Construction power cable which is not easily damaged

Abstract

This invention belongs to the field of power technology and discloses a power cable that is not easily damaged during construction. It includes a cable core and at least one first protective component. The first protective component consists of a first body and a first gas filling chamber. The first body has a first central hole and a first gas-containing cavity inside, which does not extend through both ends of the first body. The first gas filling chamber is installed on the first body and communicates with the first gas-containing cavity. The first gas-containing cavity is distributed along the interior of the first body, and gas can only enter the interior of the first gas filling chamber unidirectionally from the outside. A portion of the cable core is located within the first central hole. Multiple first protective components are connected sequentially, and adjacent first central holes are interconnected. This application has the following main beneficial technical effects: simple structure, easy assembly, flexible use, stronger pressure resistance, and superior protection performance for the cable core, resulting in higher efficiency and lower cost in power construction and maintenance.

Description

Technical Field

[0001] This invention belongs to the field of power technology, and in particular relates to a power cable that is not easily damaged during construction. Background Technology

[0002] In power construction and emergency repairs, cables are usually laid directly on the ground. However, due to passing vehicles, the cables are often damaged, affecting the construction progress.

[0003] CN221447935U discloses a cable laying and pulling device for power construction, including a cable pulling head; the cable pulling head has a through cable hole; an arc-shaped plate is provided in the cable hole, and the arc-shaped plate is adjusted to move away from / close to the central axis of the cable hole; and a tail is provided at the end of the arc-shaped plate, which is installed at the opening of the cable hole; in use, the end of the cable can be inserted into the cable hole. If the diameter of the cable hole is larger than the diameter of the cable, the position of the arc-shaped plate needs to be adjusted by the adjusting device to press the arc-shaped plate onto the cable; compared with the prior art of directly using bolts to press against the cable, this device has an arc-shaped plate, which can increase the contact area between the cable and the arc-shaped plate, thereby increasing the friction between the cable and the arc-shaped plate and helping to clamp the cable stably; at the same time, the increased contact area between the arc-shaped plate and the cable increases the force transmission surface, which can effectively protect the cable and prevent the cable from being crushed by the arc-shaped plate.

[0004] CN210577699U discloses a tool for fixing buried PVC power pipes, including a base block with a top block movably connected to its top. Both the top of the base block and the bottom of the top block have semi-circular openings, and rubber pads are fixedly fitted inside the semi-circular openings. The bottom of the top block has locking slots on both sides. This tool, by incorporating rubber pads, locking blocks, and threaded rods, achieves a uniform and aesthetically pleasing arrangement of the PVC cable protection pipes due to the equidistant distribution of the rubber pads in the vertical direction. This also prevents the PVC cable protection pipes from being squeezed and damaged. Furthermore, the cooperation between the locking blocks and threaded rods secures the base block, top block, and PVC cable protection pipes. The tool is simple and convenient to operate, thus increasing its practicality.

[0005] The aforementioned existing technologies cannot provide comprehensive protection for the cable and are cumbersome to assemble. Summary of the Invention

[0006] To address the aforementioned problems, the purpose of this invention is to disclose a power cable that is not easily damaged during construction, which is achieved through the following technical solution.

[0007] A power cable that is not easily damaged during construction includes a cable core containing a conductor capable of transmitting electricity. The cable is characterized by further comprising a first protective component, which consists of a first body and a first gas filling chamber. The first body is a ring-shaped cylindrical structure. The first body has a first central hole extending along its axial direction. The first body also has a first gas-containing cavity continuously extending along its axial direction. This first gas-containing cavity does not penetrate both ends of the first body. The first gas filling chamber is installed on the first body and communicates with the first gas-containing cavity. The first gas-containing cavity is distributed in a ring shape along the entire circumference of the interior of the first body, allowing gas to enter the interior of the first gas filling chamber unidirectionally from the outside. A portion of the cable core is located within the first central hole.

