Cable storage device and power transmission system

Abstract

The utility model provides a kind of cable storage device and power transmission system, it includes: pedestal part;Multiple elastic winding parts are arranged at intervals along the circumference of pedestal part, each elastic winding part has oppositely arranged connecting end and winding end, each connecting end is connected with pedestal part, and multiple winding ends are annularly arranged at the outer periphery of pedestal part along the circumference of pedestal part for cable winding;Wherein, when each elastic winding part is not subjected to external force, the connecting end to winding end of each elastic winding part Line is obliquely arranged relative to the line between winding end and the central axis of pedestal part;When each elastic winding part is subjected to external force, at least part of each elastic winding part between connecting end and winding end is deformable, to adjust the spacing between winding end and connecting end.The present scheme can make the optical cable adapt to the expansion and contraction of power cable, reduce the damage to the optical cable due to the excessive difference between the sag of power cable and optical cable, and improve the service life of the optical cable.

Description

Technical Field

[0001] This utility model relates to the field of power transmission system technology, and more specifically, to a cable storage device and a power transmission system. Background Technology

[0002] As the cornerstone of modern communication networks, optical fiber cables have been widely and deeply applied in power, communications, and many other fields due to their significant advantages such as high bandwidth, low loss, and anti-interference capabilities. With the continuous expansion of optical fiber network coverage, especially the widespread laying of long-distance overhead communication lines, the mechanical properties and environmental adaptability of optical fibers themselves have become key factors in ensuring stable network operation and information transmission quality.

[0003] In existing technologies, thinner optical cables can be wound around existing power cables. This eliminates the need for re-laying cables and avoids increasing the load on existing poles and towers. However, due to the difference in thermal expansion coefficients between optical cables and power cables—power cables are typically made of metallic materials with a relatively high thermal expansion coefficient that allows them to respond quickly to temperature changes; while optical cables are mainly composed of non-metallic materials such as fibers and plastics, with a lower thermal expansion coefficient and a slower response to temperature changes—these technologies present challenges.

[0004] During the day or in high-temperature environments, power cables experience significant sag due to thermal expansion, while optical cables respond relatively slowly. This results in excessive tension on the optical cable, potentially damaging its structure and affecting the communication performance of its internal optical fibers. Conversely, at night or in low-temperature conditions, the contraction of power cables reduces their sag. In these situations, the slower contraction of the optical cable leads to relative looseness and friction between the optical and power cables, which may also damage the optical cable's structure and affect the communication performance of its internal optical fibers. Utility Model Content

[0005] The main purpose of this utility model is to provide a cable storage device and a power transmission system, so that the optical cable can adapt to the expansion and contraction of the power cable, reduce the damage to the optical cable due to the excessive sag difference between the power cable and the optical cable, and improve the service life of the optical cable.

[0006] To achieve the above objectives, this utility model provides a cable storage device, comprising: a base portion; and a plurality of elastic winding portions arranged at intervals along the circumference of the base portion. Each elastic winding portion has a connecting end and a winding end disposed opposite to each other. Each connecting end is connected to the base portion, and the plurality of winding ends are arranged in a ring around the outer periphery of the base portion for cable winding. When each elastic winding portion is not subjected to external force, the line connecting the connecting end to the winding end of each elastic winding portion is inclined relative to the line connecting the winding end and the central axis of the base portion. When each elastic winding portion is subjected to external force, at least a portion of each elastic winding portion located between the connecting end and the winding end is deformable to adjust the distance between the winding end and the connecting end.

[0007] Furthermore, each elastic winding portion includes a winding segment and at least one deformable segment. The winding segment forms a winding end, and each deformable segment is located on the same side of the winding segment. Each deformable segment and the winding segment have an included angle. One end of each deformable segment is connected to the winding segment, and the end of each deformable segment away from the winding segment forms a connecting end. Under the action of external force, at least a portion of each deformable segment can be bent.

[0008] Furthermore, each elastic winding section includes multiple deformation segments, which are spaced apart along the extension direction of the corresponding winding segment. The multiple deformation segments of each elastic winding section are arranged in parallel, and their extension lines are all inclined relative to the line connecting the winding end and the central axis of the base section. Alternatively, each of the two ends of the extension direction of the winding segment of each elastic winding section is connected to a deformation segment, and each of the two ends of the extension direction of the winding segment and the corresponding deformation segment has a stop protrusion. The two stop protrusions and the winding segment form a receiving groove for accommodating the cable.

[0009] Furthermore, each stop protrusion includes a first stop segment and a second stop segment connected to each other, with an included angle between the first stop segment and the second stop segment, and an included angle between the end of the first stop segment away from the second stop segment and the end of the corresponding deformable segment away from the connecting end, and they are connected to each other; the end of the second stop segment away from the first stop segment and the corresponding end of the winding segment are connected to each other; or, the connecting ends of multiple elastic winding portions are evenly arranged along the circumference of the base portion, and the connection point of the connecting end of each elastic winding portion and the base portion is located on the same circle.

