Flame-retardant fireproof cable

Abstract

The utility model belongs to the technical field of cables, and particularly relates to a flame-retardant fireproof cable, which comprises an aluminum substrate, a plurality of groups of cable cores penetrate through the aluminum substrate, the side walls of the plurality of groups of cable cores are wrapped with silica gel protection layers, the side wall of the aluminum substrate is sleeved with a shielding layer, the outer side of the shielding layer is sleeved with a heat dissipation layer, and the outer side of the heat dissipation layer is sleeved with a fireproof layer. The heat dissipation layer is sleeved with a sheath layer, a first cavity is formed in the silica gel protection layer, the first cavity is filled with a flame-retardant layer, and a hollow cavity is formed in the aluminum substrate. The flame-retardant effect of the outer surface of the cable can be improved through the sheath layer, the heat dissipation layer and the shielding layer, the cable can be effectively cooled, the internal temperature of the cable is reduced, the flame-retardant effect of the cable is achieved through the cooperation of the hollow cavity and the flame-retardant layer, the dual-flame-retardant effect is achieved through the internal and external cooperation, the flame-retardant performance of the cable is improved, and the service life of the cable is prolonged. And the cable is prevented from being damaged by external high-temperature combustion.

Description

Technical Field

[0001] The utility model belongs to the technical field of cables, in particular to a flame retardant and fireproof cable. Background Art

[0002] During the development of a fire in a building, the reliable operation of fire-fighting equipment such as automatic fire alarm equipment, fire emergency lighting and evacuation indication equipment, fire pumps and fire smoke exhaust fans is a key factor in fire prevention and control, and an important guarantee for the timely evacuation of personnel and fire rescue. The reliability of the power supply line of the fire-fighting equipment is a key factor in ensuring the normal operation of the fire-fighting equipment. Therefore, it is extremely important to evaluate the line integrity and fire resistance of fire-fighting wires and cables under fire.

[0003] Existing fireproof cables are usually rope-like cables formed by twisting several or several groups of wires (at least two in each group). Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside. During the use of the cable, it is necessary to avoid burning as much as possible. Once the fire burns inside the cable, it will cause a major fire accident.

[0004] In the current existing technology, when cables are used, once a fire occurs outside, the cables will quickly burn, leading to a larger fire and causing damage to the cables. Therefore, a flame retardant and fireproof cable is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the existing problems, a flame retardant and fireproof cable is proposed.

[0006] The technical solution adopted by the utility model to solve its technical problems is: the flame-retardant and fire-proof cable described in the utility model comprises an aluminum substrate, a cable core is penetrated through the aluminum substrate, the cable core is arranged in multiple groups, the side walls of the multiple groups of cable cores are all wrapped with a silicone protective layer, the side wall of the aluminum substrate is sheathed with a shielding layer, the outer side of the shielding layer is sheathed with a heat dissipation layer, the outer side of the heat dissipation layer is sheathed with a sheath layer, a first cavity is opened inside the silicone protective layer, the first cavity is filled with a flame-retardant layer, and a hollow cavity is opened in the aluminum substrate.

[0007] Preferably, the sheath layer, the heat dissipation layer, the shielding layer and the aluminum substrate are tightly fitted, and the aluminum substrate, the silicone protective layer and the cable core are tightly fitted.

[0008] Preferably, the shielding layer is made of overlapping soft copper tapes, and the heat dissipation layer is made of graphene material.

[0009] Preferably, the sheath layer is made of polyolefin material, and the flame retardant layer is made of glass fiber material.

[0010] Preferably, both ends of the outer side of the sheath layer are fixedly connected with fixing strips, and both ends of the sheath layer are rotatably connected with connecting components.

[0011] Preferably, the connection assembly comprises a connection sleeve, the connection sleeve is rotatably connected to the outer side wall of the sheath layer, a groove is provided in the connection sleeve, and an insulating layer is glued to the inner wall of the groove.

[0012] Preferably, the outer side wall of the connecting sleeve is provided with threads, and the insulating layer is made of polyvinyl chloride material.

[0013] Preferably, a connecting plate is fixedly connected to one end of the connecting sleeve away from the thread, and a plurality of connecting plates are symmetrically arranged in a circumference, and a fixing frame is fixedly connected to the other end of the plurality of connecting plates, and the fixing frame is sleeved on the outer side wall of the sheath layer.

[0014] Beneficial effects of the utility model:

[0015] The utility model provides a flame retardant and fireproof cable. The flame retardant effect of the outer surface of the cable can be improved through the sheath layer, the heat dissipation layer and the shielding layer, and the cable can be effectively cooled and the internal temperature of the cable can be reduced. The flame retardant effect of the cable is achieved through the cooperation of the hollow cavity and the flame retardant layer. The double flame retardant effect is achieved through the cooperation of the inside and the outside, thereby improving the flame retardant performance of the cable and preventing the cable from being damaged by external high-temperature combustion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0018] Figure 2 It is a sectional structural stereogram of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the connection assembly of the utility model;

[0020] Figure 4 yes Figure 2 A three-dimensional diagram of the structure.

