Anti-fracture fireproof cable

Abstract

The utility model discloses an anti-fracture fireproof cable, which comprises a conductor and a rubber protection layer, fireproof particles are arranged on the outer side of the conductor, an insulating layer is arranged on the outer side of the fireproof particles, a metal iron net layer is arranged on the outer side of the insulating layer, and the rubber protection layer is arranged on the outer side of the fireproof layer. A protection structure is installed at the outer end of the rubber protection layer, a deinsectization layer is arranged on the outer side of the rubber protection layer, a limiting structure is arranged on the outer side of the rubber protection layer and comprises clamping plates, connecting pieces and screw holes, the clamping plates are arranged above and below the rubber protection layer, the connecting pieces are fixed to the outer ends of the clamping plates, and the screw holes are formed in the outer side of the rubber protection layer. And screw holes are formed in the clamping plates. According to the anti-fracture fire-resistant cable, the fire-resistant performance is improved, the installation stability of the clamping plates is improved, the clamping plates are prevented from slipping, external pressure is buffered through the elastic covers, the abutting plates and the elastic rods, and cable fracture is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a fracture-proof fire-resistant cable. Background Art

[0002] Cables are commonly used in daily life and work. In order to improve the performance of cables, fire-resistant structures and anti-fracture structures are set inside the cables to reduce the economic losses caused by fire and improve the quality and service life of the cables.

[0003] For example, a Chinese utility model patent with authorization announcement number CN216720481U discloses an anti-breakage cable, including a cable body, a limit plate is arranged on the outside of the cable body, the limit plate is movably connected to the cable body, a plastic ring is installed inside the limit plate, the plastic ring is fixedly connected to the limit plate, mounting holes are arranged at the four corners inside the limit plate, the mounting holes are connected to the inside of the limit plate, and limit nuts are installed inside the mounting holes. Through the designed limit ring, spring, limit plate, mounting hole, limit nut and plastic ring, the plug on the right side of the cable can be connected to other wires or devices. When the cable is not long enough, the staff can pull the rear end of the cable backward. Since a certain length of cable is reserved on the left side of the limit ring, the cable at the rear end can be pulled backward. When pulled, the limit ring is driven to move backward and the spring is squeezed, which can effectively prevent the cable from breaking, improve the safety of the cable, and improve the quality and service life of the cable.

[0004] For example, a Chinese utility model patent with authorization announcement number CN216435523U discloses a new type of highly flame-retardant fire-resistant cable, including a main cable, side cables are arranged around the main cable, a metal iron mesh layer is arranged on the outside of the side cable, asbestos is filled between the side cable and the main cable, a fire-resistant layer is arranged on the outside of the side cable, a rubber protective outer layer is arranged on the outside of the fire-resistant layer, the main cable is composed of a cable body, a high-temperature fiber layer, a fire-resistant high-temperature yarn layer and a fire-resistant high-temperature yarn braided layer, a high-temperature fiber layer is arranged on the outside of the cable body, and a fire-resistant high-temperature yarn layer is arranged on the outside of the high-temperature fiber layer. The utility model can achieve good flame-retardant effect and high flame retardancy by arranging a high-temperature fiber layer, a fire-resistant high-temperature yarn layer, asbestos and a fire-resistant high-temperature yarn braided layer, and utilizing the mutual cooperation between them. In addition, by arranging a metal iron mesh layer and four side cables, the structure can be reinforced and not easy to break;

[0005] However, in the existing anti-fracture fire-resistant cables, the connection between the limit plate and the cable is unstable, and the limit plate is easy to slip off. Therefore, we propose an anti-fracture fire-resistant cable to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a fire-resistant cable that is anti-fracture, improves fire resistance, increases the stability of clamp plate installation, avoids the clamp plate from slipping, and utilizes elastic covers, pressure plates and elastic rods to buffer external pressure to avoid cable breakage.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a fracture-resistant fire-resistant cable, comprising a conductor and a rubber protective layer:

[0008] The conductor is provided with refractory particles on the outside, an insulating layer is provided on the outside of the refractory particles, a metal iron mesh layer is provided on the outside of the insulating layer, a refractory layer is provided on the outside of the metal iron mesh layer, and a rubber protective layer is provided on the outside of the refractory layer;

[0009] A protective structure is installed at the outer end of the rubber protective layer, and an insecticide layer is arranged on the outer side of the rubber protective layer;

[0010] A limiting structure is arranged on the outer side of the rubber protective layer.

