Medium-high voltage power cable with segmented strand blocks

Abstract

A sheath of the cable is fixedly connected with a fixing ring piece, a groove of the fixing ring piece is slidably connected with a limiting sliding piece, an end portion of the limiting sliding piece is fixedly connected with a clamping ring, the clamping ring is connected with a protective plate in a clamping mode, an end portion of the protective plate is fixedly connected with a sliding piece, and the sliding piece is fixedly connected with the limiting sliding piece. A block body of the sliding piece is connected with a movable ring piece in a sliding mode, the outer wall of the fixed ring piece is fixedly connected with an elastic inserting piece, the fixed ring piece and the movable ring piece are combined into a whole through clamping and fixing of the protective plate and the clamping ring, when the sliding piece is limited to act, the sliding piece moves synchronously, the protective plate clamps an external cable and a connecting part of the cable, and the connecting part of the external cable is clamped by the elastic inserting piece. Through the cooperation of the limiting sliding piece and the elastic inserting piece, the movement amplitude of the toothed plate can be controlled, so that the toothed plate is adjusted according to the thickness of the connecting part of the external cable and the cable, the clamping amplitude of the protection plate is determined when the toothed plate is adjusted, the toothed plate can be limited through the elastic inserting piece, and the situation that the toothed plate is loosened in the using process is avoided.

Description

Technical Field

[0001] The invention relates to the field of power cables, and in particular to a medium- and high-voltage power cable divided into strands. Background Art

[0002] The strand-divided medium and high voltage power cables refer to the way the conductors in the power cables are divided. In medium and high voltage power cables, the conductors are usually woven or wound with multiple fine metal wires (usually copper or aluminum) to provide sufficient conductivity and current carrying capacity. Strand division refers to dividing these fine metal wires into several bundles, each bundle is called a strand. This division can improve the flexibility and tensile strength of the cable, making the cable easier to bend and install. At the same time, it also reduces the mutual interference between the metal wires, which is beneficial to improving the electrical performance and reliability of the cable. The strand division of medium and high voltage power cables can be carried out in different ways and combinations according to the design and requirements of the cable to achieve the best performance and installation convenience.

[0003] It is crucial to guide cables through complex paths, cross obstacles or connect different equipment on the construction site. The segmented strands can reduce friction and mutual interference between conductors, helping to maintain the integrity and electrical performance of the cable. Power cables on construction sites usually need to be used in different environmental conditions, including buried, overhead or underwater. Power cables on construction sites are often affected by the external environment. For example, the movement of electrical equipment causes the cables to be dragged, causing wear or mechanical damage to the connection between the two cables. Summary of the invention

[0004] In order to solve the above technical problems, a medium- and high-voltage power cable with strands is provided. This technical solution solves the problem mentioned in the above background technology that power cables on construction sites are often affected by the external environment. For example, the movement of electrical equipment causes the cables to be dragged, resulting in wear or mechanical damage to the connection between the two cables.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a medium- and high-voltage power cable divided into strands and blocks, comprising a cable, the outer skin of the cable is fixedly connected to a fixed ring, the groove of the fixed ring is slidably connected to a limiting slide, the end of the limiting slide is fixedly connected to a clamping ring, the clamping ring is clamped and connected to a guard plate, the end of the guard plate is fixedly connected to a slider, the block of the slider is slidably connected to a moving ring, and the outer wall of the fixed ring is fixedly connected to an elastic plug-in;

[0006] Preferably, the fixing ring comprises: a driving ring and an arc groove, the groove on the end surface of the fixing ring is rotatably connected to the end of the driving ring, the end surface of the driving ring is provided with an arc groove, and the arc groove is slidably connected to the end of the limiting slide;

[0007] Preferably, the limiting slide comprises: an extension column 1 and a tooth plate, one side of the limiting slide is fixedly connected to the end surface of the tooth plate, the other side of the limiting slide is fixedly connected to one end of the extension column 1, the other end of the extension column 1 is fixedly connected to the end of the clamping ring, and the column body of the extension column 1 is slidably connected to the groove of the arc groove;

[0008] Preferably, the clamping ring comprises: a fixing frame, a spring 1, and a plug-in column 2, the hole opened in the middle of the clamping ring is slidably connected to the column body of the plug-in column 2, the column body of the plug-in column 2 is slidably connected to the middle of the fixing frame, the outer wall of the plug-in column 2 is sleeved with a connecting spring 1, and the end of the fixing frame is fixedly connected to the outer wall of the clamping ring;

