Cable conductor separation assembly and insulated armored fireproof cable

Abstract

The invention relates to the technical field of cables, and discloses a cable conductor separation assembly and an insulated armored fireproof cable, comprising a base arranged inside a cable conductor, a plurality of block bodies arranged on the base, and a plurality of fourth sheet bodies arranged at two ends of the plurality of block bodies in pairs respectively, the cable conductor is used for separating a plurality of conductor wire cores in the cable conductor. According to the invention, the plurality of separation assemblies are arranged in the cable outer sheath, so that two adjacent conductor wire cores are not in direct contact, mutual extrusion and friction among the plurality of conductor wire cores and damage to an insulating layer are avoided, the potential risk of short circuit of the conductor wire cores is reduced, and the electrical integrity and fireproof barrier of the cable wire in use are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and in particular to a cable conductor separation component and an insulated armored fireproof cable. Background Art

[0002] Modern applications such as power transmission, rail transit, high-rise buildings, energy facilities (such as power plants and substations), and data centers place increasingly stringent demands on cable performance. Cables must not only meet basic electrical conductivity and insulation requirements but also possess excellent mechanical protection, fire resistance, long-term operational reliability, and efficient cabling within confined spaces. Insulated, armored, fire-resistant cables (such as mineral insulated cables and flame-retardant and fire-resistant cables) have emerged as a key type of cable to meet these stringent requirements.

[0003] Existing multi-core turnkey armored cables are made by twisting multiple insulated cores together and then covering them with an armor layer and an outer sheath. The multiple insulated cores are bonded together, so when the cable is bent, compressed, or subjected to long-term vibration, the cores squeeze and rub against each other, damaging the insulation layer, leading to potential short circuit risks and destroying the electrical integrity and fire protection barrier of the cable. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a cable conductor separation component and an insulated armored fireproof cable.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A cable conductor separation assembly comprising: A base, which is arranged inside the cable conductor; A plurality of blocks are arranged on a base; a plurality of fourth sheets, each of which is arranged in groups of two at both ends of the plurality of blocks, and is used to separate a plurality of conductor cores inside the cable wire; the outer surfaces of the plurality of fourth sheets are each provided with an arc surface, and the conductor core is arranged between the arc surfaces of two adjacent fourth sheets in two groups; a squeezing unit is provided between the block and the fourth sheet, and the squeezing unit is configured to apply force to a group of two fourth sheets when it is subjected to force, so that the two adjacent fourth sheets in the two groups clamp and fix the conductor core; Several support components are arranged on several blocks and are used to limit the position of the separation component in the cable conductor. The support components are used in conjunction with the extrusion unit. The support components are configured to apply force to the extrusion unit when the inner wall of the cable outer sheath applies force to at least one component inside it.

[0006] As a further solution of the present invention, the extrusion unit includes: Two third sheets, each disposed on an outer surface of an adjacent side of a group of two fourth sheets, the two third sheets being configured to apply a thrust to the group of two fourth sheets when subjected to a compressive force from at least one component within the support assembly toward the base, so as to move the group of two fourth sheets away from each other and thereby clamp the conductor core, a crescent hole being provided between each of the two third sheets and the group of two fourth sheets; The second sheet is arranged between a group of two fourth sheets. The second sheet is configured to bend toward the base when it is subjected to the squeezing force of the support assembly toward the base, thereby applying a pulling force to the group of two fourth sheets, so that the group of two fourth sheets are close to each other and thus loosened. A cavity is formed between the block, the group of two fourth sheets and the second sheet.

[0007] As a further solution of the present invention, the support assembly includes: A first column is disposed inside the cavity, and two cylinders are symmetrically fixedly mounted on the outer surface of the first column. The two cylinders are configured to exert force on the second sheet to bend toward the base when the first column moves toward the base; a top sheet, which is arranged at one end of the first column and abuts against the inner wall of the cable outer sheath; a third hole is opened on the outer surface of the second sheet, and the first column is arranged inside the third hole; Two support columns are arranged at the other end of the first column and are located inside the cavity. The other ends of the two support columns are respectively connected to the outer surfaces of the two third sheets, and thrust is applied to the two third sheets respectively through the two support columns.

