A cable conductor separator assembly and an insulated armored fireproof cable

Abstract

This invention relates to the field of cable technology and discloses a cable conductor separator assembly and an insulated, armored, fire-resistant cable. The assembly includes a base disposed inside the cable conductor, several blocks disposed on the base, and several fourth plates, arranged in pairs at both ends of the blocks, for separating several conductor cores inside the cable conductor. By placing multiple separator assemblies inside the cable's outer sheath, this invention prevents direct contact between adjacent conductor cores, avoiding mutual compression and friction between multiple conductor cores, thus reducing the potential risk of short circuits and ensuring the electrical integrity and fire resistance of the cable conductor during use.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and in particular to a cable conductor separator assembly and an insulated, armored, fire-resistant cable. Background Technology

[0002] In modern power transmission, rail transportation, high-rise buildings, energy facilities (such as power plants and substations), and data centers, the performance requirements for cables are becoming increasingly stringent. Cables must not only meet basic conductivity and insulation functions, but also possess excellent mechanical protection, fire resistance, long-term operational reliability, and efficient cabling capabilities within confined spaces. Insulated armored fire-resistant cables (such as mineral-insulated cables and flame-retardant fire-resistant cables) are an important cable type developed to meet these demanding requirements.

[0003] Existing multi-core armored cables consist of multiple insulated cores twisted together and then covered with an armor layer and an outer sheath. Since the multiple insulated cores are attached together, when the cable is bent, compressed, or subjected to long-term vibration, the cores squeeze and rub against each other, which can damage the insulation layer, leading to potential short-circuit risks and compromising the electrical integrity and fire protection of the cable. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a cable conductor separator assembly and an insulated armored fireproof cable.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cable conductor separation assembly, comprising:

[0007] The base is located inside the cable conductor;

[0008] Several blocks are set on the base;

[0009] A plurality of fourth pieces are arranged in pairs at both ends of a plurality of blocks to separate a plurality of conductor cores inside a cable conductor. The outer surface of each of the plurality of fourth pieces is provided with an arc surface. The conductor cores are arranged between the arc surfaces of two adjacent fourth pieces in two groups. A pressing unit is provided between the blocks and the fourth pieces. The pressing unit is configured to apply force to two fourth pieces in a group when it is under force, so that the two adjacent fourth pieces in the two groups clamp and fix the conductor cores.

[0010] A plurality of support components, disposed on a plurality of blocks, are used to restrict the position of the separator component within the cable conductor. The support components are used in conjunction with the compression unit. The support components are configured to apply force to the compression unit when the inner wall of the cable outer sheath applies force to at least one of its internal components.

[0011] As a further aspect of the present invention, the extrusion unit includes:

[0012] Two third pieces are respectively disposed on the outer surface of a set of two fourth pieces on an adjacent side. The two third pieces are configured to apply a pushing force to the set of two fourth pieces respectively when they are subjected to the squeezing force of at least one component inside the support assembly toward the base, so that the set of two fourth pieces move away from each other and clamp the conductor core. A crescent hole is provided between the two third pieces and the set of two fourth pieces respectively.

[0013] The second piece is disposed between a set of two fourth pieces. The second piece is configured to bend toward the base when subjected to the compressive force of the support assembly toward the base, thereby applying a tensile force to the set of two fourth pieces, causing the set of two fourth pieces to move closer together and then release. A cavity is formed between the block, the set of two fourth pieces and the second piece.

[0014] As a further aspect of the present invention, the support component includes:

[0015] The first column is located inside the cavity. Two cylinders are symmetrically fixed on the outer surface of the first column. The two cylinders are configured to apply force to the second piece when the first column moves toward the base, causing it to bend toward the base.

[0016] The top plate is located at one end of the first post and abuts against the inner wall of the cable outer sheath. The outer surface of the second plate has a third hole, and the first post is located inside the third hole.

[0017] Two support columns are located inside the cavity at the other end of the first column. The other ends of the two support columns are respectively connected to the outer surfaces of the two third pieces. The two support columns apply thrust to the two third pieces respectively.

[0018] As a further embodiment of the present invention, the outer circumferential surface of the base is provided with a plurality of grooves at equal intervals, and the outer surface of the plurality of blocks is provided with protrusions. The protrusions are slidably installed between the inner walls of the grooves, the protrusions are matched with the grooves, and a limit unit is provided between the protrusions and the base.