[0009] Preferably, the elastic plug-in comprises: a sliding column, a second spring, and a baffle, the end of the elastic plug-in is slidably connected to the column body of the sliding column, the end of the sliding column is fixedly connected to the middle of the baffle, and the outer wall of the sliding column is sleeved with a second connecting spring;

[0010] Preferably, the movable ring comprises: a movable ring and a driving groove, the groove on the end surface of the movable ring is rotatably connected to the end of the movable ring, the end surface of the movable ring is provided with a driving groove, and the driving groove is slidably connected to the column of the sliding member;

[0011] Preferably, the slide member comprises: an extension column 2, the block of the slide member is fixedly connected to one end of the extension column 2, the other end of the extension column 2 is fixedly connected to the end of the guard plate, and the column of the extension column 2 is slidably connected to the groove of the driving groove;

[0012] Preferably, the guard plate comprises: a plug-in column 1 and a limiting hole, the end of the guard plate is fixedly connected to the end of the plug-in column 1, and the column body of the plug-in column 1 is provided with a limiting hole.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The guard plate is used to clamp the connection between the external cable and the cable, so that when the external cable is dragged by the outside, the guard plate can prevent the outer skin of the connection between the external cable and the cable from being worn or broken and mechanically damaged, and the clamping range of the guard plate is adjusted by driving the movement range of the limiting sliding member through the fixed ring to adapt to the thickness of the connection between the external cable and the cable;

[0015] (2) The guard plate and the clamping ring are fixed together so that the fixed ring and the movable ring are integrated. When the limiting slide moves, the slide moves synchronously so that the guard plate clamps the connecting part between the external cable and the cable. The movement range of the tooth plate can be controlled by the cooperation of the limiting slide and the elastic plug-in, so that the tooth plate can be adjusted according to the thickness of the connecting part between the external cable and the cable. The clamping range of the guard plate is determined when the tooth plate is adjusted, and the elastic plug-in can limit the tooth plate to avoid loosening of the tooth plate during use, which causes loosening of the clamping of the guard plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention in use;

[0017] Figure 2 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the dynamic ring and the guard plate of the present invention;

[0019] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the fixing ring and the limiting sliding member of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the clamping ring of the present invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the elastic plug-in of the present invention.

[0023] The numbers in the figure are:

[0024] 1. Fixed ring; 11. Drive ring; 12. Arc groove; 2. Limiting slide; 21. Extension column 1; 22. Tooth plate; 3. Moving ring; 31. Moving ring; 32. Drive groove; 4. Slide; 41. Extension column 2; 5. Guard plate; 51. Plug column 1; 52. Limit hole; 6. Snap ring; 61. Fixed frame; 62. Spring 1; 63. Plug column 2; 7. Elastic plug-in; 71. Sliding column; 72. Spring 2; 73. Baffle; 9. External cable; 10. Cable. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] Embodiment 1

[0027] Please refer to Figure 1 and Figure 5 As shown, a medium- and high-voltage power cable with strands and blocks, comprising a cable 10, wherein the outer skin of the cable 10 is fixedly connected to a fixing ring 1, the groove of the fixing ring 1 is slidably connected to a limiting slide 2, the end of the limiting slide 2 is fixedly connected to a clamping ring 6, the clamping ring 6 is clamped and connected to a guard plate 5, the end of the guard plate 5 is fixedly connected to a slide 4, the block of the slide 4 is slidably connected to a moving ring 3, and the outer wall of the fixing ring 1 is fixedly connected to an elastic plug 7;

[0028] Working principle: When connecting the cable 10 with the external cable 9, pass the external cable 9 through the middle of the movable ring 3, and then electrically connect the external cable 9 to the cable 10. At this time, push the movable ring 3 toward the position of the fixed ring 1. At this time, the guard plate 5 will be stuck on the clamping ring 6. At this time, the fixed ring 1 and the movable ring 3 are combined into a whole. At this time, rotate the fixed ring 1 to make the limiting slide 2 slide, so that the limiting slide 2 drives the guard plate 5 through the clamping ring 6 to clamp and protect the connection between the external cable 9 and the cable 10, so as to avoid wear of the connection between the external cable 9 and the cable 10 during the process of dragging the external cable 9.

[0029] Embodiment 2

[0030] Please refer to Figure 2 and Figure 3 As shown, the fixed ring 1 comprises: a driving ring 11 and an arc groove 12. The groove on the end surface of the fixed ring 1 is rotatably connected to the end of the driving ring 11. The end surface of the driving ring 11 is provided with an arc groove 12. The arc groove 12 is slidably connected to the end of the limiting slide 2.

