Environment-friendly high-flame-retardant fireproof anti-dripping cable

Abstract

The utility model discloses an environment-friendly high flame retardant fireproof anti-dripping cable, relates to the cable technology field, and comprises an outer sheath, a steel belt, an inner sheath, a filling layer, an insulating layer, a conductor and a mica tape, the steel belt is arranged in the outer sheath, the inner sheath is arranged in the steel belt, and the filling layer is filled in the inner sheath. According to the environment-friendly high-flame-retardant fireproof drip-proof cable, the low-smoke halogen-free flame-retardant sleeve has good flame retardance and does not generate toxic smoke during combustion, so that the flame retardance of the cable is improved, the mica tape wrapping the outer side of the conductor has good flame retardance, the mica tape is prepared by taking glass wool cloth as a framework, bonding mica paper with organic silicon paint and baking, and the flame-retardant performance of the cable is improved. The friction resistance between the outer sheath and the hand can be increased through the second protruding blocks on the rubber sleeve, so that the anti-skid effect is achieved, and through the simple and convenient mode, the hand of a person is not prone to slipping in the cable pulling process.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable. Background Art

[0002] A cable is made of one or more mutually insulated conductors and an outer insulating protective layer. It is a wire that transmits electricity or information from one place to another. There are many types of cables, and different places require different types of cables. Existing cables still have certain defects when used.

[0003] In the prior art, cables are mainly used for power transmission. Cables are made of conductive materials and can withstand high voltage and high current. Although traditional cables have certain flame retardancy, they have poor fire resistance when used in high temperature environments. Once the cables burn, they will produce more smoke and harmful gases, which can easily cause harm to the human body and pollute the environment, and are less environmentally friendly. Utility Model Content

[0004] The utility model aims to provide an environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable to solve the problem of poor environmental performance of cables currently on the market as mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable, comprising: an outer sheath, a steel belt, an inner sheath, a filling layer, an insulating layer, a conductor and a mica tape, wherein the steel belt is arranged inside the outer sheath, the inner sheath is arranged inside the steel belt, the inner sheath is filled with a filling layer, the filling layer is arranged inside the insulating layer, the conductor is wrapped inside the insulating layer, the mica tape is wrapped around the outside of the conductor, the outside of the insulating layer is wrapped with a protective sleeve, the outside of the protective sleeve is wrapped with insulating paper, and a low-smoke halogen-free flame-retardant sleeve is arranged between the steel belt and the inner sheath.

[0006] Preferably, the low-smoke halogen-free flame-retardant sleeve is made of rubber that does not contain environmental substances such as lead, cadmium, chromium, and mercury, and the main material of the protective sleeve is polyolefin.

[0007] Preferably, the insulating paper is oil-impregnated paper impregnated with a high-viscosity impregnating agent.

[0008] Preferably, a groove is provided on the surface of the outer sheath, and a rubber sheath is provided on the outer side of the outer sheath.

[0009] Preferably, a first protrusion is connected to a side of the rubber sleeve close to the groove.

[0010] Preferably, a second protrusion is connected to the surface of the rubber sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are: the environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable, the low-smoke halogen-free flame-retardant sheath has good flame retardancy, and does not produce toxic smoke when burned, thereby improving the flame retardancy of the cable, the mica tape wrapped around the outside of the conductor has good fire resistance, the mica tape is made of glass fiber cloth as the skeleton, mica paper is bonded with silicone paint, and is made after baking, the second protrusion on the rubber sheath can increase the friction resistance between the outer sheath and the hand, thereby achieving an anti-slip effect, and through this simple and convenient method, it is not easy for the hands of personnel to slip during the process of pulling the cable.

[0012] 1. The main function of the cable is to transmit electricity, but the fire resistance of traditional cables is poor, and the cables are not environmentally friendly after burning. The low-smoke halogen-free flame retardant sleeve has good flame retardancy and does not produce toxic smoke when burning, thereby improving the flame retardancy of the cable. The mica tape wrapped around the outside of the conductor has good fire resistance. The mica tape is made of glass fiber cloth as the skeleton, and the mica paper is bonded with silicone paint and baked. The protective sleeve wrapped around the outside of the insulating layer can extinguish the flame by itself when the fire source is small, and the smoke is small, which is harmless to the human body. The insulating paper wrapped around the outside of the protective sleeve is oil-impregnated paper. The impregnating agent on the insulating paper does not flow within the working temperature range and is in a plastic solid state, thereby achieving a non-drip effect. At the same time, the cable can be laid vertically. The mica tape can improve the fire resistance of the cable. At the same time, the protective sleeve and the low-smoke halogen-free flame retardant sleeve have high flame retardancy, and no harmful gases will be produced after burning, and the environmental protection is good.

