Wire cable and fixing device

Abstract

The utility model discloses a wire and cable and a fixing device, through the design of adding a reinforcing layer, because polyamide fiber yarns and polypropylene fiber yarns both have good light resistance, strong stretching performance and acid and alkali resistance, the reinforcing layer made of first reinforcing yarns and second reinforcing yarns has strong tear resistance, and the wire and cable can be fixed on the wire and cable. Therefore, the tear resistance of the sheath of the electric wire and cable is improved, the leakage of the wire core caused by the damage of the sheath is avoided, and the service life of the electric wire and cable is prolonged. Through the design of adding the cable reinforcing assembly, when the cable reinforcing device is used, a twisting disc is rotated, so that a threaded rod and a threaded sleeve move in a threaded meshing mode, an embracing tile moves downwards, wires and cables are clamped and fixed through the embracing tile and a U-shaped clamping base, the phenomenon that the wires and cables fall off after being fixed is prevented, and the cable reinforcing device is suitable for the wires and cables of different thicknesses; therefore, the threaded rod is conveniently fixed, the holding tile is prevented from loosening, and the fixing capability of the wire cable is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wire and cable, in particular to a wire and cable and a fixing device thereof. Background Technique

[0002] With the rapid development of the national economy, the usage amount and application scope of wire and cable, which is the main artery of the national economy, are increasing. Wire and cable is a cable used for transmitting and distributing electric energy. It is commonly used in urban underground power grids, outgoing lines of power stations, internal power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. In the power line, the proportion of wire and cable is gradually increasing. Wire and cable is a cable product used for transmitting and distributing high-power electric energy in the main line of the power system, including wire and cable with various voltage levels from 1 - 500 kV and above and various insulations.

[0003] After retrieval, the application number of the Chinese patent document is CN201620549218.7. This utility model relates to a wire and cable, which has three conductors, including a polyethylene insulation layer. The three conductors are coated by the polyethylene insulation layer. A metal shielding layer is arranged on the outer side of the polyethylene insulation layer. A flame retardant layer is arranged on the outer side of the metal shielding layer. A polyvinyl chloride insulation layer is arranged on the outer side of the flame retardant layer; An isolation plastic is arranged inside the polyethylene insulation layer. The isolation plastic separates the three conductors respectively. The isolation plastic is connected to the inner wall of the polyethylene insulation layer. Conductive paint is arranged inside the isolation plastic. The conductive paint is located between the three conductors. By arranging conductive paint inside the isolation plastic, electromagnetic shielding is formed, so that adjacent conductors will not be affected by electromagnetic interference, and the wire and cable can be used normally; And there is no need to additionally coat insulating materials outside the conductor, effectively reducing the material consumption and lowering the cost.

[0004] However, when the existing wire and cable is installed or used, its outer skin is easily damaged such as torn, resulting in possible exposure of the wire core, thus bringing potential safety hazards. Therefore, we need to propose a wire and cable and a fixing device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a wire and cable and a fixing device thereof, which adds a reinforcing layer. The tear resistance of the reinforcing layer is increased by the first reinforcing wire and the second reinforcing wire, thereby improving the tear resistance of the outer skin of the wire and cable, and avoiding the exposure of the wire core caused by the damage of the outer skin, so as to solve the problems raised in the above background technique.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wire and cable, comprising a wire and cable main body, the wire and cable main body comprising three wire cores, the outer side of the wire cores is sheathed with a first insulating layer, the outer side of the three wire cores is sheathed with a second insulating layer, the second insulating layer is filled with heat-insulating flame-retardant foam cotton, the outer side of the second insulating layer is sheathed with a flame-retardant layer, and the outer side of the flame-retardant layer is sheathed with a reinforcing layer;

[0007] The reinforcing layer is a loop formed by vertically cross-weaving multiple groups of reinforcing wires, and the reinforcing wire is a rope formed by interlacing and weaving a first reinforcing wire and a second reinforcing wire. The first reinforcing wire is a nylon fiber wire, and the second reinforcing wire is a polypropylene fiber wire. The diameters of the first reinforcing wire and the second reinforcing wire are the same.