[0031] The limiting slide 2 comprises: an extension column 21 and a tooth plate 22, one side of the limiting slide 2 is fixedly connected to the end surface of the tooth plate 22, the other side of the limiting slide 2 is fixedly connected to one end of the extension column 21, the other end of the extension column 21 is fixedly connected to the end of the clamping ring 6, and the column body of the extension column 21 is slidably connected to the groove of the arc groove 12;

[0032] The movable ring 3 comprises: a movable ring 31 and a driving groove 32. The groove on the end surface of the movable ring 3 is rotatably connected to the end of the movable ring 31. The end surface of the movable ring 31 is provided with a driving groove 32. The driving groove 32 is slidably connected to the column of the slide 4.

[0033] The slide 4 comprises: an extension column 41, a block of the slide 4 is fixedly connected to one end of the extension column 41, the other end of the extension column 41 is fixedly connected to the end of the guard plate 5, and the column of the extension column 41 is slidably connected to the groove of the driving groove 32;

[0034] The guard plate 5 comprises: a plug-in column 51 and a limiting hole 52. The end of the guard plate 5 is fixedly connected to the end of the plug-in column 51. The column body of the plug-in column 51 is provided with the limiting hole 52.

[0035] Working principle: after the guard plate 5 is inserted into the position aligned with the clamping ring 6, use the hand to twist the driving ring 11, so that the driving ring 11 drives the arc groove 12 to rotate synchronously. During the rotation of the arc groove 12, the arc groove 12 will move against the extension column 1 21. During the movement of the extension column 21, the clamping ring 6 will also move synchronously. The clamping ring 6 will drive the plug-in column 1 51 to clamp toward the middle of the fixed ring 1, and the plug-in column 1 51 drives the guard plate 5 to move synchronously. The guard plate 5 is fixedly connected to the extension column 2 41, so the extension column 2 41 will rotate against the moving ring 31, so that the slide 4 slides in the groove of the moving ring 3, so that the fixed ring 1 presses against the limiting slide 2, and the limiting slide 2 drives the moving ring 3 to move synchronously through the guard plate 5, so that the guard plate 5 clamps the connecting part of the external cable 9 and the cable 10;

[0036] The protective plate 5 is used to clamp the connection between the external cable 9 and the cable 10, so that when the external cable 9 is dragged by the outside, the protective plate 5 can prevent the outer skin of the connection between the external cable 9 and the cable 10 from being worn or broken and mechanically damaged. In addition, the clamping amplitude of the protective plate 5 is adjusted by the fixed ring 1 to limit the movement amplitude of the sliding member 2 to adapt to the thickness of the connection between the external cable 9 and the cable 10.

[0037] Embodiment 3

[0038] Please refer to Figure 4 and Figure 6 As shown, the clamping ring 6 includes: a fixing frame 61, a spring 1 62, and a plug-in column 2 63. The hole opened in the middle of the clamping ring 6 is slidably connected to the column of the plug-in column 2 63. The column of the plug-in column 2 63 is slidably connected to the middle of the fixing frame 61. The outer wall of the plug-in column 2 63 is sleeved with a connecting spring 1 62. The end of the fixing frame 61 is fixedly connected to the outer wall of the clamping ring 6.

[0039] The elastic plug-in 7 comprises: a sliding column 71, a second spring 72, and a baffle 73. The end of the elastic plug-in 7 is slidably connected to the column of the sliding column 71, the end of the sliding column 71 is fixedly connected to the middle of the baffle 73, and the outer wall of the sliding column 71 is sleeved with a second connecting spring 72;

[0040] Working principle: When the guard plate 5 is connected to the clamping ring 6, the plug-in column 1 51 will be inserted into the clamping ring 6. During this process, the plug-in column 1 51 will squeeze the plug-in column 2 63, so that the plug-in column 2 63 will retract into the hole opened in the clamping ring 6. At this time, the plug-in column 1 51 will be inserted into the bottom of the clamping ring 6. At this time, the limiting hole 52 is at the position of the plug-in column 2 63. At this time, the plug-in column 2 63 loses the squeezing of the plug-in column 1 51, and the spring 1 62 will drive the plug-in column 2 63 to reset, so that the plug-in column 2 63 is inserted into the limiting hole 52, so that the guard plate 5 and the clamping ring 6 are clamped and fixed. When the driving ring 11 is driven to rotate, the driving ring 11 drives the arc groove 12 to rotate. The arc groove 12 will drive the extension column 21 to move toward the middle of the fixed ring 1 during the rotation process, so that the tooth plate 22 slides along with the limiting slide 2. During the movement of the tooth plate 22, the tooth plate 22 is inclined in the direction of the elastic plug-in 7, and the upper part of the tooth plate 22 is a straight surface. Therefore, when the tooth plate 22 moves down, the tooth plate 22 will resist the baffle 73. At this time, the inclined surface of the tooth plate 22 will resist the baffle 73 and move toward the position of the elastic plug-in 7. The spring 2 72 is compressed. When the inclined surface of the tooth plate 22 passes, the spring 2 72 drives the baffle 73 to reset. At this time, the baffle 73 can prevent the tooth plate 22 from moving up, thereby limiting the tooth plate 22.

