High-performance cable for electric power and construction protection device thereof

Abstract

The invention discloses a high-performance electric power cable and a construction protection device thereof, and relates to the technical field of cables, and the high-performance electric power cable comprises an insulation protection layer and a plurality of wires located in the insulation protection layer; the insulation protection layer is flat, and two sides of the insulation protection layer are symmetrically provided with grooves. And the plurality of wires are uniformly arranged, and the grooves correspond to the middle positions of two adjacent wires. The high-performance cable construction protection device comprises a bottom plate, a supporting plate matched with the bottom plate in an inserted mode and a top plate matched with the supporting plate in a sliding mode. A plurality of parallel first supporting strips are evenly installed on the upper surface of the bottom plate, and a plurality of second supporting strips parallel to the first supporting strips are evenly installed on the lower surface of the top plate. According to the high-performance cable construction protection device, relative vibration generated by external vibration between adjacent cables can be greatly reduced, so that damage caused by mutual friction of the cables is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, in particular to a high-performance cable for electric power and a construction protection device thereof. Background Art

[0002] A cable is a conductor that transmits electricity from one point to another, consisting of one or more mutually insulated conductors wrapped in an insulating protective layer. It is typically made up of several or several groups of conductors twisted together into a rope-like cable. Each group of conductors is insulated from each other and often twisted around a central core. The entire cable is covered with a highly insulating layer, resulting in a cable with power flowing from the inside and insulation on the outside. During construction, cables are often placed directly on the ground. When pulled, the cable rubs against the ground, which can easily damage the cable's protective layer. Therefore, cable protection devices are required during construction.

[0003] For example, the Chinese invention patent with announcement number CN108599081B discloses a cable protection device for road construction, which includes a base plate, an insertion rod, a slide rail, a first slider, a second slider, a first inclined plate, a first connecting plate, a first slide rod, a second slide rod, a second connecting plate, a second inclined plate, a first elastic member, a first hollow tube, a first arc-shaped splint, a cover plate, a second arc-shaped splint, a second hollow tube, a second elastic member, a first screw and a fixing block; the insertion rod is fixed to the bottom of the base plate, and a first fixing groove is provided at both ends of the base plate.

[0004] Another example is a cable protection device for power construction disclosed in Chinese invention patent publication number CN107294016B. The device comprises multiple bodies, which are sequentially sleeved onto the cable. The bodies include a chassis with universal wheels attached to the bottom, and a telescopic sleeve fixedly attached to the chassis. This allows the cable to be pulled by moving the chassis and universal wheels without contacting the concrete floor, effectively preventing wear and tear. Furthermore, when reeling in the cable, a first cleaning ring and a second cleaning ring adhere closely to the cable, removing dust and impurities from the cable as it is withdrawn.

[0005] Cable protection devices in the prior art, including the above-mentioned patents, are prone to relative movement between adjacent cables when protecting flat cables, especially in harsh environments, such as construction sites or public roads, where ground vibrations are transmitted to the cables, causing them to vibrate. Prolonged friction between adjacent cables can easily damage the surface protective layer. Summary of the Invention

[0006] The object of the present invention is to provide a high-performance electric power cable and a construction protection device thereof to solve the above-mentioned deficiencies in the prior art.

[0007] To achieve the above object, the present invention provides the following technical solutions: A high-performance cable for electricity, comprising an insulating protective layer and a plurality of wires located inside the insulating protective layer; the insulating protective layer is flat and grooves are symmetrically provided on both sides of the insulating protective layer; the plurality of wires are evenly arranged and the grooves correspond to the positions between adjacent two wires.

[0008] The present invention also provides a construction protection device for a high-performance cable, applicable to the above-mentioned high-performance cable for electricity, comprising a bottom plate, a support plate inserted and matched with the bottom plate, and a top plate slidably matched with the support plate; a plurality of mutually parallel first support bars are evenly installed on the upper surface of the bottom plate, and a plurality of second support bars parallel to the first support bars are evenly installed on the lower surface of the top plate.

[0009] As a preferred technical solution of the present invention, the cross-sections of the second support bars are all semi-circular arcs; the cross-section of the first support bar is an inverted U shape; the first support bar is slidably matched with the bottom plate in the vertical direction.

