CN213583202U

CN213583202U - Compression-resistant fireproof copper-core wire cable

Info

Publication number: CN213583202U
Application number: CN202023232242.3U
Authority: CN
Inventors: 陈桂涛; 陈桂德; 陈贵丰; 曾旭东
Original assignee: Guangdong Wuyang Industrial Development Co ltd
Current assignee: Guangdong Wuyang Industrial Development Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-06-29
Anticipated expiration: 2030-12-28

Abstract

The utility model discloses a compression-resistant fireproof copper core wire cable, which comprises a cable body, wherein four same compression-resistant tows are arranged in a square shape in an inner cavity of a shell, the compression-resistant tows are formed by twisting a plurality of metal wires and are contacted with each other to form a diamond-shaped cavity, a buffer block is clamped in the diamond-shaped cavity, an inner core is arranged in the buffer block, the compression damage to the inner core caused by external pressure is resisted by mutual extrusion between the compression-resistant tows, the inner core is protected in the middle diamond-shaped cavity, the compression resistance of the cable is effectively improved, an annular air bag, a heat insulation layer, a tin foil paper tube and a shell are sequentially arranged on the outer wall of an inner shell of the shell, the interior of the annular air bag is filled with flame-retardant gases such as nitrogen, the tin foil paper tube has good fire insulation capacity, the heat insulation layer of a polyurethane material is matched, the cable can be prevented from being, the fire-proof capability of the cable is improved.

Description

Compression-resistant fireproof copper-core wire cable

Technical Field

The utility model relates to the technical field of cables, specifically a resistance to compression fire prevention copper core wire and cable.

Background

The power cable is used for transmitting and distributing electric energy, and is commonly used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and power transmission lines under river-crossing seawater. In the power lines, the cable is increasing in specific gravity. Power cables are cable products used in the trunk lines of power systems to transmit and distribute high power electrical energy, including various voltage classes, 1-500KV and above, and various insulated power cables.

However, the existing power cable is not very pressure-resistant, and after the cable buried and distributed underground in the initial stage of engineering construction is rolled by heavy and large vehicles, the internal conductive core is broken; moreover, most of the existing power cables are polyethylene plastic outer casings, the fireproof capability of the existing power cables is weak, and the cables are easily burnt once suffering from high-temperature fire.

Therefore, the pressure-resistant fireproof copper-core wire and cable is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistance to compression fire prevention copper core wire and cable, the inner chamber at the shell is the mouth style of calligraphy and sets up four the same resistance to compression tows, and the resistance to compression tows is twisted by many wires and forms, utilize resistance to compression tows to contact each other and form the rhombus chamber, at rhombus intracavity portion block buffer block, the inner core sets up inside the buffer block, utilize mutual extrusion between the resistance to compression tows to resist the extrusion injury that external pressure caused to the inner core, and set up the shell into having the inner shell, annular gasbag, the insulating layer, the multilayer structure of tinfoil fiber container and shell, thereby the problem that provides in the above-mentioned background has been solved.

In order to achieve the above object, the utility model provides a following technical scheme: a compression-resistant fireproof copper core wire cable comprises a cable body, wherein the cable body comprises a shell sleeve, a first compression-resistant tow, a second compression-resistant tow, a third compression-resistant tow, a fourth compression-resistant tow, a diamond cavity, a buffer block, an inner core and filling foam, the first compression-resistant tow, the second compression-resistant tow, the third compression-resistant tow and the fourth compression-resistant tow are sequentially arranged in the shell sleeve, the first compression-resistant tow, the second compression-resistant tow, the third compression-resistant tow and the fourth compression-resistant tow are arranged in a square shape, the side walls of the first compression-resistant tow, the second compression-resistant tow, the third compression-resistant tow and the fourth compression-resistant tow are in mutual contact, the middle parts of the first compression-resistant tow, the second compression-resistant tow, the third compression-resistant tow and the fourth compression-resistant tow form a diamond cavity, a buffer block is arranged in the diamond cavity, an inner core is arranged inside the buffer block in a penetrating mode, and filling foam is filled in gaps between the first compression-resistant tow, the second compression-resistant tow, the third compression-resistant tow and the fourth.

Further, the shell cover includes inner shell, annular gasbag, insulating layer, tinfoil paper section of thick bamboo and shell, is provided with annular gasbag on the outer wall of inner shell, and the parcel is provided with the insulating layer on annular gasbag's the outer wall, has cup jointed the tinfoil paper section of thick bamboo on the outer wall of insulating layer, and the parcel is provided with the shell on the outer wall of tinfoil paper section of thick bamboo.