[0021] Legend: 1. Sheath layer; 2. Heat dissipation layer; 3. Shielding layer; 4. Aluminum base plate; 5. Silicone protective layer; 6. Cable core; 7. Flame retardant layer; 8. Hollow cavity; 9. Fixing strip; 10. Insulating layer; 11. Connecting sleeve; 12. Thread; 13. Connecting plate; 14. Fixing frame; 15. Groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Specific examples are given below.

[0024] See also Figure 1-Figure 4 The utility model provides a flame retardant and fireproof cable, including an aluminum substrate 4, a cable core 6 is penetrated in the aluminum substrate 4, the cable core 6 is provided with multiple groups, the side walls of the multiple groups of cable cores 6 are all wrapped with a silicone protective layer 5, the side wall of the aluminum substrate 4 is provided with a shielding layer 3, the outer side of the shielding layer 3 is provided with a heat dissipation layer 2, the outer side of the heat dissipation layer 2 is provided with a sheath layer 1, the silicone protective layer 5 has a first cavity inside, the first cavity is filled with a flame retardant layer 7, and the aluminum substrate 4 has a hollow cavity 8; when working, in the current prior art, during the use of cables, once a fire occurs in the outside, the cable will quickly burn, which will lead to a larger fire and damage the cable. The sheath layer 1 can prevent external flames from burning the outside of the cable, the heat dissipation layer 2 can effectively increase the internal heat dissipation of the cable, reduce the center temperature of the cable, and prevent the cable from self-igniting due to excessive internal temperature. The shielding layer 3 can shield the interference of external signals on the cable, and effectively ensure the transmission of cable signals. The sheath layer 1 and the heat dissipation layer 2 improve the flame retardant effect of the outer surface of the cable, and can effectively cool the cable and reduce the internal temperature of the cable. The hollow cavity 8 can prevent combustion caused by excessive local temperature of the cable and improve the flame retardant properties of the cable itself. The flame retardant effect of the cable is achieved through the cooperation of the hollow cavity 8 and the flame retardant layer 7. The inside and outside of the cable cooperate to achieve a double flame retardant effect, improve the flame retardant properties of the cable, and avoid damage to the cable caused by external high-temperature combustion.

[0025] Further, such as Figure 2 As shown, the sheath layer 1, the heat dissipation layer 2, the shielding layer 3 and the aluminum substrate 4 are tightly fitted, and the aluminum substrate 4, the silicone protective layer 5 and the cable core 6 are tightly fitted; when working, the sheath layer 1, the heat dissipation layer 2, the shielding layer 3 and the aluminum substrate 4 are tightly fitted, so that the multiple layers cooperate with each other, and the aluminum substrate 4, the silicone protective layer 5 and the cable core 6 are tightly fitted, so that the cable core 6 will not be deformed due to the twisting of the cable.

[0026] Further, such as Figure 2As shown, the shielding layer 3 is made of overlapping soft copper tapes, and the heat dissipation layer 2 is made of graphene material; when working, the shielding layer 3 is made of overlapping soft copper tapes and can just block signal interference, and graphene has good heat dissipation characteristics.

[0027] Further, such as Figure 2 As shown, the sheath layer 1 is made of polyolefin material, and the flame retardant layer 7 is made of glass fiber material; when working, the polyolefin material has low density, good electrical insulation, and high melting temperature, and the glass fiber has strong insulation and heat resistance.

[0028] Further, such as Figure 4 As shown, both ends of the outer side of the sheath layer 1 are fixed with fixing strips 9, and both ends of the sheath layer 1 are rotatably connected with connecting components; during operation, the fixing strips 9 prevent the connecting components from falling off from the side wall of the cable, and the connecting components can be rotated on the side wall of the cable, and the cable is connected to an external device or two groups of cables are connected through the connecting components.

[0029] Further, such as Figure 1 As shown, the connection assembly includes a connection sleeve 11, which is rotatably connected to the outer wall of the sheath layer 1, and a groove 15 is opened in the connection sleeve 11. The inner wall of the groove 15 is glued with an insulating layer 10; when working, the groove 15 of the connection sleeve 11 facilitates the connection between the connection sleeve 11 and other equipment, and also facilitates the gluing of the insulating layer 10, and the insulating layer 10 prevents leakage at the cable connection.

[0030] Further, such as Figure 3 As shown, the outer wall of the connecting sleeve 11 is provided with a thread 12, and the insulating layer 10 is made of polyvinyl chloride material; when working, the thread 12 on the side wall of the connecting sleeve 11 can be connected to the connecting port thread 12 of the external device, and the insulating layer 10 is made of glass fiber material. Polyvinyl chloride has good electrical insulation performance and is not flame retardant.

