Silicone rubber sheath flame-retardant cable capable of being vitrified and preparation method thereof

Abstract

The invention discloses a ceramic silicone rubber sheath flame-retardant cable, which comprises a cable core, and is characterized in that the cable core comprises a conductor wire core, and the periphery of the conductor wire core is sleeved with an insulating wire core; each insulating wire core comprises a flame-retardant layer and an insulating layer; the insulation wire cores are separated through separation grooves, and the peripheries of the separation grooves are sleeved with protection sleeves. The periphery of the protective sleeve is detachably sleeved with a protective sleeve, and the protective sleeve is provided with a fixing hoop assembly. The two sections of sheath ends are detachably connected through an end hoop assembly. According to the invention, the sheath, the end head hoop assembly and the fixed hoop assembly are arranged, when the sheath is sleeved, the fixed hoop assembly is used for pressing, sleeving and hooping the sheath on the cable, when the end head hoop assembly is used for connecting and dismounting the end head sheath, the fixed hoop assembly can be pulled down by pulling, the installation and dismounting are convenient, the repeated utilization can be realized, and the cost is reduced. And meanwhile, the sheath can be tightly hooped on the cable through the fixing hoop assembly, so that the material of the sheath can be saved.

Description

Technical Field

[0001] The invention relates to the technical field of cable sheaths, and in particular to a ceramicizable silicone rubber sheathed flame-retardant cable and a preparation method thereof. Background Art

[0002] Cables are composed of one or more mutually insulated conductive wire cores placed in a sealed sheath, which may be covered with a protective covering layer, and are used to transmit and distribute electrical energy or send electrical signals.

[0003] The existing cable protective layer on the market is an open tubular sleeve with an arrow-shaped buckle at the opening, which is fastened by the arrow-shaped buckle after the sleeve is put on.

[0004] However, such an additional protective layer cannot be fastened to the outer periphery of the cable, is easy to loosen, and is relatively wasteful of materials; at the same time, such a cable additional protective cover is tubular when manufactured, and needs to be opened along the opening before being fastened to the cable during installation, which is more troublesome during installation. Summary of the invention

[0005] The main purpose of the present invention is to provide a ceramic silicone rubber sheathed flame-retardant cable and a preparation method thereof, aiming to solve the technical problems in the prior art that the external protective layer of the cable cannot be fastened on the cable and the installation is slow.

[0006] To achieve the above object, the present invention provides a ceramicizable silicone rubber sheathed flame-retardant cable, comprising a cable core, wherein the cable core comprises a conductor core, and an insulating core is sheathed around the conductor core; The insulated wire core comprises a flame retardant layer and an insulating layer; The insulating wire cores are separated by partitions, and a protective sleeve is provided on the periphery of the partitions; The outer periphery of the protective sleeve is detachably covered with a protective sleeve, and the protective sleeve is provided with a fixed hoop assembly; The ends of the two sections of the sheath are detachably connected via an end ferrule assembly.

[0007] Furthermore, the sheath includes a protective layer, and both the front and rear sides of the protective layer are provided with anti-slip edges for preventing slipping when two sections of the protective layer are connected; The two sections of the protective layer are detachably connected via an end sleeve assembly; At least one fixed sleeve hoop assembly is arranged on the periphery of each section of the protective layer, and the fixed sleeve hoop assembly is arranged between the anti-slip edges on both sides.

[0008] Furthermore, the end ferrule assembly includes a disassembly U-shaped frame, and a disassembly ferrule is installed at the U-shaped mouth of the disassembly U-shaped frame in a bendable and rotatable manner. The disassembly ferrule is provided with a concave groove adapted to the anti-slip edge, which is used to press the protective layer to cover the outer periphery of the cable core.

[0009] Furthermore, the fixed sleeve assembly includes a fixed U-shaped frame, and a connecting sleeve is installed at the U-shaped opening of the fixed U-shaped frame in a bendable and rotatable manner. The connecting sleeve is fixed on the protective layer and is used to put the two anti-slip edges on the periphery of the cable core and fit them tightly.

[0010] Furthermore, a sealing convex strip is attached to one side of the protective layer, and a sealing groove is attached to the other side; After the protective layer is sleeved on the outer periphery of the cable core, the sealing groove can be embedded on the sealing convex strip.

