Heatproof fireproof cable

Abstract

The utility model relates to the field of cables, in particular to a heat-resistant fireproof cable, which comprises a protective sleeve, a cavity is arranged in the protective sleeve, a plurality of copper leads are uniformly arranged in the inner cavity of the protective sleeve, an outer protective sleeve is arranged on the surface of the outer wall of the protective sleeve, and the outer protective sleeve can be sleeved outside the protective sleeve. Firstly, due to the fact that the material of the outer protective sleeve has good heat resistance, the outer protective sleeve can be located in a high-temperature environment and can resist high-temperature corrosion, the outer protective sleeve can be exposed to the sun through the anti-ultraviolet coating, the inner protective cavity can play a certain buffering role when the outer protective sleeve is impacted by foreign matter, and the service life of the outer protective sleeve is prolonged. And the flame-retardant particles in the filling cavity play a good flame-retardant role, so that the heat resistance and the fire resistance of the cable can be effectively improved.

Description

Technical Field

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

[0002] A cable is a combination of wires used to transmit electrical energy, signals and other information. Cables usually consist of multiple insulated wires, and these wires are internally wrapped with metal conductors for transmitting current or signals. They are usually tightly wrapped in insulating materials or metal tubes to protect the wires from external interference and damage. The outer layer of the cable is usually also covered with a protective sheath to increase its durability and reliability.

[0003] At present, the protective sheath materials of some cables are relatively simple, so that the cables are exposed to high-temperature environments and are very likely to catch fire spontaneously. In addition, some cables will also cause the outer skin of copper wires to catch fire spontaneously due to the internal conductors. The fire-proof performance of these cables is relatively poor. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a heat-resistant and fire-proof cable.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A heat-resistant and fire-proof cable includes a protective sheath. A cavity is formed inside the protective sheath. A plurality of copper wires are evenly arranged in the inner cavity of the protective sheath. An outer protective sheath is arranged on the outer wall surface of the protective sheath;

[0007] The cavity of the outer protective sheath close to the cavity of the protective sheath is set as a filling cavity, and the other cavity of the outer protective sheath far from the filling cavity is set as a protection cavity. The cavity of the filling cavity is larger than the cavity of the protection cavity.

[0008] In addition, preferably, the outer protective sheath is sleeved on the outer wall surface of the protective sheath, and the inner wall of the outer protective sheath contacts the outer wall surface of the protective sheath.

[0009] In addition, preferably, the outer protective sheath is made of a material including but not limited to acrylate rubber.

[0010] In addition, preferably, a steel ring is arranged on the outer surface of the protective sheath.

[0011] In addition, preferably, the copper wire includes a conductor, and a heat-resistant layer, a flame-retardant layer and an insulating layer are sequentially arranged outside the conductor.

[0012] In addition, preferably, the flame-retardant layer is made of a material including but not limited to flame-retardant silicone rubber.

[0013] In addition, a preferred structure is that the filling cavity is filled with flame retardant particles.

[0014] The beneficial effects of the present utility model are as follows: An outer protective sleeve can be sleeved outside the protective sleeve. First, due to its material, the outer protective sleeve has good heat resistance, facilitating its placement in a high-temperature environment, being resistant to high-temperature corrosion, and the anti-ultraviolet coating can also expose the outer protective sleeve to sunlight. Moreover, the internal protective cavity can play a certain buffering role when the outer protective sleeve is impacted by foreign objects, thereby reducing the impact force brought by foreign objects and preventing damage to the cable. Additionally, the flame retardant particles in the filling cavity play a good flame retardant role, effectively improving the heat resistance and fire protection of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of a partially enlarged structure of the cable;

[0016] Figure 2 It is a schematic diagram of the internal structure of the cable;

[0017] Figure 3 It is a schematic diagram of a partially enlarged structure of the outer protective sleeve;

[0018] Figure 4 It is a schematic diagram of the copper wire.

[0019] In the figure: 1 protective sleeve, 11 steel leather ring, 2 copper wire, 21 conductor, 22 heat-resistant layer, 23 flame retardant layer, 24 insulating layer, 3 outer protective sleeve, 31 protective cavity, 32 filling cavity, 321 flame retardant particles, 33 anti-ultraviolet coating. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] Refer to Figures 1-4 , a heat-resistant and fire-proof cable, including a protective sleeve 1. A cavity is provided inside the protective sleeve 1. A plurality of copper wires 2 are uniformly arranged in the inner cavity of the protective sleeve 1. An outer protective sleeve 3 is provided on the outer wall surface of the protective sleeve 1. The cavity inside the outer protective sleeve 3 close to the cavity of the protective sleeve 1 is set as a filling cavity 32, and the other cavity inside the outer protective sleeve 3 far from the filling cavity 32 is set as a protective cavity 13. The chamber of the filling cavity 32 is larger than the chamber of the protective cavity 13. The protective cavity 13 can play a buffering role when an external force hits the outer protective sleeve 3.