[0010] Furthermore, each elastic winding portion has a connection point between its connecting end and the base portion. When each elastic winding portion is not subjected to external force, the line connecting each connection point to the axis of the base portion and the line connecting the connecting end to the winding end of the corresponding elastic winding portion have an included angle A, 80°≤A≤100°; and / or, when each elastic winding portion is not subjected to external force, in two adjacent elastic winding portions, the extension of the line connecting the winding end to the connecting end of one elastic winding portion and the extension of the line connecting the connecting end to the winding end of the other elastic winding portion have an intersection point Q. The line connecting the intersection point Q to the winding end of one elastic winding portion and the line connecting the intersection point Q to the winding end of the other elastic winding portion have an included angle B, where B is an acute angle.

[0011] Furthermore, the connecting end is inserted into the base part, and the base part is also provided with multiple limiting parts. The limiting parts are correspondingly provided with the deformation section of the elastic winding part. The limiting parts are limited and engaged with the end of the deformation section near the connecting end to restrict the deformation of the end of the deformation section near the connecting end.

[0012] Furthermore, along the direction from the connecting end to the winding end, the length of the elastic winding portion is L0, and the length of the elastic winding portion protruding from the limiting portion is L1. And / or, the limiting part is a limiting groove, the extending direction of the limiting groove is the same as the extending direction of the corresponding deformation segment, the end of the deformation segment near the connecting end is located in the limiting groove, and the limiting groove restricts the deformation of the end of the deformation segment near the connecting end.

[0013] Furthermore, the cable storage device also includes: an installation component, comprising a first clamping part, a second clamping part, and a fastening part, wherein the first clamping part and the second clamping part are hinged together, and after the first clamping part and the second clamping part are fastened together, an installation hole is formed for installing the foundation to be installed; the fastening part is disposed on the side of the first clamping part and the second clamping part away from the hinge axis, and the first clamping part and the second clamping part are locked together by the fastening part; and a base part is disposed on the first clamping part or the second clamping part.

[0014] Furthermore, at least one of the first clamping part and the second clamping part has at least one groove on its inner sidewall, the groove extends along the axial direction of the mounting hole, and both ends of the groove extension direction are open structures; and / or, the axial direction of the mounting hole is perpendicular to the axial direction of the base part.

[0015] According to another aspect of the present invention, the present invention provides a power transmission system comprising a plurality of poles; power cables, which are sequentially erected on the plurality of poles along the distribution direction of the plurality of poles; at least one of the aforementioned cable storage devices, the base of each cable storage device being disposed on the power cable; and a communication optical cable, which is wound around the power cable along the extension direction of the power cable, and the communication optical cable near the cable storage device is wound around the cable storage component of the cable storage device.

[0016] Furthermore, the pole includes a straight-line pole and a first insulator string installed on the straight-line pole. The first insulator string extends along the axial direction of the straight-line pole, and the power cable is connected to the first insulator string. At least one side of the connection point between the power cable and the first insulator string is provided with a cable storage device; or, the pole includes a tension pole and two second insulator strings installed on the tension pole. Each second insulator string extends along a direction perpendicular to the axial direction of the tension pole, and the two second insulator strings are symmetrically distributed on both sides of the tension pole; the power cable includes a main body section and a jumper section. The two ends of the jumper section are respectively connected to the main body section, and the two ends of the jumper section are respectively connected to the main body section. The jumper segment is connected to the main body segment at a point where it is connected to the end of the corresponding second insulator string furthest from the tension tower. A cable storage device is provided at a point on the main body segment near the second insulator string. Alternatively, the tower includes a down-leading tower, and the power transmission system also includes a down-leading transition fitting. The down-leading transition fitting is installed on the power cable, and the end of the communication optical cable is connected to the down-leading transition fitting. The end of the communication optical cable is led down through the down-leading transition fitting. A cable storage device is provided on one side of the connection point between the communication optical cable and the down-leading transition fitting, and the cable storage device is located on the side of the down-leading transition fitting furthest from the down-leading tower.

[0017] By applying the technical solution of this utility model, at least a portion of each elastic winding part located between the connecting end and the winding end can deform under the action of external force. When the tension of the cable wound on the winding ends of multiple elastic winding parts changes due to external conditions, the force is transmitted to the elastic winding part, and the distance between the winding end and the connecting end changes, thereby causing the outer diameter of the winding disc formed by multiple winding ends to change accordingly, reducing the situation where the sag of the cable is too large or too small.