[0010] As a preferred technical solution of the present invention, a U-shaped support frame is rotatably installed on the lower surface of the bottom plate; the support frame has a horizontal storage state and an inclined deployment state.

[0011] As a preferred technical solution of the present invention, a convex platform is fixedly installed on the upper surface of the bottom plate at the position corresponding to each second support bar, and the distance between the convex platform and the bottom of the corresponding second support bar is equal to the distance between the two end points on both sides of the above-mentioned high-performance cable for electricity.

[0012] As a preferred technical solution of the present invention, insertion rods are slidably installed horizontally at the positions corresponding to both sides of the support frame at one end of the bottom plate; a sleeve matched with the insertion rods is fixedly installed at one end of the bottom plate.

[0013] As a preferred technical solution of the present invention, a telescopic spring is installed in the sleeve; the insertion rod is a round rod and the end thereof close to the bottom plate is hemispherical; both ends of the support frame are semi-circular arcs and positioning grooves matched with the end of the insertion rod are provided.

[0014] As a preferred technical solution of the present invention, when the support frame is in the storage state, the positioning grooves on both ends of the support frame are in contact with the hemispherical ends of the insertion rods, the insertion rods are inserted into the adjacent sleeves, and the telescopic spring in the sleeve is in a compressed state under the action of the insertion rods.

[0015] As a preferred technical solution of the present invention, a connecting belt penetrating through the support plate is fixedly installed on the top plate, the top of the support plate is arc-shaped and the connecting belt is in contact with the top of the support plate.

[0016] As a preferred technical solution of the present invention, a vertical groove is opened at the position of the connecting belt on the top of the support plate, water is stored in the vertical groove, and a lifting block with a density less than water is slidably installed in the vertical groove, and the top of the lifting block is flush with the top of the support plate.

[0017] In the above technical solution, the present invention provides a high-performance power cable which is a flat cable, and grooves are provided on the surface of the insulating protective layer, which has the following beneficial effects: first, the surface area of ​​the cable insulating protective layer is increased, thereby improving the heat dissipation effect of the cable; second, when the cable is deformed, the stress inside the insulating protective layer is relatively small, and cracking is not easy to occur; third, the cables can be stacked in an interlaced manner through the grooves, which can reduce the relative sliding between the cables during transportation and improve the stability of transportation.

[0018] The high-performance cable construction protection device provided by the present invention can support staggered cables; the cables are squeezed upward by the first support bar, so that adjacent cables are tightly fitted in the vertical direction, which greatly reduces the relative vibration between adjacent cables caused by external vibration, thereby reducing the damage caused by mutual friction between the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the structure of the high-performance cable for electric power in the embodiment;

[0021] Figure 2 Schematic diagram of the structure of the high-performance power cable in a coiled state in the embodiment;

[0022] Figure 3 This is a schematic diagram of the first three-dimensional structure of the high-performance cable construction protection device in the embodiment;

[0023] Figure 4 This is a schematic diagram of the installation state of the high-performance cable construction protection device in the embodiment;

[0024] Figure 5 2 is a schematic diagram of a second three-dimensional structure of the high-performance cable construction protection device in the embodiment;

[0025] Figure 6 for Figure 5 A magnified schematic diagram of point A in the middle;

[0026] Figure 7Schematic diagram of part of the internal structure of the high-performance cable construction protection device in the embodiment.

[0027] Description of reference numerals:

[0028] 1. Bottom plate; 2. Support plate; 201. Vertical groove; 3. Top plate; 4. First support bar; 5. Second support bar; 6. Support frame; 601. Positioning groove; 7. Boss; 8. Insert rod; 9. Sleeve; 10. Connecting belt; 11. Lifting block; 12. Insulation protective layer; 1201. Groove; 13. Wire. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] like Figure 1 As shown, this embodiment provides a high-performance power cable, comprising a flat insulating protective layer 12 and a plurality of conductors 13 located within the insulating protective layer 12; the insulating protective layer 12 is flat and has grooves 1201 symmetrically formed on both sides of the insulating protective layer 12; the plurality of conductors 13 are evenly arranged, and the grooves 1201 correspond to positions between two adjacent conductors 13. In this embodiment, the presence of the grooves 1201 increases the surface area of ​​the insulating protective layer 12 and improves the heat dissipation effect of the insulating protective layer 12. In addition, when the cable is subjected to external pressure, it will deform. The presence of the grooves 1201 reduces the internal stress of the insulating protective layer 12 when it deforms, making the insulating protective layer 12 less prone to cracking.

