Fireproof cable

Abstract

The utility model discloses a fireproof cable, which comprises a cable and a heat insulation end cover arranged on the outer surface of the cable, and is characterized in that a connecting ring is arranged on one side of the heat insulation end cover, a heat insulation sleeve is arranged on one side of the connecting ring, and the heat insulation sleeve and the connecting ring are sleeved on the outer surface of the cable. A plurality of clamping and locking assemblies are arranged on the outer surface of the connecting ring, a plurality of arc-shaped grooves are formed in the heat insulation end cover, a plurality of round holes are further formed in the heat insulation end cover, and a connecting assembly is arranged on one side of the connecting ring. The connecting rings are fixed to the end faces of the two sides of the penetrating hole through the clamping and locking assemblies, the penetrating hole is closed after the heat insulation end cover is installed, the heat insulation sleeve and the heat insulation end cover are made of heat insulation ceramic, the heat insulation and fireproof functions are achieved through the ceramic, and the situation that the cable penetrates through the wall to continue to burn after being burnt through is avoided.

Description

Technical Field

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

[0002] Common fireproof cables are made by setting a fireproof layer in the cable. The fireproof layer can be set on the cable surface by coating or directly filling the fire retardant to form a fireproof cable. However, in areas where the cable passes through some walls, the fireproof performance is poor, which can easily cause the cable to penetrate the wall after burning through, thereby causing more serious harm. There are few existing fire prevention measures for cables passing through walls. Most of them use a cover plate on the cable to seal the holes in the wall. However, the fireproof performance of the cover plate is poor, and no effective fire prevention measures are taken in the holes in the wall. It is urgent to solve the above problems. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a fireproof cable, which can solve the above-mentioned problems in the existing technology.

[0004] The utility model is realized through the following technical scheme: a fireproof cable of the utility model comprises a cable, the outer surface of the cable is provided with an insulating end cover, characterized in that a connecting ring is provided on one side of the insulating end cover, a thermal insulating sleeve is provided on one side of the connecting ring, the thermal insulating sleeve and the connecting ring are sleeved on the outer surface of the cable, a plurality of locking components are provided on the outer surface of the connecting ring, a plurality of arc-shaped arc grooves are provided in the insulating end cover, a plurality of circular holes are also provided in the insulating end cover, and a connecting component is provided on one side of the connecting ring.

[0005] According to a further technical solution, the locking assembly includes a plurality of rotating seats arranged on the outer surface of the connecting ring, a hinged rod is hingedly arranged inside the rotating seat, a resisting surface is arranged at the bottom of the hinged rod, a mating ring is threadedly connected to the outer surface of the connecting ring, and the outer surface of the mating ring resists against the resisting surface.

[0006] According to a further technical solution, the abutting surface is inclined toward one side of the rotating seat.

[0007] According to a further technical solution, a plurality of mating holes are arranged on a side of the mating ring facing the rotating seat, and the mating holes are arranged opposite to the arc-shaped groove.

[0008] According to a further technical solution, the connection assembly includes a plurality of plug-in rods arranged on the end face of the matching ring, the plug-in rods pass through the circular holes, and nuts are provided on the outer surfaces of the plug-in rods in threaded matching connection, and the nuts abut against the end face of the insulating end cover.

[0009] The beneficial effects of the utility model are:

[0010] 1. By sleeved the insulating sleeve on the outer surface of the cable, after the insulating sleeve is placed in the through-hole, connecting rings are arranged on both sides of the insulating sleeve to fix the connecting rings in the through-hole, and then the insulating end cap is installed on one side of the connecting ring to seal the through-hole, which can effectively prevent the cable from burning through the through-hole after combustion and spread the fire. Since the insulating sleeve is sleeved on the cable and the insulating end cap seals the through-hole, the cable can be prevented from directly contacting the wall during combustion, and the insulating end cap and the insulating sleeve play a role of heat insulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of a fireproof cable of the utility model;

[0013] Figure 2 for Figure 1 Schematic diagram of the internal structure of the fire-resistant cable;

[0014] Figure 3 for Figure 2 Schematic diagram at A in the middle;

[0015] Figure 4 for Figure 3 Schematic diagram at B in the middle;

[0016] Figure 5 for Figure 2 Schematic diagram at C in the middle;

[0017] In the figure, wall 11, cable 12, through hole 13, insulation end cover 14, circular hole 21, arc groove 22, insulation sleeve 23, connecting ring 24, plug rod 25, rotating seat 31, hinge rod 32, abutting surface 33, matching ring 34, matching hole 41, nut 42. DETAILED DESCRIPTION

[0018] like Figure 1-Figure 5 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1The up-down, left-right, front-back directions of the projection relationship are consistent. The utility model is a fire-proof cable, comprising a cable 12, an outer surface of the cable 12 is provided with an insulating end cover 14, characterized in that a connecting ring 24 is provided on one side of the insulating end cover 14, a thermal insulation sleeve 23 is provided on one side of the connecting ring 24, the insulating sleeve 23 and the connecting ring 24 are sleeved on the outer surface of the cable 12, a plurality of locking components are provided on the outer surface of the connecting ring 24, a plurality of arc-shaped arc grooves 22 are provided in the insulating end cover 14, a plurality of circular holes 21 are also provided in the insulating end cover 14, and a connecting component for connecting the insulating end cover 14 to one side of the connecting ring 24 is provided on one side of the connecting ring 24.