[0008] As a further solution of the present invention, a plurality of grooves are equidistantly provided on the circumferential outer surface of the base, and the outer surfaces of the plurality of blocks are provided with protrusions, which are slidably installed between the inner walls of the grooves. The protrusions are matched with the grooves, and a limiting unit is provided between the protrusions and the base.

[0009] As a further solution of the present invention, the limiting unit includes: The second column is arranged at the other end of the first column and is located inside the cavity. 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 arranged at the bottom of a plurality of grooves. The other end of the second column is inserted into the inside of the first hole.

[0010] As a further solution of the present invention, a plurality of through holes are provided in the circumferential direction of the end face of the base, the plurality of first holes are respectively connected with the plurality of through holes, the base is formed with a first sheet body by the residual material between the plurality of through holes and the plurality of grooves, the outer surface of the second column near the other end is symmetrically provided with two openings, the width of the opening is greater than the thickness of the first sheet body, the two openings are arranged in the axial direction of the base, the two openings are provided with a first bevel near the inner wall of the base, and a second bevel is provided at the edge position of the other end of the second column.

[0011] As a further solution of the present invention, an inner hole is provided through the middle of the end surface of the base, a cable is inserted into the inner hole, and fixing units for fixing the cables are provided inside the plurality of through holes.

[0012] As a further solution of the present invention, the fixing unit includes: A plurality of columns are arranged inside the base and are used to clamp and fix the cables. A plurality of second holes are opened in the circumferential direction inside the base. The plurality of columns are slidably installed between the inner walls of the plurality of second holes. One end of the column abuts against the end surface 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 the plurality of through holes through the plurality of second holes. The outer surfaces of the plurality of columns close to one end of the block are all provided with discs. A plurality of springs are respectively sleeved on the outer surfaces of the plurality of cylinders, one end of the spring is fixedly connected to the outer surface of the disc, and the other end of the spring is fixedly connected to the inner wall of the through hole.

[0013] As a further solution of the present invention, an insulated armored fire-resistant cable includes a cable outer sheath, a plurality of conductor cores and a separation component. A plurality of separation components are arranged inside the cable outer sheath, and the plurality of conductor cores are separated by the separation components.

[0014] In this application, multiple separation components are arranged inside the outer sheath of the cable, so that the two adjacent conductor cores do not directly contact each other, avoiding mutual squeezing and friction between multiple conductor cores, damaging the insulation layer, reducing the potential risk of short circuit of the conductor cores, and ensuring the electrical integrity and fire barrier of the cable conductor during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a cable conductor separation assembly and an insulated armored fire-resistant cable proposed in the present invention; Figure 2 This is a schematic diagram of the internal structure of a cable conductor separation assembly and an insulated armored fire-resistant cable proposed in the present invention; Figure 3This is a schematic diagram of the overall structure of a cable conductor separation assembly proposed by the present invention; Figure 4 This is a schematic diagram of a cable conductor separation assembly in a clamped state according to the present invention; Figure 5 This is a schematic diagram of a released state of a cable conductor separation assembly proposed by the present invention; Figure 6 This is a schematic cross-sectional view of a base of a cable conductor separation assembly proposed by the present invention; Figure 7 This is a schematic diagram of the unfolding of the fourth sheet of a cable conductor separation assembly proposed by the present invention; Figure 8 This is a schematic diagram of tightening the fourth sheet of a cable conductor separation assembly proposed by the present invention; Figure 9 A schematic diagram of a base of a cable conductor separation assembly proposed by the present invention; Figure 10 This is a schematic top view of a pressure column of a cable conductor separation assembly proposed by the present invention; Figure 11 This is a block diagram of a cable conductor separation assembly proposed by the present invention; Figure 12 A schematic diagram of a pressure column of a cable conductor separation assembly proposed by the present invention; Figure 13 for Figure 6 A partial enlarged schematic diagram of point A in the middle.

[0016] In the figure: 1. Cable outer sheath; 2. Conductor core; 3. Base; 301. Groove; 302. Inner hole; 303. Through hole; 304. First hole; 305. First sheet; 306. Second hole; 400. Block; 401. Third hole; 402. Bump; 403. Fourth hole; 404. Second sheet; 405. Crescent hole; 406. Third sheet; 407. Fourth sheet; 5. First column; 501. Cylinder; 502. Support column; 6. Top sheet; 7. Cable; 8. Second column; 801. Opening; 802. First bevel; 803. Second bevel; 9. Cylinder; 901. Disc; 10. Spring. DETAILED DESCRIPTION

[0017] 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.