[0019] As a further aspect of the present invention, the limiting unit includes:

[0020] The second column is located inside the cavity at the other end of the first column. A fourth hole is opened through the outer surface of the block. The second column is slidably installed between the inner walls of the fourth hole. A plurality of first holes are opened on the outer surface of the base. The plurality of first holes are respectively located at the bottom of a plurality of grooves. The other end of the second column is inserted into the interior of the first hole.

[0021] As a further embodiment of the present invention, a plurality of through holes are provided in the circumferential direction of the end face of the base, and the plurality of first holes are respectively connected to the plurality of through holes. The base forms a first sheet body through the remaining material between the plurality of through holes and the plurality of grooves. Two openings are symmetrically opened on the outer surface of the second column near the other end. The width of the openings is greater than the thickness of the first sheet body. The two openings are located in the axial direction of the base. A first bevel is provided near the inner wall of the base for both openings. A second bevel is provided at the edge of the other end of the second column.

[0022] As a further embodiment of the present invention, an inner hole is provided through the middle position of the end face of the base, a cable is inserted inside the inner hole, and a fixing unit for fixing the cable is provided inside the plurality of through holes.

[0023] As a further aspect of the present invention, the fixing unit includes:

[0024] Several columns are disposed inside the base for clamping and fixing the cable. Several second holes are opened in the circumferential direction inside the base. The columns are slidably installed between the inner walls of the second holes. One end of the column abuts against the end face of the other end of the second column and is slidably installed. The other end of the column passes through the inner wall of the second hole and abuts against the outer surface of the cable. The inner hole is connected to several through holes through the second holes. Circular plates are provided on the outer surface of the columns near the block.

[0025] Several springs are respectively sleeved on the outer surface of several cylinders. One end of each spring is fixedly connected to the outer surface of a circular plate, and the other end of each spring is fixedly connected to the inner wall of a through hole.

[0026] As a further aspect of the present invention, an insulated armored fireproof cable includes an outer sheath, a plurality of conductor cores, and a separator assembly. The outer sheath is provided with a plurality of separator assemblies, which separate the plurality of conductor cores.

[0027] In this application, by placing multiple separator components inside the outer sheath of the cable, the two adjacent conductor cores are not in direct contact, thus avoiding mutual squeezing and friction between multiple conductor cores, which could damage the insulation layer, reducing the potential risk of short circuits in the conductor cores, and ensuring the electrical integrity and fire barrier of the cable conductor during use. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a cable conductor separator assembly and an insulated armored fireproof cable proposed in this invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of a cable conductor separator assembly and an insulated armored fireproof cable proposed in this invention.

[0030] Figure 3 This is a schematic diagram of the overall structure of a cable conductor separator assembly proposed in this invention;

[0031] Figure 4 This is a schematic diagram of the clamping state of a cable conductor separator assembly proposed in this invention;

[0032] Figure 5 This is a schematic diagram of the release state of a cable conductor separator assembly proposed in this invention;

[0033] Figure 6 This is a cross-sectional schematic diagram of the base of a cable conductor separator assembly proposed in this invention;

[0034] Figure 7 This is a schematic diagram of the fourth piece of a cable conductor separator assembly proposed in this invention.

[0035] Figure 8 This is a schematic diagram of the fourth piece of a cable conductor separator assembly according to the present invention being tightened.

[0036] Figure 9 This is a schematic diagram of the base of a cable conductor separator assembly proposed in this invention;

[0037] Figure 10 This is a top view schematic diagram of the pressure column of a cable conductor separator assembly proposed in this invention;

[0038] Figure 11 This is a block diagram of a cable conductor separator assembly proposed in this invention;

[0039] Figure 12 This is a schematic diagram of a pressure post of a cable conductor separator assembly proposed in this invention;

[0040] Figure 13 for Figure 6 A magnified view of a portion of point A in the middle.