[0008] The aforementioned power cable, which is not easily damaged during construction, is characterized by: having a second protective component; one end of the first body has a protruding third gas filling gas, which communicates with the first gas cavity, and the gas can only pass through and flow out of the first gas cavity in one direction; the second protective component is composed of a second body, which is a ring-shaped cylindrical structure, with a second central hole extending along the axial extension direction of the second body inside, and a second gas cavity continuously extending along the axial extension direction of the second body inside, the second gas cavity not penetrating both ends of the second body; the second gas cavity is distributed in a ring shape along the entire circumference of the interior of the second body, and the other end of the second body has a recessed fourth gas filling gas, which communicates with the second gas cavity, and the gas can only pass through the third gas filling gas in one direction from the outside and enter the second gas cavity; in the assembled state, the third gas filling gas extends into the fourth gas filling gas, one end of the first body and the other end of the second body are in close contact, the first central hole and the second central hole are connected and coaxial, and a portion of the cable core is located in the first central hole and the second central hole.

[0009] The aforementioned power cable, which is not easily damaged during construction, is characterized by having two identical second protective components, and the other end of the first body also having a protruding third gas filling gas, which is connected to the first gas cavity. Gas can only pass through the first gas cavity in one direction and flow out of the third gas filling gas. In the assembled state, the third gas filling gas extends into the fourth gas filling gas, and the two ends of the first body are respectively in close contact with the other ends of the two second bodies. The first center hole is connected to the second center hole and is coaxial. A part of the cable core is located in the first center hole and the second center hole.

[0010] The aforementioned power cable, which is not easily damaged during construction, is characterized by having: a third protective component, which is a ring-column structure, having an axially extending third central hole inside; in the assembled state, the third protective component is inserted into the first central hole; when a second protective component is present, the third protective component is also inserted into the second central hole; the outer surface of the third protective component is in close contact with the inner surfaces of the first and second protective components; a portion of the cable core is located within the third central hole.

[0011] The aforementioned power cable, which is not easily damaged during construction, is characterized in that: the third protective component consists of a third body and a first gas container, the first gas container being attached to the outer surface of the third body, the third central hole being located within the third body, and the first gas container being separated by a plurality of warp grooves parallel to the extension axis of the third body and a plurality of weft grooves perpendicular to the extension axis of the third body; in the assembled state, the third protective component is inserted into the first central hole, and when a second protective component is present, the third protective component is also inserted into the second central hole, the outer surface of the first gas container being in close contact with the inner surfaces of the first and second protective components; a portion of the cable core is located within the third central hole.

[0012] The above-described power cable that is not easily damaged during construction is characterized in that: the first protective component is covered with an outer sheath; when a second protective component is provided, the second protective component is also covered with an outer sheath.

[0013] This application has the following main beneficial technical effects: simple structure, easy assembly, flexible use, stronger pressure resistance, and better protection performance for the cable core, making power construction and maintenance more efficient and less costly. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a section of a first protective component used in Implementation Example 1.

[0015] Figure 2 for Figure 1 A magnified cross-sectional diagram after rotation.

[0016] Figure 3 for Figure 1 A top-down view of the structure after rotation and magnification.

[0017] Figure 4 for Figure 1 A schematic diagram of the three-dimensional structure after being cut in half.

[0018] Figure 5 This is a three-dimensional structural diagram of the first and second protective components before assembly in Example 2.

[0019] Figure 6 for Figure 5 Enlarged top-down structural diagram.

[0020] Figure 7 for Figure 5 This is a top view of the structure of the first and second protective components before assembly in Example 3.

[0021] Figure 8 This is a three-dimensional structural diagram of the first and third protective components before assembly in Example 4.

[0022] Figure 9 This is a three-dimensional structural diagram of a section of the third protective component used in Implementation Example 5.

[0023] Figure 10 for Figure 9 Enlarged cross-sectional structural diagram.

[0024] Figure 11 This is a three-dimensional structural diagram showing the disassembly of the first protective component, the third protective component, and the outer sheath before assembly in Example 6.

[0025] Figure 12 This is a three-dimensional structural diagram of a section of the first protective component used in Example 7. Detailed Implementation

[0026] To enable those skilled in the art to better understand and implement this patent, the markings in the accompanying drawings are explained in detail below.

[0027] In the figure: 1—First protective component, 11—First body, 12—First gas filling, 13—First gas chamber, 14—Third gas filling, 110—First central hole, 2—Second protective component, 21—Second body, 22—Second gas filling, 24—Fourth gas filling, 210—Second central hole, 3—Third protective component, 30—Third central hole, 31—Third body, 32—First gas chamber, 33—Warp groove, 34—Weft groove, 4—Outer sheath.