[0018] The existing multi-core armored cable is a cable in which multiple insulated cores are twisted together and then covered with an armor layer and an outer sheath. The multiple insulated cores are attached together, so when the cable is bent, compressed or subjected to long-term vibration, the cores squeeze and rub against each other, which will damage the insulation layer. In order to solve this problem, the present application discloses a cable conductor separation 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 wire, and a support component for limiting the position of the separation component in the cable wire.

[0019] like Figure 4 and Figure 7 As shown, six fourth sheets 407 are arranged in groups of two at both ends of the three blocks 400, and the outer surfaces of the six fourth sheets 407 are all provided with arc surfaces. The conductor core 2 is arranged between the arc surfaces of two adjacent fourth sheets 407 in the two groups, so that the two adjacent conductor cores 2 are not in direct contact with each other, avoiding mutual squeezing and friction between multiple conductor cores 2, damaging the insulation layer, reducing the potential risk of short circuit of the conductor core 2, and ensuring the electrical integrity and fire barrier of the cable wire during use.

[0020] To limit the location of the separation component within the cable conductor, such as Figure 5 and Figure 6 As shown, several blocks 400 are each provided with a support assembly, and the support assembly includes: a first column 5, a top plate 6 that is against the inner wall of the cable outer sheath 1 on the cable conductor, and two support columns 502 arranged at the other end of the first column 5. The first column 5, the top plate 6 and the two support columns 502 are made of polypropylene material as a whole, and the bottom ends of the two support columns 502 are respectively bonded or welded to the outer surfaces of the two third sheets 406. When the cable conductor is produced, the separation assembly and the support assembly are together covered 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 plate 6 on the support assembly is stable. Through this arrangement, the separation assembly can be pressed against 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 plate 6 on the support assembly, the two adjacent fourth sheets 407 in the separation assembly can be in a normal clamping state on the conductor core 2.

[0021] Because the cable wire will be pulled and dragged when in use, the conductor core 2 will slide freely between the arc surfaces of the two adjacent fourth sheets 407, causing the insulation layer on the outer surface of the conductor core 2 to rub against the fourth sheet 407, resulting in the insulation layer being broken. In order to ensure that the conductor core 2 does not slide freely between the arc surfaces of the two adjacent fourth sheets 407, in a further solution, as Figure 5As shown, an extrusion unit is provided between a group of two fourth sheets 407. When the inner wall of the cable outer sheath 1 on the cable conductor applies an extrusion force to the top sheet 6 inside the support assembly, the support assembly can apply force to the extrusion unit. When the extrusion unit is subjected to force, it can apply force to a group of two fourth sheets 407, so that the two adjacent fourth sheets 407 in the two groups clamp and fix the conductor core 2, thereby preventing the conductor core 2 from sliding freely between the two fourth sheets 407.

[0022] In order to make the extrusion unit exert force on a group of two fourth sheets 407, as shown in FIG. Figure 7 and Figure 8 As shown, the squeezing unit includes: two third sheets 406 and a second sheet 404. The two third sheets 406 are respectively arranged on the outer surface of one side of a group of two fourth sheets 407. When at least one component within the support assembly moves toward the base 3, it squeezes the two third sheets 406, causing them to apply a thrust to each of the two fourth sheets 407 in the group, forcing the two fourth sheets 407 in the group to move away from each other, thereby bringing the adjacent fourth sheets 407 in the two groups closer together, and thus clamping the conductor core 2 between them. To prevent the conductor core 2 from slipping out from between the adjacent fourth sheets 407 in the two groups after clamping, the arc length formed by the arc surfaces of the two fourth sheets 407 is equal to 2 / 3 of the circumference of the conductor core 2, leaving a circular gap to facilitate installation, so that the conductor core 2 is clamped between the arc surfaces of the two adjacent fourth sheets 407.

