Aerial insulated cable

Abstract

The utility model relates to the technical field of cables, in particular to an aerial insulated cable, which comprises a bearing cable and an inner core. The bearing assembly is arranged between the bearing cable and the inner core, and the bearing assembly is used for supporting the inner core; and the quick-mounting assembly is mounted on one side of the bearing assembly, and the quick-mounting assembly is used for assembling the bearing assembly. Compared with the prior art, by arranging the load-bearing assembly and the quick-mounting assembly, sagging of the cable is effectively reduced, the mounting process is simplified, the assembling efficiency is improved, and meanwhile the stability of the load-bearing assembly and stable operation of the cable are ensured.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to an overhead insulated cable. Background Technology

[0002] Overhead cables, as an indispensable and crucial component of modern power transmission networks, play a key role in efficiently and safely transmitting electricity from power plants to users in cities, rural areas, and even remote regions. Their widespread application extends beyond bustling urban skylines to remote rural fields and mountainous regions, providing a solid foundation for the electricity needs of various industries. The installation process and structural design of overhead cables are extremely sophisticated, typically relying on sturdy and durable power poles or meticulously designed support systems to support and suspend the cables. This ensures that the cables maintain a certain tension and height, effectively avoiding direct contact with the ground or other obstacles, further guaranteeing the safety and reliability of power transmission.

[0003] In the prior art, Chinese patent document CN222213769U on overhead insulated cables proposes to reduce the sag of overhead cables by setting up load-bearing cables, flexible connection of sliding sleeves, setting fireproof layers and filling layers, etc. However, the load-bearing cables are only connected to the inner core by connecting sleeves and sliding sleeves, which is inconvenient to disassemble. Moreover, the sliding friction between the load-bearing cables and sliding sleeves may cause wear and excessive movement, thereby affecting the stability and service life of the cable. Utility Model Content

[0004] The purpose of this invention is to propose an overhead insulated cable to solve the problems of traditional cables sag after installation, complex installation, and easy wear.

[0005] For the purposes mentioned above, this utility model provides an overhead insulated cable, comprising: a load-bearing cable and an inner core;

[0006] A load-bearing component is disposed between the load-bearing cable and the inner core, and the load-bearing component is used to support the inner core;

[0007] A quick-assembly assembly is installed on one side of the load-bearing component and is used to assemble the load-bearing component.

[0008] Preferably, the load-bearing component includes a first contact sleeve and a second contact sleeve disposed on the outer circumference of the load-bearing cable. Connecting seats are symmetrically installed on both sides of the first contact sleeve, and quick-release shells are symmetrically installed on both sides of the second contact sleeve. A connecting arm is fixedly installed on one side of the connecting seat, and a connecting sleeve is fixedly installed on the side of the connecting arm away from the connecting seat. The inner core is disposed inside the connecting sleeve.

[0009] Preferably, the first contact sleeve and the second contact sleeve are provided with a plurality of mounting grooves, and the mounting grooves are filled with graphite.

[0010] Preferably, both the first contact sleeve and the second contact sleeve are components made of polytetrafluoroethylene.

[0011] Preferably, the quick-release assembly includes a locking rod slidably installed inside the quick-release housing. The quick-release housing has an installation cavity with two locking balls inside. A locking post is fixedly installed at the end of the locking rod away from the quick-release housing. The locking post has symmetrically formed grooves that are adapted to the locking balls. The connecting seat has a locking groove that is adapted to the locking balls.

[0012] Preferably, the quick-release housing has symmetrical through holes on the side near the connecting seat, and the through holes are adapted to the locking ball.

[0013] Preferably, a sliding plate is fixedly installed on the side of the locking rod away from the locking pin, a fixing plate is fixedly installed on the side of the mounting cavity near the connecting seat, a return spring is provided on the outer surface of the locking rod, one end of the return spring is fixedly installed on one side of the sliding plate, and the other end of the return spring is fixedly installed on one side of the fixing plate.

[0014] The beneficial effects of this utility model are:

[0015] 1. This type of overhead insulated cable, by being equipped with a load-bearing component, which is placed between the load-bearing cable and the inner core, effectively disperses and bears the external forces that the overhead cable may encounter during operation, effectively preventing the inner core from sagging or being affected by uneven stress, thereby ensuring the stability of the cable structure.