[0041] In the diagram: 1. Cable outer sheath; 2. Conductor core; 3. Base; 301. Groove; 302. Inner hole; 303. Through hole; 304. First hole; 305. First piece; 306. Second hole; 400. Block; 401. Third hole; 402. Protrusion; 403. Fourth hole; 404. Second piece; 405. Crescent hole; 406. Third piece; 407. Fourth piece; 5. First pillar; 501. Cylinder; 502. Support pillar; 6. Top piece; 7. Cable; 8. Second pillar; 801. Opening; 802. First bevel; 803. Second bevel; 9. Column; 901. Circular piece; 10. Spring. Detailed Implementation

[0042] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0043] Existing multi-core, fully armored cables consist of multiple insulated cores twisted together and then completely covered with an armor layer and an outer sheath. Since the multiple insulated cores are bonded together, under bending, pressure, or long-term operational vibration, the cores squeeze and rub against each other, damaging the insulation layer. To address this problem, this application discloses a cable conductor separator assembly, such as... Figure 3 As shown, it includes: a base 3, three blocks 400, six fourth pieces 407 for separating the three conductor cores 2 inside the cable conductor, and a support assembly for limiting the position of the separating assembly inside the cable conductor.

[0044] like Figure 4 and Figure 7 As shown, six fourth pieces 407 are arranged in pairs at both ends of the three blocks 400. The outer surface of each of the six fourth pieces 407 is provided with an arc surface. The conductor core 2 is arranged between the arc surfaces of two adjacent fourth pieces 407 in the two groups, so that the two adjacent conductor cores 2 do not directly contact each other, avoiding mutual squeezing and friction between multiple conductor cores 2, which would damage the insulation layer, reduce the potential risk of short circuit of conductor core 2, and ensure the electrical integrity and fire barrier when the cable is used.

[0045] To limit the position of the separator assembly within the cable conductor, such as Figure 5 and Figure 6As shown, several blocks 400 are provided with support components. The support components include: a first column 5, a top piece 6 that abuts against the inner wall of the cable outer sheath 1 on the cable conductor, and two support columns 502 located at the other end of the first column 5. The first column 5, the top piece 6, and the two support columns 502 are integrally molded from polypropylene. The bottom ends of the two support columns 502 are respectively bonded or welded to the outer surface of two third pieces 406. When producing the cable conductor, the separator and the support components are wrapped together inside the cable outer sheath 1. Due to the consistency of the production process, the initial extrusion pressure of the inner wall of the cable outer sheath 1 on the top piece 6 of the support component is stable. This setting allows the separator to be fixed in a fixed position inside the cable outer sheath 1. Because of the initial extrusion of the inner wall of the cable outer sheath 1 on the top piece 6 of the support component, the two adjacent fourth pieces 407 inside the separator can clamp the conductor core 2 normally.

[0046] Because the cable conductor is pulled and dragged during use, the conductor core 2 will slide freely between the arc surfaces of two adjacent fourth plates 407, causing friction between the insulation layer on the outer surface of the conductor core 2 and the fourth plates 407, leading to insulation layer breakage. To ensure that the conductor core 2 does not slide freely between the arc surfaces of two adjacent fourth plates 407, in a further solution, such as... Figure 5 As shown, a compression unit is provided between two sets of four fourth pieces 407. When the inner wall of the cable outer sheath 1 on the cable conductor applies compression force to the top piece 6 inside the support assembly, the support assembly can apply force to the compression unit. When the compression unit is under force, it can apply force to the two sets of four fourth pieces 407, so that the two adjacent fourth pieces 407 in the two sets clamp and fix the conductor core 2, preventing the conductor core 2 from sliding freely between the two fourth pieces 407.

[0047] In order for the extrusion unit to apply force to a set of two fourth pieces 407, such as Figure 7 and Figure 8 As shown, the compression unit includes two third pieces 406 and a second piece 404. The two third pieces 406 are respectively disposed on the outer surface of an adjacent side of a set of two fourth pieces 407. When at least one component inside the support assembly moves toward the base 3, it compresses the two third pieces 406, enabling them to apply a pushing force to the set of two fourth pieces 407, causing the set of two fourth pieces 407 to move away from each other, thereby bringing adjacent four pieces 407 closer together and clamping the conductor core 2 between them. To prevent the conductor core 2 from slipping out from between the two adjacent four pieces 407 after clamping, the arc length formed by the arc surfaces of the two fourth pieces 407 is equal to 2 / 3 of the circumference of the conductor core 2. The remaining arc notch facilitates the insertion of the conductor core 2 between the arc surfaces of the two adjacent four pieces 407 during installation.