[0028] Implementation Example 1: Please see Figures 1 to 4A power cable that is not easily damaged during construction includes a cable core containing a conductor capable of transmitting electricity. The cable is characterized by further comprising a first protective component 1, which consists of a first body 11 and a first gas filling 12. The first body 11 has a ring-shaped cylindrical structure. The first body 11 has a first central hole 110 extending along the axial direction of the first body 11. The first body 11 also has a first gas-containing cavity 13 continuously extending along the axial direction of the first body 11. The first gas-containing cavity 13 does not penetrate both ends of the first body 11. The first gas filling 12 is mounted on the first body 11 and communicates with the first gas-containing cavity 13. The first gas-containing cavity 13 is distributed in a ring shape along the entire circumference of the interior of the first body 11. The outer end of the first gas filling 12 protrudes from the outer surface of the first body 11, allowing gas to enter the interior of the first gas filling 12 unidirectionally from the outside. A portion of the cable core is located within the first central hole 110.

[0029] Implementation Example 2: Please see Figures 5 to 6 and refer to Figures 1 to 4 A power cable that is not easily damaged during construction is basically the same as in Embodiment 1, except that it also has a second protective component 2. One end of the first body 11 has a protruding third gas filling 14, which is connected to the first gas cavity 13. Gas can only pass through the first gas cavity 13 in one direction and flow out of the third gas filling 14. The second protective component 2 is composed of a second body 21 and a second gas filling 22. The second body 21 has a ring-shaped cylindrical structure. The interior of the second body 21 has a second central hole 210 extending along the axial extension direction of the second body 21. The interior of the second body 21 has a second gas cavity that extends continuously along the axial extension direction of the second body 21. The second gas cavity does not penetrate through both ends of the second body 21. The second gas filling 22 is installed on the second body 21. It is connected to the second gas cavity; the second gas cavity is distributed in a ring shape along the entire circumference of the interior of the second body 21, the outer end of the second gas filling 22 protrudes from the outer surface of the second body 21, and the gas can only enter the interior of the second gas filling 22 from the outside of the second body 21 in one direction; the other end of the second body 21 has a recessed fourth gas filling 24, which is connected to the second gas cavity, and the gas can only pass through the third gas filling 14 from the outside in one direction and enter the second gas cavity; in the assembled state, the third gas filling 14 extends into the fourth gas filling 24, one end of the first body 11 is in close contact with the other end of the second body 21, the first center hole 110 is connected to the second center hole 210 and coaxial, and a part of the cable core is located in the first center hole 110 and the second center hole 210.

[0030] Implementation Example 3: Please see Figure 7 and refer to Figures 1 to 6A power cable that is not easily damaged during construction is basically the same as that in Implementation Example 2, except that: it has two identical second protective components 2, and the other end of the first body 11 also has a protruding third gas filling 14. The third gas filling 14 is connected to the first gas chamber 13, and the gas can only pass through the first gas chamber 13 in one direction and flow out of the third gas filling 14. In the assembled state, the third gas filling 14 extends into the fourth gas filling 24. The two ends of the first body 11 are respectively in close contact with the other ends of the two second bodies 21. The first central hole 110 and the second central hole 210 are connected and coaxial. A part of the cable core is located in the first central hole 110 and the second central hole 210.

[0031] In this embodiment and in embodiment 2, the second gas filling gas 22 may not be present.

[0032] Implementation Example 4: Please see Figure 8 and refer to Figures 1 to 7 A power cable that is not easily damaged during construction, basically the same as any one of the embodiments 1-3, except that it also has: a third protective component 3, the third protective component 3 is a ring-column structure, the third protective component 3 has an axially extending third central hole 30 inside, in the assembled state, the third protective component 3 is inserted into the first central hole, when there is a second protective component, the third protective component 3 is also inserted into the second central hole, the outer surface of the third protective component 3 is in close contact with the inner surfaces of the first protective component and the second protective component; the third protective component 3 is made of a highly elastic material, which can be plastic, or made of plastic and has a cavity inside, the cavity is filled with gas, and a part of the cable core is located in the third central hole 30.