[0013] 2. During the cable laying process, personnel need to pull one end of the cable. The surface of traditional cables is relatively smooth, which makes it easy for personnel to slip when pulling the cables. When the rubber sleeve moves, it can drive the first protrusion and the second protrusion to move. Since the rubber sleeve itself has elastic characteristics, the rubber sleeve can be connected to the outside of the outer sleeve, and the rubber sleeve can be rotated so that the first protrusion on the inner wall of the rubber sleeve can be connected with the groove on the outside of the outer sleeve. At this time, the personnel can hold the outer sleeve and the rubber sleeve and pull the outer sleeve. The second protrusion on the rubber sleeve can increase the friction resistance between the outer sleeve and the hand, thereby achieving an anti-slip effect. Through this simple and convenient method, it is not easy for personnel to slip when pulling the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the cutaway structure of the main view of the utility model;

[0015] Figure 2 It is a left-side structural schematic diagram of the utility model;

[0016] Figure 3 This is a schematic diagram of the main cutaway structure of the rubber sleeve of the utility model;

[0017] Figure 4 It is a three-dimensional structural schematic diagram of the rubber sleeve of the utility model.

[0018] In the figure: 1. outer sheath; 2. steel tape; 3. inner sheath; 4. filling layer; 5. insulating layer; 6. conductor; 7. mica tape; 8. protective sleeve; 9. insulating paper; 10. low-smoke halogen-free flame retardant sleeve; 11. groove; 12. rubber sleeve; 13. first protrusion; 14. second protrusion. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1 It can be seen that the utility model provides a technical solution: an environmentally friendly highly flame-retardant and fire-resistant drip-proof cable, comprising: an outer sheath 1, a steel tape 2, an inner sheath 3, a filling layer 4, an insulating layer 5, a conductor 6 and a mica tape 7;

[0021] The outer sheath 1 is provided with a steel belt 2 inside, the steel belt 2 is provided with an inner sheath 3 inside, the inner sheath 3 is filled with a filling layer 4 inside, the filling layer 4 is provided with an insulating layer 5 inside, and the insulating layer 5 is wrapped with a conductor 6 inside;

[0022] A mica tape 7 is wrapped around the outside of the conductor 6, a protective sleeve 8 is wrapped around the outside of the insulating layer 5, an insulating paper 9 is wrapped around the outside of the protective sleeve 8, a low-smoke halogen-free flame-retardant sleeve 10 is arranged between the steel tape 2 and the inner sheath 3, the low-smoke halogen-free flame-retardant sleeve 10 is made of rubber that does not contain environmental substances such as lead, cadmium, chromium, and mercury, the main material of the protective sleeve 8 is polyolefin, and the insulating paper 9 is oil-impregnated paper impregnated with a high-viscosity impregnating agent.

[0023] In specific implementation, the main function of the cable is to transmit electricity, but the fire resistance of traditional cables is poor, and the cable is not environmentally friendly after burning. For this reason, a low-smoke halogen-free flame retardant sleeve 10 can be installed on the outside of the inner sheath 3. The low-smoke halogen-free flame retardant sleeve 10 has good flame retardancy and does not produce toxic smoke when burned, thereby improving the flame retardancy of the cable. The mica tape 7 wrapped around the outside of the conductor 6 has good fire resistance. The mica tape 7 is made of glass fiber cloth as the skeleton, and the mica paper is bonded with silicone paint and baked. The protective sleeve 8 wrapped around the outside of the insulating layer 5 can extinguish the flame by itself when the fire source is small, and the smoke is small, which is harmless to the human body. The insulating paper 9 wrapped around the outside of the protective sleeve 8 is oil-impregnated paper. The insulating paper 9 is a composite insulating material made of fiber paper impregnated with insulating oil. The impregnant on the insulating paper 9 does not flow within the working temperature range and is in a plastic solid state, thereby achieving a no-drip effect. At the same time, the cable can be laid vertically.

[0024] See also Figure 1 It can be seen that the fire resistance of the cable can be improved by the mica tape 7. At the same time, the protective sleeve 8 and the low-smoke halogen-free flame retardant sleeve 10 have high flame retardancy and will not produce harmful gases after burning, so the environmental protection is good.