[0048] Because the cable conductor is bent during use, its internal conductor core 2 also bends. When the bending radius is small, the outer insulation layer of the conductor core 2 is stretched near the outer side of the bending arc. The stretched surface moves relative to the clamping fourth piece 407. At this time, if two adjacent fourth pieces 407 are still clamping the insulation layer on the surface of the conductor core 2, the insulation layer will be torn by the two adjacent fourth pieces 407 when stretched, thus making the conductor core 2 susceptible to short circuit. To avoid this problem, such as Figure 7 and Figure 8 As shown, the second sheet 404 is disposed between a set of two fourth sheets 407, wherein the support assembly is for use with the extrusion unit, as shown in the figure. Figure 5 and Figure 6 As shown, two cylinders 501 are symmetrically fixed on the outer surface of the first column 5. When the bending radius of the cable conductor is small, the surface of the cable outer sheath 1 near the outer side of the bending arc will be stretched, thus losing its curvature and pressing the top plate 6. The top plate 6 will drive the first column 5 to move closer to the base 3. The two cylinders 501 are configured to apply force to the second plate 404 when the first column 5 moves towards the base 3. Figure 8 As shown, bending it towards the base 3 applies tension to a set of two fourth pieces 407, bringing the two fourth pieces 407 closer together, thus moving adjacent fourth pieces 407 apart, thereby loosening the conductor core 2 between them. Figure 5 As shown, there is a gap between the conductor core 2 and the fourth piece 407. At this time, when the conductor core 2 is bent, the insulation layer on its outer surface will not be clamped by the two adjacent fourth pieces 407 in the two sets, thus avoiding the insulation layer being torn by the fourth piece 407.

[0049] Because when the first column 5 moves closer to the base 3, it will cause the two support columns 502 to exert a pushing force on the two third pieces 406. Before the two columns 501 reach the second piece 404, the two third pieces 406 will push a group of two fourth pieces 407 away from each other, thereby causing the two adjacent fourth pieces 407 in the two groups to move closer to each other, clamping the conductor core 2 between them. At this time, if Figure 6 As shown, this is the normal clamping state of the conductor core 2. At this time, the included angle between the centerlines of the two support columns 502 is 135°. When the bending radius of the cable conductor is small, the distance the top plate 6 moves the first column 5 closer to the base 3 increases significantly. The thrust generated by the first column 5 on the two third plates 406 through the two support columns 502 also increases significantly. To prevent the fourth plate 407 from damaging or tearing the insulation layer on the surface of the conductor core 2, a crescent hole 405 is provided between each of the two third plates 406 and a set of two fourth plates 407. When the thrust generated by the two third plates 406 exceeds the limit value, such as... Figure 8 As shown, the two third pieces 406 are squeezed and deformed into the crescent-shaped hole 405. At this time, the included angle of the center line of the support column 502 is 155°, and the thrust on the two sets of fourth pieces 407 is reduced. The two support columns 502 will use the connection point of the two third pieces 406 as the fulcrum of movement, so that the two sets of adjacent fourth pieces 407 will loosen their clamping on the conductor core 2. In order to avoid the lower half of the two fourth pieces 407 clamping the conductor core 2, the position of the fulcrum of movement is located in the lower half of the circumference of the conductor core 2, so that the second piece 404 bends and pulls the two sets of fourth pieces 407. Because the polypropylene material has high tensile strength and good elasticity, the deformed fourth pieces 407, third pieces 406 and second pieces 404 will recover after the conductor core 2 is straightened.

[0050] It should be noted that when two adjacent fourth pieces 407 in two groups clamp and fix the conductor core 2, the two fourth pieces 407 in one group move away from each other. In order to allow the second piece 404 to have room for expansion and contraction when the two fourth pieces 407 in one group move away from each other, the second piece 404 is set in an arc shape, and the curvature of the arc is towards the base 3. In this embodiment, the block 400, the second piece 404 and the two sets of fourth pieces 407 are integrally molded and made of polypropylene. Polypropylene has high tensile strength and good elasticity. A cavity is formed between the block 400, the two third pieces 406, the two sets of fourth pieces 407 and the second piece 404. The cavity is used to accommodate the first column 5 and the two support columns 502 in the mounting support assembly.

[0051] To prevent the cable conductor from twisting under torsional force, thus preventing the two fourth plates 407 from breaking, such as... Figure 10 As shown, a third hole 401 is provided on the outer surface of the second piece 404, and the first post 5 is disposed inside the third hole 401. A gap of 0.5 mm to 1 mm is provided between the outer shape of the first post 5 and the inner wall of the third hole 401. This arrangement allows the first post 5 to move within the gap when subjected to a torsional force, thereby preventing the second piece 404 from being pushed to cause the fourth piece 407 to twist.