[0011] Furthermore, a through hole is provided at the bottom of the disassembly U-shaped frame, and a rib is provided on the inner side of the disassembly U-shaped frame.

[0012] Furthermore, a through hole is provided at the bottom of the fixed U-shaped frame, and a fixed rib is provided on the inner side of the fixed U-shaped frame.

[0013] Furthermore, the preparation method comprises: S1. According to the cable core diameter, punch and disassemble the U-shaped frame and fix the U-shaped frame, wherein the opening width of the U-shaped frame is greater than the cable core diameter; S2, casting and cutting the disassembly ferrule and the connection ferrule; S3, cutting out a protective layer adapted to the cable core according to the circumference of the cable core; Cut off the upper surface of one side of the protective layer and the lower surface of the other side, and the cutting thickness is one quarter of the thickness of the protective layer; A portion of the sealing convex strip is cut off on one side, and a portion of the sealing groove is cut off on the other side, wherein the thickness of the sealing convex strip is consistent with that of the sealing groove, and both are one quarter of the thickness of the protective layer; Install anti-slip edges on both ends of the protective layer; S4, rotatably mounting the connecting sleeve on the disassembly U-shaped frame, and attaching the connecting sleeve to the protective layer; The disassembly hoop is rotatably mounted on the fixed U-shaped frame; S5, pressing the connecting sleeve to cover the protective layer on the surface of the cable core; The disassembly hoop is pressed to connect the two sheaths and sleeve them on the cable core.

[0014] Furthermore, the disassembly U-shaped frame and the fixed U-shaped frame are made of highly elastic stainless steel.

[0015] Furthermore, the protective layer is made of ceramic silicone rubber sheath material.

[0016] The beneficial effects of the present invention are embodied in: In the present invention, a sheath, an end ferrule assembly and a fixed ferrule assembly are provided. When the sheath is sleeved, the fixed ferrule assembly is used for pressing to sleeve and tighten the sheath on the cable core. The end ferrule assembly is used for connecting the end sheath. When disassembling, the fixed ferrule assembly can be pulled down. The installation and disassembly are convenient and can be reused. At the same time, the sheath can be tightly clamped on the cable through the fixed ferrule assembly, which can save the material of the sheath. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the sheath and the clamping assembly of the present invention; Figure 3 It is a schematic diagram of the cross-sectional structure of the cable of the present invention; Figure 4 It is a schematic diagram of the structure of the end ferrule assembly of the present invention; Figure 5 It is a structural schematic diagram of the fixing hoop assembly of the present invention; Figure 6 It is a schematic diagram of the buckle structure of the sheath of the present invention; Figure 7 It is a schematic diagram of the structure when the present invention is used.

[0018] Description of reference numerals: 10. cable core, 101. protective cover, 102. partition, 103. insulating layer, 104. flame retardant layer, 105. conductor core; 20, sheath, 201, protective layer, 202, anti-slip edge, 203, sealing convex strip, 204, sealing groove; 30. End ferrule assembly, 301. Disassembly of U-shaped frame, 302. Rib plate, 303. Disassembly of ferrule; 40. Fixed ferrule assembly, 401. Fixed U-shaped frame, 402. Fixed rib plate, 403. Connecting ferrule. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0021] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or schemes that A and B meet at the same time. In addition, "multiple" refers to more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist.

[0022] See also Figures 1 to 7 The present invention discloses a ceramic silicone rubber sheathed flame-retardant cable, comprising a cable core 10, wherein the cable core 10 comprises a conductor core 105, and an insulating core is sheathed around the conductor core 105; The insulated wire core comprises a flame retardant layer 104 and an insulating layer 103; The insulating wire cores are separated by a partition 102, and a protective cover 101 is sheathed around the partition 102; The protective sleeve 101 is detachably covered with a protective sleeve 20, and the protective sleeve 20 is provided with a fixed hoop assembly 40; The ends of the two sections of the sheath 20 are detachably connected via an end ferrule assembly 30 .

[0023] When in use, press the fixed ferrule assembly to connect and tighten the sheath on the cable. The end ferrule assembly is used to connect the end sheath. When disassembling, pull the fixed ferrule assembly to be pulled down. It is easy to install and disassemble and can be reused. At the same time, the sheath can be tightly clamped on the cable through the fixed ferrule assembly, which can save the material of the sheath.