[0008] Preferably, a waterproof layer is provided on the outside of the reinforcement layer, a TPU waterproof film is attached to the surface of the waterproof layer, and a wear-resistant layer is provided on the outside of the waterproof layer, and the wear-resistant layer is a ring made of a surface paper of wear-resistant material aluminum oxide impregnated with melamine resin.

[0009] Preferably, the first insulating layer, the second insulating layer, the flame retardant layer, the reinforcement layer, the waterproof layer and the wear-resistant layer are bonded together by hot melt adhesive.

[0010] Based on the above-described wire and cable, the utility model further provides a fixing device, including a bottom plate, two support plates are fixed on the bottom plate, guide grooves are provided on opposite sides of the two support plates, multiple groups of cable installation components are installed in the guide grooves, and cable clamping components are provided on the cable installation components;

[0011] The cable clamping assembly comprises a threaded rod, the lower end of which is rotatably connected to a bushing via a bearing, and a first rubber anti-slip pad is fitted and fixed to the lower end of the bushing.

[0012] Preferably, the cable installation assembly includes a lower fixing plate and an upper fixing plate, and the lower fixing plate and the upper fixing plate are fixed between two groups of guide grooves by a first bolt, and a U-shaped clamp seat is fixed between the lower fixing plate and the upper fixing plate, and a second rubber anti-slip pad is fitted and fixed on the inner bottom of the U-shaped clamp seat.

[0013] Preferably, a plurality of sets of screw sleeves are embedded on the upper fixed plate, and the plurality of threaded rods are respectively threadedly connected to the plurality of screw sleeves. A torsion plate is fixed to the upper end of the threaded rod, and a locking nut is threadedly connected to the threaded rod, and the locking nut is located between the torsion plate and the screw sleeve.

[0014] Preferably, a fixed cover plate is fixed to the upper ends of the two support plates by second bolts, and a group of mounting holes are opened at the four corners of the bottom plate.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The utility model improves the anti - tearing ability of the wire and cable outer sheath by adding a reinforcing layer. Since both polyamide fiber filaments and polypropylene fiber filaments have good light resistance, strong elongation, and acid and alkali resistance, the reinforcing layer made of the first reinforcing wire and the second reinforcing wire has strong anti - tearing ability, thus enhancing the anti - tearing ability of the wire and cable outer sheath, avoiding the exposure of the wire core due to outer sheath damage, and improving the service life of the wire and cable.

[0017] 2. The utility model improves the fixing ability of the wire and cable by adding a cable reinforcement component. During use, by rotating the torsion disc, the threaded rod and the nut sleeve are engaged and moved in a threaded manner, causing the holding tile to move downward to clamp the wire and cable with the U - shaped clamp seat, preventing it from falling off after being fixed, and being applicable to wire and cables of different thicknesses. Then, twist the locking nut until it abuts against the nut sleeve to fix the threaded rod and prevent the holding tile from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic cross - sectional structural diagram of the wire and cable body of the utility model;

[0020] Figure 3 is a schematic structural diagram of the reinforcing wire of the utility model;

[0021] Figure 4 is a schematic structural diagram of the cable installation component of the utility model;

[0022] Figure 5 is the utility model Figure 4 magnified view of A in.

[0023] In the figure: 100, wire and cable body; 110, wire core; 120, first insulating layer; 130, heat - insulating and flame - retardant foam cotton; 140, second insulating layer; 150, flame - retardant layer; 160, reinforcing layer; 161, first reinforcing wire; 162, second reinforcing wire; 170, waterproof layer; 180, wear - resistant layer; 200, bottom plate; 210, mounting hole; 220, support plate; 230, guide groove; 240, fixed cover plate; 300, cable installation component; 301, lower fixing plate; 302, upper fixing plate; 303, U - shaped clamp seat; 304, second rubber anti - slip pad; 305, nut sleeve; 400, cable clamping component; 401, threaded rod; 402, holding tile; 403, first rubber anti - slip pad; 404, locking nut; 405, torsion disc; 406, bearing. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution: a wire and cable, including a wire and cable main body 100. The wire and cable main body 100 includes three wire cores 110. A first insulating layer 120 is sleeved outside the wire cores 110. A second insulating layer 140 is sleeved outside the three wire cores 110. Heat-insulating and flame-retardant foam cotton 130 is filled inside the second insulating layer 140. A flame-retardant layer 150 is sleeved outside the second insulating layer 140. A reinforcing layer 160 is sleeved outside the flame-retardant layer 150;