[0016] 2. This type of overhead insulated cable, equipped with a quick-release assembly, simplifies the assembly process between the load-bearing component, the load-bearing cable, and the inner core through the cooperation of components such as the locking rod, locking ball, and locking post. After the load-bearing component is installed in the predetermined position, the operator presses the locking rod, compressing the return spring and storing elastic potential energy. Subsequently, the locking rod smoothly moves, aligning the groove on the locking post with the locking ball in the installation cavity, creating conditions for the locking ball to move. Next, the operator pushes the quick-release housing towards the connecting seat, and the locking ball, under the action of the pushing force, enters the installation cavity and engages with the groove on the locking post. After the quick-release housing reaches the predetermined position, the operator... When the operator releases the pressure on the locking rod, the return spring releases its elastic potential energy, pushing the locking rod back to its original position. The locking ball is then squeezed out and engages with the locking groove of the connecting seat, thus completing the rapid installation and fixation of the load-bearing component. Unlocking is achieved simply by pressing the locking rod, allowing for quick disassembly. This greatly improves installation efficiency and simplifies the assembly process between the load-bearing component, the load-bearing cable, and the inner core, making the installation process more convenient and efficient. It can be completed without complex tools or cumbersome steps, reducing the difficulty and time cost of manual operation. At the same time, it ensures the stability and reliability of the load-bearing component after installation, providing a solid guarantee for the stable operation of the cable. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the load-bearing component of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the quick-assembly component of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the first contact sleeve and the second contact sleeve of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Load-bearing cable; 2. Inner core; 3. Connecting sleeve; 4. Connecting seat; 5. Connecting arm; 6. Quick-release housing; 7. Locking rod; 8. First contact sleeve; 10. Second contact sleeve; 11. Mounting cavity; 12. Slide plate; 13. Return spring; 14. Fixing plate; 15. Through hole; 16. Locking ball; 17. Locking groove; 18. Locking pin; 19. Mounting groove; 20. Groove. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0024] like Figures 1 to 4As shown, the overhead insulated cable includes: a load-bearing cable 1 and an inner core 2; a load-bearing assembly, which is disposed between the load-bearing cable 1 and the inner core 2 and is used to support the inner core 2; and a quick-connect assembly, which is installed on one side of the load-bearing assembly and is used to assemble the load-bearing assembly.

[0025] First, the load-bearing cable 1 is fitted onto the inner core 2 to ensure the basic shape and stability of the cable structure. The load-bearing component is placed in the space between the load-bearing cable 1 and the inner core 2, providing solid support for the inner core 2. This effectively disperses and withstands various external forces that the cable may encounter during overhead laying, such as wind, its own weight, and possible accidental impacts, thereby ensuring the continuity and reliability of signal or power transmission within the cable. To further improve assembly efficiency and ensure structural robustness, a quick-connect component is installed on one side of the load-bearing component. This component simplifies the assembly process between the load-bearing component, the load-bearing cable 1, and the inner core 2, making the entire assembly process more convenient and efficient. It can be completed without complicated tools or cumbersome steps, greatly saving manpower and time costs. The cooperation between the load-bearing component and the quick-connect component provides a solid guarantee for the stable operation of the power system.

[0026] like Figure 1 , Figure 4 As shown, the load-bearing component includes a first contact sleeve 8 and a second contact sleeve 10 disposed on the outer circumference of the load-bearing cable 1. Connecting seats 4 are symmetrically installed on both sides of the first contact sleeve 8, and quick-release shells 6 are symmetrically installed on both sides of the second contact sleeve 10. A connecting arm 5 is fixedly installed on one side of the connecting seat 4, and a connecting sleeve 3 is fixedly installed on the side of the connecting arm 5 away from the connecting seat 4. The inner core 2 is disposed inside the connecting sleeve 3. Several mounting grooves 19 are formed inside the first contact sleeve 8 and the second contact sleeve 10, and the mounting grooves 19 are filled with graphite. Both the first contact sleeve 8 and the second contact sleeve 10 are components made of polytetrafluoroethylene.

[0027] During the actual operation of the cable, as the relative sliding motion occurs between the load-bearing cable 1 and the inner core 2, graphite, as a lubricating medium, can quickly form a stable and durable lubricating film on the friction interface due to its micro-release characteristics. This lubricating film not only greatly reduces the sliding friction coefficient, ensuring smooth sliding motion, but also effectively prevents high temperatures and wear caused by friction, thereby extending the overall service life of the cable. The first contact sleeve 8 and the second contact sleeve 10 are tightly fitted to the outer circumference of the load-bearing cable 1, and the two form a stable and flexible support structure through quick-release components symmetrically installed on their respective sides. The inner core 2 is placed in the connecting sleeve 3, ensuring efficient and stable cable signal transmission. It is particularly worth mentioning that the polytetrafluoroethylene material used in the first contact sleeve 8 and the second contact sleeve 10 not only has wear resistance and corrosion resistance, but also further enhances the graphite lubrication effect due to its low coefficient of friction, making the relative sliding between the load-bearing components and the inner core 2 smoother, significantly reducing friction, and effectively reducing high temperatures and wear caused by friction, thus extending the service life of the cable.

