High-temperature-resistant cable with long service life

Abstract

The utility model relates to the technical field of cables, and discloses a high-temperature-resistant cable with long service life, which comprises a cable body, and the cable body is sequentially provided with a protective layer, a silicon rubber layer, a stainless steel wire mesh, a reinforcing steel wire, a heat insulation layer, an insulating layer and a copper wire core from outside to inside. A protection assembly; a first buffer assembly; and a second buffer assembly. According to the protective device, the protective ring can be conveniently mounted and dismounted on the outer wall of the protective layer through the protective assembly and the second buffer assembly, the protective layer is prevented from being in contact with the ground to be abraded and the service life of the protective layer is prevented from being affected through rolling of balls on the protective ring, and the service life of the protective layer can be prolonged through buffering of a damping rod and a second spring. The rolling stability of the balls is improved, and the situation that the stability of the protection ring is affected by shaking of the protection ring due to stress generated when the balls make contact with the ground is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable technical field especially relates to a long service life high temperature resistant cable. BACKGROUND

[0002] The cable is usually by several or several groups of wire (at least two in each group) is twisted and becomes the cable like rope, the mutual insulation between each group of wire, and often around a center twist, the whole outside is covered with the highly insulated covering layer, the cable has the inside electricity, the outside insulation.

[0003] Through the retrieval publication No. CN220672263U discloses a long service life high temperature resistant cable, including copper wire core, the outer surface of copper wire core is provided with insulating layer, the outer surface of insulating layer is wrapped with heat insulating layer, the heat insulating layer includes aluminium silicate ceramic fiber layer and refractory fiber cotton layer, the outer surface of heat insulating layer is wrapped with silicone rubber layer, the outer surface of silicone rubber layer is wrapped with protective layer, the protective layer includes polytetrafluoroethylene layer and polyurethane coating, the insulating layer includes crosslinked polyethylene layer and mineral insulating layer. The utility model discloses through the cooperation of protective layer, polyurethane coating, polytetrafluoroethylene layer, silicone rubber layer, heat insulating layer, aluminium silicate ceramic fiber layer and refractory fiber cotton layer, greatly improve the wear resistance and high temperature resistance of the cable during use, effectively reduce the probability of damage caused by wear and high temperature during use, improve the overall service life.

[0004] When the technical scheme is used, no suitable protection structure is arranged at the protective layer outside, when the cable is transferred, the cable needs to be dragged, at this time, the protective layer contacts the ground, the sharp part at the ground then causes abrasion to the protective layer and causes damage to the protective layer, further causing damage to the protective layer inside, and affecting the service life of the cable body.

[0005] Therefore, we propose a long service life high temperature resistant cable. UTILITY MODEL CONTENTS

[0006] The utility model mainly solves the technical problem that the protective layer outside of the prior art has no protection and causes damage to affect the service life of the cable body, and provides a long service life high temperature resistant cable.

[0007] In order to achieve the above object, the utility model adopts the following technical scheme, a long service life high temperature resistant cable, comprising:

[0008] The cable body is provided with a protective layer, a silicone rubber layer, a stainless steel wire mesh, a reinforcing steel wire, a heat insulating layer, an insulating layer and a copper wire core from outside to inside.

[0009] The protection assembly is sleeved on the outer wall of the protection layer, and comprises two protection rings and rolling balls.

[0010] The first buffer assembly is arranged at the inner ring of the protection ring, and comprises an elastic ring and an air bag.

[0011] The second buffer assembly is arranged at the protection ring and is used for buffering the rolling balls, and comprises a sliding block, a damping rod and a second spring.

[0012] Further, the protection ring is semicircular, and the two protection rings are matched, the mounting grooves and the mounting rods are staggered and arranged at the positions of the two ends of the protection ring, the tail end of the cross section of the mounting rod is arc-shaped, the locking hole penetrating through the mounting rod is formed in the mounting rod, the locking rod is slidably connected to the inner wall of the mounting groove, and the locking rod is matched with the locking hole.

