Fire-fighting electric wire with high shear resistance

Abstract

The utility model discloses a fire-fighting wire with high shear resistance, and belongs to the technical field of fire-fighting cables. The fire-fighting electric wire with the high shear resistance comprises an inner core layer, the inner core layer is composed of a battery cell and an inner mica layer, the outer portion of the inner core layer is connected with a functional layer in a wrapping mode, the functional layer comprises an isolation layer, the outer side of the isolation layer is connected with an outer mica layer in a wrapping mode, the outer side of the functional layer is connected with a shear resistance layer in a wrapping mode, and the shear resistance layer comprises an annular wire hoop. The outer side of the wire is provided with a wire hoop, the outer side of the wire hoop is provided with anti-shearing metal wires in a circumferential array mode, the anti-shearing metal wires and the wire hoop are connected in a hot melting mode, the anti-shearing layer is connected with an outer layer in a wrapping mode, the outer layer comprises a rubber layer, and the anti-shearing layer is located in the rubber layer. And the inner mica layer and the outer mica layer are utilized, so that heat insulation protection can be conveniently carried out on the internal battery core, and the fire resistance during use is improved.

Description

Technical Field

[0001] The utility model specifically relates to a fire-fighting electric wire with high shear resistance, belonging to the technical field of fire-fighting cables. Background Art

[0002] Fire wire is a special cable used in fire protection system. Fire wire is mainly divided into fire alarm wire and fire extinguishing system control wire. It has special properties such as high temperature tolerance, low smoke and non-toxicity, corrosion resistance, etc. to ensure normal operation and personnel escape in the event of a fire. If ordinary wires are used, it may cause the fire protection system to fail and even aggravate the development of the fire because it is difficult to withstand the erosion of high temperature and smoke. In addition, when using fire wires, in order to improve the stability during use, it is also necessary to have a strong shear resistance effect to avoid being cut off when subjected to shear force, which makes the fire protection system unable to be used normally. Therefore, a fire wire with high shear resistance is needed.

[0003] For example, the Chinese utility model patent with application number: CN201620513797.X provides a high-strength anti-shear cable, which includes an outermost protective layer and a cable core arranged in the protective layer, and one or more anti-shear strips perpendicular to the protective layer are evenly arranged around the protective layer outside the protective layer, and a cavity is formed between two adjacent anti-shear strips, and an anti-shear layer is arranged in each cavity. However, it only relies on the anti-shear layer to protect the cable core, and when it is subjected to a large shear force, it is also easy to break, and when in use, the fire resistance effect is poor. Utility Model Content

[0004] The utility model aims to provide a fire-fighting wire with high shear resistance to address the deficiencies of the prior art.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: a fire-fighting wire with high shear resistance, comprising an inner core layer, the outer coating of the inner core layer is connected with a functional layer, and the outer coating of the functional layer is connected with a shear-resistant layer, the shear-resistant layer comprises a ring-shaped wire hoop, and the outer side of the wire hoop is provided with a shear-resistant metal wire in a circumferential array, the shear-resistant layer is coated with an outer layer, the outer layer comprises a rubber layer, and the shear-resistant layer is located inside the rubber layer. When the inner core layer is produced, the functional layer is coated on the inner core layer layer by layer to form the functional layer, and then the wire hoop is evenly sleeved on the outer side of the functional layer, and the shear-resistant layer is The metal wire is hot-melt connected to the wire hoop, and finally the anti-shear layer is covered by the outer layer to form the fire-fighting wire. When in use, the wire hoop and the anti-shear metal wire in the anti-shear layer form an outer skeleton state on the outside of the functional layer. When encountering shear force, the wire hoop and the anti-shear metal wire are used to block it, thereby improving the anti-shear effect of the technical solution and preventing cutting. When in use, the functional layer also improves the fire resistance of the technical solution, improves the stability when used for fire fighting, and the rubber layer improves the friction and corrosion resistance of the outer surface when in use, thereby improving the overall performance of the technical solution and facilitating use.

[0006] Preferably, the inner core layer is composed of a battery core and an inner mica layer. The battery core is made of conductive threads that are spirally interwoven into a bundle structure. The inner mica layer covers the gaps between the outer sides of the conductive threads and the outside of the battery core. A plurality of conductive threads are hinged and woven into a spiral bundle to improve the conductive stability during use. The inner mica layer also facilitates insulation and heat insulation of the outside of the battery core, thereby improving the stability of use.