[0023] Because the cable wire will be bent during use, the conductor core 2 inside it will also bend. When the bending radius is small, the surface of the outer insulating layer of the conductor core 2 close to the outer side of the bending arc will be stretched, and the stretched surface will move relative to the clamping fourth sheet 407. At this time, if the two adjacent fourth sheets 407 are still clamping the insulating layer on the surface of the conductor core 2, the insulating layer will be torn by the two adjacent fourth sheets 407 when stretched, thereby causing the conductor core 2 to have a short circuit risk. In order to avoid this problem, Figure 7 and Figure 8 As shown, the second sheet 404 is disposed between a group of two fourth sheets 407, wherein the support assembly is used in conjunction with the extrusion unit, as shown in FIG. Figure 5 and Figure 6 As shown, two cylinders 501 are symmetrically fixedly installed 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 close to the outer side of the bending arc will be stretched, thereby losing the arc, squeezing the top sheet 6, and the top sheet 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 sheet 404 when the first column 5 moves toward the base 3. Figure 8As shown, the fourth sheet 407 is bent toward the base 3, thereby applying a pulling force to a group of two fourth sheets 407, so that the two fourth sheets 407 in the group are moved closer to each other, thereby moving the adjacent two fourth sheets 407 in the two groups away from each other, and then loosening the conductor core 2 between the two. Figure 5 As shown, there is a gap between the conductor core 2 and the fourth sheet 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 sheets 407 in the two groups, thereby preventing the insulation layer from being torn by the fourth sheet 407.

[0024] Because when the first column 5 moves closer to the base 3, it will drive the two supporting columns 502 to generate a thrust on the two third pieces 406. When the two cylinders 501 do not reach the second piece 404, the two third pieces 406 will push a group of two fourth pieces 407 to move away from each other, so that the two adjacent fourth pieces 407 in the two groups move closer to each other, clamping the conductor core 2 between them. At this time, Figure 6 As shown, this is the normal clamping state of the conductor core 2. At this time, the centerline angle of the two support columns 502 is 135°. When the bending radius of the cable conductor is small, the distance that the top plate 6 drives the first column 5 to move closer to the base 3 is significantly increased, and the thrust generated by the first column 5 on the two third sheets 406 through the two support columns 502 is also significantly increased. In order to prevent the fourth sheet 407 from clamping or tearing the insulation layer on the surface of the conductor core 2, a crescent hole 405 is provided between the two third sheets 406 and a group of two fourth sheets 407. When the thrust generated by the two third sheets 406 exceeds the limit value, as shown in FIG. Figure 8 As shown, the two third sheets 406 will be squeezed and deformed and recessed into the inside of the crescent hole 405. At this time, the centerline angle of the support column 502 is 155°, and the thrust received by a group of two fourth sheets 407 is reduced, and the connection point of the two support columns 502 at the two third sheets 406 will be used as a movement fulcrum, so that the two adjacent groups of two fourth sheets 407 will loosen their clamping of the conductor core 2. In order to avoid the lower half of the two fourth sheets 407 clamping the conductor core 2, the position of the movement fulcrum is located in the lower half of the circumference of the conductor core 2, so that the second sheet 404 bends and pulls a group of two fourth sheets 407. Because the polypropylene material has high tensile strength and good elasticity, the deformed fourth sheet 407, the third sheet 406 and the second sheet 404 will recover after the conductor core 2 is straightened.

[0025] It should be noted that when the two adjacent fourth sheets 407 in the two groups clamp and fix the conductor core 2, the two fourth sheets 407 in a group move away from each other. In order to allow the second sheet 404 to have space to expand and contract when the two fourth sheets 407 in a group move away from each other, the second sheet 404 is arranged in an arc shape, and the bending direction of the arc is toward the base 3. In this embodiment, the block 400, the second sheet 404 and the fourth sheets 407 in groups of two are integrally formed and made of polypropylene. Polypropylene has high tensile strength and good elasticity. A cavity is formed between the block 400, the two third sheets 406, the two fourth sheets 407 in a group and the second sheet 404. The cavity is used to accommodate the first column 5 and the two support columns 502 in the installation support assembly.

[0026] In order to prevent the cable conductor from twisting when subjected to a torsional force, the two fourth pieces 407 will not be twisted, causing them to break. Figure 10 As shown, a third hole 401 is provided on the outer surface of the second sheet 404, and the first column 5 is arranged inside the third hole 401. A gap of 0.5 mm to 1 mm is provided between the outer shape of the first column 5 and the inner wall of the third hole 401. This arrangement enables the first column 5 to move inside the gap when subjected to a twisting force, thereby avoiding pushing the second sheet 404 to cause the fourth sheet 407 to twist.