[0013] Further, one end of the cross section of the locking rod is arc-shaped, an end of the locking rod is provided with a pull plate used for pulling in the axial direction, the sliding plate is fixedly connected to the outer wall of the locking rod, the sliding plate is slidably connected to the inner wall of the protection ring, the first spring is arranged on the opposite wall surfaces of the sliding plate and the inner wall of the protection ring, and the first spring is sleeved on the outer wall of the locking rod.

[0014] Further, the sliding block is slidably connected to the protection ring, the rotating groove is formed in the sliding block, and the rolling ball is rotatably connected to the inner wall of the rotating groove.

[0015] Further, the damping rod is arranged at the two ends of the side, away from the rolling ball, of the sliding block, the second spring is sleeved on the outer wall of the damping rod, and the damping rod and the second spring are fixedly connected to the inner wall of the protection ring at the other ends.

[0016] Further, the elastic ring is arranged at the position of the inner ring of the protection ring, and the elastic ring is a plurality of semicircular ring structure assemblies.

[0017] Further, the air bag is arranged on the opposite wall surfaces of the elastic ring and the inner ring of the protection ring, the cavity is arranged in the air bag, and the cavity is filled with gas.

[0018] Beneficial effects

[0019] The utility model provides a long service life's high temperature resistant cable. Possesses following beneficial effect:

[0020] (1) The long service life high temperature resistant cable, through the setting of the protection assembly and the second buffer assembly, can conveniently install and detach the protection ring at the outer wall of the protection layer, avoid the contact and abrasion of the protection layer and the ground through the rolling of the ball on the protection ring, affect the service life of the protection layer, and can improve the stability of the rolling of the ball through the buffer of the damping rod and the second spring, avoid the stress of the contact of the ball and the ground from causing the shaking of the protection ring, and affect the stability of the protection ring.

[0021] (2) The long service life high temperature resistant cable, through the setting of the elastic ring and the air bag, avoids the abrasion of the protection layer through the elasticity of the elastic ring, affects the service life, buffers the relative movement between the protection layer and the protection ring through the elasticity of the elastic ring and the air pressure in the air bag, improves the stability of the installation, and transmits heat to the air bag through the elastic ring, absorbs heat through the helium in the air bag, and avoids the overheating of the cable body from affecting the service life. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the utility model;

[0023] Figure 2 It is a detailed view of the protection ring of the utility model;

[0024] Figure 3 It is a partial sectional view of the protection ring of the utility model;

[0025] Figure 4 It is another direction sectional view of the protection ring of the utility model.

[0026] Legend: 1, protection layer; 2, silicone rubber layer; 3, stainless steel wire mesh; 4, reinforcing steel wire; 5, heat insulation layer; 6, insulation layer; 7, copper wire core; 8, protection ring; 9, ball; 10, installation groove; 11, installation rod; 12, pull plate; 13, elastic ring; 14, locking hole; 15, locking rod; 16, sliding plate; 17, first spring; 18, air bag; 19, sliding block; 20, damping rod; 21, second spring. DETAILED DESCRIPTION

[0027] Example one: a long service life high temperature resistant cable, as shown in Figure 1 and Figure 2 , comprising

[0028] The cable body is provided with, from outside to inside, a protective layer 1, a silicone rubber layer 2, a stainless steel wire mesh 3, a reinforcing steel wire 4, a heat insulation layer 5, an insulation layer 6 and a copper wire core 7 (the protective layer 1 is provided with a polyurethane coating and a polytetrafluoroethylene layer, the stainless steel wire mesh 3 and the reinforcing steel wire 4 are inserted between the silicone rubber layer 2 and the heat insulation layer 5, the heat insulation layer 5 is provided with an aluminum silicate ceramic fiber layer and a fire-resistant fiber cotton layer, and the insulation layer 6 is provided with a cross-linked polyethylene layer and a mineral insulation layer); the part in the brackets is the prior art and will not be repeated here.