Further, the interior of the annular air bag is filled with flame-retardant gas, the flame-retardant gas is one of inert gas and nitrogen, and the heat insulation layer is a member made of polyurethane material.

Furthermore, the first pressure-resistant tow, the second pressure-resistant tow, the third pressure-resistant tow and the fourth pressure-resistant tow have the same structure and are single-strand metal tows made by interlacing and stranding a plurality of metal wires.

Further, the buffer block comprises a main body, a sleeve hole and protrusions, the main body is matched with the diamond-shaped cavity in shape, the sleeve hole is formed in the main body, an inner core is sleeved in an inner cavity of the sleeve hole, and the protrusions are evenly arranged on the peripheral side wall of the main body respectively.

Furthermore, the side all around of main part is the arc structure, and protruding hemisphere structure, and when the main part block was inside in the rhombus chamber, bellied outer terminal surface contacted with the lateral wall of resistance to compression silk bundle.

Further, the inner core comprises a copper conductive core, an insulating layer and a leather sheath, the insulating layer is wrapped on the outer wall of the copper conductive core, and the leather sheath is wrapped on the outer wall of the insulating layer.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model provides a resistance to compression fire prevention copper core wire and cable is a mouthful style of calligraphy at the inner chamber of shell and sets up four the same resistance to compression tows, and the resistance to compression tows is twisted by many wires and forms, utilizes resistance to compression tows to contact each other and forms the rhombus chamber, at rhombus intracavity inside block buffer block, the inner core sets up inside the buffer block, utilizes the mutual extrusion between the resistance to compression tows to resist the extrusion injury that external pressure caused the inner core, protects the inner core in the rhombus intracavity in the middle, has effectively improved the compressive capacity of cable.

2. The utility model provides a resistance to compression fire prevention copper core wire and cable, the main part of buffer block and the shape phase-match in rhombus chamber, the trepanning is seted up to the inside of main part, the trepanning inner chamber cup joints the inner core, and evenly set up the arch on the lateral wall all around of main part respectively, the side all around of main part is the arc structure, and the arch is the half spherical structure, the main part block is when rhombus intracavity portion, bellied outer terminal surface contacts with the lateral wall of resistance to compression silk bundle, the lateral wall of effective block resistance to compression silk bundle of arc ability is set to the lateral wall of main part all around, guarantee the relative stability of setting between its and resistance to compression silk bundle, and set up hemispherical arch on the lateral wall all around of main part, the cooperation main part can further resist compression.

3. The utility model provides a pair of resistance to compression fire prevention copper core wire and cable, set gradually annular gasbag on the inner shell outer wall of shell, the insulating layer, tinfoil fiber container and shell, the inside packing of annular gasbag has flame retardant gas such as nitrogen gas, tinfoil fiber container has fine fire blocking ability, the insulating layer of cooperation polyurethane material, can prevent that the conflagration from burning further destroying the cable after the cable shell, improve the fire behavior of cable, and the flame retardant gas of the inside packing of annular gasbag is then at the insulating layer, release after the top layers such as tinfoil fiber container and shell are destroyed, utilize flame retardant gas parcel cable around, reduce the conflagration and further cause serious loss to the cable, convenient practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial cross-sectional view of the shell of the present invention;

FIG. 3 is a schematic view of the buffer block structure of the present invention;

fig. 4 is a cross-sectional view of the inner core of the present invention.

In the figure: 1. a cable body; 11. a shell; 111. an inner shell; 112. an annular air bag; 113. a thermal insulation layer; 114. a tin foil paper sleeve; 115. a housing; 12. a first compression resistant tow; 13. a second compression resistant tow; 14. a third compression resistant tow; 15. a fourth compression resistant tow; 16. a diamond-shaped cavity; 17. a buffer block; 171. a main body; 172. trepanning; 173. a protrusion; 18. an inner core; 181. a copper conductive core; 182. an insulating layer; 183. a leather sheath; 19. and filling foam.

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 work belong to the protection scope of the present invention.