[0018] Especially when cables are intertwined with other cables, such as when communication optical cables and power cables are intertwined, when the temperature rises, the power cable, which has a higher coefficient of thermal expansion, expands to a greater extent than the communication optical cable, which has a lower coefficient of thermal expansion. The sag of the power cable increases more significantly, which increases the tension of the communication optical cable and may cause it to be overstretched. Conversely, when the temperature drops, the communication optical cable contracts relatively slowly, causing it to become looser relative to the power cable, which may cause friction or structural damage to the communication optical cable. Part of the communication optical cable is wound around the winding ends of multiple elastic winding sections. When the tension of the communication optical cable increases excessively, the distance between the winding ends of each elastic winding section and the connection end decreases under the tension of the communication optical cable, and the outer diameter of the winding disc formed by the multiple winding ends decreases, so as to release part of the communication optical cable wound around the multiple winding ends and reduce the possibility of damage to the communication optical cable caused by excessive tightness. When the tension of the communication optical cable decreases, the communication optical cable becomes loose, the distance between the winding ends of each elastic winding section and the connection end increases, and the outer diameter of the winding disc formed by the multiple winding ends increases, so that part of the suspended communication optical cable is wound around the multiple winding ends. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the cable storage device provided by the present invention when the elastic winding part is not subjected to external force, from a first-view perspective.

[0021] Figure 2 This is a schematic diagram of the cable storage device provided by the present invention when the elastic winding part is not subjected to external force, from a second perspective.

[0022] Figure 3 This invention provides a schematic diagram of the cable storage device when the elastic winding section is subjected to external force.

[0023] Figure 4 A schematic diagram of the structure of the elastic winding part provided by this utility model is shown;

[0024] Figure 5 This shows a first partial structural schematic diagram of the cable storage device provided by this utility model;

[0025] Figure 6 This shows a second partial structural schematic diagram of the cable storage device provided by this utility model;

[0026] Figure 7 This invention provides a first-view structural schematic diagram of the mounting component.

[0027] Figure 8 This invention provides a second-view structural schematic diagram of the mounting component.

[0028] Figure 9 A partial structural schematic diagram of the power transmission system provided in Embodiment 2 of this utility model is shown;

[0029] Figure 10 A partial structural schematic diagram of the power transmission system provided in Embodiment 3 of this utility model is shown;

[0030] Figure 11 A partial structural schematic diagram of the power transmission system provided in Embodiment 4 of this utility model is shown;

[0031] Figure 12 A partial structural schematic diagram of the power transmission system provided in Embodiment 5 of this utility model is shown;

[0032] Figure 13A partial structural schematic diagram of the power transmission system provided in Embodiment Six of this utility model is shown.

[0033] The above figures include the following reference numerals:

[0034] 10. Base; 11. Spindle; 12. End plate; 121. Insertion hole; 122. Protrusion; 13. Fixed shaft;

[0035] 20. Flexible winding section; 201. Connecting end; 202. Winding end;

[0036] 21. Winding segment; 22. Deformation segment; 221. Insertion shaft; 23. Stop protrusion; 231. First stop segment; 232. Second stop segment;

[0037] 30. Limiting part;

[0038] 40. Mounting component; 401. Mounting hole; 402. Groove;

[0039] 41. First clamping part; 42. Second clamping part; 43. Fastening part;

[0040] 50. Power cables; 51. Main body section; 52. Jumper section; 60. Communication optical cables;

[0041] 71. Straight-line tower; 72. First insulator string;

[0042] 81. Tension tower; 82. Second insulator string; 83. Third insulator string;

[0043] 91. Lower the tower; 92. Lower the transition fittings. Detailed Implementation

[0044] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0045] like Figures 1 to 6As shown, this utility model embodiment provides a cable storage device, which includes a base portion 10 and a plurality of elastic winding portions 20. The plurality of elastic winding portions 20 are arranged circumferentially around the base portion 10. Each elastic winding portion 20 has a connecting end 201 and a winding end 202 disposed opposite to each other. Each connecting end 201 is connected to the base portion 10. The plurality of winding ends 202 are arranged in a ring around the outer periphery of the base portion 10 for cable winding. When each elastic winding portion 20 is not subjected to external force, the line connecting the connecting end 201 to the winding end 202 of each elastic winding portion 20 is inclined relative to the line connecting the winding end 202 and the central axis of the base portion 10. When each elastic winding portion 20 is subjected to external force, at least a portion of each elastic winding portion 20 located between the connecting end 201 and the winding end 202 is deformable to adjust the distance between the winding end 202 and the connecting end 201, thereby adjusting the outer diameter of the winding disc formed by the plurality of winding ends 202.

[0046] It is understandable that the distance between the winding end 202 and the connecting end 201 is the distance along the radial direction of the base portion 10.

[0047] By applying the technical solution of this utility model, at least a portion of each elastic winding portion 20 located between the connecting end 201 and the winding end 202 can deform under the action of external force. When the tension of the cable wound on the winding end 202 of the multiple elastic winding portions 20 changes due to external conditions, the force is transmitted to the elastic winding portion 20, and the distance between the winding end 202 and the connecting end 201 changes, thereby causing the outer diameter of the winding disc formed by the multiple winding ends 202 to change accordingly, reducing the situation where the sag of the cable is too large or too small.