[0029] The protective assembly is sleeved on the outer wall of the protective layer 1 and comprises two protective rings 8 and rolling balls 9 for rolling. The protective assembly is further provided with a mounting portion for mounting, and the mounting portion comprises a mounting groove 10, a mounting rod 11 and a locking rod 15.

[0030] The first buffer assembly is arranged at the inner ring of the protective ring 8 and comprises an elastic ring 13 and an air bag 18.

[0031] The second buffer assembly is arranged at the inner ring of the protective ring 8 and is used for buffering the rolling balls 9. The second buffer assembly comprises a sliding block 19, a damping rod 20 and a second spring 21.

[0032] As shown in Figure 2 and Figure 3 , the protective ring 8 is semicircular and the two protective rings 8 are matched. The mounting groove 10 and the mounting rod 11 are arranged at the two ends of the protective ring 8 in a staggered manner. The mounting groove 10 and the mounting rod 11 are matched. The mounting rod 11 has a circular arc-shaped tail end in cross section. The locking hole 14 is formed through the mounting rod 11. The first sliding groove is formed in the mounting groove 10. The sliding hole is formed through the inner wall of the first sliding groove. The locking rod 15 is slidably connected to the inner wall of the first sliding groove. The locking rod 15 is arranged on the inner wall of the mounting groove 10 and matched with the locking hole 14.

[0033] The locking rod 15 has a circular arc-shaped end in cross section. The locking rod 15 is provided with a pull plate 12 at the axial position of one end for pulling. The sliding plate 16 is fixedly connected to the outer wall of the locking rod 15. The sliding plate 16 is slidably connected to the inner wall of the first sliding groove. The first spring 17 is arranged on the opposite wall surface of the sliding plate 16 and the first sliding groove. The first spring 17 is sleeved on the outer wall of the locking rod 15.

[0034] When it is necessary to install the protective ring 8, the two protective rings 8 are butted at this time, the mounting rod 11 on one protective ring 8 is inserted into the mounting slot 10 on the other protective ring 8, and the arc structure at the protective ring 8 can press the arc structure on the locking rod 15, thereby driving the pull plate 12, the locking rod 15 and the sliding plate 16 to move. When the mounting rod 11 is inserted into the bottom, the sliding plate 16 can slide in the first sliding slot under the action of the first spring 17, and the locking rod 15 and the pull plate 12 can synchronously move and be inserted into the locking hole 14 on the mounting rod 11 for fixation. When it is necessary to release the fixation, the pull plate 12 is pulled, the locking rod 15 is pulled out of the locking hole 14 on the mounting rod 11, and the two protective rings 8 can be disassembled.

[0035] As shown in Figure 2 and Figure 4 , a plurality of second sliding slots arranged in a circle are formed on the outer ring of the protective ring 8, a sliding block 19 is slidably connected in the second sliding slot, a rotating slot is formed in the sliding block 19, a ball 9 is rotatably connected to the inner wall of the rotating slot, and an overflow plate is arranged at the tail end of the second sliding slot to prevent the sliding block 19 from overflowing.

[0036] A damping rod 20 is arranged at both ends of the side of the sliding block 19 away from the ball 9, a second spring 21 is sleeved on the outer wall of the damping rod 20, and the other end of the damping rod 20 and the second spring 21 is fixedly connected to the inner wall of the second sliding slot.

[0037] When it is necessary to transfer the cable body, the ball 9 on the protective ring 8 is in contact with the ground at this time. When it is dragged, the ball 9 can drive the cable body to move by the relative displacement between the rolling of the ball 9 and the ground, the outer skin of the protective layer 1 can be protected, and the sliding block 19 can be moved by the extrusion of the ground, the damping rod 20 and the second spring 21 are extruded, the second spring 21 can buffer the stress of the extrusion by contraction, and the elastic potential energy of the second spring 21 can be absorbed by the resistance generated by the extension of the damping rod 20, so as to keep the stability of the buffer.

