Anti-winding wire cable

Abstract

The utility model discloses an anti-winding wire cable, which comprises a cable body and further comprises an outer sheath arranged on the outer side of the cable body, anti-winding strips which are distributed in an annular array around the circle center of the outer sheath are fixedly arranged on the periphery of the outer sheath, and the cable body comprises a cable core and an inner sheath arranged on the periphery of the cable core. The inner sheath is filled with an insulating filler located between the cable cores, the anti-winding strip comprises a rubber sleeve attached and fixed to the periphery of the outer sheath and further comprises a fire extinguishing dry powder bag arranged in the rubber sleeve, and the rubber sleeve is filled with flame-retardant rubber particles located on the outer side of the fire extinguishing dry powder bag. According to the utility model, gaps exist between adjacent cables under the action of the winding strips, the cable laying can be guided, the cables are effectively prevented from being mutually wound during laying, and a better fire extinguishing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to an anti-entanglement electric wire and cable. Background Art

[0002] Wires and cables refer to materials used for power, electrical and related transmission purposes. There is no strict boundary between "wires" and "cables". Usually products with a small number of cores, small diameter and simple structure are called wires, those without insulation are called bare wires, and the others are called cables. Conductor cross-sectional areas that are larger (greater than 6 square millimeters) are called large cables, and those that are smaller (less than or equal to 6 square millimeters) are called small wires, also known as cloth wires.

[0003] During the cable laying process, due to the large number of cables laid in the cable well, cables are prone to entanglement, resulting in the cable being pulled not smoothly, and the friction between the entangled cables is large. Hard traction can easily cause the cable sheath to be damaged and lose its protective function.

[0004] Application No. CN202121030672.9 discloses an anti-entanglement wire and cable, including a rubber layer and an outer protective layer, and also includes an anti-entanglement structure that can increase the strength of the cable itself, a flame retardant structure that prevents burning and prolongs rescue time, and a protective structure that increases cable protection. The utility model is equipped with a support rod and an auxiliary rod, and the support force of the cable body can be increased by providing the support rod and the auxiliary rod, thereby avoiding the entanglement of the cable body due to its own soft characteristics, increasing the applicability during use, and solving the problem of cable entanglement.

[0005] When encountering a right-angle turn in the cable well during the cable laying process, it is difficult for the entire cable to pass through, which brings great inconvenience to the cable laying and affects the laying efficiency of the cable in the cable well. For this reason, we propose an anti-entanglement wire and cable. Utility Model Content

[0006] The main purpose of the utility model is to provide an anti-entanglement wire and cable. There are gaps between adjacent cables, which can also play a guiding role in cable laying, effectively avoiding the cables from being entangled with each other during laying, having a better fire extinguishing effect, and can effectively solve the problems in the background technology.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] An anti-entanglement wire and cable comprises a cable body and an outer sheath arranged outside the cable body, wherein the outer periphery of the outer sheath is fixedly provided with anti-entanglement strips distributed in a circular array about the center of the outer sheath;

[0009] The cable body comprises a cable core and an inner sheath arranged on the outer periphery of the cable core, wherein the inner sheath is filled with an insulating filler located between the cable cores;

[0010] The anti-winding strip includes a rubber sleeve fixedly attached to the outer periphery of the outer sheath, and also includes a fire extinguishing dry powder bag arranged inside the rubber sleeve. The interior of the rubber sleeve is filled with flame retardant rubber particles located outside the fire extinguishing dry powder bag.

[0011] The fire extinguishing dry powder bag is a completely sealed air bag with a high internal pressure and is filled with a large amount of fire extinguishing dry powder. After the fire spreads and melts the rubber sleeve, the flame retardant rubber particles fall out first and adhere to the periphery of the cable body, playing a flame retardant role. When the fire is large and the flame retardant rubber particles cannot play a flame retardant role, the fire extinguishing dry powder bag is burned through and the high-pressure gas is instantly ejected, spraying the fire extinguishing dry powder in the form of an explosion, playing the role of a dry powder fire extinguisher.

[0012] Preferably, arc-shaped rubber pads distributed in a ring array with respect to the inner sheath are fixedly connected between the inner sheath and the outer sheath, and the interior of the arc-shaped rubber pads is filled with elastic fillers.

[0013] Preferably, a connecting belt is fixedly connected between the peripheries of adjacent arc-shaped rubber pads, the inner side of the connecting belt is filled with an anti-corrosion layer arranged to fit the periphery of the inner sheath, and the outer side of the connecting belt is filled with a flexible strip arranged to fit the inner periphery of the outer sheath.