[0028] like Figure 2 , Figure 3 As shown, the quick-release assembly includes a locking rod 7 slidably installed inside the quick-release housing 6. The quick-release housing 6 has an installation cavity 11, in which two locking balls 16 are disposed. A locking pin 18 is fixedly installed at the end of the locking rod 7 away from the quick-release housing 6. The locking pin 18 has symmetrically formed grooves 20, which are adapted to the locking balls 16. A locking groove 17 is formed in the connecting seat 4, which is adapted to the locking balls 16. A through hole 15 is symmetrically formed on the side of the quick-release housing 6 near the connecting seat 4, which is adapted to the locking balls 16. A sliding plate 12 is fixedly installed on the side of the locking rod 7 away from the locking pin 18. A fixing plate 14 is fixedly installed on the side of the installation cavity 11 near the connecting seat 4. A return spring 13 is provided on the outer surface of the locking rod 7. One end of the return spring 13 is fixedly installed on one side of the sliding plate 12, and the other end of the return spring 13 is fixedly installed on one side of the fixing plate 14.

[0029] After the load-bearing component is installed in the predetermined position, the operator needs to press the locking rod 7 inward. At this time, the return spring 13 will be compressed and store elastic potential energy, accumulating force for the subsequent return action of the locking rod 7. As the locking rod 7 moves smoothly, the locking pin 18 at its end moves accordingly. The groove 20 on the locking pin 18 gradually aligns with the locking ball 16 in the mounting cavity 11, creating conditions for the further movement and positioning of the locking ball 16. Next, the operator needs to push the quick-release housing 6 towards the connecting seat 4 until the locking ball 16 on the quick-release housing 6 approaches the locking groove 17 inside the connecting seat 4. During this process, the locking ball 16, under the action of the pushing force from the quick-release housing 6, partially enters the mounting cavity 11 and forms a locking state with the groove 20 on the locking pin 18. When the quick-release housing 6 can no longer be pushed forward, it indicates that the quick-release housing 6 is in a locked state. Once the predetermined installation position has been reached, the operator releases the pressure on the locking rod 7. The return spring 13 then releases its previously stored elastic potential energy, pushing the locking rod 7 to quickly and smoothly return to its initial state. The locking rod 7 further compresses the locking ball 16 through its end locking pin 18, causing the locking ball 16 to be squeezed out under the action of the return spring 13 until it engages with the locking groove 17 inside the connecting seat 4. At this point, the load-bearing component has achieved rapid and stable installation and fixation. Unlocking only requires pressing the locking rod 7 and then removing the quick-release housing 6. The entire locking process of the quick-release component is simple to operate and smooth, which not only greatly improves installation efficiency but also ensures that the load-bearing component has extremely high stability and reliability after installation, providing a solid guarantee for the safe and stable operation of the entire overhead insulated cable system.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An aerial insulated electrical cable, characterized in that, include: Load-bearing cable (1) and inner core (2); A load-bearing component is disposed between the load-bearing cable (1) and the inner core (2), and the load-bearing component is used to support the inner core (2). A quick-assembly assembly is installed on one side of the load-bearing component and is used to assemble the load-bearing component.

2. An overhead power cable according to claim 1, characterised in that The load-bearing component includes a first contact sleeve (8) and a second contact sleeve (10) disposed on the outer circumference of the load-bearing cable (1). Connecting seats (4) are symmetrically installed on both sides of the first contact sleeve (8), and quick-release shells (6) are symmetrically installed on both sides of the second contact sleeve (10). A connecting arm (5) is fixedly installed on one side of the connecting seat (4), and a connecting sleeve (3) is fixedly installed on the side of the connecting arm (5) away from the connecting seat (4). The inner core (2) is disposed inside the connecting sleeve (3).

3. An overhead power cable according to claim 2, characterised in that The first contact sleeve (8) and the second contact sleeve (10) are provided with a plurality of mounting grooves (19), and the mounting grooves (19) are filled with graphite.

4. An overhead power cable according to claim 3, characterised in that Both the first contact sleeve (8) and the second contact sleeve (10) are components made of polytetrafluoroethylene.

5. The overhead power cable of claim 3, wherein, The quick-release assembly includes a locking rod (7) that is slidably installed inside the quick-release housing (6). The quick-release housing (6) has an installation cavity (11) inside, and two locking beads (16) are provided in the installation cavity (11). A locking post (18) is fixedly installed at one end of the locking rod (7) away from the quick-release housing (6). The locking post (18) has symmetrical grooves (20) that are adapted to the locking beads (16). A locking groove (17) is provided in the connecting seat (4) that is adapted to the locking beads (16).

6. The overhead power cable of claim 5, wherein, The quick-release housing (6) has symmetrical through holes (15) on one side near the connecting seat (4), and the through holes (15) are adapted to the locking bead (16).

7. An overhead power cable according to claim 6, characterised in that A sliding plate (12) is fixedly installed on the side of the locking rod (7) away from the locking post (18). A fixing plate (14) is fixedly installed on the side of the mounting cavity (11) near the connecting seat (4). A return spring (13) is provided on the outer surface of the locking rod (7). One end of the return spring (13) is fixedly installed on one side of the sliding plate (12), and the other side of the return spring (13) is fixedly installed on one side of the fixing plate (14).

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