[0038] In summary, the protective assembly and the second buffer assembly can conveniently install and disassemble the protective ring 8 on the outer wall of the protective layer 1, the rolling of the ball 9 on the protective ring 8 can avoid the contact and abrasion between the protective layer 1 and the ground, which affects the service life of the protective layer 1, and the buffer of the damping rod 20 and the second spring 21 can improve the stability of the rolling of the ball 9, avoid the stress caused by the contact between the ball 9 and the ground from causing the protective ring 8 to shake, and affect the stability of the protective ring 8.

[0039] As shown in Figure 4As shown, the elastic ring 13 is arranged in the inner ring position of the protective ring 8, the elastic ring 13 is a plurality of semicircular ring structure assemblies, the elastic ring 13 is made of heat-conducting rubber material, and the heat-conducting rubber material is composed of a rubber matrix and boron nitride filler.

[0040] The elastic ring 13 and the wall surface opposite to the inner ring of the protective ring 8 are provided with an air bag 18, the air bag 18 is provided with a cavity, and the cavity is filled with air, which is helium.

[0041] When the protective ring 8 fixes the outer wall of the protective layer 1, the elastic ring 13 contacts the outer wall of the protective layer 1 at this time, that is, the elastic ring 13 is deformed by extrusion to fit the outer wall of the protective layer 1, which avoids the abrasion of the outer wall of the protective layer 1 caused by the deviation of the protective ring 8, and the elastic ring 13 is made of heat-conducting rubber material, the cavity in the air bag 18 is filled with helium, the installation stability between the protective ring 8 and the protective layer 1 is improved by the elasticity of the elastic ring 13 and the air pressure in the air bag 18, that is, the heat is transmitted to the air bag 18 through the elastic ring 13, the heat is absorbed by the helium in the air bag 18, the heat dissipation effect is improved, and the service life of the cable body is not affected by the overheating of the cable body.

[0042] By arranging the elastic ring 13 and the air bag 18, the abrasion of the protective layer 1 caused by the elastic ring 13 is avoided, the service life of the protective layer 1 is affected, the relative movement between the protective layer 1 and the protective ring 8 is buffered by the elasticity of the elastic ring 13 and the air pressure in the air bag 18, the installation stability is improved, the heat is transmitted to the air bag 18 through the elastic ring 13, the heat is absorbed by the helium in the air bag 18, and the service life of the cable body is not affected by the overheating of the cable body.

[0043] The utility model discloses a working principle: when needing to install the protective ring 8, two protective rings 8 are docked to the installation rod 11 on one protective ring 8 is inserted into the installation slot 10 on another protective ring 8, and the arc structure at the protective ring 8 can extrude the arc structure on the locking rod 15, drive the pull plate 12, the locking rod 15 and the sliding plate 16 to move, when the installation rod 11 is inserted into the bottom, the sliding plate 16 can slide in the first sliding groove under the first spring 17, and the locking rod 15 and the pull plate 12 are synchronously moved and inserted into the locking hole 14 on the installation rod 11 and fixed, when needing to remove the fixation, the locking rod 15 is pulled out from the locking hole 14 on the installation rod 11, and the protective ring 8 on both sides is pulled and can be disassembled, when needing to transfer the cable body, the ball 9 on the protective ring 8 contacts the ground, and when being dragged, the ball 9 can drive the cable body to move through the relative displacement between the rolling and the ground, the outer skin of the protective layer 1 can be protected, and the sliding block 19 is moved through the extrusion of the ground, the damping rod 20 and the second spring 21 are extruded, the second spring 21 can buffer the stress of extrusion through contraction, and the elastic potential energy of the second spring 21 is absorbed through the resistance of the extension of the damping rod 20, and the stability of buffering is kept, when the protective ring 8 fixes the outer wall of the protective layer 1, the elastic ring 13 contacts the outer wall of the protective layer 1, and the elastic ring 13 is deformed and adhered to the outer wall of the protective layer 1 through extrusion, the outer wall of the protective layer 1 is prevented from being abraded due to the deviation of the protective ring 8, the elastic ring 13 is heat-conducting rubber material, the cavity in the air bag 18 is filled with helium, the installation stability between the protective ring 8 and the protective layer 1 is improved through the elasticity of the elastic ring 13 and the air pressure in the air bag 18, heat is transferred to the air bag 18 through the elastic ring 13, the heat is absorbed through the helium in the air bag 18, and the heat dissipation effect is improved.

