Power cable with good tensile property

Abstract

The utility model discloses a power cable with good tensile property, and relates to the technical field of cables, in particular to a power cable with good tensile property, which comprises a first cable and a second cable, and is characterized in that the first cable comprises an outer protective layer, a reinforcing layer is arranged in the outer protective layer, an inner protective layer is arranged in the reinforcing layer, and the second protective layer is arranged in the inner protective layer. A wrapping layer is arranged in the inner protection layer, an insulator is arranged in the wrapping layer, a wire core is arranged in the insulator, and the outer surface of the outer protection layer is sleeved with a first protection connector. According to the power cable with the good tensile property, the first fixed arc plate, the second fixed arc plate, the first cable, a pressing rod, an I-shaped plate, a second spring, a third rack, a fourth rack, a supporting plate, a filler, a reinforcing layer and a steel wire rope reinforcing core are arranged, so that the power cable with the good tensile property has the advantages that friction between the cable and the ground is reduced; the outer protective layer of the cable is prevented from being scratched, and the cable has a relatively strong tensile effect.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a power cable with good tensile performance. Background Technique

[0002] Power cables are used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, outgoing lines from power stations, internal power supply in industrial and mining enterprises, and underwater power transmission across rivers and seas. In power lines, the proportion of cables is gradually increasing, so the output of cables is gradually increasing.

[0003] For an existing power cable with good tensile performance, during use, when the cable is pulled, the cable is prone to rubbing, the surface of the cable is easily damaged, and small cracks are generated. Moreover, when the length of the cable is insufficient, splicing operations need to be performed on the cable. After splicing, the joint needs to be protected to prevent the joint from being damaged after the cable is buried in the soil. The existing power cable with good tensile performance solves the above problems. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a power cable with good tensile performance, which solves the problems raised in the above background technique.

[0006] (II) Technical Solutions

[0007] To achieve the above objectives, the utility model is realized through the following technical solutions: A power cable with good tensile performance includes a first cable and a second cable. The first cable includes an outer sheath. A strengthening layer is arranged inside the outer sheath. An inner sheath is arranged inside the strengthening layer. A wrapping layer is arranged inside the inner sheath. Insulation is arranged inside the wrapping layer. A conductor core is arranged inside the insulation. A first protective joint is sleeved on the outer surface of the outer sheath. A first rubber ring is arranged inside the first protective joint. A first groove is opened inside the first protective joint. A sleeve is arranged in the first groove. A first clamping block and a second clamping block are arranged inside the sleeve. A first rack is arranged on the inner side wall of the first protective joint. A first connecting rod is arranged on the left side of the first protective joint. A first clamp and a second clamp are sleeved on the outer surface of the first connecting rod. A second protective joint is sleeved on the outer surface of the outer sheath of the second cable. A second rubber ring is arranged inside the second protective joint. A second groove is opened inside the second protective joint. A second rack is arranged inside the second groove. A first annular groove and a second annular groove are opened inside the second protective joint.

[0008] Optionally, the number of the insulation and the conductor core is several, and they are evenly distributed inside the wrapping layer. A steel wire rope strengthening core is arranged inside the wrapping layer.

[0009] Optionally, a filler is provided in the gap between the insulation and the steel wire rope reinforcing core, and the internal structures of the first cable and the second cable are the same.

[0010] Optionally, a first spring is provided inside the sleeve. The number of the first springs is two, and one ends of the two first springs are respectively provided at the bottoms of the first clamping block and the second clamping block.

[0011] Optionally, a second connecting rod is provided on the left side of the second protective joint. The outer surface of the second connecting rod is sleeved with a third clamp and a fourth clamp. Through holes are provided inside the first clamp, the second clamp, the third clamp and the fourth clamp, and bolts adapted to the diameters of the through holes are provided inside the through holes. Nuts are drivingly connected to the outer surfaces of the bolts.

[0012] Optionally, the outer surfaces of the first cable and the second cable are both sleeved with first fixing arc plates, and a second fixing arc plate is hinged to one side of the first fixing arc plate through a hinge.

[0013] Optionally, a third rack is provided on one side of the first fixing arc plate, a third groove is provided inside the second fixing arc plate, a second spring is provided inside the third groove, a T-shaped plate is provided at the top of the second spring, and a fourth rack and a pressing rod are provided at the top of the T-shaped plate.