[0048] like Figure 3As shown, especially when cables are intertwined with other cables, such as when communication optical cable 60 and power cable 50 are intertwined, when the temperature rises, the expansion of power cable 50, which has a higher coefficient of thermal expansion, is greater than that of communication optical cable 60, which has a lower coefficient of thermal expansion. The sag of power cable 50 increases significantly, which increases the tension of communication optical cable 60 and may cause it to be overstretched. Conversely, when the temperature drops, the contraction of communication optical cable 60 is relatively slow, causing communication optical cable 60 to become looser relative to power cable 50, which may cause friction or structural damage to communication optical cable 60. Part of the communication optical cable 60 is wound around the winding ends 202 of multiple elastic winding sections 20. When the tension of the communication optical cable 60 increases excessively, under the action of the tension of the communication optical cable 60, the distance between the winding ends 202 of each elastic winding section 20 and the connecting end 201 becomes smaller, and the outer diameter of the winding disc formed by the multiple winding ends 202 decreases, so as to release part of the communication optical cable 60 wound on the multiple winding ends 202 and reduce the situation where the communication optical cable 60 is damaged due to being too tight. When the tension of the communication optical cable 60 decreases, the communication optical cable 60 becomes loose, the distance between the winding ends 202 of each elastic winding section 20 and the connecting end 201 increases, and the outer diameter of the winding disc formed by the multiple winding ends 202 increases, so that part of the suspended communication optical cable 60 is wound on the multiple winding ends 202.

[0049] When each elastic winding portion 20 is not subjected to external force, the line connecting the connecting end 201 to the winding end 202 of each elastic winding portion 20 is inclined relative to the line connecting the winding end 202 and the central axis of the base portion 10. This arrangement facilitates the deformation of the portion of each elastic winding portion 20 located between the connecting end 201 and the winding end 202 under the action of external force.

[0050] like Figures 1 to 4 As shown in the embodiment of this solution, each elastic winding portion 20 includes a winding segment 21 and at least one deformable segment 22. The winding segment 21 forms a winding end 202. Each deformable segment 22 is located on the same side of the winding segment 21, and there is an angle between each deformable segment 22 and the winding segment 21. One end of each deformable segment 22 is connected to the winding segment 21, and the end of each deformable segment 22 away from the winding segment 21 forms a connecting end 201. Under the action of external force, at least a portion of each deformable segment 22 can be bent. The above arrangement allows at least a portion of each deformable segment 22 to bend under the action of external force (i.e., the tension of the communication optical cable 60) to change the distance between the winding end 202 and the connecting end 201, and to make the outer diameter of the winding disc adapt to the change of the tension of the communication optical cable 60. It can be understood that the above arrangement enables there to be a gap between each winding segment 21 and the peripheral surface of the base portion 10, providing deformable space for the deformable segment 22.

[0051] In this embodiment, the extension direction of each winding segment 21 is parallel to the axial direction of the base portion 10. This arrangement makes the winding disc formed by the multiple winding segments 21 more regular, and makes the communication optical cable 60 more evenly and regularly wound.

[0052] Furthermore, each elastic winding section 20 includes multiple deformation segments 22, which are spaced apart along the extension direction of the corresponding winding segment 21. The multiple deformation segments 22 of each elastic winding section 20 are arranged in parallel, and their extension lines are all inclined relative to the line connecting the winding end 202 and the central axis of the base section 10. This arrangement can more evenly distribute the external force caused by the change in cable tension, avoiding excessive local stress accumulation on the elastic winding section 20. In addition, since the multiple deformation segments 22 in each elastic winding section 20 are arranged in parallel, the multiple deformation segments 22 in each elastic winding section will maintain a consistent tilt angle and deformation path during deformation, increasing the stability of the entire device.

[0053] In this embodiment, each elastic winding section 20 has a deformation section 22 connected to each end of the winding segment 21 extending in the direction of its two ends. Each end of the winding segment 21 extending in the direction of its two ends and the corresponding deformation section 22 has a stop protrusion 23. The two stop protrusions 23 and the winding segment 21 form a receiving groove for accommodating the cable. That is, the setting of the two stop protrusions 23 can reduce or prevent the cable from coming out of the receiving groove.

[0054] In this embodiment, the two deformation segments 22 connected to the two ends of the winding segment 21 in the extension direction are both rod-shaped structures, and both deformation segments 22 are perpendicular to the axial direction of the base portion 10. The winding segment 21 is also a rod-shaped structure.

[0055] Specifically, each stop protrusion 23 includes a first stop segment 231 and a second stop segment 232 connected to each other. The first stop segment 231 and the second stop segment 232 form an angle between each other. The end of the first stop segment 231 away from the second stop segment 232 forms an angle with the end of the corresponding deformable segment 22 away from the connecting end 201 and are connected to each other. The end of the second stop segment 232 away from the first stop segment 231 forms an angle with the corresponding end of the winding segment 21 and are connected to each other. This arrangement facilitates the formation of the stop protrusion 23.

[0056] Furthermore, the first stop segment 231 and the second stop segment 232 are approximately perpendicular, the first stop segment 231 is approximately perpendicular to the deformation segment 22, and the second stop segment 232 is approximately perpendicular to the winding segment 21.