[0007] Preferably, the functional layer includes an isolation layer, which is made of glass fiber yarn and covers the outer side of the inner core layer. The outer side of the isolation layer is covered and connected with an outer mica layer. The isolation layer improves the insulation and overall mechanical strength during use, and the outer mica layer further improves the fire resistance during use.

[0008] Preferably, the outer side of the outer mica layer is coated and connected with a fabric woven layer, and the fabric woven layer shapes the outer mica layer. Through the fabric woven layer, it is convenient to shape the outer mica layer outside the functional layer, and the inner mica layer and the outer mica layer are both in powder form, and the fabric woven layer is used to prevent looseness.

[0009] Preferably, the outer side of the fabric braided layer is coated and connected with a shielding layer, and the outer side of the shielding layer is fixedly connected to the inner side of the rubber layer. Through the shielding layer, the interference of external factors on the technical solution is reduced, and the stability during use is improved.

[0010] Preferably, the wire hoop is made of hard plastic and is distributed in an array on the outside of the functional layer. The shear-resistant metal wire and the wire hoop are hot-melt connected. By adopting the hot-melt connection, when shearing occurs in the present technical solution, the shearing position causes the shear-resistant metal wire to be subjected to force, and the wire hoops located on both sides of the shearing position exert blocking force on both sides of the shear-resistant metal wire, thereby further improving the anti-shear effect.

[0011] Preferably, the shear-resistant metal wire is made of fine steel wire that is spirally wound into a bundle structure to improve the shear-resistant effect during use.

[0012] Preferably, the outer side of the rubber layer forms anti-skid protrusions distributed in a circumferential array when coated, which improves the anti-friction ability and also improves the anti-skid effect when in use.

[0013] The beneficial effects of the utility model are as follows: by adopting the wire hoop and the shear-resistant metal wire in the shear-resistant layer, an exoskeleton state is formed on the outside of the wire, which has a strong shear-resistant performance, and by utilizing the inner mica layer and the outer mica layer, the internal battery core is conveniently insulated and protected, thereby improving the fire resistance during use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 It is a cross-sectional view of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the inner core layer in the utility model;

[0017] Figure 4 It is a structural schematic diagram of the functional layer in the utility model;

[0018] Figure 5 It is a structural schematic diagram of the shear-resistant layer in the utility model;

[0019] Figure 6 It is a schematic diagram of the structure of the shear-resistant metal wire in the utility model.

[0020] In the figure: 1, inner core layer; 101, battery core; 102, inner mica layer; 2, functional layer; 201, isolation layer; 202, outer mica layer; 203, fabric braided layer; 204, shielding layer; 3, shear-resistant layer; 301, wire hoop; 302, shear-resistant metal wire; 4, outer layer; 401, rubber layer; 402, anti-slip protrusions. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 6 As shown, a fire-fighting wire with high shear resistance includes an inner core layer 1, the outer coating of the inner core layer 1 is connected with a functional layer 2, and the outer coating of the functional layer 2 is connected with a shear-resistant layer 3, the shear-resistant layer 3 includes a ring-shaped wire hoop 301, and the outer side of the wire hoop 301 is provided with a shear-resistant metal wire 302 in a circumferential array, the shear-resistant layer 3 is coated with an outer layer 4, and the outer layer 4 includes a rubber layer 401, the shear-resistant layer 3 is located inside the rubber layer 401, and the outer side of the rubber layer 401 forms anti-skid protrusions 402 distributed in a circumferential array when coated, so as to improve the anti-friction ability and the anti-skid effect when used. When producing, after the inner core layer 1 is produced, the functional layer 2 is coated on the inner core layer 1 layer by layer to form the functional layer 2, and then the wire hoop 301 is 1 is evenly sleeved on the outside of the functional layer 2, and the shear-resistant metal wire 302 is hot-melt connected to the wire hoop 301, and finally the shear-resistant layer 3 is covered by the outer layer 4 to form a fire-fighting wire. When in use, the wire hoop 301 and the shear-resistant metal wire 302 in the shear-resistant layer 3 form an outer skeleton state on the outside of the functional layer 2. When encountering shear force, the wire hoop 301 and the shear-resistant metal wire 302 are used to block it, thereby improving the shear resistance of the technical solution and preventing the cutting phenomenon from occurring. When in use, the functional layer 2 also improves the fire resistance of the technical solution, improves the stability when used for fire fighting, and the rubber layer 401 improves the friction resistance and corrosion resistance of the outer surface when in use, thereby improving the overall performance of the technical solution and facilitating use.