[0026] The reinforcing layer 160 is made of a loop formed by vertically and crosswise braiding multiple groups of reinforcing wires. The reinforcing wires are made of a wire rope formed by alternately braiding a first reinforcing wire 161 and a second reinforcing wire 162. The first reinforcing wire 161 is a polyamide fiber wire, and the second reinforcing wire 162 is a polypropylene fiber wire. The diameters of the first reinforcing wire 161 and the second reinforcing wire 162 are the same;

[0027] Because both the polyamide fiber wire and the polypropylene fiber wire have good light resistance, strong elongation, and acid and alkali resistance, the reinforcing layer 160 made of the first reinforcing wire 161 and the second reinforcing wire 162 has strong tear resistance, thereby improving the tear resistance of the outer skin of the wire and cable, avoiding the exposure of the wire core 110 due to damage to the outer skin, and thus improving the service life of the wire and cable.

[0028] A waterproof layer 170 is sleeved outside the reinforcing layer 160. A TPU waterproof film is attached to the surface of the waterproof layer 170, making the wire and cable have better waterproof performance. A wear-resistant layer 180 is sleeved outside the waterproof layer 170. The wear-resistant layer 180 is a loop made of a surface paper of wear-resistant material aluminum oxide impregnated with melamine resin, making the wire and cable have good wear resistance and preventing the exposure of the wire core 110 due to wear during long-term use.

[0029] The first insulating layer 120, the second insulating layer 140, the flame-retardant layer 150, the reinforcing layer 160, the waterproof layer 170, and the wear-resistant layer 180 are all bonded by hot melt adhesive to prevent the detachment of each material layer.

[0030] Based on the above-described wire and cable, the present utility model further provides a fixing device, which includes a bottom plate 200. Two support plates 220 are fixed on the bottom plate 200. Guide grooves 230 are provided on the opposite sides of the two support plates 220. A plurality of cable installation components 300 are installed in the guide grooves 230. A cable clamping and fixing component 400 is arranged on the cable installation component 300, which is convenient for simultaneously fixing multiple wire and cables with different thicknesses.

[0031] The cable clamping and fixing component 400 includes a threaded rod 401. The lower end of the threaded rod 401 is rotatably connected with a holding tile 402 through a bearing 406. A first rubber anti-slip pad 403 is fixedly attached to the lower end of the holding tile 402 to prevent the wire and cable sheath from being damaged during the process of the holding tile 402 clamping the wire and cable.

[0032] During use, by rotating the torsion disc 405, the threaded rod 401 is threadedly engaged and moved with the threaded sleeve 305, so that the holding tile 402 moves downward to clamp the wire and cable with the U-shaped clamping seat 303, preventing it from falling off after being fixed, and being applicable to wire and cables with different thicknesses. Then, twist the locking nut 404 until it abuts against the threaded sleeve 305 to facilitate fixing the threaded rod 401 and prevent the holding tile 402 from loosening, thereby improving the fixing ability of the wire and cable.

[0033] The cable installation component 300 includes a lower fixing plate 301 and an upper fixing plate 302. The lower fixing plate 301 and the upper fixing plate 302 are both fixed between the two guide grooves 230 through first bolts. A U-shaped clamping seat 303 is fixed between the lower fixing plate 301 and the upper fixing plate 302. A second rubber anti-slip pad 304 is fixedly attached to the inner bottom of the U-shaped clamping seat 303 to prevent the wire and cable sheath from being damaged during the process of the U-shaped clamping seat clamping the wire and cable.