[0022] Moreover, the outer protective sleeve 3 is sleeved on the outer wall surface of the protective sleeve 1, and the inner wall of the outer protective sleeve 3 contacts the outer wall surface of the protective sleeve 1. The outer protective sleeve 3 can better protect the cable.

[0023] In addition, the outer protective sleeve 3 is made of a material including but not limited to acrylate rubber, and the outer protective sleeve 3 has good heat resistance.

[0024] Moreover, a steel ring 11 is provided on the outer surface of the protective sleeve 1, and the steel ring 11 can improve the strength of the protective sleeve 1.

[0025] Among them, the copper wire 2 includes a conductor 21, and a heat-resistant layer 22, a flame-retardant layer 23, and an insulating layer 24 are sequentially provided on the outside of the conductor 21. The flame-retardant layer 23 is made of a material including but not limited to flame-retardant silicone rubber, and the flame-retardant layer 23 can effectively play a role in flame retardance.

[0026] In addition, the filling cavity 32 is filled with flame-retardant particles 321, and the flame-retardant particles 321 are used to play a role in flame retardance outside.

[0027] In this embodiment, when the conductor 21 of the copper wire 2 is transmitting, the external heat-resistant layer 22 can play a role in high-temperature resistance. And once the copper wire 2 catches fire spontaneously, when the fire occurs inside the flame-retardant layer 23, the flame-retardant layer 23 can effectively prevent it from spreading to the outside. And when a combustion phenomenon occurs outside the flame-retardant layer 23, the flame-retardant layer 23 can prevent it from spreading to the inside and affecting the internal conductor 21.

[0028] An outer protective sleeve 3 can be sleeved outside the protective sleeve 1. First, due to the material of the outer protective sleeve 3 having good heat resistance, it is convenient for it to be located in a high-temperature environment and can resist high-temperature corrosion. Moreover, the anti-ultraviolet coating 33 can also make the outer protective sleeve 3 exposed to sunlight. And the internal protective cavity 31 can play a certain buffering role when the outer protective sleeve 3 is hit by foreign objects, thereby reducing the impact force brought by foreign objects and damaging the cable. And the flame-retardant particles 321 in the filling cavity 32 play a good role in flame retardance.

[0029] In the present utility model, by sleeving an outer protective sleeve 3 outside the protective sleeve 1, first, due to the material of the outer protective sleeve 3 having good heat resistance, it is convenient for it to be located in a high-temperature environment and can resist high-temperature corrosion. Moreover, the anti-ultraviolet coating 33 can also make the outer protective sleeve 3 exposed to sunlight. And the internal protective cavity 31 can play a certain buffering role when the outer protective sleeve 3 is hit by foreign objects, thereby reducing the impact force brought by foreign objects and damaging the cable. And the flame-retardant particles 321 in the filling cavity 32 play a good role in flame retardance. In this way, the heat resistance and fire protection of the cable can be effectively improved.

[0030] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A heat-resistant and fire-resistant cable, comprising a protective sheath (1), characterized in that: The protective sleeve (1) has a cavity formed therein, a plurality of copper wires (2) are evenly arranged in the inner cavity of the protective sleeve (1), and an outer protective sleeve (3) is arranged on the outer wall surface of the protective sleeve (1); The cavity inside the outer protective sleeve (3) close to the protective sleeve (1) is set as a filling cavity (32), and another cavity inside the outer protective sleeve (3) away from the filling cavity (32) is set as a protective cavity (13), and the filling cavity (32) is larger than the protective cavity (13).

2. A heat-resistant and fire-resistant cable according to claim 1, characterized in that: The outer protective sleeve (3) is sleeved on the outer wall surface of the protective sleeve (1), and the inner wall of the outer protective sleeve (3) is in contact with the outer wall surface of the protective sleeve (1).

3. The heat-resistant and fire-resistant cable according to claim 1, characterized in that: The outer protective sleeve (3) is made of a material including but not limited to acrylic rubber.

4. The heat-resistant and fire-resistant cable according to claim 1, characterized in that: A steel leather ring (11) is provided on the outer surface of the protective sleeve (1).

5. The heat-resistant and fire-resistant cable according to claim 1, characterized in that: The copper wire (2) comprises a conductor (21), and a heat-resistant layer (22), a flame-retardant layer (23), and an insulating layer (24) are sequentially arranged on the outside of the conductor (21).

6. The heat-resistant and fire-resistant cable according to claim 5, characterized in that: The flame retardant layer (23) is made of a material including but not limited to flame retardant organic silicone rubber.

7. The heat-resistant and fire-resistant cable according to claim 1, characterized in that: The filling cavity (32) is filled with flame retardant particles (321).

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