[0023] The inner core layer 1 is composed of a battery core 101 and an inner mica layer 102. The battery core 101 is made of conductive threads that are spirally interwoven into a bundle structure. The inner mica layer 102 covers the gaps between the outer sides of the conductive threads and the outside of the battery core 101. A plurality of conductive threads are twisted and woven into a spiral bundle to improve the conductive stability during use. The inner mica layer 102 also facilitates insulation and heat insulation of the outside of the battery core 101, thereby improving the stability of use.

[0024] The functional layer 2 includes an isolation layer 201, which is made of glass fiber yarn, and the isolation layer 201 covers the outer side of the inner core layer 1. The outer side of the isolation layer 201 is covered with an outer mica layer 202. The insulation and overall mechanical strength during use are improved by the isolation layer 201, and the fire resistance during use is further improved by the outer mica layer 202. The outer side of the outer mica layer 202 is covered with a fabric woven layer 203, and the fabric woven layer 203 is connected to the outer mica layer 20 2 is shaped, and the outer mica layer 202 on the outer side of the functional layer 2 is shaped by the fabric woven layer 203, and the inner mica layer 102 and the outer mica layer 202 are both in powder form. The fabric woven layer 203 is used to prevent looseness. The outer side of the fabric woven layer 203 is covered and connected with a shielding layer 204, and the outer side of the shielding layer 204 is fixedly connected to the inner side of the rubber layer 401. The shielding layer 204 reduces the interference of external factors on the technical solution and improves the stability during use.

[0025] The wire hoop 301 is made of hard plastic, and the wire hoop 301 is distributed in an array on the outside of the functional layer 2. The shear-resistant metal wire 302 is hot-melt connected to the wire hoop 301. By adopting the hot-melt connection, when shearing occurs in the present technical solution, the shearing position causes the shear-resistant metal wire 302 to be subjected to force, and the wire hoop 301 located on both sides of the shearing position applies a blocking force to both sides of the shear-resistant metal wire 302, further improving the anti-shear effect. The shear-resistant metal wire 302 is spirally wound into a bundle structure using fine steel wire, thereby improving the anti-shear effect during use.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fire-fighting wire with high shear resistance, characterized in that: The invention comprises an inner core layer (1), the outer part of the inner core layer (1) is coated and connected with a functional layer (2), the outer part of the functional layer (2) is coated and connected with a shear-resistant layer (3), the shear-resistant layer (3) comprises a ring-shaped wire hoop (301), and the outer side of the wire hoop (301) is provided with a shear-resistant metal wire (302) in a circumferential array, the outer part of the shear-resistant layer (3) is coated and connected with an outer layer (4), the outer layer (4) comprises a rubber layer (401), and the shear-resistant layer (3) is located inside the rubber layer (401).

2. The fire-fighting wire with high shear resistance as claimed in claim 1, characterized in that: The inner core layer (1) is composed of an electric core (101) and an inner mica layer (102); the electric core (101) is formed by spirally interweaving conductive threads into a bundle structure; and the inner mica layer (102) covers gaps between the outer sides of the conductive threads and the outside of the electric core (101).

3. The fire-fighting wire with high shear resistance as claimed in claim 1, characterized in that: The functional layer (2) comprises an isolation layer (201), the isolation layer (201) is made of glass fiber yarn, and the isolation layer (201) covers the outer side of the inner core layer (1), and the outer side of the isolation layer (201) is covered and connected with an outer mica layer (202).

4. The fire-fighting wire with high shear resistance as claimed in claim 3, characterized in that: The outer side of the outer mica layer (202) is coated and connected with a fabric braided layer (203), and the fabric braided layer (203) shapes the outer mica layer (202).

5. The fire-fighting wire with high shear resistance as claimed in claim 4, characterized in that: The outer side of the fabric braided layer (203) is covered and connected with a shielding layer (204), and the outer side of the shielding layer (204) is fixedly connected to the inner side of the rubber layer (401).

6. The fire-fighting wire with high shear resistance as claimed in claim 1, characterized in that: The wire hoops (301) are made of hard plastic, and are distributed in an array on the outside of the functional layer (2). The shear-resistant metal wires (302) are hot-melt connected to the wire hoops (301).

7. The fire-fighting wire with high shear resistance as claimed in claim 6, characterized in that: The anti-shear metal wire (302) is made of fine steel wires that are spirally wound into a bundle structure.

8. The fire-fighting wire with high shear resistance as claimed in claim 1, characterized in that: The outer side of the rubber layer (401) forms anti-slip protrusions (402) distributed in a circumferential array when coated.

Images