Anti-treading cable

Abstract

The utility model discloses an anti-treading cable, which relates to the technical field of cables and comprises an outer skin layer, an elastic element and a protective inner container, a reinforcing protective layer is wrapped in the outer skin layer, a filling layer is arranged in the reinforcing protective layer, an anti-breaking layer is arranged between the filling layer and the reinforcing protective layer, and the elastic element is arranged in the protective inner container. A cable core is arranged on one side of the filling layer, an elastic element is arranged on one side of the cable core, and a protective inner container is arranged in the middle of the elastic element. According to the utility model, the protection inner container can effectively play a role in safety protection when a fire disaster happens to the cable, the elastic elements are arranged at intervals in the cable, the purpose of preventing treading can also be achieved, and the reinforced protection layer and the anti-breaking layer can also prolong the service life of the cable.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, specifically to a cable that is resistant to being stepped on. Background Technology

[0002] A cable is an assembly of conductors used to transmit electrical or telecommunication signals. It consists of one or more electrical conductors (usually metal), is wrapped in insulating material, and is further protected by an outer protective layer.

[0003] For example, patent application number CN202323382494.8 describes a self-protective fireproof cable, which includes a cable jacket, a cable core disposed inside the cable jacket, and a filler sleeve and a self-protective core embedded between the cable jacket and the cable core. The self-protective core includes a core sleeve and a flow guide cabinet fixedly connected to one side of the core sleeve. This invention specifically relates to the field of self-protective protective cable technology. By providing a core sleeve filled with 1211 fire extinguishing material, after the cable catches fire, the core sleeve will expand due to heat, and the sealing ring will burst. The 1211 fire extinguishing material inside the core sleeve will then penetrate the sealing ring and flow into the inner core ring through the bursting port and the flow guide cabinet to extinguish the fire. This allows the device to extinguish fires without external force during a fire, and also to control the fire promptly by stepping on the cable to cause the sealing ring to burst when the flame temperature is not high, the fire is urgent, and the sealing ring has not reached the critical point of bursting. This provides good timely damage mitigation performance.

[0004] Although the aforementioned cable can be tamped down to cause the sealing ring to burst, thus controlling the fire in time, if the cable itself is not designed to resist being tamped down, the middle section of the cable can easily be damaged when it is tamped down, thus making it unable to supply cable. Utility Model Content

[0005] The purpose of this invention is to provide a trampling-resistant cable to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A trampling-resistant cable includes an outer sheath, an elastic element, and a protective inner liner. The outer sheath is wrapped with a reinforcing protective layer, and the reinforcing protective layer is filled with a filling layer. An anti-breakage layer is provided between the filling layer and the reinforcing protective layer. A cable core is provided on one side of the filling layer, and an elastic element is provided on one side of the cable core. The protective inner liner is provided in the middle of the elastic element.

[0008] Furthermore, the outer sheath of the cable is made of polyvinyl chloride.

[0009] Furthermore, the elastic element is an elastic component made of metal.

[0010] Furthermore, the filling layer is fireproof putty.

[0011] Furthermore, the anti-fracture layer is a glass fiber rope.

[0012] Furthermore, the reinforced protective layer is a steel strip armor.

[0013] Furthermore, the protective inner liner is made of fire-resistant material, including difluorochlorobromomethane, ammonium phosphate powder, and sodium bicarbonate.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model can effectively prevent cable fires by setting a protective inner liner. The elastic elements set at intervals inside the cable can also prevent trampling. Furthermore, the reinforced protective layer and anti-breakage layer can also increase the service life of the cable itself. Attached Figure Description

[0016] Figure 1 This is a side view schematic diagram of a cable structure that is resistant to being stepped on, according to this utility model;

[0017] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0018] Figure 3 This is a schematic diagram of a partial three-dimensional structure of a cable designed to withstand being stepped on.