[0033] Implementation Example 5: Please see Figure 9-10 and refer to Figures 1 to 8 A power cable that is not easily damaged during construction is basically the same as in Embodiment 4, except that: the third protective component 3 is composed of a third body 31 and a first gas-bearing component 32. The first gas-bearing component 32 is attached to the outer surface of the third body 31, and the third central hole 30 is located inside the third body 31. The first gas-bearing component 32 is separated by a plurality of warp grooves 33 parallel to the extension axis of the third body 31 and a plurality of weft grooves 34 perpendicular to the extension axis of the third body 31. In the assembled state, the third protective component 3 is inserted into the first central hole. When a second protective component is present, the third protective component 3 is also inserted into the second central hole. The outer surface of the first gas-bearing component 32 is in close contact with the inner surfaces of the first and second protective components. The first gas-bearing component 32 is a highly elastic material, which can be plastic, or made of plastic with an internal cavity filled with gas. A portion of the cable core is located inside the third central hole 30.

[0034] Implementation Example 6: Please see Figure 11 and refer to Figures 1 to 10 A power cable that is not easily damaged during construction is basically the same as that in Implementation Example 4 and Implementation Example 5, except that: the first protective component 1 is covered with an outer sheath 4; when there is a second protective component, the second protective component is also covered with an outer sheath.

[0035] Implementation Example 7: Please see Figure 12 and refer to Figures 1 to 11 A power cable that is not easily damaged during construction is basically the same as any of the above embodiments, except that: the outer end of the first gas-filled 12 does not protrude from the outer surface of the first body 11, but is flush with or recessed relative to the outer surface of the first body 11.

[0036] In this application, a portion of the cable core is located inside the first central hole, the second central hole, and the third central hole. This is achieved as follows: Since the cable core is long and thin, it is only necessary to cover the cable core in the position that will be compressed with the first body and / or the second body. It does not matter whether the cable core in other positions is covered by the first body and / or the second body.

[0037] In this application, when there is only one first protective component, it only needs to have sufficient length, or it can be divided into multiple segments or multiple identical first protective components. In this way, by inflating the first gas filling gas 12, the first gas chamber 13 has sufficient air pressure, making it less likely to damage the cable core when a vehicle passes by. When there is also a third protective component inside, it has better protective performance.

[0038] In this application, when the first protective component and the second protective component are connected, the second protective component may not have the second filling gas 22. In this way, when the gas filled by the first filling gas 12 reaches a certain pressure, the third filling gas 14 is forced in, and then the fourth filling gas 24 is entered, thus achieving the filling of the second gas chamber. Of course, when the second filling gas 22 is present, the second filling gas 22 can also be filled.

[0039] In this application, the first gas filling 12, the second gas filling 22, the third gas filling 14, and the fourth gas filling 24 are all one-way valves. The simplest implementation is similar to the valve core structure on a car tire or the valve core structure on a football or basketball.

[0040] In this application, it can also be expanded by using a first protective component 1 and a second protective component 2 connected together as a group.

[0041] Furthermore, this application can be expanded by grouping one first protective component 1 and two second protective components 2 together.

[0042] This application can be further expanded by combining the two methods described above.

[0043] In this application, the first gas filling gas 12 of embodiment 7 can be used in any other embodiment, or can replace the structure of the second gas filling gas 22.

[0044] In this application, because the first protective component, the second protective component, etc., have high elasticity, rapid recovery capability, and high pressure resistance, the internal cable core is not easily damaged by the brief pressure exerted by vehicles or other objects passing by. Moreover, the presence of a third protective component further enhances its pressure resistance.

[0045] The first, second, and third protective components in this application can be assembled after the cable core is manufactured, or assembled during use, greatly improving the flexibility of use. Moreover, they can be assembled as needed when encountering wider roads.

[0046] In this application, since the lateral pressure resistance of the cable core is increased, there is no need to worry about the construction or maintenance progress being affected by the cable core being damaged by vehicles. This improves the efficiency of construction or maintenance, saves construction or maintenance costs, allows the cable core to be used for a long time, and the diameter of the cable core only needs to be no larger than the diameter of the corresponding center hole.

[0047] The first protective component, the second protective component, and the third protective component in this application are all integral structures.

[0048] The third body 31 in this application is multiple discrete entities, which greatly improves its reliability.

[0049] The ring-shaped structure in this application is preferably a circular ring-shaped structure, but it can also be an elliptical ring-shaped structure, a polygonal prism ring, etc.

[0050] This application has the following main beneficial technical effects: simple structure, easy assembly, flexible use, stronger pressure resistance, and better protection performance for the cable core, making power construction and maintenance more efficient and less costly.