[0057] In this embodiment, the elastic winding portion 20 is an integrated structure. Each elastic winding portion 20 is made of steel wire, which improves the deformation and resilience of each elastic winding portion 20.

[0058] Furthermore, the connecting ends 201 of the multiple elastic winding portions 20 are evenly arranged along the circumference of the base portion 10, and the connection points of the connecting ends 201 of each elastic winding portion 20 and the base portion 10 are located on the same circle. This arrangement allows the force applied by the communication optical cable 60 to the multiple elastic winding portions 20 to be distributed more evenly, reduces stress concentration, and improves the synchronicity of the deformation of the multiple elastic winding portions 20.

[0059] like Figure 5 As shown in the embodiment of this solution, each elastic winding portion 20 has a connection point between its connecting end 201 and the base portion 10. When each elastic winding portion 20 is not subjected to external force, the line connecting each connection point to the axis of the base portion 10, and the line connecting the connecting end 201 to the winding end 202 of the corresponding elastic winding portion 20, have an included angle A, where 80°≤A≤100°. This arrangement allows the elastic winding portion 20 to achieve better elastic deformation and ensures that the elastic winding portion 20 has a better diameter variation range.

[0060] A can be set to 80°, 90°, or 100, etc.

[0061] Specifically, when each elastic winding portion 20 is not subjected to external force, in two adjacent elastic winding portions 20, the extension line of the line connecting one elastic winding portion 20 from the winding end 202 to the connecting end 201 intersects with the extension line of the line connecting the connecting end 201 to the winding end 202 of the other elastic winding portion 20 at point Q. An angle B, where B is an acute angle, is formed between point Q and the line connecting one elastic winding portion 20's winding end 202, and between point Q and the line connecting the other elastic winding portion 20's winding end 202. This arrangement ensures that when the tension of the communication optical cable 60 changes, the multiple elastic winding portions 200 can deform synchronously, meaning that the winding ends 202 of the multiple elastic winding portions 20 can tilt synchronously in the same direction. Furthermore, this arrangement ensures that a sufficient number of elastic winding portions 20 bear the force of the communication optical cable 60, improving the stability of the device.

[0062] Furthermore, the connecting end 201 is inserted into the base portion 10. The base portion 10 is also provided with multiple limiting portions 30, which are correspondingly arranged with the deformable segments 22 of the elastic winding portion 20. The limiting portions 30 are engaged with the end of the deformable segment 22 near the connecting end 201 to limit deformation at that end. This arrangement facilitates the assembly of the elastic winding portion 20 and the base portion 10.

[0063] Furthermore, the limiting part 30 restricts the deformation of the deformation section 22 near the connection end 201, so that the deformation of the elastic winding part 20 is more concentrated at the end of the deformation section 22 near the winding section 21, which can respond to the tension change of the communication optical cable 60 more quickly.

[0064] like Figure 4 and Figure 5 As shown, specifically, along the direction from the connecting end 201 to the winding end 202, the length of the elastic winding portion 20 is L0, and the length of the elastic winding portion 20 protruding from the limiting portion 30 is L1. If the length of the elastic winding portion 20 protruding from the limiting portion 30 is too long, stress concentration may occur at the winding end 202 of the elastic winding portion 20, reducing the structural stability and reliability of the elastic winding portion 20. If the length of the elastic winding portion 20 protruding from the limiting portion 30 is too short, the deformation degree of the deformation section 22 will be small, and its ability to adjust the tension of the optical cable will be affected. In summary, this solution will... The value is set within the range mentioned above.

[0065] In the embodiments of this application, L1 and L0 are both measured values ​​when the elastic winding portion 20 is not subjected to external force. L0 refers to the distance between the axis of the first stop section 231 and the axis of the insertion shaft 221; L1 refers to the distance between the outer peripheral surface of the end plate 12 and the axis of the first stop section 231 along the length direction of the deformation section 22.

[0066] in, Specifically, it can be set to 0.75, 0.8, or 0.85, etc.

[0067] like Figures 1 to 4 As shown in the embodiment of this solution, the base portion 10 includes a coaxially arranged main shaft 11 and two end plates 12, which are respectively disposed at both ends of the main shaft 11 along its axial direction. The ends of the two deformation segments 22 of each elastic winding portion 20 that are away from the winding segment 21 are respectively inserted into the two end plates 12.

[0068] Specifically, the end of each deformable segment 22 furthest from the winding segment 21 is bent to form a connecting shaft 221. Each end plate 12 is provided with multiple connecting holes 121, which are spaced apart circumferentially along the end plate 12, and the connecting holes 121 correspond to the connecting shafts 221. Each connecting hole 121 contains one connecting shaft 221; that is, two connecting shafts 221 of the same elastic winding portion 20 are respectively inserted into two oppositely positioned connecting holes 121 on the two end plates 12.

[0069] Furthermore, each end plate 12 is provided with multiple limiting grooves, which are corresponding to the winding segments 21. The end of each winding segment 21 near the insertion shaft 221 is provided in the corresponding limiting groove, and the limiting groove restricts the deformation of the end of the corresponding deformation segment 22 near the connection end 201.