[0014] Preferably, a steel strand is fitted on the inner circumference of the outer sheath, and the steel strand passes through the elastic filler.

[0015] Preferably, a plurality of rubber strips are integrally formed on the outer circumference of the inner sheath, and a receiving groove adapted to the rubber strips is constructed on the inner side of the elastic filler.

[0016] Preferably, the number of the anti-winding strips is at least three.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] 1. The anti-entanglement wire and cable, through the anti-entanglement strip, when laying the cable, under the action of a rubber sleeve with a certain thickness, a gap is created between the outer sheaths of adjacent cables, thereby preventing the cables from rubbing against each other and causing the outer sheaths to be damaged. In addition, the rubber sleeves distributed along the cable axis and the rubber sleeves on the outer periphery of the outer sheaths of the later laid cables slide along the rubber sleeves of the laid cables, thus guiding the laying of the cables and effectively preventing the cables from being entangled with each other during laying. In addition, when the cable body is on fire, the fire extinguishing dry powder filled inside can be sprayed out at a high speed, thereby achieving a better fire extinguishing effect.

[0019] 2. The anti-entanglement wire and cable can form an elastic deformation layer with a certain thickness around the cable body by means of the arc-shaped rubber pad, steel strand, elastic filler, connecting belt, anti-corrosion layer and flexible strip. Whether the cable body is stored or passes through the right-angle turn of the cable well, it can produce a certain elastic deformation to provide a buffer for the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of an anti-entanglement wire and cable.

[0021] Figure 2 The utility model is a schematic structural diagram of a cable body of an anti-entanglement wire and cable.

[0022] Figure 3 The utility model is a front cross-sectional view of an anti-entanglement wire and cable.

[0023] Figure 4 The utility model is a cross-sectional view of an anti-tangle strip of an anti-tangle wire and cable.

[0024] In the figure: 1. Cable body; 101. Cable core; 102. Insulating filler; 103. Inner sheath; 104. Rubber strip; 2. Outer sheath; 3. Arc rubber pad; 4. Steel strand; 5. Elastic filler; 6. Connecting belt; 7. Anti-corrosion layer; 8. Flexible strip; 9. Anti-entanglement strip; 91. Rubber sleeve; 92. Flame-retardant rubber particles; 93. Fire-extinguishing dry powder bag. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0026] like Figure 1-4As shown, an anti-winding wire and cable comprises a cable body 1, and also comprises an outer sheath 2 arranged outside the cable body 1, the outer periphery of the outer sheath 2 is fixedly provided with anti-winding strips 9 distributed in a circular array about the center of the outer sheath 2, and the number of the anti-winding strips 9 is set to at least three, the cable body 1 comprises a cable core 101 and an inner sheath 103 arranged on the outer periphery of the cable core 101, the inner sheath 103 is filled with an insulating filler 102 located between the cable cores 101, the anti-winding strip 9 comprises a rubber sleeve 91 fixed to the outer periphery of the outer sheath 2, and also comprises an inner sheath 91 arranged inside the rubber sleeve 91 The fire extinguishing dry powder bag 93, the interior of the rubber sleeve 91 is filled with flame retardant rubber particles 92 located on the outside of the fire extinguishing dry powder bag 93, the fire extinguishing dry powder bag 93 is a completely sealed air bag with a high internal pressure and is filled with a large amount of fire extinguishing dry powder. After the fire spreads and melts the rubber sleeve 91, the flame retardant rubber particles 92 fall out first and adhere to the outer periphery of the cable body 1 to play a flame retardant role. When the fire is large and the flame retardant rubber particles 92 cannot play a flame retardant role, the fire extinguishing dry powder bag 93 is burned through, and the high-pressure gas is instantly ejected, and the fire extinguishing dry powder is ejected in the form of an explosion, playing the role of a dry powder fire extinguisher.