[0051] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A power cable that is not easily damaged during construction, comprising a cable core containing a conductor capable of transmitting power, characterized in that: It also has at least one first protective component, which is composed of a first body and a first gas filling gas. The first body is a ring-shaped cylindrical structure. The first body has a first central hole extending along the axial extension direction of the first body. The first body also has a first gas-containing cavity extending continuously along the axial extension direction of the first body. The first gas-containing cavity does not penetrate through both ends of the first body. The first gas filling gas is installed on the first body and communicates with the first gas-containing cavity. The first gas-containing cavity is distributed in a ring shape along the entire circumference of the interior of the first body. Gas can only enter the interior of the first gas filling gas unidirectionally from the outside of the first gas filling gas. A part of the cable core is located in the first central hole. It has multiple first protective components, which are connected sequentially, and adjacent first central holes are connected.

2. The power cable that is not easily damaged during construction according to claim 1, characterized in that: It has n first protective components and n second protective components. One end of the first body has a protruding third gas filling gas, which communicates with the first gas cavity. Gas can only pass through the first gas cavity in one direction and flow out of the third gas filling gas. The second protective components are composed of a second body, which is a ring-cylinder structure. The second body has a second central hole extending along the axial extension direction of the second body. The second body also has a second gas cavity extending continuously along the axial extension direction of the second body. The second gas cavity does not penetrate both ends of the second body. The second gas cavity is circular along the interior of the second body. The components are arranged in a ring shape in the circumferential direction. The other end of the second body has a recessed fourth gas filling gas, which is connected to the second gas cavity. Gas can only pass through the third gas filling gas and enter the second gas cavity from the outside in a one-way direction. In the assembled state, a first protective component and a second protective component form a group. In each group, the third gas filling gas extends into the fourth gas filling gas. One end of the first body and the other end of the second body are in close contact. The first center hole and the second center hole are connected and coaxial. A part of the cable core is located in the first center hole and the second center hole. All groups are arranged in sequence. The center holes between adjacent groups are connected. n is a positive integer.

3. A power cable that is not easily damaged during construction, as described in claim 2, characterized in that: The first body has n identical first protective components and 2n identical second protective components. The other end of the first body also has a protruding third gas filling gas, which is connected to the first gas cavity. Gas can only pass through the first gas cavity in one direction and flow out of the third gas filling gas. In the assembled state, one first protective component and two second protective components form a group. In each group, the third gas filling gas extends into the fourth gas filling gas. The two ends of the first body are respectively in close contact with the other ends of the two second bodies. The first center hole and the second center hole are connected and coaxial. A part of the cable core is located in the first center hole and the second center hole. All groups are arranged in sequence, and the center holes between adjacent groups are connected.

4. A power cable that is not easily damaged during construction according to any one of claims 1 to 3, characterized in that: It also has: a third protective component, which is a ring-shaped structure, with an axially extending third central hole inside. When assembled, the third protective component is inserted into the first central hole. When a second protective component is present, the third protective component is also inserted into the second central hole. The outer surface of the third protective component is in close contact with the inner surfaces of the first and second protective components. A portion of the cable core is located inside the third central hole.

5. A power cable that is not easily damaged during construction according to claim 4, characterized in that: The third protective component consists of a third body and a first gas container. The first gas container is attached to the outer surface of the third body. The third central hole is located inside the third body. The first gas container is separated by multiple warp grooves parallel to the extension axis of the third body and multiple weft grooves perpendicular to the extension axis of the third body. In the assembled state, the third protective component is inserted into the first central hole. When a second protective component is present, the third protective component is also inserted into the second central hole. The outer surface of the first gas container is in close contact with the inner surfaces of the first and second protective components. A portion of the cable core is located inside the third central hole.

6. A power cable that is not easily damaged during construction, as described in claim 5, characterized in that: The first protective component is covered by an outer sheath; when a second protective component is provided, the second protective component is also covered by an outer sheath.

7. A power cable that is not easily damaged during construction according to claim 6, characterized in that: The first gas filling is done via a one-way valve.

8. A power cable that is not easily damaged during construction according to claim 2 or claim 3, characterized in that: The second protective component also has a second gas filling gas, which is installed on the second body and communicates with the second gas cavity; the outer end of the second gas filling gas protrudes from the outer surface of the second body, and the gas can only enter the interior of the second gas filling gas from the outside of the second body in one direction.

9. A power cable that is not easily damaged during construction according to claim 4 or claim 5, characterized in that: The third protective component is made of highly elastic plastic, or is made of plastic with an internal cavity filled with gas.

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