[0044] The basic principle and main features of the utility model and the advantages of the utility model are shown and described. The skilled person in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification only illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A long-life high-temperature resistant cable, characterized by: The utility model relates to a cable, which comprises: a cable body, which is provided with, from outside to inside, a protective layer (1), a silicone rubber layer (2), a stainless steel wire mesh (3), a reinforcing steel wire (4), a heat insulation layer (5), an insulation layer (6), and a copper wire core (7); a protection assembly, which is sleeved on the outer wall of the protective layer (1) and comprises two protection rings (8) and rolling balls (9) for rolling, and is further provided with a mounting portion for mounting, which comprises a mounting groove (10), a mounting rod (11), and a locking rod (15); a first buffer assembly, which is arranged at the inner ring of the protection ring (8) and comprises an elastic ring (13) and an air bag (18); a second buffer assembly, which is arranged at the inner ring of the protection ring (8) and is used for buffering the rolling balls (9), and comprises a sliding block (19), a damping rod (20), and a second spring (21).

2. The long service life high temperature resistant cable of claim 1, wherein: The protection ring (8) is semicircular and two protection rings (8) are matched, the mounting groove (10) and the mounting rod (11) are arranged at the positions of the two ends of the protection ring (8) in a staggered manner, the tail end of the cross section of the mounting rod (11) is arc-shaped, the locking hole (14) is formed through the mounting rod (11), the locking rod (15) is slidably connected to the inner wall of the mounting groove (10), and the locking rod (15) is matched with the locking hole (14).

3. The long service life high temperature resistant cable of claim 2, wherein: The locking rod (15) is arc-shaped at one end of the cross section, the locking rod (15) is provided with a pull plate (12) at the axial position of one end of the locking rod (15) for pulling, the sliding plate (16) is fixedly connected to the outer wall of the locking rod (15), the sliding plate (16) is slidably connected to the inner wall of the protection ring (8), the first spring (17) is arranged on the opposite wall surfaces of the sliding plate (16) and the inner wall of the protection ring (8), and the first spring (17) is sleeved on the outer wall of the locking rod (15).

4. The long service life high temperature resistant cable of claim 1, wherein: The sliding block (19) is slidably connected to the inner wall of the protection ring (8), the turning groove is formed in the sliding block (19), and the rolling ball (9) is rotationally connected to the inner wall of the turning groove.

5. The long service life high temperature resistant cable of claim 4, wherein: The damping rod (20) is arranged at both ends of the side, away from the rolling ball (9), of the sliding block (19), the second spring (21) is sleeved on the outer wall of the damping rod (20), and the damping rod (20) and the second spring (21) are fixedly connected to the inner wall of the protection ring (8) at the other ends.

6. The long service life high temperature resistant cable of claim 1, wherein: The elastic ring (13) is arranged at the inner ring position of the protection ring (8), and the elastic ring (13) is a plurality of semicircular annular structure assemblies.

7. The long service life high temperature resistant cable of claim 1, wherein: The air bag (18) is arranged on the opposite wall surfaces of the elastic ring (13) and the inner ring of the protection ring (8), the cavity is arranged in the air bag (18), and the cavity is filled with gas.

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