[0019] In the picture:

[0020] 1. Outer sheath; 2. Reinforcing protective layer; 3. Anti-fracture layer; 4. Filler layer; 5. Elastic element; 6. Cable core; 7. Protective inner liner. Detailed Implementation

[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0022] like Figure 1-3This invention provides a trampling-resistant cable, comprising an outer sheath 1, an elastic element 5, and a protective inner liner 7. The outer sheath 1 is internally wrapped with a reinforcing protective layer 2, and the reinforcing protective layer 2 contains a filling layer 4. A breakage-resistant layer 3 is located between the filling layer 4 and the reinforcing protective layer 2. A cable core 6 is located on one side of the filling layer 4, and an elastic element 5 is located on one side of the cable core 6. The protective inner liner 7 is located in the middle of the elastic element 5. This invention effectively protects the cable from fire by using the protective inner liner 7. The elastic elements 5, which are placed at intervals inside the cable, also prevent trampling. Furthermore, the reinforcing protective layer 2 and the breakage-resistant layer 3 can increase the service life of the cable itself.

[0023] As one implementation method, the advantage of using polyvinyl chloride (PVC) as the outer sheath material for cables is that PVC itself has good strength and is resistant to many chemicals, and does not react chemically with common acids and alkalis.

[0024] As one implementation method, the elastic element 5 is an elastic element made of metal, which can effectively increase the cable's resistance to being stepped on.

[0025] As one implementation method, the filling layer 4 is fireproof putty, which is mainly used to seal holes in buildings, cable trays, busbars and other parts to prevent flames and smoke from spreading through the holes when a fire spreads, thus playing a role in preventing the spread of fire and smoke.

[0026] As one implementation method, the anti-fracture layer 3 is a fiberglass rope, which is a rope made of fiberglass. Fiberglass is a high-performance inorganic non-metallic material with excellent insulation, strong heat resistance, good corrosion resistance, and high mechanical strength.

[0027] As one implementation method, the reinforced protective layer 2 is steel tape armor. Steel tape armor involves wrapping a layer of steel tape around the outer layer of the cable. The steel tape provides mechanical protection, enhancing the cable's resistance to pressure and impact, preventing damage from external forces during laying and operation, and improving the cable's service life and safety. It is commonly used in environments prone to mechanical damage, such as direct-buried cables and cables crossing railways and highways.

[0028] In one embodiment, the protective liner 7 is made of fire-resistant material, comprising difluorochlorobromomethane, ammonium phosphate dry powder, and sodium bicarbonate, wherein difluorochlorobromomethane accounts for 20%, sodium bicarbonate accounts for 30%, and difluorochlorobromomethane accounts for 50%.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A trampling-resistant cable, comprising an outer sheath (1), an elastic element (5), and a protective inner liner (7), characterized in that, The outer skin layer (1) is wrapped with a reinforcing protective layer (2), and a filling layer (4) is provided inside the reinforcing protective layer (2). A breakage prevention layer (3) is provided in the middle of the filling layer (4) and the reinforcing protective layer (2). A cable core (6) is provided on one side of the filling layer (4), and an elastic element (5) is provided on one side of the cable core (6). A protective inner liner (7) is provided in the middle of the elastic element (5).

2. The trampling-resistant cable according to claim 1, characterized in that, The cable sheath is made of polyvinyl chloride.

3. The trampling-resistant cable according to claim 1, characterized in that, The elastic element (5) is an elastic element made of metal.

4. The trampling-resistant cable according to claim 1, characterized in that, The filling layer (4) is fireproof putty.

5. The trampling-resistant cable according to claim 4, characterized in that, The anti-fracture layer (3) is a glass fiber rope.

6. The trampling-resistant cable according to claim 1, characterized in that, The reinforced protective layer (2) is a steel belt armor.

7. The trampling-resistant cable according to claim 1, characterized in that, The protective inner liner (7) is made of fireproof material, and the protective inner liner (7) includes difluorochlorobromomethane, ammonium phosphate powder and sodium bicarbonate.

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