[0024] In some embodiments, see Figure 1 and 7 As shown, the sheath 20 includes a protective layer 201, and both the front and rear sides of the protective layer 201 are provided with anti-slip edges 202 for preventing slipping when two sections of the protective layer 201 are connected; The two sections of the protective layer 201 are detachably connected via an end sleeve assembly 30; At least one fixing hoop assembly 40 is disposed on the periphery of each section of the protective layer 201 , and the fixing hoop assembly 40 is disposed between the anti-slip edges 202 on both sides.

[0025] The anti-slip edge is used to keep the joints tight and prevent them from coming off when connecting the sheath segments.

[0026] In some embodiments, see Figure 4 and 7 As shown, the end ferrule assembly 30 includes a disassembly U-shaped frame 301, and a disassembly ferrule 303 is installed at the U-shaped mouth of the disassembly U-shaped frame 301 in a bendable and rotatable manner. The disassembly ferrule 303 is provided with a concave groove adapted to the anti-slip edge 202, which is used to press the protective layer 201 onto the periphery of the cable core 10.

[0027] In some embodiments, see Figure 5 and 7 As shown, the fixed ferrule assembly 40 includes a fixed U-shaped frame 401, and a connecting ferrule 403 is installed at the U-shaped mouth of the fixed U-shaped frame 401 in a bendable and rotatable manner. The connecting ferrule 403 is fixed on the protective layer 201 and is used to put the two anti-slip edges 202 on the periphery of the cable core 10 and fit tightly.

[0028] In some embodiments, see Figure 7 As shown, a sealing convex strip 203 is attached to one side of the protective layer 201, and a sealing groove 204 is attached to the other side; After the protective layer 201 is sleeved on the outer periphery of the cable core 10 , the sealing groove 204 can be embedded on the sealing convex strip 203 .

[0029] In some embodiments, see Figure 4 As shown, a through hole is provided at the bottom of the disassembly U-shaped frame 301 , and a rib plate 302 is provided inside the disassembly U-shaped frame 301 .

[0030] In some embodiments, see Figure 5 As shown, a through hole is provided at the bottom of the fixed U-shaped frame 401 , and a fixed rib 402 is provided inside the fixed U-shaped frame 401 .

[0031] In some embodiments, see Figures 1 to 7 As shown, the preparation method comprises: S1. According to the diameter of the cable core 10, punch and disassemble the U-shaped frame 301 and fix the U-shaped frame 401, wherein the opening width of the U-shaped frame is greater than the diameter of the cable core 10; S2, casting and cutting the disassembly hoop 303 and the connection hoop 403; S3, cutting out a protective layer 201 adapted to the cable core 10 according to the circumference of the cable core 10; Cut off the upper surface of one side of the protective layer 201 and the lower surface of the other side, and the cut thickness is one quarter of the thickness of the protective layer 201; A portion of the sealing convex strip 203 is cut off on one side for mounting or extrusion, and a portion of the sealing groove 204 is cut off on the other side for mounting or extrusion. The thickness of the sealing convex strip 203 and the sealing groove 204 are consistent, and both are one quarter of the thickness of the protective layer 201; Anti-slip edges 202 are mounted on both ends of the protective layer; S4, rotatably mounting the connecting sleeve 403 on the disassembly U-shaped frame 301, and attaching the connecting sleeve 403 to the protective layer 201; The disassembly hoop 303 is rotatably mounted on the fixed U-shaped frame 401; S5, pressing the connecting ferrule 403 to fit the protective layer 201 onto the surface of the cable core 10; The disassembly ferrule 303 is pressed to connect the two sheaths 20 and put them on the cable core 10 .

[0032] In some embodiments, see Figure 4 As shown, the disassembly U-shaped frame 301 and the fixed U-shaped frame 401 are made of highly elastic stainless steel.

[0033] In some embodiments, see Figure 7 As shown, the material of the protective layer 201 is a ceramic silicone rubber sheath material.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A ceramicizable silicone rubber sheathed flame-retardant cable, comprising a cable core (10), wherein the cable core (10) comprises a conductor core (105), and an insulating core is sheathed around the conductor core (105); The insulated wire core comprises a flame retardant layer (104) and an insulating layer (103); The insulating wire cores are separated by partition grooves (102), and a protective sleeve (101) is sleeved around the periphery of the partition grooves (102); Features The protective sleeve (101) is detachably covered with a protective sleeve (20), and a fixed hoop assembly (40) is provided on the protective sleeve (20); The ends of the two sections of the sheath (20) are detachably connected via an end ferrule assembly (30).

2. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 1, characterized in that: The protective sheath (20) comprises a protective layer (201), and both the front and rear sides of the protective layer (201) are provided with anti-slip edges (202) for preventing slipping when two sections of the protective layer (201) are connected; The two sections of the protective layer (201) are detachably connected via an end sleeve assembly (30); At least one fixed hoop assembly (40) is provided on the periphery of each section of the protective layer (201), and the fixed hoop assembly (40) is arranged between the anti-slip edges (202) on both sides.

3. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 1, characterized in that: The end ferrule assembly (30) comprises a disassembly U-shaped frame (301), a disassembly ferrule (303) being mounted at a U-shaped opening of the disassembly U-shaped frame (301) in a bendable and rotatable manner, and the disassembly ferrule (303) is provided with a concave groove adapted to the anti-slip edge (202) for being used to press the protective layer (201) onto the outer periphery of the cable core (10).

4. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 2, characterized in that: The fixed ferrule assembly (40) comprises a fixed U-shaped frame (401), wherein a connecting ferrule (403) is bendably and rotatably mounted at the U-shaped opening of the fixed U-shaped frame (401), and the connecting ferrule (403) is fixed on the protective layer (201) and is used to fit the two anti-slip edges (202) onto the outer periphery of the cable core (10) and to fit them tightly.

5. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 2, characterized in that: The protective layer (201) has a sealing convex strip (203) attached to one side thereof and a sealing groove (204) attached to the other side thereof; After the protective layer (201) is sleeved on the outer periphery of the cable core (10), the sealing groove (204) can be embedded on the sealing convex strip (203).

6. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 3, characterized in that: A through hole is provided at the bottom of the disassembly U-shaped frame (301), and a rib plate (302) is provided on the inner side of the disassembly U-shaped frame (301).

7. The ceramicizable silicone rubber sheathed flame-retardant cable according to claim 4, characterized in that: A through hole is provided at the bottom of the fixed U-shaped frame (401), and a fixed rib plate (402) is provided inside the fixed U-shaped frame (401).

8. A ceramicizable silicone rubber sheathed flame-retardant cable as claimed in any one of claims 1 to 7, characterized in that: The preparation method comprises: S1. According to the diameter of the cable core (10), punching and disassembling the U-shaped frame (301) and fixing the U-shaped frame (401), wherein the opening width of the U-shaped frame is greater than the diameter of the cable core (10); S2, casting and cutting the disassembly hoop (303) and the connection hoop (403); S3, cutting out a protective layer (201) adapted to the cable core (10) according to the circumference of the cable core (10); Cutting off the upper surface of one side of the protective layer (201) and the lower surface of the other side, with the thickness of the cut-off being one quarter of the thickness of the protective layer (201); A portion of the pasting or extrusion sealing convex strip (203) is cut off on one side, and a portion of the pasting or extrusion sealing groove (204) is cut off on the other side, wherein the thickness of the sealing convex strip (203) and the sealing groove (204) are consistent, and both are one quarter of the thickness of the protective layer (201); Mounting anti-slip edges (202) on both ends of the protective layer; S4, rotatably mounting the connecting sleeve (403) on the disassembly U-shaped frame (301), and attaching the connecting sleeve (403) to the protective layer (201); The disassembly hoop (303) is rotatably mounted on the fixed U-shaped frame (401); S5, pressing the connecting ferrule (403) to sleeve the protective layer (201) onto the surface of the cable core (10); The disassembly hoop (303) is pressed to connect the two sheaths (20) and to sleeve them onto the cable core (10).

9. The method for preparing a ceramicizable silicone rubber sheath according to claim 7, characterized in that: The disassembling U-shaped frame (301) and the fixing U-shaped frame (401) are made of highly elastic stainless steel.

10. The method for preparing a ceramicizable silicone rubber sheath according to claim 7, characterized in that: The material of the protective layer (201) is a ceramic silicone rubber sheath material.

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