[0070] Specifically, each end plate 12 has multiple protrusions 122 on its outer side wall, and the multiple protrusions 122 are distributed at intervals along the circumference of the end plate, with a limiting groove formed between two adjacent protrusions 122.

[0071] like Figure 1 , Figure 3 , Figure 7 and Figure 8 As shown, the cable storage device also includes a mounting component 40, which includes a first clamping part 41, a second clamping part 42, and a fastening part 43. The first clamping part 41 and the second clamping part 42 are hinged together, and after the first clamping part 41 and the second clamping part 42 are engaged, they form a mounting hole 401 for mounting the foundation to be installed. The fastening part 43 is located on the side of the first clamping part 41 and the second clamping part 42 away from the hinge axis, and the first clamping part 41 and the second clamping part 42 are locked together by the fastening part 43. The base part 10 is disposed on the first clamping part 41 or the second clamping part 42. This arrangement allows the mounting component 40 to be installed on the power cable 50, facilitating the assembly of the mounting component 40 and the power cable 50.

[0072] At least one of the first clamping part 41 and the second clamping part 42 has at least one groove 402 on its inner sidewall. The groove 402 extends along the axial direction of the mounting hole 401, and both ends of the groove 402 are open structures. This arrangement allows the groove 402 to accommodate the communication optical cable 60, reducing the squeezing deformation caused to the communication optical cable 60. At the same time, the groove 402 increases the friction between the first clamping part 41 and the second clamping part 42 and the power cable 50, improving the stability of the clamping.

[0073] In this embodiment of the solution, multiple grooves 402 are provided on the inner sidewalls of the first clamping part 41 and the second clamping part 42.

[0074] Furthermore, the axial direction of the mounting hole 401 is perpendicular to the axial direction of the base portion 10. This arrangement facilitates the winding of the communication optical cable 60 onto the flexible winding portion 20 after the base portion 10 is mounted onto the power cable 50.

[0075] like Figure 1 , Figure 3 and Figure 9As shown, Embodiment 2 of this utility model provides a power transmission system, which includes multiple poles, power cables 50, at least one cable storage device as described in Embodiment 1, and a communication optical cable 60. The power cables 50 are sequentially erected on the multiple poles along their distribution direction; the base 10 of each cable storage device is disposed on the power cable 50; the communication optical cable 60 is wound around the power cable 50 along its extension direction, and the communication optical cable 60 near the cable storage device is wound around the cable storage component of the cable storage device.

[0076] Specifically, the mounting component 40 of the cable storage device is mounted on the power cable 50 so that the base part 10 is mounted on the power cable 50.

[0077] Furthermore, the pole includes a straight pole 71 and a first insulator string 72 disposed on the straight pole 71. The first insulator string 72 extends along the axial direction of the straight pole 71. The power cable 50 is connected to the first insulator string 72. This part is prior art and will not be described in detail here.

[0078] Furthermore, a cable storage device is provided on at least one side of the connection position between the power cable 50 and the first insulator string 72.

[0079] In this embodiment of the solution, a cable storage device is provided on both sides of the connection position between the power cable 50 and the first insulator string 72. This arrangement facilitates the connection of various components by the operators.

[0080] like Figure 1 , Figure 3 and Figure 10 As shown, Embodiment 3 of this utility model provides a power transmission system. The difference from Embodiment 2 is that the tower includes a tension tower 81 and two second insulator strings 82 mounted on the tension tower 81. Each second insulator string 82 extends along a direction perpendicular to the axis of the tension tower 81, and the two second insulator strings 82 are symmetrically distributed on both sides of the tension tower 81. The power cable 50 includes a main body section 51 and a jumper section 52. Both ends of the jumper section 52 are connected to the main body section 51. Each end of the jumper section 52 corresponds to one of the two second insulator strings 82. The connection point between the jumper section 52 and the main body section 51 is connected to the end of the corresponding second insulator string 82 furthest from the tension tower 81. A cable storage device is provided at the position of the main body section 51 near the second insulator string 82. This arrangement facilitates the connection of various components by the operator.

[0081] Furthermore, the power transmission system also includes a third insulator string 83, which is mounted on the tension tower 81 and located below the plane containing the two second insulator strings 82. The middle section of the jumper segment 52 is connected to the third insulator string 83. This part is prior art and will not be described in detail here.

[0082] like Figure 1 , Figure 3 and Figure 11 As shown, Embodiment 4 of this utility model provides a power transmission system, which differs from Embodiment 3 in that the third insulator string 83 is located above the plane where the two second insulator strings 82 are located.

[0083] like Figure 1 , Figure 3 and Figure 12 As shown, Embodiment 5 of this utility model provides a power transmission system. The difference from Embodiment 2 is that the pole includes a down-leading pole 91, and the power transmission system also includes a down-leading transition fitting 92. The down-leading transition fitting 92 is installed on the power cable 50, and the end of the communication optical cable 60 is connected to the down-leading transition fitting 92. The end of the communication optical cable 60 is led down through the down-leading transition fitting 92. This part is prior art and will not be described in detail here.