[0027] In order to realize the quick disassembly and assembly of the base 3 and the block 400, as shown in FIG. Figure 9 and Figure 11 As shown, a number of grooves 301 are equidistantly provided on the circumferential outer surface of the base 3, and a number of protrusions 402 are provided on the outer surfaces of the blocks 400. The protrusions 402 are integrally formed with the blocks 400, and the protrusions 402 are matched with the grooves 301 so that the radial movement of the protrusions 402 along the base 3 is restricted. When installing the blocks 400 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.

[0028] In order 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 13As shown, the limiting unit includes: a second column 8 arranged at the other end of the first column 5 and located inside the cavity, the second column 8 is also made of polypropylene material as a whole, and is bonded or welded to the bottom end of the first column 5, and a fourth hole 403 is opened through the outer surface of the block 400, and the second column 8 is slidably installed between the inner walls of the fourth hole 403, and a plurality of first holes 304 are opened on the outer surface of the base 3, and the plurality of first holes 304 are respectively arranged at the bottom of a plurality of grooves 301, and the other end of the second column 8 is inserted into the inside of the first hole 304. At this time, the second column 8 limits the block 400 on the base 3, so that it cannot slide along the axial direction of the base 3, thereby limiting the position of the block 400.

[0029] Because the second column 8 is installed at the bottom end of the first column 5, the second column 8 has a certain axial elasticity under the cooperation of the support column 502 and the third piece 406. When the block 400 is installed on the base 3, the bottom end of the second column 8 is against the bottom of the groove 301, so that the bottom end of the second column 8 can easily slide into the interior of the first hole 304. Figure 12 As shown, a second bevel 803 is provided at the edge of the bottom end of the second column 8. When the protrusion 402 slides along the inner wall of the groove 301, the second bevel 803 will resist the edge of the groove 301, thereby driving the second column 8 to move upward. When the second column 8 moves to above the first hole 304, the second column 8 will slide into the inside of the first hole 304 under the action of elastic force, thereby limiting the block 400.

[0030] When the cable conductor is bent, the surface of the cable outer sheath 1 close to the outer side of the bending arc will be stretched. Since the top sheet 6 is 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. Moreover, since the top sheet 6, the first column 5 and the second column 8 are fixedly connected together, when the top sheet 6 moves, in order to prevent it from pulling the second column 8 to bend, the second column 8 is broken at one end of the first hole 304, as shown in FIG. Figure 12 and Figure 13As shown, a plurality of through holes 303 are provided in the circumferential direction of the end face of the base 3, and a plurality of first holes 304 are respectively connected to the plurality of through holes 303. The base 3 forms a first sheet 305 through the residual material between the plurality of through holes 303 and the plurality of grooves 301. The outer surface of the second column 8 near the other end is symmetrically provided with two openings 801. The width of the opening 801 is greater than the thickness of the first sheet 305. The two openings 801 are arranged in the axial direction of the base 3. When the cable conductor is bent, the top sheet 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 sheet 305. At this time, if the top sheet 6 moves along the axial direction of the cable conductor as the cable outer sheath 1 is stretched, the second column 8 moves along the axial direction of the base 3 inside the first hole 304 through the two openings 801. Through this arrangement, the second column 8 has a gap for movement and will not be pulled and broken.