[0014] Optionally, the number of the third rack and the fourth rack is both two, and support plates are provided on the outer surfaces of the first fixing arc plate and the second fixing arc plate. The number of the support plates is several and they are evenly distributed on the outer surfaces of the first fixing arc plate and the second fixing arc plate.

[0015] The utility model provides a power cable with good tensile performance, and has the following beneficial effects:

[0016] 1. For the power cable with good tensile performance, through the settings of the first fixing arc plate, the second fixing arc plate, the first cable, the pressing rod, the T-shaped plate, the second spring, the third rack, the fourth rack, the support plate, the filler, the reinforcing layer and the steel wire rope reinforcing core, the power cable with good tensile performance has the effects of reducing the friction between the cable and the ground, preventing the outer protective layer of the cable from being scratched, and having strong tensile property.

[0017] 2. For the power cable with good tensile performance, through the settings of the first protective joint, the second protective joint, the wire core, the first clamping block, the second clamping block, the first spring, the first rack, the second rack, the bolt, the nut, the first clamp, the second clamp, the third clamp, the fourth clamp, the first rubber ring and the second rubber ring, the power cable with good tensile performance has the effects of protecting the joint of the cable, preventing internal extrusion at the joint and damaging the joint. Description of the Drawings

[0018] Figure 1 is a three-dimensional schematic diagram of the structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the front view cross-section of the present utility model;

[0020] Figure 3 For the present utility model Figure 2 is a schematic diagram of the enlarged view of A in the present utility model;

[0021] Figure 4 is a schematic diagram of the structure of the top view cross-section of the first fixing arc plate and the second fixing arc plate of the present utility model;

[0022] Figure 5 is a schematic diagram of the structure of the side view of the present utility model;

[0023] Figure 6 For the present utility model Figure 5 is a schematic diagram of the enlarged view of B in the present utility model;

[0024] Figure 7 is a schematic diagram of the structure of the side view of the first cable of the present utility model.

[0025] In the figure: 1, support plate; 2, first fixing arc plate; 3, second fixing arc plate; 4, outer protective layer; 5, first clamp; 6, nut; 7, second protective joint; 8, third clamp; 9, fourth clamp; 10, first protective joint; 11, second clamp; 12, bolt; 13, first rubber ring; 14, second rubber ring; 15, first clamping block; 16, second clamping block; 17, first spring; 18, first rack; 19, second rack; 20, I-shaped plate; 21, pressing rod; 22, fourth rack; 23, third rack; 24, second spring; 25, strengthening layer; 26, inner protective layer; 27, wrapping layer; 28, insulation; 29, wire core; 30, steel wire rope strengthening core; 31, filler; 32, first cable. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Embodiment 1

[0028] A power cable with good tensile properties, including a first cable 32 and a second cable. The first cable 32 includes an outer sheath 4. Inside the outer sheath 4, there is a reinforcing layer 25. Inside the reinforcing layer 25, there is an inner sheath 26. Inside the inner sheath 26, there is a wrapping layer 27. Inside the wrapping layer 27, there is insulation 28. Inside the insulation 28, there is a conductor core 29. The number of the insulation 28 and the conductor core 29 is several, and they are evenly distributed inside the wrapping layer 27. Inside the wrapping layer 27, there is a steel wire rope reinforcing core 30. Inside the space between the insulation 28 and the steel wire rope reinforcing core 30, there is a filler 31. The internal structures of the first cable 32 and the second cable are the same. The outer surfaces of the first cable 32 and the second cable are both sleeved with a first fixed arc plate 2. One side of the first fixed arc plate 2 is hinged with a second fixed arc plate 3 through a hinge. One side of the first fixed arc plate 2 is provided with a third rack 23. Inside the second fixed arc plate 3, there is a third groove. Inside the third groove, there is a second spring 24. The top of the second spring 24 is provided with a shaped plate 20. The top of the shaped plate 20 is provided with a fourth rack 22 and a pressing rod 21. The number of the third rack 23 and the fourth rack 22 is two. The outer surfaces of the first fixed arc plate 2 and the second fixed arc plate 3 are both provided with support plates 1. The number of the support plates 1 is several, and they are evenly distributed on the outer surfaces of the first fixed arc plate 2 and the second fixed arc plate 3.