[0084] Furthermore, this down-leading tower 91 is an end down-leading tower 91, that is, one side of the down-leading tower 91 has a power cable 50, and the other side does not have a power cable 50. A cable storage device is provided on one side of the connection position between the communication optical cable 60 and the down-leading transition hardware 92, and the cable storage device is located on the side of the down-leading transition hardware 92 away from the down-leading tower 91.

[0085] like Figure 1 , Figure 3 and Figure 13 As shown, Embodiment Six of this utility model provides a power transmission system. The difference from Embodiment Five is that the down-leading tower 91 is a central down-leading tower 91, meaning that power cables 50 and down-leading transition fittings are located on both sides of the down-leading tower 91. The communication optical cable 60, wrapped around the power cable 50, is cut at the position of the down-leading tower 91, and both resulting ends are led down. This part is prior art and will not be described in detail here.

[0086] It is understandable that there are two cable storage devices and two down-lead transition fittings 92, with the two cable storage devices located on opposite sides of the two down-lead transition fittings 92.

[0087] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0088] 1. When the tension of the communication optical cable 60 increases or decreases due to changes in external temperature, the elastic winding part 20 can automatically adjust its shape and change the distance between the winding end 202 and the connecting end 201, thereby dynamically adjusting the outer diameter of the winding disc formed by multiple elastic winding parts 20. This alleviates the problem of excessive tension or slack in the communication optical cable 60 caused by the difference in thermal expansion coefficients between the communication optical cable 60 and the power cable 50, which affects the service life of the communication optical cable 60.

[0089] 2. The cable storage device, by setting the stop protrusion 23 and the receiving groove, can ensure the safe winding of the communication optical cable 60 on the elastic winding part 20, reducing the risk of the optical cable coming off due to external factors (such as wind and vibration). At the same time, by limiting part of the deformation of the deformation section 22, the deformation is concentrated in a more controllable area, thereby more effectively dispersing and regulating the tension of the optical cable, avoiding damage to the communication optical cable 60 caused by local excessive stress;

[0090] 3. By designing and installing component 40, the cable storage device can be quickly installed and securely fixed on the power cable 50, which facilitates the operation of on-site personnel.

[0091] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any 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. A cable storage device, characterized in that, include: Base (10); Multiple elastic winding portions (20) are arranged at intervals along the circumference of the base portion (10). Each elastic winding portion (20) has a connecting end (201) and a winding end (202) arranged opposite to each other. Each connecting end (201) is connected to the base portion (10). The multiple winding ends (202) are arranged in a ring around the outer periphery of the base portion (10) for winding cables. When each of the elastic winding portions (20) is not subjected to external force, the line connecting the connecting end (201) to the winding end (202) of each elastic winding portion (20) is inclined relative to the line connecting the winding end (202) and the central axis of the base portion (10); when each of the elastic winding portions (20) is subjected to external force, at least a portion of each elastic winding portion (20) located between the connecting end (201) and the winding end (202) is deformable to adjust the distance between the winding end (202) and the connecting end (201).

2. The cable storage device according to claim 1, characterized in that, Each of the elastic winding portions (20) includes a winding segment (21) and at least one deformable segment (22). The winding segment (21) forms the winding end (202). Each of the deformable segments (22) is located on the same side of the winding segment (21). Each of the deformable segments (22) has an angle with the winding segment (21). One end of each deformable segment (22) is connected to the winding segment (21). The end of each deformable segment (22) away from the winding segment (21) forms the connecting end (201). Under the action of external force, at least a portion of each deformable segment (22) can be bent.

3. The cable storage device according to claim 2, characterized in that, Each of the elastic winding portions (20) includes a plurality of deformation segments (22), which are spaced apart along the extension direction of the corresponding winding segment (21). The plurality of deformation segments (22) of each elastic winding portion (20) are arranged in parallel and their extension lines are all inclined relative to the line connecting the central axis of the winding end (202) and the base portion (10); or, Each of the elastic winding portions (20) has a deformation segment (22) connected to each end of the winding segment (21) in the extension direction. Each end of the winding segment (21) in the extension direction and the corresponding deformation segment (22) have a stop protrusion (23). The two stop protrusions (23) and the winding segment (21) form a receiving groove for accommodating the cable.

4. The cable storage device according to claim 3, characterized in that, Each of the aforementioned stop protrusions (23) includes a first stop segment (231) and a second stop segment (232) connected to each other. The first stop segment (231) and the second stop segment (232) form an angle. The end of the first stop segment (231) away from the second stop segment (232) forms an angle with the end of the corresponding deformable segment (22) away from the connecting end (201) and are connected to each other. The end of the second stop segment (232) away from the first stop segment (231) forms an angle with the corresponding end of the winding segment (21) and are connected to each other. Alternatively, The connecting ends (201) of the plurality of elastic winding portions (20) are evenly arranged along the circumference of the base portion (10), and the connecting end (201) of each elastic winding portion (20) and the connection point of the base portion (10) are located on the same circle.