[0027] In order to form an elastic buffer structure on the outside of the cable body 1 and to provide protection for the cable body 1 when it is stored and when it passes through a right-angle turn during laying, an arc-shaped rubber pad 3 distributed in a ring array about the inner sheath 103 is fixedly connected between the inner sheath 103 and the outer sheath 2. The interior of the arc-shaped rubber pad 3 is filled with an elastic filler 5. The elastic filler 5 can specifically be a highly elastic rubber strip. When the outer sheath 2 is squeezed, the rubber strip can be elastically deformed and contracted inward to avoid direct pressure on the cable body 1. A connecting belt 6 is fixedly connected between the peripheries of adjacent arc-shaped rubber pads 3. The inner side of the connecting belt 6 is filled with an anti-corrosion layer 7 arranged to fit the periphery of the inner sheath 103. The anti-corrosion layer 7 can be selected after hardening. The epoxy resin strip, the anti-corrosion layer 7 is tightly fitted to the outer periphery of the inner sheath 103 to prevent the inner sheath 103 from contacting the outside air and causing oxidation corrosion, and the outer side of the connecting belt 6 is filled with a flexible strip 8 that fits the inner periphery of the outer sheath 2. The flexible strip 8 can be made of common non-woven PP rope, which is used to fill the gap between the connecting belt 6 and the outer sheath 2. The inner periphery of the outer sheath 2 is fitted with a steel strand 4, and the steel strand 4 passes through the elastic filler 5. The outer periphery of the inner sheath 103 is integrally formed with a plurality of rubber strips 104, and the inner side of the elastic filler 5 is constructed with a receiving groove that is compatible with the rubber strip 104. Through the rubber strip 104 and the elastic filler 5, the inner sheath 103 and the anti-corrosion layer 7 can form a stable connection structure.

[0028] It should be noted that the utility model is an anti-entanglement wire and cable. When laying, the traction rope of the traction machine is fixedly connected to the end of the cable body 1, and then the cable body 1 is driven through the cable well by winding the traction rope to complete the laying operation. When the cable body 1 is laid again later, under the action of the anti-entanglement strip 9 on the outer periphery of the outer sheath 2 of the laid cable body 1 and the anti-entanglement strip 9 on the outer periphery of the outer sheath 2 of the traction cable body 1, under the action of the rubber sleeve 91 outside the anti-entanglement strip 9, the laid cable body 1 can be guided forward to prevent the cable body 1 from being entangled. When the cable bodies 1 are overlapped, a gap is created between the outer sheaths 2 of the cable bodies 1 under the action of the rubber sleeve 91, thereby avoiding severe friction between the outer sheath 2 on the outside of the cable body 1 and effectively protecting the integrity of the outer sheath 2. When the cable body 1 is on fire, after the fire spreads and melts the rubber sleeve 91, the flame retardant rubber particles 92 fall out first and adhere to the outer periphery of the cable body 1, and the fire extinguishing dry powder bag 93 is burned through, and the high-pressure gas is instantly ejected, and the fire extinguishing dry powder is ejected in the form of an explosion, which acts as a dry powder fire extinguisher to suppress the fire.

[0029] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. 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, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-tangle wire and cable, comprising a cable body (1), characterized in that: It also comprises an outer sheath (2) arranged outside the cable body (1), wherein the outer periphery of the outer sheath (2) is fixedly provided with anti-winding strips (9) distributed in a circular array about the center of the outer sheath (2); The cable body (1) comprises a cable core (101) and an inner sheath (103) arranged on the outer periphery of the cable core (101); the inner sheath (103) is filled with an insulating filler (102) located between the cable cores (101); The anti-winding strip (9) comprises a rubber sleeve (91) fixedly attached to the outer periphery of the outer sheath (2), and also comprises a fire extinguishing dry powder bag (93) arranged inside the rubber sleeve (91); the interior of the rubber sleeve (91) is filled with flame retardant rubber particles (92) located outside the fire extinguishing dry powder bag (93).

2. The anti-entanglement wire and cable according to claim 1, characterized in that: The inner sheath (103) and the outer sheath (2) are fixedly connected to arc-shaped rubber pads (3) distributed in a ring array with respect to the inner sheath (103), and the interior of the arc-shaped rubber pads (3) is filled with elastic fillers (5).

3. The anti-entanglement wire and cable according to claim 2, characterized in that: A connecting belt (6) is fixedly connected between the peripheries of adjacent arc-shaped rubber pads (3), the inner side of the connecting belt (6) is filled with an anti-corrosion layer (7) arranged to fit the periphery of the inner sheath (103), and the outer side of the connecting belt (6) is filled with a flexible strip (8) arranged to fit the inner periphery of the outer sheath (2).

4. The anti-entanglement wire and cable according to claim 2, characterized in that: A steel strand (4) is fitted on the inner circumference of the outer sheath (2), and the steel strand (4) passes through the elastic filler (5).

5. The anti-entanglement wire and cable according to claim 2, characterized in that: A plurality of rubber strips (104) are integrally formed on the outer circumference of the inner protective sleeve (103), and a receiving groove adapted to the rubber strips (104) is constructed on the inner side of the elastic filler (5).

6. The anti-entanglement wire and cable according to claim 1, characterized in that: The number of the anti-winding strips (9) is set to be at least three.

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