[0031] Further, such as Figure 3 As shown, a connecting plate 13 is fixedly connected to one end of the connecting sleeve 11 away from the thread 12, and a plurality of connecting plates 13 are symmetrically arranged in a circle, and a fixing frame 14 is fixedly connected to the other end of the plurality of connecting plates 13, and the fixing frame 14 is sleeved on the outer wall of the sheath layer 1; during operation, the cable will be dragged downward due to gravity after being used for a long time, causing the position of the cable connection port to be easily damaged. The present cable is provided with a connecting plate 13 and a fixing frame 14 at one end of the connecting sleeve 11, so that the connecting plate 13 and the fixing frame 14 support the cable to prevent the cable from being damaged near the connection port.

[0032] Working principle: In the current existing technology, during the use of cables, once a fire occurs in the outside, the cables will be quickly burned, which will lead to a larger fire and damage the cables. The flame-retardant and fire-proof cable prevents the external flame from burning the outside of the cable through the sheath layer 1. The heat dissipation layer 2 can effectively increase the internal heat dissipation of the cable, reduce the center temperature of the cable, and prevent the cable from self-igniting due to excessive internal temperature. The shielding layer 3 can shield the interference of external signals on the cable and effectively ensure the transmission of cable signals. The sheath layer 1 and the heat dissipation layer 2 improve the flame-retardant effect of the outer surface of the cable, which can effectively cool the cable and reduce the internal temperature of the cable. The hollow cavity 8 can prevent the combustion caused by excessive local temperature of the cable and improve the flame-retardant performance of the cable itself. The flame-retardant effect of the cable is achieved by the cooperation of the hollow cavity 8 and the flame-retardant layer 7. The inside and outside of the cable cooperate to achieve a double flame-retardant effect, improve the flame-retardant performance of the cable, and avoid damage to the cable caused by external high-temperature combustion. The cable is connected to an external device or two groups of cables are connected through a connecting component. The connecting plate 13 and the fixing frame 14 support the cable to prevent damage to the cable near the connection port.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A flame retardant and fireproof cable, comprising an aluminum substrate (4), characterized in that: The invention comprises an aluminum substrate (4), wherein a cable core (6) is penetrated through the aluminum substrate (4), wherein the cable core (6) is provided in a plurality of groups, wherein the side walls of the plurality of groups of the cable core (6) are all wrapped with a silicone protective layer (5), wherein the side wall of the aluminum substrate (4) is sheathed with a shielding layer (3), wherein a heat dissipation layer (2) is sheathed on the outside of the shielding layer (3), wherein a sheath layer (1) is sheathed on the outside of the heat dissipation layer (2), wherein a first cavity is provided inside the silicone protective layer (5), wherein the first cavity is filled with a flame retardant layer (7), and wherein a hollow cavity (8) is provided inside the aluminum substrate (4).

2. A flame retardant and fireproof cable according to claim 1, characterized in that: The sheath layer (1), the heat dissipation layer (2), the shielding layer (3) and the aluminum substrate (4) are tightly fitted together, and the aluminum substrate (4), the silicone protective layer (5) and the cable core (6) are tightly fitted together.

3. A flame retardant and fireproof cable according to claim 2, characterized in that: The shielding layer (3) is made of soft copper tapes that are overlapped and wrapped, and the heat dissipation layer (2) is made of graphene material.

4. A flame retardant and fireproof cable according to claim 3, characterized in that: The sheath layer (1) is made of polyolefin material, and the flame retardant layer (7) is made of glass fiber material.

5. A flame retardant and fireproof cable according to claim 4, characterized in that: Both ends of the outer side of the sheath layer (1) are fixedly connected with fixing strips (9), and both ends of the sheath layer (1) are rotatably connected with connecting components.

6. A flame retardant and fireproof cable according to claim 5, characterized in that: The connection assembly comprises a connection sleeve (11), the connection sleeve (11) is rotatably connected to the outer wall of the sheath layer (1), a groove (15) is provided in the connection sleeve (11), and an insulating layer (10) is glued to the inner wall of the groove (15).

7. A flame retardant and fireproof cable according to claim 6, characterized in that: The outer wall of the connecting sleeve (11) is provided with a thread (12), and the insulating layer (10) is made of polyvinyl chloride material.

8. The flame retardant and fireproof cable according to claim 7, characterized in that: A connecting plate (13) is fixedly connected to one end of the connecting sleeve (11) away from the thread (12), and a plurality of groups of the connecting plates (13) are symmetrically arranged around the circumference. A fixing frame (14) is fixedly connected to the other end of the plurality of groups of the connecting plates (13), and the fixing frame (14) is sleeved on the outer wall of the sheath layer (1).

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