[0041] The guard plate 5 is fixed with the clamping ring 6 so that the fixed ring 1 and the movable ring 3 are integrated into one. When the limiting slide 2 moves, the slide 4 moves synchronously so that the guard plate 5 clamps the connecting part between the external cable 9 and the cable 10. By limiting the cooperation between the slide 2 and the elastic plug-in 7, the movement range of the tooth plate 22 can be controlled, so that the tooth plate 22 is adjusted according to the thickness of the connecting part between the external cable 9 and the cable 10. The clamping range of the guard plate 5 is determined when the tooth plate 22 is adjusted, and the elastic plug-in 7 can limit the tooth plate 22 to avoid loosening of the tooth plate 22 during use, which causes loosening of the clamping of the guard plate 5.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A medium- and high-voltage power cable divided into strands, comprising a cable (10), characterized in that: The outer skin of the cable (10) is fixedly connected to a fixed ring (1), the groove of the fixed ring (1) is slidably connected to a limiting slide (2), the end of the limiting slide (2) is fixedly connected to a snap ring (6), the snap ring (6) is snap-connected to a guard plate (5), the end of the guard plate (5) is fixedly connected to a slide (4), the block of the slide (4) is slidably connected to a movable ring (3), and the outer wall of the fixed ring (1) is fixedly connected to an elastic plug-in (7).

2. A strand-divided medium and high voltage power cable according to claim 1, characterized in that: The fixed ring (1) comprises: a driving ring (11) and an arcuate groove (12); the groove provided on the end surface of the fixed ring (1) is rotatably connected to the end of the driving ring (11); the end surface of the driving ring (11) is provided with an arcuate groove (12); and the arcuate groove (12) is slidably connected to the end of the limiting slide (2).

3. The strand-divided medium and high voltage power cable according to claim 1, characterized in that: The limiting slide (2) comprises: an extension column (21) and a tooth plate (22); one side of the limiting slide (2) is fixedly connected to the end surface of the tooth plate (22); the other side of the limiting slide (2) is fixedly connected to one end of the extension column (21); the other end of the extension column (21) is fixedly connected to the end of the clamping ring (6); and the column body of the extension column (21) is slidably connected to the groove of the arc groove (12).

4. The strand-divided medium and high voltage power cable according to claim 3, characterized in that: The clamping ring (6) comprises: a fixing frame (61), a spring 1 (62), and a plug-in column 2 (63); a hole opened in the middle of the clamping ring (6) is slidably connected to the column body of the plug-in column 2 (63); the column body of the plug-in column 2 (63) is slidably connected to the middle of the fixing frame (61); a connecting spring 1 (62) is sleeved on the outer wall of the plug-in column 2 (63); and the end of the fixing frame (61) is fixedly connected to the outer wall of the clamping ring (6).

5. The strand-divided medium and high voltage power cable according to claim 1, characterized in that: The elastic plug-in (7) comprises: a sliding column (71), a second spring (72), and a baffle (73); the end of the elastic plug-in (7) is slidably connected to the column body of the sliding column (71); the end of the sliding column (71) is fixedly connected to the middle part of the baffle (73); and the outer wall of the sliding column (71) is sleeved with the second connecting spring (72).

6. The strand-divided medium and high voltage power cable according to claim 1, characterized in that: The movable ring (3) comprises: a movable ring (31) and a driving groove (32); the groove provided on the end surface of the movable ring (3) is rotatably connected to the end of the movable ring (31); the driving groove (32) is provided on the end surface of the movable ring (31); and the driving groove (32) is slidably connected to the column of the sliding member (4).

7. The strand-divided medium and high voltage power cable according to claim 6, characterized in that: The slide (4) comprises: an extension column (41); the block of the slide (4) is fixedly connected to one end of the extension column (41); the other end of the extension column (41) is fixedly connected to the end of the guard plate (5); and the column of the extension column (41) is slidably connected to the groove of the driving groove (32).

8. The strand-divided medium and high voltage power cable according to claim 7, characterized in that: The guard plate (5) comprises: a plug-in column (51) and a limiting hole (52); the end of the guard plate (5) is fixedly connected to the end of the plug-in column (51); and the column body of the plug-in column (51) is provided with the limiting hole (52).

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