[0031] During the production of the cable conductor, the insulating layer on the surface of the conductor core 2 is EPDM, the filler in the cable conductor is cross-linked polyethylene, and the separator is made of polypropylene. When the cable conductor is in use, it will generate heat due to the power supply. At this time, the EPDM and cross-linked polyethylene will expand more than the polypropylene. When the insulating layer expands, it will squeeze the two adjacent fourth sheets 407 in the two groups, making the insulating layer clamped tighter, and the filler cross-linked polyethylene will also expand. The expansion will start simultaneously along the axial and radial directions of the cable conductor. When expanding in the axial direction, it will drive the two adjacent fourth sheets 407 in the separator to move axially, and when expanding in the radial direction, it will cause the adjacent fourth sheets 407 in the separator to move axially. At this time, since a metal armor layer is provided inside the cable outer sheath 1, the inner diameter of the cable outer sheath 1 will not increase significantly. At this time, under the expansion of the insulating layer and the expansion of the polypropylene itself, the top sheet 6 will be pushed downward by the inner wall of the cable outer sheath 1, so that the two openings 801 are moved to the position of the first sheet 305. Through the two openings 801, the second column 8 moves inside the first hole 304 along the axial direction of the base 3, and the second column 8 will not be broken due to the axial expansion. At the same time, the downward movement of the top sheet 6 will loosen the two adjacent fourth sheets 407 to avoid breaking the insulating layer.

[0032] In order to allow the second column 8 to return to the position where the block 400 is restricted from moving when the cable is straightened after being bent, the two openings 801 are provided with first bevels 802 near the inner wall of the base 3. When the cable is straightened, the top plate 6 moves upward. At this time, the bottom end of the second column 8 returns to the inside of the first hole 304 under the guidance of the two first bevels 802.

[0033] like Figure 1-Figure 3 As shown, the present application also discloses an insulated armored fireproof cable, comprising a cable outer sheath 1, a plurality of conductor cores 2 and a separation component. A plurality of separation components are arranged inside the cable outer sheath 1, and the plurality of conductor cores 2 are separated by the separation components.

[0034] Because the separation components are equidistantly arranged inside the cable outer sheath 1, in order to make the spacing between multiple separation components the same, an inner hole 302 is opened in the middle position of the end face of the base 3, and a cable 7 is inserted into the inner hole 302. The base 3 is first placed on the outer surface of the cable 7 at a certain distance. In order to ensure the firm installation of the separation components, 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.

[0035] In order to prevent the base 3 from sliding freely on the outer surface of the cable 7, Figure 9 and Figure 13 As shown, a fixing unit for fixing the cable 7 is provided inside the plurality of through holes 303, and the fixing unit includes: a plurality of columns 9 provided inside the base 3, a plurality of springs 10 respectively sleeved on the outer surfaces of the plurality of columns 9, a plurality of second holes 306 are opened in the circumferential direction inside the base 3, and the plurality of columns 9 are respectively slidably installed between the inner walls of the plurality of second holes 306, one end of the column 9 is against the end surface of the other end of the second column 8 and is slidably installed, and the other end of the column 9 passes through the inner wall of the second hole 306 and is against the outer surface of the cable 7, and the inner hole 302 is connected with the plurality of through holes 303 through the plurality of second holes 306. The outer surfaces of several columns 9 close to one end of the block 400 are provided with discs 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 column 8 will slide to the inside of the first hole 304. At this time, the top of the column 9 will be pressed, and the column 9 will move downward. When the column 9 moves downward, it will resist the outer surface of the cable 7. The resistance at this time will limit 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.

[0036] 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 separation assembly, characterized in that: include: A base (3) is arranged inside the cable conductor; A plurality of blocks (400) are arranged on a base (3); A plurality of fourth sheets (407), each of which is arranged in pairs at both ends of a plurality of blocks (400), and is used to separate a plurality of conductor cores (2) inside the cable conductor, wherein the outer surfaces of the plurality of fourth sheets (407) are all provided with arc surfaces, and the conductor cores (2) are arranged between the arc surfaces of two adjacent fourth sheets (407) in two groups; An extrusion unit is provided between the block (400) and the fourth sheet (407), and the extrusion unit is configured to apply force to a group of two fourth sheets (407) when subjected to force, so that the two adjacent fourth sheets (407) in the two groups clamp and fix the conductor core (2); A plurality of support assemblies are provided on a plurality of blocks (400) and are used to limit the position of the separation assembly in the cable conductor. The support assemblies are used in conjunction with the extrusion unit. The support assemblies are configured so that when the inner wall of the cable outer sheath (1) exerts force on at least one component inside the cable outer sheath (1), the support assemblies can exert force on the extrusion unit.