[0011] Preferably, the protective structure comprises an elastic cover, a pressure plate and an elastic rod, the elastic cover is fixed to the outer end of the rubber protective layer, the inner top end of the elastic cover is provided with a pressure plate, and the lower surface of the pressure plate is fixed with an elastic rod.

[0012] Preferably, the elastic covers are evenly distributed on the outer end of the rubber protective layer.

[0013] Preferably, the limiting structure comprises a clamping plate, a connecting piece and a screw hole, and clamping plates are arranged above and below the rubber protective layer, a connecting piece is fixed to the outer end of the clamping plate, and a screw hole is opened inside the clamping plate.

[0014] Preferably, the clamping plates are in an arc-shaped structure, and the upper and lower groups of clamping plates outside the rubber protective layer are fixedly connected by screws.

[0015] Preferably, the shortest distance between the front and rear two groups of elastic covers on the rubber protective layer is equal to the thickness of the splint.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the anti-break fire-resistant cable improves the fire-resistant performance, increases the stability of the clamping plate installation, prevents the clamping plate from slipping, and uses the elastic cover, the pressure plate and the elastic rod to buffer the external pressure, thereby preventing the cable from breaking;

[0017] 1. Refractory particles and a refractory layer are provided, and the refractory particles and the refractory layer are made of phenolic resin composite materials. The refractory particles and the refractory layer protect the conductor and improve the fire resistance;

[0018] 2. An elastic cover and a clamping plate are provided, and the clamping plate is installed between the front and rear two sets of elastic covers, and the clamping plate is limited by the front and rear two sets of elastic covers to prevent the clamping plate from slipping off;

[0019] 3. An elastic cover, a pressure plate and an elastic rod are provided. When external pressure is applied to the cable, the elastic cover, the pressure plate and the elastic rod buffer the external pressure, thereby protecting the cable and preventing the cable from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front view cutaway structure of the utility model;

[0021] Figure 2 It is a side view cutaway structural schematic diagram of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of the plywood of the utility model;

[0023] Figure 4 It is an overall schematic diagram of the utility model.

[0024] In the figure: 1. conductor; 2. refractory particles; 3. insulating layer; 4. metal iron mesh layer; 5. refractory layer; 6. rubber protective layer; 7. elastic cover; 8. pressure plate; 9. elastic rod; 10. insecticide layer; 11. splint; 12. connecting piece; 13. screw hole. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: a fire-resistant cable that prevents breakage, including a conductor 1, fire-resistant particles 2, an insulating layer 3, a metal iron mesh layer 4, a fire-resistant layer 5, a rubber protective layer 6, an elastic cover 7, a pressure plate 8, an elastic rod 9, an insecticide layer 10, a clamping plate 11, a connecting piece 12 and a screw hole 13, such as Figure 1 and Figure 2 As shown, the outer side of the conductor 1 is provided with refractory particles 2, the outer side of the refractory particles 2 is provided with an insulating layer 3, the outer side of the insulating layer 3 is provided with a metal iron mesh layer 4, and the outer side of the metal iron mesh layer 4 is provided with a refractory layer 5, the outer side of the refractory layer 5 is provided with a rubber protective layer 6, the outer side of the rubber protective layer 6 and the outer side of the elastic cover 7 are both provided with an insecticidal layer 10, the inner side of the insecticidal layer 10 is wrapped with an insecticidal agent, and the outer side of the insecticidal layer 10 is sprayed with an insecticidal liquid, and insects are killed by the insecticidal layer 10;

[0027] The refractory particles 2 and the refractory layer 5 are both made of phenolic resin composite materials. When a short circuit or an accidental fire occurs, the refractory particles 2 and the refractory layer 5 provide external fire protection for the conductor 1.