[0025] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 It can be seen that a groove 11 is provided on the surface of the outer sheath 1, a rubber sheath 12 is provided on the outer side of the outer sheath 1, a first protrusion 13 is connected to the side of the rubber sheath 12 close to the groove 11, and a second protrusion 14 is connected to the surface of the rubber sheath 12, and the second protrusions 14 are evenly spaced and distributed on the outer side of the rubber sheath 12.

[0026] During specific implementation, during the cable laying process, personnel need to pull one end of the cable. The surface of traditional cables is relatively smooth, which makes it easy for personnel to slip when pulling the cable. For this reason, the rubber sleeve 12 can be pushed. When the rubber sleeve 12 moves, it can drive the first protrusion 13 and the second protrusion 14 to move. Since the rubber sleeve 12 itself has elastic characteristics, the rubber sleeve 12 can be sleeved on the outside of the outer sheath 1. At this time, the inner wall of the rubber sleeve 12 will be close to the outside of the outer sheath 1, and the rubber sleeve 12 is rotated so that the first protrusion 13 on the inner wall of the rubber sleeve 12 can be connected with the groove 11 on the outside of the outer sheath 1, so that the rubber sleeve 12 can be tightly sleeved on the outside of the outer sheath 1. At this time, the personnel can hold the outer sheath 1 and the rubber sleeve 12, and pull the outer sheath 1. The second protrusion 14 on the rubber sleeve 12 can increase the friction resistance between the outer sheath 1 and the hand, thereby achieving an anti-slip effect.

[0027] See also Figure 1 , Figure 2 , Figure 3 and Figure 4It can be seen that this simple and convenient method makes it less likely for people's hands to slip when pulling the cable.

[0028] To sum up, when using the environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable, the cable is based on the conductive properties of the conductor 6 and the principle of electromagnetic induction. Through the conductive properties of the conductor 6, electric energy can be transmitted to a distant place in the cable to realize the supply of electricity. The cable is a prior art and will not be described in detail here. The impregnating agent on the insulating paper 9 does not flow within the operating temperature range and is in a plastic solid state, thereby achieving a non-drip effect. At the same time, the cable can be laid vertically, and the fire resistance of the cable can be improved by the mica tape 7. At the same time, the protective sleeve 8 and the low-smoke halogen-free flame-retardant sleeve 10 have high flame retardancy, and no harmful gases are generated after burning, and the environmental protection is good. The second protrusion 14 on the rubber sleeve 12 can increase the friction resistance between the outer sheath 1 and the hand, thereby achieving an anti-slip effect. Through this simple and convenient method, it is not easy for the hands of personnel to slip during the process of pulling the cable. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0029] 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. An environmentally friendly highly flame-retardant, fire-resistant and drip-proof cable, comprising: An outer sheath (1), a steel strip (2), an inner sheath (3), a filling layer (4), an insulating layer (5), a conductor (6) and a mica tape (7), characterized in that: A steel strip (2) is arranged inside the outer sheath (1), an inner sheath (3) is arranged inside the steel strip (2), a filling layer (4) is filled inside the inner sheath (3), an insulating layer (5) is arranged inside the filling layer (4), and a conductor (6) is wrapped inside the insulating layer (5); A mica tape (7) is wrapped around the outside of the conductor (6); the outside of the insulating layer (5) is wrapped with a protective sleeve (8); the outside of the protective sleeve (8) is wrapped with insulating paper (9); and a low-smoke halogen-free flame-retardant sleeve (10) is provided between the steel tape (2) and the inner sheath (3).

2. The environmentally friendly highly flame-retardant and fire-resistant drip-proof cable according to claim 1, characterized in that: The low-smoke, halogen-free flame-retardant sleeve (10) is made of rubber that does not contain environmentally friendly substances such as lead, cadmium, chromium, and mercury, and the main material of the protective sleeve (8) is polyolefin.

3. The environmentally friendly highly flame-retardant and fire-resistant anti-drip cable according to claim 1, characterized in that: The insulating paper (9) is oil-impregnated paper impregnated with a high-viscosity impregnating agent.

4. The environmentally friendly highly flame-retardant and fire-resistant drip-proof cable according to claim 1, characterized in that: A groove (11) is provided on the surface of the outer sheath (1), and a rubber sheath (12) is sleeved on the outer side of the outer sheath (1).

5. The environmentally friendly highly flame-retardant and fire-resistant anti-drip cable according to claim 4, characterized in that: A first protrusion (13) is connected to one side of the rubber sleeve (12) close to the groove (11).

6. The environmentally friendly highly flame-retardant and fire-resistant anti-drip cable according to claim 5, characterized in that: A second convex block (14) is connected to the surface of the rubber sleeve (12).

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