[0052] To enable quick assembly and disassembly of base 3 and block 400, such as Figure 9 and Figure 11 As shown, the outer circumferential surface of the base 3 is provided with a number of grooves 301 at equal intervals, and the outer surface of a number of blocks 400 is provided with protrusions 402. The protrusions 402 are integrally formed with the blocks 400 and are matched with the grooves 301, so that the radial movement of the protrusions 402 along the base 3 is restricted. When the blocks 400 are installed on the base 3, the operator aligns the protrusions 402 with the grooves 301 and then slides them between the inner walls of the grooves 301.

[0053] To prevent the block 400 from slipping out of the groove 301 after being installed on the base 3, a limiting unit is provided between the protrusion 402 and the base 3, such as... Figure 6 , Figure 11 , Figure 12 and Figure 13 As shown, the limiting unit includes: a second column 8 located inside the cavity at the other end of the first column 5. The second column 8 is also integrally molded from polypropylene material and is bonded or welded to the bottom end of the first column 5. A fourth hole 403 is opened through the outer surface of the block 400. The second column 8 is slidably installed between the inner walls of the fourth hole 403. A plurality of first holes 304 are opened on the outer surface of the base 3. The plurality of first holes 304 are respectively set at the bottom of a plurality of grooves 301. The other end of the second column 8 is inserted into the interior of the first hole 304. At this time, the second column 8 restricts the block 400 on the base 3, so that it cannot slide along the axial direction of the base 3, thereby restricting the position of the block 400.

[0054] Because the second column 8 is installed at the bottom end of the first column 5, the second column 8 has a certain degree of axial elasticity under the cooperation of the support column 502 and the third piece 406. During the installation of the block 400 onto the base 3, the bottom end of the second column 8 rests against the bottom of the groove 301. In order to allow the bottom end of the second column 8 to easily slide into the interior of the first hole 304, such as... Figure 12 As shown, a second chamfer 803 is provided at the bottom edge of the second column 8. When the protrusion 402 slides along the inner wall of the groove 301, the second chamfer 803 will abut against the edge of the groove 301, thereby driving the second column 8 to move upward. When the second column 8 moves above the first hole 304, the second column 8 will slide into the interior of the first hole 304 under the action of elastic force, thereby limiting the block 400.

[0055] When the cable conductor is bent, the surface of the cable outer sheath 1 near the outer side of the bending arc will be stretched. Because the top plate 6 abuts against the inner wall of the cable outer sheath 1, it will move along the axial direction of the cable conductor as the cable outer sheath 1 is stretched. Since the top plate 6, the first post 5, and the second post 8 are fixedly connected, when the top plate 6 moves, to prevent it from pulling the second post 8 and causing it to bend, thus preventing the second post 8 from breaking at one end of the first hole 304, as... Figure 12 and Figure 13As shown, a number of through holes 303 are provided circumferentially on the end face of the base 3. A number of first holes 304 are connected to the number of through holes 303. The base 3 forms a first piece 305 through the remaining material between the number of through holes 303 and the number of grooves 301. Two openings 801 are symmetrically opened on the outer surface of the second column 8 near the other end. The width of the openings 801 is greater than the thickness of the first piece 305. The two openings 801 are located in the axial direction of the base 3. When the cable conductor is bent, the top piece 6 drives the second column 8 to move downward through the first column 5, so that the two openings 801 move to the position of the first piece 305. At this time, if the top piece 6 moves along the axial direction of the cable conductor due to the stretching of the cable outer sheath 1, the two openings 801 allow the second column 8 to move inside the first hole 304 along the axial direction of the base 3. This arrangement allows the second column 8 to have a gap for movement and prevents it from being pulled and broken at once.

[0056] During cable production, the insulation layer on the surface of the conductor core 2 is ethylene propylene rubber, the filler in the cable is cross-linked polyethylene, and the separator is made of polypropylene. When the cable is in use, it heats up due to electricity. At this time, the ethylene propylene rubber and cross-linked polyethylene expand more than the polypropylene. This expansion of the insulation layer compresses two adjacent fourth pieces 407 in the two sets, making the insulation layer more tightly clamped. The cross-linked polyethylene filler also expands. The expansion begins simultaneously along the axial and radial directions of the cable. The axial expansion causes the two adjacent fourth pieces 407 in the separator to move axially, while the radial expansion... At this time, because the inner diameter of the cable outer sheath 1 is provided with a metal armor layer, the inner diameter of the cable outer sheath 1 will not increase significantly. At this time, under the expansion of the insulation layer and the expansion of the polypropylene itself, the top piece 6 will be pushed downward by the inner wall of the cable outer sheath 1, so that the two openings 801 move to the position of the first piece 305. Through the two openings 801, the second post 8 moves along the axial direction of the base 3 inside the first hole 304, and the second post 8 will not be pulled off due to the expansion in the axial direction. At the same time, the downward movement of the top piece 6 will loosen the two adjacent fourth pieces 407, avoiding the insulation layer from being torn.