[0029] In order to enable the power cable with good tensile properties to reduce the friction between the cable and the ground, prevent the outer sheath of the cable from being scratched, and have a strong tensile property, as shown in the attached Figure 1-7As shown, the present application adopts the following structure. Through the cooperation of the first fixed arc plate 2, the second fixed arc plate 3, the first cable 32, the pressing rod 21, the I-shaped plate 20, the second spring 24, the third rack 23, the fourth rack 22, the support plate 1, the filler 31, the strengthening layer 25 and the steel wire rope strengthening core 30, during use, the first fixed arc plate 2 and the second fixed arc plate 3 are sleeved on the first cable 32, then the pressing rod 21 is pressed downwards. The pressing rod 21 pushes the I-shaped plate 20 and compresses the second spring 24. The second spring 24 contracts under force. Then the first fixed arc plate 2 and the second fixed arc plate 3 are flipped so that the first fixed arc plate 2 and the second fixed arc plate 3 gradually abut. The third rack 23 is inserted into the third groove inside the second fixed arc plate 3. The pressing rod 21 is released, and the second spring 24 releases elastic force, pushing the fourth rack 22 upwards. The teeth of the third rack 23 and the fourth rack 22 abut against each other to prevent the first fixed arc plate 2 and the second fixed arc plate 3 from separating. When the first cable 32 needs to be pulled, the support plate 1 contacts the ground and plays a supporting role for the first cable 32, reducing the contact area between the first cable 32 and the ground, thereby reducing the friction force received by the first cable 32, and thus reducing the pulling force on the cable. Relatively, the overall tensile property of the cable is increased. The filler 31, the strengthening layer 25 and the steel wire rope strengthening core 30 inside the first cable 32 (the filler 31 such as fiber material can enhance the tensile property of the cable without significantly increasing the weight. The strengthening layer 25, such as steel wire braiding or steel strip armoring, directly improves the mechanical strength of the cable) increase the tensile and lateral pressure resistance of the cable, thereby achieving the effect that a power cable with good tensile property reduces the friction between the cable and the ground, prevents the outer protective layer of the cable from being scratched, and has strong tensile property.

[0030] Embodiment 2

[0031] A first protective joint 10 is sleeved on the outer surface of the outer sheath 4. A first rubber ring 13 is arranged inside the first protective joint 10. A first groove is formed inside the first protective joint 10. A sleeve is arranged in the first groove. A first clamping block 15 and a second clamping block 16 are arranged inside the sleeve. A first rack 18 is arranged on the inner side wall of the first protective joint 10. A first connecting rod is arranged on the left side of the first protective joint 10. A first clamp 5 and a second clamp 11 are sleeved on the outer surface of the first connecting rod. A second protective joint 7 is sleeved on the outer surface of the second cable outer sheath 4. A second rubber ring 14 is arranged inside the second protective joint 7. A second groove is formed inside the second protective joint 7. A second rack 19 is arranged inside the second groove. A first annular groove and a second annular groove are formed inside the second protective joint 7. A first spring 17 is arranged inside the sleeve. The number of the first springs 17 is two. One ends of the two first springs 17 are respectively arranged at the bottoms of the first clamping block 15 and the second clamping block 16. A second connecting rod is arranged on the left side of the second protective joint 7. A third clamp 8 and a fourth clamp 9 are sleeved on the outer surface of the second connecting rod. Through holes are formed inside the first clamp 5, the second clamp 11, the third clamp 8 and the fourth clamp 9. Bolts 12 adapted to the diameters of the through holes are arranged inside the through holes. Nuts 6 are in transmission connection with the outer surfaces of the bolts 12.