5. The cable storage device according to any one of claims 1 to 4, characterized in that, Each of the elastic winding portions (20) has a connection point between its connecting end (201) and the base portion (10). When each of the elastic winding portions (20) is not subjected to external force, the line connecting each connection point to the axis of the base portion (10) and the line connecting the connecting end (201) to the winding end (202) of the corresponding elastic winding portion (20) have an included angle A, 80°≤A≤100°; and / or, When each of the elastic winding portions (20) is not subjected to external force, in two adjacent elastic winding portions (20), the extension line of the line connecting the winding end (202) to the connecting end (201) of one elastic winding portion (20) and the extension line of the line connecting the connecting end (201) to the winding end (202) of the other elastic winding portion (20) have an intersection point Q. The intersection point Q has an included angle B with the line connecting the winding end (202) of one elastic winding portion (20) and the line connecting the intersection point Q with the winding end (202) of the other elastic winding portion (20), where B is an acute angle.

6. The cable storage device according to any one of claims 2 to 4, characterized in that, The connecting end (201) is inserted into the base part (10). The base part (10) is also provided with a plurality of limiting parts (30). The limiting parts (30) are correspondingly provided with the deformation section (22) of the elastic winding part (20). The limiting part (30) is limited to the end of the deformation section (22) near the connecting end (201) to limit the deformation of the end of the deformation section (22) near the connecting end (201).

7. The cable storage device according to claim 6, characterized in that, Along the direction from the connecting end (201) to the winding end (202), the length of the elastic winding portion (20) is L0, and the length of the elastic winding portion (20) protruding from the limiting portion (30) is L1. And / or, The limiting part (30) is a limiting groove. The extending direction of the limiting groove is the same as the extending direction of the corresponding deformation segment (22). The end of the deformation segment (22) near the connecting end (201) is located in the limiting groove. The limiting groove restricts the deformation of the end of the deformation segment (22) near the connecting end (201).

8. The cable storage device according to any one of claims 1 to 4, characterized in that, The cable storage device also includes: The mounting component (40) includes a first clamping part (41), a second clamping part (42), and a fastening part (43). The first clamping part (41) and the second clamping part (42) are hinged together. After the first clamping part (41) and the second clamping part (42) are engaged, they form a mounting hole (401) for mounting the foundation to be installed. The fastening part (43) is disposed on the side of the first clamping part (41) and the second clamping part (42) away from the hinge axis. The first clamping part (41) and the second clamping part (42) are locked together by the fastening part (43). The base part (10) is disposed on the first clamping part (41) or the second clamping part (42).

9. The cable storage device according to claim 8, characterized in that, At least one of the first clamping part (41) and the second clamping part (42) has at least one groove (402) on its inner sidewall. The groove (402) extends along the axial direction of the mounting hole (401), and both ends of the groove (402) are open structures; and / or, The axial direction of the mounting hole (401) is perpendicular to the axial direction of the base portion (10).

10. A power transmission system, characterized in that, include: Multiple towers; Power cables (50) are sequentially erected on the multiple poles along the distribution direction of the multiple poles; At least one cable storage device according to any one of claims 1 to 9, wherein at least one base portion (10) of the cable storage device is disposed on the power cable (50); The communication optical cable (60) is wound around the power cable (50) along the extension direction of the power cable (50), and the communication optical cable (60) near the cable storage device is wound around the cable storage component of the cable storage device.

11. The power transmission system according to claim 10, characterized in that, The pole includes a straight tower (71) and a first insulator string (72) disposed on the straight tower (71). The first insulator string (72) extends along the axial direction of the straight tower (71). The power cable (50) is connected to the first insulator string (72). At least one side of the connection position between the power cable (50) and the first insulator string (72) is provided with a cable storage device; or, The tower includes a tension tower (81) and two second insulator strings (82) installed on the tension tower (81). Each second insulator string (82) extends along a direction perpendicular to the axis of the tension tower (81), and the two second insulator strings (82) are symmetrically distributed on both sides of the tension tower (81). The power cable (50) includes a main body section (51) and a jumper section (52). The two ends of the jumper section (52) are respectively connected to the main body section (51). The two ends of the jumper section (52) are respectively corresponding to the two second insulator strings (82). The connection position of the jumper section (52) with the main body section (51) is connected to the end of the corresponding second insulator string (82) away from the tension tower (81). The cable storage device is provided at the position of the main body section (51) near the second insulator string (82). Alternatively, The pole includes a down-leading pole (91), and the power transmission system also includes a down-leading transition fitting (92). The down-leading transition fitting (92) is installed on the power cable (50). The end of the communication optical cable (60) is connected to the down-leading transition fitting (92), and the end of the communication optical cable (60) is led down through the down-leading transition fitting (92). A cable storage device is provided on one side of the connection position between the communication optical cable (60) and the down-leading transition fitting (92). The cable storage device is located on the side of the down-leading transition fitting (92) away from the down-leading pole (91).

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