Cable limiting protection device

By setting a combined structure of limit ring and limit column on the cable, the cable movement is restricted, and the cable wear problem is solved in the wind turbine set, improving the safety and reliability of the cable.

CN223285512UActive Publication Date: 2025-08-29HUANENG XINJIANG MULEI NEW ENERGY CO LTD
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Patent Information

Application Number
CN202421674962.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-08-29
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

The yaw torsion cable position in the wind turbine unit Due to movement, friction between the cables causes damage to the coating, which poses a risk of cable burning and fire.

Method used

A combined structure of limit ring and limit column is adopted. A limit hole is set in the middle of the cable through the limit ring. The limit column overlaps with the cable to limit the movement of the cable, avoid contact between the cables, and the installation bolts and nuts ensure the stability of the connection. The protective sleeve is used to protect the limit ring and limit column.

Benefits of technology

It effectively avoids damage to cable coating, reduces accidents, and improves safety during cable use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a cable limiting protection device which is installed on a cable and comprises a limiting ring, the limiting ring is arranged in the middle of the cable, the limiting ring is a hollow ring, a plurality of limiting holes are formed in the limiting ring, the limiting holes are evenly formed in a ring body of the limiting ring, and the limiting ring is a hollow ring. The limiting hole penetrates through the limiting ring, so that the inside of the limiting ring is communicated with the outside of the limiting ring; the limiting column is installed on the limiting ring, one end of the limiting column is installed in the limiting hole, and the middle of the limiting column is in lap joint with the cable. According to the utility model, through the arrangement of the limiting columns and the limiting rings, the movement of the cables is limited, the mutual movement between the cables is reduced, and the safety of the cables in the use process is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of cable auxiliary accessories, in particular to a cable limit protection device. Background Art

[0002] Cables are essential electrical devices used to transmit power or signals. They play a vital role in our lives and across various fields. Cables are widely used to transmit electricity from power plants to cities, industrial areas, and residential areas. The reliability and efficiency of cable transmission make power distribution more flexible and controllable.

[0003] The cables used in wind turbines usually use multiple cables to transmit electricity simultaneously. However, the yaw and twist cables in wind turbines are usually subject to wear due to movement. This is because the friction between the cables will damage the cable coating. In addition, the cables will generate heat during the transmission of electricity. If handled improperly, it may cause the cables to burn or even cause the entire wind turbine to catch fire.

[0004] In view of this, the present utility model is proposed. Utility Model Content

[0005] The purpose of the present utility model is to provide a cable limiting protection device, which arranges the limiting column on the limiting ring, the limiting ring is arranged in the middle of the multiple cables, the middle part of the limiting column overlaps with a single cable, separates the multiple cables, restricts the movement of the cables, and avoids contact between the cables. In this way, the cable coating can be prevented from being damaged during use and the occurrence of accidents can be reduced.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a cable limit protection device, which is installed on the cable and includes:

[0008] A limiting ring is provided in the middle of the cable, the limiting ring being a hollow ring with a plurality of limiting holes formed thereon. The limiting holes are evenly distributed on the ring body of the limiting ring, and the limiting holes penetrate the limiting ring to connect the inside of the limiting ring with the outside of the ring;

[0009] Limiting column: The limiting column is installed on the limiting ring, one end of the limiting column is installed in the limiting hole, and the middle part of the limiting column overlaps with the cable.

[0010] Preferably, a through hole is opened in the middle of the limiting column, and a bolt is fixedly installed in the through hole. The through hole includes an upper through hole and a lower through hole. The diameter of the upper through hole is larger than the diameter of the lower through hole. The diameter of the lower through hole is equal to the diameter of the bolt body. The diameter of the upper through hole is greater than or equal to the diameter of the bolt head. The bolt is installed in the limiting hole.

[0011] Preferably, the length of the bolt body is greater than the length of the lower through hole, the bolt body extending out of the lower through hole is provided with an external thread, the limiting hole is provided with an internal thread, and the internal thread is adapted to the external thread of the bolt.

[0012] Preferably, a torsion groove is provided on the bolt head of the bolt, a torsion block is arranged in the torsion groove, and the torsion block drives the limiting column to move.

[0013] Preferably, a nut is installed at the end of the limiting hole located inside the limiting ring, and the nut is provided with an internal thread, which is adapted to the external thread of the bolt.

[0014] Preferably, a protective cover is provided on the outer circumferential surface of the limiting ring, and the protective cover is divided into two parts, a left protective cover and a right protective cover, and fixing components are provided at the ends of the left protective cover and the right protective cover.