2. The cable conductor separation assembly according to claim 1, wherein: The extrusion unit comprises: Two third sheets (406) are respectively arranged on the outer surface of one side adjacent to a group of two fourth sheets (407), and the two third sheets (406) are arranged so that when they are subjected to a squeezing force from at least one component inside the support assembly toward the base (3), they can apply a thrust to the group of two fourth sheets (407) so that the group of two fourth sheets (407) move away from each other, thereby clamping the conductor core (2), and a crescent hole (405) is respectively provided between the two third sheets (406) and the group of two fourth sheets (407); The second sheet (404) is arranged between a group of two fourth sheets (407). The second sheet (404) is configured to bend toward the base (3) when it is subjected to the squeezing force of the support assembly toward the base (3), thereby applying a pulling force to the group of two fourth sheets (407), so that the group of two fourth sheets (407) are moved closer to each other and loosened. A cavity is formed between the block (400), the group of two fourth sheets (407) and the second sheet (404).

3. The cable conductor separation assembly according to claim 1, wherein: The support assembly comprises: A first column (5) is arranged inside the cavity, and two cylinders (501) are symmetrically fixedly mounted on the outer surface of the first column (5), and the two cylinders (501) are arranged to exert force on the second sheet (404) to bend it toward the base (3) when the first column (5) moves toward the base (3); A top sheet (6) is provided at one end of the first column (5) and abuts against the inner wall of the cable outer sheath (1); a third hole (401) is provided on the outer surface of the second sheet (404); and the first column (5) is provided inside the third hole (401); Two support columns (502) are arranged at the other end of the first column (5) and are located inside the cavity. The other ends of the two support columns (502) are respectively connected to the outer surfaces of the two third sheets (406). The two support columns (502) respectively apply thrust to the two third sheets (406).

4. The cable conductor separation assembly according to claim 3, wherein: The outer surface of the circumference of the base (3) is provided with a plurality of grooves (301) at equal intervals, and the outer surfaces of the plurality of blocks (400) are all provided with protrusions (402), and the protrusions (402) are slidably mounted between the inner walls of the grooves (301), the protrusions (402) and the grooves (301) are matched, and a limiting unit is provided between the protrusions (402) and the base (3).

5. The cable conductor separation assembly according to claim 4, characterized in that: The limiting unit includes: The second column (8) is arranged at the other end of the first column (5) and is located inside the cavity. The outer surface of the block (400) is provided with a fourth hole (403). The second column (8) is slidably installed between the inner walls of the fourth hole (403). The outer surface of the base (3) is provided with a plurality of first holes (304). The plurality of first holes (304) are respectively arranged at the bottoms 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 separation assembly according to claim 5, characterized in that: A plurality of through holes (303) are provided through the circumferential direction of the end face of the base (3), the plurality of first holes (304) are respectively connected to the plurality of through holes (303), the base (3) is formed with a first sheet (305) by the residual material between the plurality of through holes (303) and the plurality of grooves (301), the outer surface of the second column (8) near the other end is symmetrically provided with two openings (801), the width of the opening (801) is greater than the thickness of the first sheet (305), the two openings (801) are arranged in the axial direction of the base (3), the two openings (801) are provided with a first bevel (802) near the inner wall of the base (3), and the edge position of the other end of the second column (8) is provided with a second bevel (803).

7. The cable conductor separation assembly according to claim 6, wherein: An inner hole (302) is provided through the middle of the end surface of the base (3), a cable (7) is inserted into the inner hole (302), and a fixing unit for fixing the cable (7) is provided inside the plurality of through holes (303).

8. The cable conductor separation assembly according to claim 7, wherein: The fixing unit includes: A plurality of columns (9) are arranged inside the base (3) and are used to clamp and fix the cable (7). A plurality of second holes (306) are opened in the circumferential direction inside the base (3). The plurality of columns (9) are respectively slidably installed between the inner walls of the plurality of 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 the plurality of through holes (303) through the plurality of second holes (306). The outer surfaces of the plurality of columns (9) close to one end of the block (400) are all provided with a disc (901); A plurality of springs (10) are respectively sleeved on the outer surfaces of the plurality of cylinders (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 fireproof cable, characterized in that: The invention comprises a cable outer sheath (1), a plurality of conductor cores (2) and a cable conductor separation assembly according to any one of claims 1 to 8, wherein a plurality of the separation assemblies are arranged inside the cable outer sheath (1), and the plurality of conductor cores (2) are separated by the separation assemblies.

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