[0057] In order for the second post 8 to return to the position of restricting the movement of the block 400 when the cable is straightened again after bending, the two openings 801 are provided with first bevel angles 802 near the inner wall of the base 3. When the cable is straightened, the top plate 6 moves up. At this time, the bottom end of the second post 8 returns to the inside of the first hole 304 under the guidance of the two first bevel angles 802.

[0058] like Figures 1-3 As shown, this application also discloses an insulated armored fireproof cable, including an outer cable sheath 1, a plurality of conductor cores 2 and a separator assembly. The outer cable sheath 1 is provided with a plurality of separator assemblies, which separate the plurality of conductor cores 2.

[0059] Because the separator components are equidistantly arranged inside the outer sheath 1 of the cable, in order to ensure that the spacing between multiple separator components is the same, an inner hole 302 is provided through the middle position of the end face of the base 3. A cable 7 is inserted into the inner hole 302. The base 3 is first fitted onto the outer surface of the cable 7 at a certain distance. In order to ensure that the separator components are installed firmly, the cable 7 is made of cotton and linen rope (cotton and linen are flexible and can be squeezed), and the base 3 is made of aluminum alloy.

[0060] To prevent the base 3 from sliding freely on the outer surface of the cable 7, such as Figure 9 and Figure 13 As shown, a fixing unit for fixing the cable 7 is provided inside several through holes 303. The fixing unit includes several columns 9 disposed inside the base 3, several springs 10 respectively sleeved on the outer surface of the columns 9, several second holes 306 opened in the circumferential direction inside the base 3, the columns 9 are slidably installed between the inner walls of the second holes 306, one end of the column 9 abuts against the end face of the other end of the second column 8 and is slidably installed, the other end of the column 9 penetrates through the inner wall of the second hole 306 and abuts against the outer surface of the cable 7, and the inner hole 302 is connected to the several through holes 303 through the several second holes 306. The outer surfaces of several pillars 9 near one end of the block 400 are each provided with a disc 901. One end of the spring 10 is fixedly connected to the outer surface of the disc 901, and the other end of the spring 10 is fixedly connected to the inner wall of the through hole 303. When the block 400 is installed on the base 3, the bottom end of the second pillar 8 will slide into the inside of the first hole 304. At this time, the top end of the pillar 9 will be pressed, and the pillar 9 will move downward. When the pillar 9 moves downward, it will abut against the outer surface of the cable 7. This abutment will restrict the base 3 to a fixed position on the cable 7, thereby ensuring that the spacing of the base 3 inside the cable outer sheath 1 is the same.

[0061] The basic principles, main features and advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and modifications fall within the scope of the invention as claimed.

Claims

1. A cable conductor separator assembly, characterized in that, include: The base (3) is located inside the cable conductor; Several blocks (400) are disposed on the base (3); Several fourth pieces (407) are arranged in pairs at both ends of several blocks (400) to separate several conductor cores (2) inside the cable wire. The outer surface of each of the several fourth pieces (407) is provided with an arc surface. The conductor core (2) is arranged between the arc surfaces of two adjacent fourth pieces (407) in the two groups. A compression unit is disposed between the block (400) and the fourth piece (407). The compression unit is configured to apply force to a group of two fourth pieces (407) when it is subjected to force, so that the two adjacent fourth pieces (407) in the two groups clamp and fix the conductor core (2). A plurality of support components, which are disposed on a plurality of blocks (400), are used to restrict the position of the separator component within the cable conductor. The support components are used in conjunction with the compression unit. The support components are configured to apply force to the compression unit when the inner wall of the cable outer sheath (1) applies force to at least one of its internal components.

