and the possibility of electric shock caused by touching the cable is reduced.

Referring to fig. 1 and 2, the carriage 5 is between protective layer 1 and position sleeve 3, play the effect of supporting and further protection, the fretwork has the chamber 51 of filling on the carriage 5, it has fire-resistant asbestos 52 to fill in the chamber 51 of filling, the chamber 51 shape of filling here is the rhombus, the effect of protection is played to fire-resistant asbestos 52 in filling the chamber 51, make carriage 5 possess certain fire resistance, thereby the protection is located inside position sleeve 3, after the protective sheath is burnt, under carriage 5's protection, flame is difficult for burning to position sleeve 3 fast.

Referring to fig. 1 and 2, a copper wire shielding layer 7 is arranged between the supporting frame 5 and the inner supporting layer 14, the copper wire shielding layer 7 is arranged on one side, deviating from the positioning sleeve 3, of the supporting frame 5 in a winding mode, the influence on cable power transmission caused by the external existence of the shielding is achieved through the copper wire shielding layer 7, and the external influence on the cable power transmission process is reduced.

Referring to fig. 3, be provided with four locating clip 31 along the circumferencial direction array in the position sleeve 3, the position that position sleeve 3 corresponds the locating clip 31 opening part is surely equipped with installation crevasse 32, can conveniently plug in position sleeve 3 internal fixation with locating clip 31 through installation crevasse 32, and can conveniently plug cable core 4 to the locating clip 31 in through installation crevasse 32, fix a position cable core 4 through locating clip 31, so that cable core 4 is difficult for appearing the phenomenon of displacement in position sleeve 3, and locating clip 31 centre gripping cable core 4 can conveniently change cable core 4, it has insulating rubber 41 to cover outside cable core 4, protection through insulating film, the difficult condition that appears the electric leakage.

Referring to fig. 3, the heat dissipation gel 6 is disposed between the positioning clip 31 and the insulating rubber sheet 41, heat is generated during power transmission of the cable core 4 during operation of the cable, and the heat generated by the cable core 4 is absorbed by the heat dissipation gel 6 during heat generation, so as to reduce the temperature of the cable core 4.

The implementation principle of the embodiment is as follows: the cable position is displayed when the cable is burnt by fire through the thermochromic paint coated outside the fire-resistant base layer 2, so that the possibility of electric shock caused by personnel touching the cable is reduced; the protective layer 1 is protected by adopting a plurality of layers of refractory materials from outside to inside, the overall fire resistance is improved, the supporting frame 5 between the protective layer 1 and the positioning sleeve 3 plays a role in further protection, so that the overall fire resistance is further improved, the positioning sleeve 3 plays a role in positioning the cable core 4, the cable is not easy to shift under the action of the positioning clamp 31, and the cable core 4 is convenient to replace; the possibility that the cable is influenced by the outside is reduced under the action of the copper wire shielding layer 7; the utility model discloses a wholly possess high fire resistance to make the difficult condition that appears the short circuit or open circuit of cable.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (9)

1. The utility model provides a high performance fire resisting cable, includes protective layer (1) and cable core (4) that are located protective layer (1), its characterized in that: protective layer (1) has set gradually outer jacket (11), asbestos layer (12), mica layer (13) and internal stay layer (14) from outer to interior, one side cladding that outer jacket (11) deviates from asbestos layer (12) has fire-resistant basic unit (2), still be provided with fire-resistant position sleeve (3) of location cable core (4) in protective layer (1).

2. The high performance fire resistant cable of claim 1, wherein: the fire-resistant base layer (2) is made of phenolic resin materials.

3. The high performance fire resistant cable of claim 2, wherein: the inner supporting layer (14) is made of polyvinyl chloride materials.

4. The high performance fire resistant cable of claim 2, wherein: and a supporting frame (5) is also arranged between the refractory positioning sleeve (3) and the inner supporting layer (14).

5. The high performance fire resistant cable of claim 4, wherein: a filling cavity (51) is hollowed in the supporting frame (5), and refractory asbestos (52) is filled in the filling cavity (51).

6. The high performance fire resistant cable of claim 5, wherein: the cable is characterized in that a positioning clamp (31) is arranged in the positioning sleeve (3), the cable core (4) is located in the positioning clamp (31), and a mounting crevasse (32) is arranged at the position, corresponding to the positioning clamp (31), of the positioning sleeve (3).

7. The high performance fire resistant cable of claim 6, wherein: the cable core (4) is coated with an insulating rubber sheet (41), and a heat dissipation gel (6) is arranged between the positioning clamp (31) and the insulating rubber sheet (41).

8. The high performance fire resistant cable of claim 7, wherein: be provided with copper wire shielding layer (7) between carriage (5) and interior supporting layer (14), copper wire shielding layer (7) are around establishing on carriage (5).

9. The high performance fire resistant cable of claim 1, wherein: the fire-resistant base layer (2) is coated with thermochromic paint.

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