[0019] Advantageously, the locking assembly includes a plurality of rotating seats 31 arranged on the outer surface of the connecting ring 24, a hinged rod 32 is hingedly arranged inside the rotating seat 31, a counter surface 33 is arranged at the bottom of the hinged rod 32, and a mating ring 34 is threadedly connected to the outer surface of the connecting ring 24, and the outer surface of the mating ring 34 is in contact with the counter surface 33.

[0020] Advantageously, the abutting surface 33 is inclined toward one side of the rotating seat 31, so that when the mating ring 34 moves toward the mating ring 34, the mating ring 34 abuts against the abutting surface 33, and then the hinge rod 32 swings to abut against the through hole 13 in the wall 11, so that the connecting ring 24 is fixed in the through hole 13.

[0021] Advantageously, the mating ring 34 is provided with a plurality of mating holes 41 on the side facing the rotating seat 31, and the mating holes 41 are arranged opposite to the arc groove 22. A tool in the external space is used to pass through the arc groove 22 and then engage with the mating holes 41. The mating ring 34 can be driven to rotate by rotating the tool.

[0022] Advantageously, the connection assembly includes a plurality of plug-in rods 25 disposed on the end surface of the mating ring 34 , the plug-in rods 25 pass through the circular holes 21 , and nuts 42 are threadedly provided on the outer surfaces of the plug-in rods 25 , and the nuts 42 abut against the end surface of the insulating end cover 14 .

[0023] After the cable 12 is passed through the through hole 13 in the wall 11, the insulating sleeve 23 is arranged between the matching rings 34, and the connecting rings 24 are fixed to the two side end faces of the through hole 13 by the locking assembly. After the insulating end cover 14 is installed, the through hole 13 is closed. The material of the insulating sleeve 23 and the insulating end cover 14 is insulating ceramic, and ceramic is used to achieve the insulation and fire prevention function to prevent the cable 12 from burning through the wall and continuing to burn.

[0024] First, an insulating sleeve 23 is sleeved on the outer surface of the cable 12, and the insulating sleeve 23 is placed in the through-hole 13. Connecting rings 24 are sleeved on both ends of the outer surface of the cable 12, and the connecting ring 24 is inserted into the through-hole 13. Then, after the plug-in rod 25 is passed through the circular hole 21, the nut 42 is threadedly engaged with the surface of the plug-in rod 25, and the nut 42 is abutted against the insulating end cover 14, so that the insulating end cover 14 closes the through-hole 13. Thereafter, a tool in the external space, such as a hexagonal screwdriver, is abutted against the matching hole 41, and the matching ring 34 is rotated by rotating the tool, so that the matching ring 34 is rotated and moved close to the rotating seat 31, and after the matching ring 34 is abutted against the abutting surface 33, the hinged rod 32 is gradually approached to the through-hole 13 and abutted against the inner wall of the through-hole 13, so that the connecting ring 24 is fixed in the through-hole 13.

[0025] Alternatively, the connecting ring 24 may be first fixed in the through hole 13 and then the heat insulating end cover 14 may be installed on one side of the connecting ring 24 , and adaptive adjustment may be performed according to actual conditions.

[0026] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.

Claims

1. A fireproof cable, comprising a cable (12), wherein the outer surface of the cable (12) is provided with a heat-insulating end cap (14), characterized in that: A connecting ring (24) is provided on one side of the insulating end cover (14), and a thermal insulation sleeve (23) is provided on one side of the connecting ring (24). The thermal insulation sleeve (23) and the connecting ring (24) are sleeved on the outer surface of the cable (12), and a plurality of locking components are provided on the outer surface of the connecting ring (24). A plurality of arc-shaped grooves (22) are provided in the insulating end cover (14), and a plurality of circular holes (21) are also provided in the insulating end cover (14). A connecting component is provided on one side of the connecting ring (24).

2. A fireproof cable according to claim 1, characterized in that: The locking assembly comprises a plurality of rotating seats (31) arranged on the outer surface of the connecting ring (24), a hinge rod (32) being hingedly arranged inside the rotating seat (31), a bottom of the hinge rod (32) being provided with an abutting surface (33), a mating ring (34) being threadedly mated on the outer surface of the connecting ring (24), and the outer surface of the mating ring (34) abuts against the abutting surface (33).

3. A fireproof cable according to claim 2, characterized in that: The abutting surface (33) is inclined toward one side of the rotating seat (31).

4. A fireproof cable according to claim 2, characterized in that: The matching ring (34) is provided with a plurality of matching holes (41) on one side facing the rotating seat (31), and the matching holes (41) are arranged opposite to the arc-shaped groove (22).

5. A fireproof cable according to any one of claims 2 to 4, characterized in that: The connection assembly comprises a plurality of plug-in rods (25) arranged on the end face of the matching ring (34), the plug-in rods (25) passing through the circular holes (21), and nuts (42) are provided on the outer surfaces of the plug-in rods (25) in a threaded matching connection, and the nuts (42) abut against the end face of the insulating end cover (14).

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