[0031] During the transportation of the cable, the cable needs to be wound onto the bobbin. The high-performance power cable in this embodiment is in the following state after winding: Figure 2 As shown, two adjacent turns in the radial direction are staggered, and the raised portion of the insulating protective layer 12 of one turn corresponds to the position of the groove 1201 in the insulating protective layer 12 of the other turn. In this way, the two adjacent turns of the cable are not prone to relative sliding during transportation, thereby improving the stability of the cable during transportation.

[0032] At construction sites for buildings and other structures, power is supplied to construction equipment via cables, which are then removed after construction is complete. To protect these cables, they are typically buried underground within the construction site. Before construction begins, a tunnel is dug along the cable route. Then, trenches are dug on both sides of the tunnel for the cables, and the cables are placed within the trenches. Finally, the tunnel is covered. To minimize the impact of construction on underground cables, specialized cable protection devices are also required.

[0033] like Figure 3 、 Figure 4 and Figure 5As shown in the figure, this embodiment also provides a high-performance cable construction protection device, which is applicable to the above-mentioned high-performance power cables, used to protect the cables, maintain the stability of the cables and avoid damage to the cables by external objects; during use, multiple high-performance cable construction protection devices are required to jointly protect the cables. The high-performance cable construction protection device specifically includes a bottom plate 1, a support plate 2 inserted and matched with the bottom plate 1, and a top plate 3 slidably matched with the support plate 2; the support plate 2 is in a vertical state, and both the bottom plate 1 and the top plate 3 are in a horizontal state; a number of mutually parallel first support bars 4 are evenly installed on the upper surface of the bottom plate 1, and a number of second support bars 5 parallel to the first support bars 4 are evenly installed on the lower surface of the top plate 3; the cross-sections of the second support bars 5 are all semi-circular arcs; the cross-section of the first support bar 4 is an inverted U shape, and the first support bar 4 is slidably matched with the bottom plate 1 in the vertical direction. A boss 7 is fixedly installed on the upper surface of the bottom plate 1 at the position corresponding to each second support bar 5, and the distance between the boss 7 and the bottom of the corresponding second support bar 5 is equal to the distance between the two end points on both sides of the high-performance power cable.

[0034] During the construction process of this embodiment, as Figure 4 shown, five cables are grouped together and installed in the area between the bottom plate 1, the support plate 2 and the top plate 3. The adjacent cables are arranged staggeredly, that is, the groove 1201 of one cable corresponds to the surface convex part of the adjacent cable, so that the cables will form an interlocking effect with each other and are not likely to produce relative sliding. Each cable corresponds to the position of the first support bar 4 and the second support bar 5 in turn. For the cable corresponding to the position of the second support bar 5, its bottom fits with the boss 7. After placing each cable in the established position, the construction worker adjusts the height of the top plate 3 so that the second support bar 5 fits with the top of the corresponding cable, and then lifts each first support bar 4 upward. The first support bar 4 pushes the corresponding cable upward, so that the adjacent cables are squeezed against each other in the vertical direction. In this way, the adjacent cables are squeezed in the interlocking state, greatly increasing the static friction between the adjacent cables and further avoiding relative movement between the adjacent cables.

[0035] As Figure 3 and Figure 5 shown, two U-shaped support frames 6 are rotatably installed on the lower surface of the bottom plate 1; the support frames 6 have a horizontal storage state and an inclined unfolding state, Figure 3The support frame 6 on the left side is in the expanded state, and the support frame 6 on the right side is in the stored state. A block is provided on the base plate 1 for blocking the support frame 6. The support frame 6 in the expanded state fits in with the block to ensure that the support frame 6 is stably in the expanded state. During later maintenance or disassembly, the area under the cable needs to be hollowed out first, and then the base plate 1 is supported by the support frame 6. At this time, the support frame 6 needs to remain in the expanded state, and the bottom of the support frame 6 is in contact with the soil layer. During normal use, the support frame 6 is in the stored state, and the middle part of the support frame 6 supports the first support bar 4, so that the first support bar 4 is at the top position of its vertical stroke relative to the base plate 1, thereby supporting the corresponding cable.