[0032] In order to achieve the effect that a power cable with good tensile performance protects the joint of the cable, prevents internal extrusion at the joint and causes damage to the joint, as shown in the appendix Figure 2-3As shown in the figure, the present application adopts the following structure. Through the cooperation of the first protective joint 10, the second protective joint 7, the wire core 29, the first clamping block 15, the second clamping block 16, the first spring 17, the first rack 18, the second rack 19, the bolt 12, the nut 6, the first clamp 5, the second clamp 11, the third clamp 8, the fourth clamp 9, a rubber ring 13 and a second rubber ring 14, during the use process, when the first cable 32 and the second cable need to be butted, first, the first protective joint 10 and the second protective joint 7 are respectively sleeved on the outer surfaces of the first cable 32 and the second cable. After the staff connects the wire cores 29 inside the first cable 32 and the second cable and takes protective measures, the first protective joint 10 and the second protective joint 7 are pushed until the first protective joint 10 and the second protective joint 7 are abutted. During the process of pushing the first protective joint 10 and the second protective joint 7 to abut, the second protective joint 7 is inserted into the first groove inside the first protective joint 10, and the second protective joint 7 pushes the first clamping block 15 and the second clamping block 16, so that the second clamping block 16 and the second clamping block 16 move downward and squeeze the first spring 17. When the first protective joint 10 and the second protective joint 7 are abutted, the first spring 17 releases elastic force and pushes the first clamping block 15 and the second clamping block 16. The first clamping block 15 is clamped into the first annular groove inside the second protective joint 7, and the second clamping block 16 is clamped into the second annular groove inside the second protective joint 7. At the same time, the first rack 18 is inserted into the second groove of the second protective joint 7, so that the first rack 18 contacts the second rack 19. As the first rack 18 is gradually inserted into the second groove of the second protective joint 7, the second rack 19 generates elastic deformation, and the teeth of the first rack 18 and the second rack 19 are abutted to prevent the first protective joint 10 and the second protective joint 7 from separating. Then, the first clamp 5, the second clamp 11 and the first protective joint 10 are fixed to the first cable 32 through the bolt 12 and the nut 6, and the third clamp 8, the fourth clamp 9 and the second protective joint 7 are fixed to the second cable through the bolt 12 and the nut 6. The first rubber ring 13 and the second rubber ring 14 can prevent sewage from entering the joint, thus realizing that a power cable with good tensile performance protects the joint of the cable, prevents internal extrusion at the joint, and makes the joint damaged.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A power cable with good tensile properties, comprising a first cable and a second cable, characterized in that: The first cable includes an outer sheath. Inside the outer sheath, a strengthening layer is provided. Inside the strengthening layer, an inner sheath is provided. Inside the inner sheath, a wrapping layer is provided. Inside the wrapping layer, insulation is provided. Inside the insulation, a conductor core is provided. A first protective joint is sleeved on the outer surface of the outer sheath. Inside the first protective joint, a first rubber ring is provided. Inside the first protective joint, a first groove is formed. Inside the first groove, a sleeve is provided. Inside the sleeve, a first clamping block and a second clamping block are provided. On the inner side wall of the first protective joint, a first rack is provided. On the left side of the first protective joint, a first connecting rod is provided. On the outer surface of the first connecting rod, a first clamp and a second clamp are sleeved. On the outer surface of the outer sheath of the second cable, a second protective joint is sleeved. Inside the second protective joint, a second rubber ring is provided. Inside the second protective joint, a second groove is formed. Inside the second groove, a second rack is provided. Inside the second protective joint, a first annular groove and a second annular groove are formed.

2. The power cable with good tensile property according to claim 1, characterized in that: The number of the insulation and the conductor cores is several, and they are evenly distributed inside the wrapping layer. Inside the wrapping layer, a steel wire rope strengthening core is provided.

3. The power cable with good tensile performance according to claim 1, characterized in that: Fillers are provided in the gaps between the insulation and the steel wire rope strengthening core. The internal structures of the first cable and the second cable are the same.

4. A power cable with good tensile properties according to claim 1, characterized in that: Inside the sleeve, two first springs are provided. One ends of the two first springs are respectively provided at the bottoms of the first clamping block and the second clamping block.

5. The power cable with good tensile property according to claim 1, characterized in that: On the left side of the second protective joint, a second connecting rod is provided. On the outer surface of the second connecting rod, a third clamp and a fourth clamp are sleeved. Through holes are formed inside the first clamp, the second clamp, the third clamp and the fourth clamp. Inside the through holes, bolts adapted to the diameters of the through holes are provided. Nuts are drivingly connected to the outer surfaces of the bolts.

6. The power cable with good tensile property according to claim 1, characterized in that: On the outer surfaces of both the first cable and the second cable, first fixed arc plates are sleeved. On one side of the first fixed arc plate, a second fixed arc plate is hinged through a hinge.

7. The power cable with good tensile property according to claim 6, wherein: On one side of the first fixed arc plate, a third rack is provided. Inside the second fixed arc plate, a third groove is formed. Inside the third groove, a second spring is provided. On the top of the second spring, a shaped plate is provided. On the top of the shaped plate, a fourth rack and a pressing rod are provided.

8. The power cable with good tensile property according to claim 7, characterized in that: The number of both the third rack and the fourth rack is two. On the outer surfaces of both the first fixed arc plate and the second fixed arc plate, support plates are provided. The number of the support plates is several, and they are evenly distributed on the outer surfaces of the first fixed arc plate and the second fixed arc plate.

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