[0028] A protective structure is installed at the outer end of the rubber protective layer 6, and the protective structure includes an elastic cover 7, a pressure plate 8 and an elastic rod 9. The outer end of the rubber protective layer 6 is evenly fixed with the elastic cover 7, and the inner top of the elastic cover 7 is provided with a pressure plate 8, and the lower surface of the pressure plate 8 is fixed with an elastic rod 9. When external pressure is pressed against the elastic cover 7, the elastic cover 7 is deformed, the pressure plate 8 presses the elastic rod 9 downward, and the elastic rod 9 rebounds upward, reducing the pressure on the anti-fracture fire-resistant cable, thereby avoiding the anti-fracture cable.

[0029] A limiting structure is provided on the outer side of the rubber protective layer 6, and the limiting structure includes a plywood 11, a connecting piece 12 and a screw hole 13. The plywood 11 is provided on the upper and lower sides of the rubber protective layer 6, and a connecting piece 12 is fixed to the outer end of the plywood 11, and a screw hole 13 is opened inside the plywood 11. When it is necessary to limit the anti-break fire-resistant cable, the arc-shaped plywood 11 is clamped on the outer side of the rubber protective layer 6, and the plywood 11 is located between the elastic covers 7. The screws are passed through the connecting piece 12, and the upper and lower groups of plywood 11 are fixed by the screws. Since the shortest distance between the front and rear groups of elastic covers 7 on the rubber protective layer 6 is equal to the thickness of the plywood 11, the plywood 11 is located between the front and rear groups of elastic covers 7 to prevent the plywood 11 from sliding easily and improve the connection stability. The above completes a series of operations of the anti-break fire-resistant cable. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0030] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fire-resistant cable that is resistant to fracture, comprising a conductor (1) and a rubber protective layer (6), characterized in that: The conductor (1) is provided with refractory particles (2) on the outside, an insulating layer (3) is provided on the outside of the refractory particles (2), a metal iron mesh layer (4) is provided on the outside of the insulating layer (3), a refractory layer (5) is provided on the outside of the metal iron mesh layer (4), and a rubber protective layer (6) is provided on the outside of the refractory layer (5); A protective structure is installed at the outer end of the rubber protective layer (6), and an insecticide layer (10) is arranged on the outer side of the rubber protective layer (6); The outer side of the rubber protective layer (6) is provided with a limiting structure.

2. The anti-fracture fire-resistant cable according to claim 1, characterized in that: The protective structure comprises an elastic cover (7), a pressure plate (8) and an elastic rod (9); the elastic cover (7) is fixed to the outer end of the rubber protective layer (6); the pressure plate (8) is arranged at the inner top end of the elastic cover (7); and the elastic rod (9) is fixed to the lower surface of the pressure plate (8).

3. The anti-fracture fire-resistant cable according to claim 2, characterized in that: The elastic cover (7) is evenly distributed on the outer end of the rubber protective layer (6).

4. The anti-fracture fire-resistant cable according to claim 1, characterized in that: The limiting structure comprises a clamping plate (11), a connecting piece (12) and a screw hole (13); the clamping plates (11) are arranged above and below the rubber protective layer (6); the connecting piece (12) is fixed to the outer end of the clamping plate (11); and the screw hole (13) is opened inside the clamping plate (11).

5. The anti-fracture fire-resistant cable according to claim 4, characterized in that: The clamping plates (11) are in an arc-shaped structure, and the upper and lower groups of clamping plates (11) outside the rubber protective layer (6) are fixedly connected by screws.

6. The anti-fracture fire-resistant cable according to claim 4, characterized in that: The shortest distance between the two front and rear sets of elastic covers (7) on the rubber protective layer (6) is equal to the thickness of the clamping plate (11).

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