[0036] In summary, the support frame 6 in this embodiment can play different roles in different states: in the stored state, the support frame 6 supports the first support bar 4, so that the cables can be squeezed against each other; in the expanded state, the support frame 6 supports the bottom plate 1, ensuring that the cables on the bottom plate 1 remain horizontal and do not fall. In the expanded state, the support frame 6 no longer supports the first support bar 4, and the first support bar 4 no longer supports the corresponding cables. The static friction between adjacent cables is relatively low, allowing operators to pull out the inner layer of cables for maintenance or replacement. When reinstalling the cables, since there are gaps between the two adjacent bottom plates 1, the operator can use a wire clamp to clamp the cable to be installed and then move the cable horizontally.

[0037] like Figure 5 and Figure 6 As shown, one end of the base plate 1 is slidably installed with an insertion rod 8 in the horizontal direction at the position corresponding to both sides of the support frame 6; one end of the base plate 1 is fixedly installed with a sleeve 9 that cooperates with the insertion rod 8, and a telescopic spring is installed in the sleeve 9, one end of the telescopic spring is flush with the opening of the sleeve 9, and the other end of the telescopic spring is fixedly connected to the inner end surface of the sleeve 9; the insertion rod 8 is a round rod and its end close to the base plate 1 is hemispherical; both side ends of the support frame 6 are semicircular, and are provided with positioning grooves 601 that cooperate with the ends of the insertion rod 8; when the support frame 6 is in the storage state, the positioning grooves 601 on its both side ends are in contact with the hemispherical ends of the insertion rod 8, and the insertion rod 8 is inserted into the adjacent sleeve 9, and the telescopic spring in the sleeve 9 is in a compressed state under the action of the insertion rod 8. In this way, the telescopic spring applies a force to the insertion rod 8, so that the end of the insertion rod 8 rests on the positioning groove 601, and the support frame 6 is kept in the storage state, thereby maintaining the support state of the first support bar 4, so that the cables can be kept in a state of mutual squeezing in the vertical direction, and even if external vibrations are transmitted to the cables, the cables can remain in a stable state; in addition, the insertion rod 8 is inserted into the adjacent sleeve 9, so that the two adjacent high-performance cable construction protection devices remain flush, thereby ensuring that the entire cable is in a horizontal state.

[0038] When adjusting the support frame 6 from the storage state to the deployment state, the operator first translates the insertion rod 8 so that the insertion rod 8 is separated from the positioning groove 601, and then rotates the support frame 6. When adjusting the support frame 6 from the deployment state to the storage state, the operator directly rotates the support frame 6. During the rotation process, the ends of the two sides of the support frame 6 first push the corresponding insertion rod 8 into the sleeve 9 to a certain depth, and the telescopic spring is compressed. When the support frame 6 is rotated to the horizontal state, the insertion rod 8 corresponds to the positioning groove 601. Under the action of the telescopic spring, the insertion rod 8 translates a distance to the outside of the sleeve 9, but a part of the insertion rod 8 is still inserted into the sleeve 9. In summary, the insertion rod 8 in this embodiment cooperates with the adjacent sleeve 9 on the one hand to ensure that the two adjacent high-performance cable construction protection devices are in a flush state; on the other hand, it cooperates with the support frame 6 to ensure that the support frame 6 is in a stable storage state.

[0039] Under normal circumstances, the soil layer above the top plate 3 can buffer ground vibrations. However, in colder regions, the shallow soil freezes, significantly reducing its ability to buffer ground vibrations. This increases the vibrations transmitted to the top plate 3, causing the top plate 3 to move downward under the vibrations, pressing against the cables. This prolonged, high pressure can cause the cables to crack. To mitigate this, this embodiment incorporates the following design.