2. The cable conductor separator assembly according to claim 1, characterized in that, The extrusion unit includes: Two third pieces (406) are respectively disposed on the outer surface of a pair of four pieces (407) on an adjacent side. The two third pieces (406) are configured to apply a pushing force to the pair of four pieces (407) respectively when they are subjected to the squeezing force of at least one component inside the support assembly toward the base (3), so that the pair of four pieces (407) move away from each other and clamp the conductor core (2). A crescent hole (405) is provided between the two third pieces (406) and the pair of four pieces (407). The second piece (404) is disposed between a set of two fourth pieces (407). The second piece (404) is configured to bend toward the base (3) when it is subjected to the compressive force of the support assembly toward the base (3), thereby applying a tensile force to the set of two fourth pieces (407) and causing the set of two fourth pieces (407) to move closer to each other and then release. A cavity is formed between the block (400), the set of two fourth pieces (407) and the second piece (404).

3. The cable conductor separator assembly according to claim 1, characterized in that, The support components include: The first column (5) is located inside the cavity. Two cylinders (501) are symmetrically fixed on the outer surface of the first column (5). The two cylinders (501) are configured to exert force on the second piece (404) when the first column (5) moves toward the base (3), causing it to bend toward the base (3). The top piece (6) is located at one end of the first post (5) and abuts against the inner wall of the cable outer sheath (1). The outer surface of the second piece (404) is provided with a third hole (401), and the first post (5) is located inside the third hole (401). Two support columns (502) are located inside the cavity at the other end of the first column (5). The other ends of the two support columns (502) are respectively connected to the outer surfaces of the two third pieces (406). The two support columns (502) apply thrust to the two third pieces (406) respectively.

4. The cable conductor separator assembly according to claim 3, characterized in that, The outer circumferential surface of the base (3) is provided with a plurality of grooves (301) at equal intervals. The outer surface of the plurality of blocks (400) is provided with protrusions (402). The protrusions (402) are slidably installed between the inner walls of the grooves (301). The protrusions (402) are matched with the grooves (301). A limit unit is provided between the protrusions (402) and the base (3).

5. The cable conductor separator assembly according to claim 4, characterized in that, The limiting unit includes: The second column (8) is located inside the cavity at the other end of the first column (5). A fourth hole (403) is opened through the outer surface of the block (400). The second column (8) is slidably installed between the inner walls of the fourth hole (403). A plurality of first holes (304) are opened on the outer surface of the base (3). The plurality of first holes (304) are respectively set at the bottom of a plurality of grooves (301). The other end of the second column (8) is inserted into the interior of the first hole (304).

6. The cable conductor separator assembly according to claim 5, characterized in that, The base (3) has several through holes (303) circumferentially through the end face of the base (3). The several first holes (304) are connected to the several through holes (303). The base (3) forms a first sheet (305) through the remaining material between the several through holes (303) and the several grooves (301). The second column (8) has two openings (801) symmetrically opened on the outer surface near the other end. The width of the opening (801) is greater than the thickness of the first sheet (305). The two openings (801) are located in the axial direction of the base (3). The two openings (801) are provided with a first chamfer (802) near the inner wall of the base (3). The second chamfer (803) is provided at the edge of the other end of the second column (8).

7. The cable conductor separator assembly according to claim 6, characterized in that, An inner hole (302) is provided through the middle of the end face of the base (3), and a cable (7) is inserted inside the inner hole (302). Fixing units for fixing the cable (7) are provided inside the several through holes (303).

8. The cable conductor separator assembly according to claim 7, characterized in that, The fixing unit includes: Several columns (9) are disposed inside the base (3) for clamping and fixing the cable (7). Several second holes (306) are opened in the circumferential direction inside the base (3). The several columns (9) are slidably installed between the inner walls of the several second holes (306). One end of the column (9) abuts against the end face of the other end of the second column (8) and is slidably installed. The other end of the column (9) passes through the inner wall of the second hole (306) and abuts against the outer surface of the cable (7). The inner hole (302) is connected to several through holes (303) through the several second holes (306). The outer surface of the several columns (9) near the block (400) is provided with a circular piece (901). Several springs (10) are respectively sleeved on the outer surface of several columns (9). One end of the spring (10) is fixedly connected to the outer surface of the disc (901), and the other end of the spring (10) is fixedly connected to the inner wall of the through hole (303).

9. An insulated, armored, fire-resistant cable, characterized in that, The cable includes an outer sheath (1), a plurality of conductor cores (2), and a cable conductor separation assembly as described in any one of claims 1-8. The outer sheath (1) is provided with a plurality of the separation assemblies, which separate the plurality of conductor cores (2).

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