Referring to fig. 1, the compression-resistant fireproof copper-core electric wire and cable comprises a cable body 1, wherein the cable body 1 comprises a shell 11, a first compression-resistant filament bundle 12, a second compression-resistant filament bundle 13, a third compression-resistant filament bundle 14, a fourth compression-resistant filament bundle 15, a diamond-shaped cavity 16, a buffer block 17, an inner core 18 and a filling foam 19, the first compression-resistant filament bundle 12, the second compression-resistant filament bundle 13, the third compression-resistant filament bundle 14 and the fourth compression-resistant filament bundle 15 are sequentially arranged inside the shell 11, the first compression-resistant filament bundle 12, the second compression-resistant filament bundle 13, the third compression-resistant filament bundle 14 and the fourth compression-resistant filament bundle 15 are arranged in a square shape, side walls of the first compression-resistant filament bundle 12, the second compression-resistant filament bundle 13, the third compression-resistant filament bundle 14 and the fourth compression-resistant filament bundle 15 are in a same structure and are single-stranded metal filaments which are twisted in a staggered manner, and the middles of the first compression-resistant filament bundle 12, the second compression-resistant filament bundle 13, the third, a buffer block 17 is arranged in the diamond cavity 16, an inner core 18 penetrates through the interior of the buffer block 17, and filling foam 19 is filled in gaps among the first pressure-resistant filament bundle 12, the second pressure-resistant filament bundle 13, the third pressure-resistant filament bundle 14, the fourth pressure-resistant filament bundle 15 and the inner wall of the shell 11.

Referring to fig. 1-2, a compression-resistant and fireproof copper core wire and cable, a sheath 11 includes an inner shell 111, an annular air bag 112, a heat insulation layer 113, a tin foil paper tube 114 and an outer shell 115, the outer wall of the inner shell 111 is provided with the annular air bag 112, the inside of the annular air bag 112 is filled with a flame retardant gas, the flame retardant gas is one of inert gas and nitrogen, the outer wall of the annular air bag 112 is wrapped with the heat insulation layer 113, a member made of a polyurethane material of the heat insulation layer 113, the outer wall of the heat insulation layer 113 is sleeved with the tin foil paper tube 114, and the outer wall of the tin foil paper tube 114 is wrapped with the outer shell 115.

Referring to fig. 1 and 3, a compression-resistant fireproof copper core electric wire and cable, wherein a buffer block 17 comprises a main body 171, a sleeve hole 172 and a protrusion 173, the main body 171 is matched with the shape of a diamond-shaped cavity 16, the sleeve hole 172 is formed in the main body 171, an inner core 18 is sleeved in an inner cavity of the sleeve hole 172, the protrusions 173 are uniformly formed on the peripheral side walls of the main body 171, the peripheral side surfaces of the main body 171 are all arc-shaped structures, the protrusion 173 is of a hemispherical structure, and when the main body 171 is clamped in the diamond-shaped cavity 16, the outer end surfaces of the protrusion 173 are in contact with the side walls of compression-resistant strands.

Referring to fig. 1 and 4, an inner core 18 of the compression-resistant fireproof copper-core wire and cable includes a copper conductive core 181, an insulating layer 182, and a leather sheath 183, wherein the insulating layer 182 is wrapped on an outer wall of the copper conductive core 181, and the leather sheath 183 is wrapped on an outer wall of the insulating layer 182.