[0034] A plurality of threaded sleeves 305 are embedded in the upper fixing plate 302. A plurality of threaded rods 401 are respectively threadedly connected to the plurality of threaded sleeves 305. A torsion disc 405 is fixed to the upper end of the threaded rod 401. A locking nut 404 is threadedly connected to the threaded rod 401. The locking nut 404 is located between the torsion disc 405 and the threaded sleeve 305. After the holding tile 402 clamps the wire and cable, twist the locking nut 404 so that its lower end abuts against the threaded sleeve 305 to prevent the threaded rod 401 from moving upward due to shaking and being threadedly engaged with the threaded sleeve 305, resulting in the holding tile 402 moving upward and the wire and cable loosening and falling off.

[0035] A fixing cover plate 240 is fixed to the upper ends of the two support plates 220 through second bolts. A set of installation holes 210 are provided at the four corners of the bottom plate 200, which is convenient for fixing the bottom plate 200 at positions such as the ground and the wall through installation bolts and the installation holes 210, thereby fixing the entire fixing device.

[0036] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A wire and cable, comprising a wire and cable body (100), characterized in that: The wire and cable body (100) comprises three wire cores (110), the outer side of the wire cores (110) is provided with a first insulating layer (120), the outer side of the three wire cores (110) is provided with a second insulating layer (140), the second insulating layer (140) is filled with heat-insulating flame-retardant foam (130), the outer side of the second insulating layer (140) is provided with a flame-retardant layer (150), and the outer side of the flame-retardant layer (150) is provided with a reinforcing layer (160); The reinforcing layer (160) is a loop formed by vertically cross-weaving a plurality of groups of reinforcing wires, and the reinforcing wires are a cord formed by interlacing and weaving a first reinforcing wire (161) and a second reinforcing wire (162), wherein the first reinforcing wire (161) is a cotton fiber wire, and the second reinforcing wire (162) is a polypropylene fiber wire, and the first reinforcing wire (161) and the second reinforcing wire (162) have the same diameter.

2. The electric wire and cable according to claim 1, characterized in that: The outer side of the reinforcement layer (160) is provided with a waterproof layer (170), the surface of the waterproof layer (170) is attached with a TPU waterproof film, the outer side of the waterproof layer (170) is provided with a wear-resistant layer (180), and the wear-resistant layer (180) is a ring made of a surface paper of wear-resistant material aluminum oxide impregnated with melamine resin.

3. The electric wire and cable according to claim 2, characterized in that: The first insulating layer (120), the second insulating layer (140), the flame retardant layer (150), the reinforcing layer (160), the waterproof layer (170) and the wear-resistant layer (180) are all bonded together by hot-melt adhesive.

4. A fixing device, characterized in that: An electric wire and cable according to any one of claims 1 to 3, comprising a bottom plate (200), two support plates (220) being fixed on the bottom plate (200), guide grooves (230) being provided on opposite sides of the two support plates (220), multiple groups of cable installation components (300) being installed in the guide grooves (230), and a cable clamping component (400) being provided on the cable installation component (300); The cable clamping assembly (400) comprises a threaded rod (401), the lower end of the threaded rod (401) is rotatably connected to a bushing (402) via a bearing (406), and a first rubber anti-slip pad (403) is fitted and fixed to the lower end of the bushing (402).

5. A fixing device according to claim 4, characterized in that: The cable installation assembly (300) comprises a lower fixing plate (301) and an upper fixing plate (302), wherein the lower fixing plate (301) and the upper fixing plate (302) are both fixed between two groups of guide grooves (230) by means of a first bolt, a U-shaped clamp seat (303) is fixed between the lower fixing plate (301) and the upper fixing plate (302), and a second rubber anti-slip pad (304) is fitted and fixed on the inner bottom of the U-shaped clamp seat (303).

6. A fixing device according to claim 5, characterized in that: A plurality of sets of threaded sleeves (305) are embedded on the upper fixing plate (302), and a plurality of threaded rods (401) are respectively threadedly connected to the plurality of sets of threaded sleeves (305). A torsion disc (405) is fixed to the upper end of the threaded rod (401), and a locking nut (404) is threadedly connected to the threaded rod (401), and the locking nut (404) is located between the torsion disc (405) and the threaded sleeve (305).

7. A fixing device according to claim 6, characterized in that: A fixed cover plate (240) is fixed to the upper ends of the two support plates (220) by means of second bolts, and a group of mounting holes (210) are provided at the four corners of the base plate (200).

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