[0040] like Figure 7 As shown, a connecting belt 10 is fixedly mounted on the top plate 3 and passes through the support plate 2. The connecting belt 10 is a non-elastic belt with a width of 10 cm and a thickness of 5 mm. The top of the support plate 2 is curved, and the connecting belt 10 fits in contact with the top of the support plate 2. A vertical groove 201 is provided at the top of the support plate 2 corresponding to the position of the connecting belt 10. Water is stored in the vertical groove 201, and a lifting block 11 with a density less than that of water is slidably mounted in the vertical groove 201. Under normal circumstances, the top of the lifting block 11 is flush with the top of the support plate 2. The connecting belt 10 can slide relative to the support plate 2, making it easier for the operator to adjust the height of the top plate 3. When the weather is extremely cold and the external temperature drops, causing the surface soil to freeze, the water stored in the vertical trough 201 will also freeze. After the water freezes, its volume increases relatively, thereby supporting the lifting block 11, and the lifting block 11 has a tensioning effect on the connecting belt 10. The connecting belt 10 is difficult to slide relative to the support plate 2, and the top plate 3 is able to maintain a stable height, and it is not easy to continue to squeeze the cable downward under the action of large external vibrations.

[0041] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A high-performance cable for electric power, comprising an insulating protective layer (12) and a plurality of conductors (13) located inside the insulating protective layer (12), characterized in that: The insulating protective layer (12) is flat, and grooves (1201) are symmetrically formed on both sides of the insulating protective layer (12); a plurality of wires (13) are evenly arranged, and the grooves (1201) correspond to the positions between adjacent two wires (13).

2. A high-performance cable construction protection device, suitable for the high-performance power cable according to claim 1, characterized in that: It includes a bottom plate (1), a support plate (2) inserted and matched with the bottom plate (1), and a top plate (3) slidably matched with the support plate (2); a plurality of mutually parallel first support bars (4) are evenly installed on the upper surface of the bottom plate (1), and a plurality of second support bars (5) parallel to the first support bars (4) are evenly installed on the lower surface of the top plate (3).

3. A high performance cable construction protection device according to claim 2, characterized in that: The cross-sections of the second support bars (5) are all semi-circular arcs; the cross-section of the first support bars (4) is an inverted U shape; the first support bars (4) are slidably matched with the bottom plate (1) in the vertical direction.

4. A high performance cable construction protection device according to claim 3, characterized in that: A U-shaped support frame (6) is rotatably installed on the lower surface of the bottom plate (1); the support frame (6) has a horizontal storage state and an inclined deployment state.

5. A high performance cable construction protection device according to claim 4, characterized in that: A boss (7) is fixedly installed on the upper surface of the bottom plate (1) at the position corresponding to each second support bar (5), and the distance between the boss (7) and the bottom of the corresponding second support bar (5) is equal to the distance between the two end points on both sides of the high-performance power cable.

6. A high performance cable construction protection device according to claim 4, characterized in that: Plug rods (8) are slidably installed horizontally at the positions corresponding to both sides of the support frame (6) at one end of the bottom plate (1); a sleeve (9) cooperating with the plug rods (8) is fixedly installed at one end of the bottom plate (1).

7. A high performance cable construction protection device according to claim 6, characterized in that: A telescopic spring is installed in the sleeve (9); the plug rods (8) are round rods, and one end thereof close to the bottom plate (1) is hemispherical; both end parts of the support frame (6) are semi-circular arcs, and positioning grooves (601) cooperating with the end parts of the plug rods (8) are formed.

8. A high performance cable construction protection device according to claim 7, characterized in that: When the support frame (6) is in the storage state, the positioning grooves (601) on both end parts thereof are in contact with the hemispherical end parts of the plug rods (8), the plug rods (8) are inserted into the adjacent sleeves (9), and the telescopic spring in the sleeves (9) is in a compressed state under the action of the plug rods (8).

9. A high performance cable construction protection device according to claim 2, characterized in that: A connecting band (10) penetrating through the support plate (2) is fixedly installed on the top plate (3), the top of the support plate (2) is arc-shaped, and the connecting band (10) is in contact with the top of the support plate (2).

10. A high performance cable construction protection device according to claim 9, characterized in that: A vertical groove (201) is formed at the position corresponding to the connecting band (10) on the top of the support plate (2), water is stored in the vertical groove (201), a lifting block (11) with a density less than that of water is slidably installed in the vertical groove (201), and the top of the lifting block (11) is flush with the top of the support plate (2).

Images