In summary, the following steps: the utility model provides a resistance to compression fire prevention copper core wire and cable, the inner chamber at the shell 11 is the square type and sets up four the same resistance to compression tows, and resistance to compression tows is twisted by many wires, utilizes resistance to compression tows to contact each other and forms rhombus chamber 16, block buffer block 17 in rhombus chamber 16 inside, inner core 18 sets up inside buffer block 17, utilize the mutual extrusion between the resistance to compression tows to resist the extrusion injury that external pressure caused inner core 18, protect inner core 18 in middle rhombus chamber 16, effectively improved the compressive capacity of cable; the main body 171 of the buffer block 17 is matched with the diamond cavity 16 in shape, a sleeve hole 172 is formed in the main body 171, an inner core 18 is sleeved in an inner cavity of the sleeve hole 172, protrusions 173 are uniformly arranged on the peripheral side walls of the main body 171 respectively, the peripheral side surfaces of the main body 171 are of arc-shaped structures, the protrusions 173 are of hemispherical structures, when the main body 171 is clamped in the diamond cavity 16, the outer end surfaces of the protrusions 173 are in contact with the side walls of the compression-resistant tows, the peripheral side walls of the main body 171 are arc-shaped, the side walls of the compression-resistant tows can be effectively clamped, relative stability between the compression-resistant tows and the side walls of the main body 171 is guaranteed, the hemispherical protrusions 173 are arranged on the peripheral side walls of the main body 171, the main body 171 can be; set gradually annular gasbag 112 on the inner shell 111 outer wall of shell 11, insulating layer 113, tinfoil fiber container 114 and shell 115, the inside packing of annular gasbag 112 has flame retardant gas such as nitrogen gas, tinfoil fiber container 114 has fine fire blocking ability, the insulating layer 113 of cooperation polyurethane material, can prevent that the conflagration from burning further destroying the cable behind the cable shell 115, improve the fire-proof ability of cable, and the flame retardant gas of annular gasbag 112 inside packing is then at insulating layer 113, tinfoil fiber container 114 and shell 115 etc. the surface layer is destroyed the back and is released, utilize around the flame retardant gas parcel cable, reduce the conflagration and further cause the serious loss to the cable, convenient and practical.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 resistance to compression fire prevention copper core wire and cable, includes cable body (1), its characterized in that: the cable body (1) comprises a shell sleeve (11), a first pressure-resistant tow (12), a second pressure-resistant tow (13), a third pressure-resistant tow (14), a fourth pressure-resistant tow (15), a diamond-shaped cavity (16), a buffer block (17), an inner core (18) and filling foam (19), wherein the first pressure-resistant tow (12), the second pressure-resistant tow (13), the third pressure-resistant tow (14) and the fourth pressure-resistant tow (15) are sequentially arranged inside the shell sleeve (11), the first pressure-resistant tow (12), the second pressure-resistant tow (13), the third pressure-resistant tow (14) and the fourth pressure-resistant tow (15) are arranged in a square shape, the side walls of the first pressure-resistant tow (12), the second pressure-resistant tow (13), the third pressure-resistant tow (14) and the fourth pressure-resistant tow (15) are in contact with each other, the diamond-shaped cavities (16) are formed in the middles of the first pressure-resistant tow (12, an inner core (18) penetrates through the inside of the buffer block (17), and filling foam (19) is filled in gaps among the first pressure-resistant tows (12), the second pressure-resistant tows (13), the third pressure-resistant tows (14), the fourth pressure-resistant tows (15) and the inner wall of the shell sleeve (11).

2. The compression-resistant fireproof copper-core wire and cable according to claim 1, characterized in that: the shell sleeve (11) comprises an inner shell (111), an annular air bag (112), a heat insulation layer (113), a tin foil paper tube (114) and an outer shell (115), wherein the annular air bag (112) is arranged on the outer wall of the inner shell (111), the heat insulation layer (113) is wrapped on the outer wall of the annular air bag (112), the tin foil paper tube (114) is sleeved on the outer wall of the heat insulation layer (113), and the outer shell (115) is wrapped on the outer wall of the tin foil paper tube (114).

3. The compression-resistant fireproof copper-core wire and cable according to claim 2, characterized in that: the interior of the annular air bag (112) is filled with flame-retardant gas, the flame-retardant gas is one of inert gas and nitrogen, and the heat-insulating layer (113) is a member made of polyurethane material.

4. The compression-resistant fireproof copper-core wire and cable according to claim 1, characterized in that: the first pressure-resistant wire bundle (12), the second pressure-resistant wire bundle (13), the third pressure-resistant wire bundle (14) and the fourth pressure-resistant wire bundle (15) are identical in structure and are single-strand wire bundles made of a plurality of metal wires through staggered stranding.

5. The compression-resistant fireproof copper-core wire and cable according to claim 1, characterized in that: buffer block (17) include main part (171), trepanning (172) and arch (173), and the shape phase-match of main part (171) and rhombus chamber (16), trepanning (172) have been seted up to the inside of main part (171), and inner core (18) have been cup jointed to trepanning (172) inner chamber, and evenly be provided with integrative arch (173) on the lateral wall all around of main part (171) respectively.

6. The compression-resistant fireproof copper-core wire and cable according to claim 5, wherein: the side all around of main part (171) is the arc structure, and protruding (173) are the hemisphere structure, and when main part (171) block was in rhombus chamber (16) inside, the outer terminal surface of protruding (173) contacted with the lateral wall of resistance to compression silk bundle.

7. The compression-resistant fireproof copper-core wire and cable according to claim 1, characterized in that: the inner core (18) comprises a copper conductive core (181), an insulating layer (182) and a leather sheath (183), the insulating layer (182) is wrapped on the outer wall of the copper conductive core (181), and the leather sheath (183) is wrapped on the outer wall of the insulating layer (182).