[0015] Preferably, the fixing assembly includes a fixing block and a mounting block, the fixing block is installed on the two ends of the left protective cover, and the number is at least one, the mounting block is installed on the two ends of the right protective cover, the number of the mounting blocks is the same as that of the fixing blocks, and the mounting block is adapted to the installation position of the fixing block.

[0016] Preferably, the fixing block is provided with a fixing hole, the fixing hole is a countersunk through hole, the mounting block is provided with a threaded hole, a bolt passes through the fixing hole and is installed in the threaded hole to connect the fixing block and the mounting block.

[0017] Preferably, the diameter of the protective sleeve is equal to the maximum diameter of the limiting ring plus the length of the limiting column, and the end of the limiting column away from the limiting ring overlaps the protective sleeve.

[0018] Preferably, the cable limiting protection device further comprises an anti-wear sheath, which is installed on the cable and overlaps with the limiting ring, and the anti-wear sheath is installed on the cable through a cable tie.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] (1) The utility model limits the movement of the cable by providing the limiting column and the limiting ring, thereby reducing the mutual movement between the cables and improving the safety of the cable during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 An axonometric diagram of a cable limit protection device provided by an embodiment of the present utility model;

[0023] Figure 2 A diagram showing the use of the cable limit protection device provided in an embodiment of the present utility model;

[0024] Figure 3 A perspective view of a cable limiting protection device provided in an embodiment of the present utility model.

[0025] In the accompanying drawings, 1-limiting ring; 2-limiting hole; 3-limiting column; 4-cable; 5-nut; 6-upper through hole; 7-lower through hole; 8-left protective cover; 9-right protective cover; 10-fixing block; 11-mounting block. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention. If specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or the conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0027] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal connection between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In order to more clearly illustrate the technical solution of the present invention, it is described below in the form of specific embodiments.

[0030] Example

[0031] like Figure 1-3 As shown, this embodiment provides a cable limit protection device, which is installed on the cable 4, and includes a limit ring 1 and a limit column 3. The limit ring 1 is arranged between multiple cables 4, and the limit column 3 is installed on the ring body of the limit ring 1. The cables 4 are separated by the limit column 3, and the movement of the cables 4 is restricted, thereby reducing the mutual contact between the cables 4 and the cables 4, and avoiding accidents caused by damage to the coating of the cables 4.

[0032] In this embodiment, the limiting ring 1 is a hollow ring with a hollow structure inside, so it is divided into two parts, the inner ring and the outer ring. A plurality of limiting holes 2 are provided on the ring body of the limiting ring 1. The limiting holes 2 are evenly arranged on the ring body of the limiting ring 1. The limiting holes 2 pass through the limiting ring 1, connecting the inner ring and the outer ring of the limiting ring 1.

[0033] The limiting column 3 is installed on the limiting ring 1, one end of the limiting column 3 is installed in the limiting hole 2, and the middle part of the limiting column 3 overlaps with the cable 4. During use, the limiting column 3 is installed in the corresponding limiting hole 2 according to the position of the cable 4 to ensure that the cable 4 can overlap with the middle part of the limiting column 3. The limiting column 3 separates the cables 4 and limits the movement of the cables 4.

[0034] In order to ensure the stability of the connection between the limiting ring 1 and the limiting column 3, in this embodiment, a through hole is opened in the middle of the limiting column 3, and a bolt is fixedly installed in the through hole. The bolt is installed in the limiting hole 2 to connect the limiting column 3 and the limiting ring 1.

[0035] In order to ensure the stability of the connection, the through hole includes an upper through hole 6 and a lower through hole 7. The diameter of the upper through hole 6 is larger than the diameter of the lower through hole 7. The bolt head of the bolt is provided in the upper through hole 6. The diameter of the upper through hole 6 is larger than or equal to the diameter of the bolt head, and the bolt body of the bolt is provided in the lower through hole 7. The diameter of the lower through hole 7 is equal to the diameter of the bolt body. At the same time, the length of the lower through hole 7 is smaller than the length of the bolt body, so as to ensure that the bolt body of the bolt can enter the limiting hole 2. At the same time, an external thread is provided on the bolt body extending out of the lower through hole 7, and an internal thread is provided in the limiting hole 2. The internal thread is adapted to the external thread. During use, the bolt body of the bolt can be installed in the limiting hole 2, so as to achieve the effect of connecting the limiting column 3 and the limiting ring 1.

[0036] Of course, in order to further ensure the stability of the connection, a nut 5 is installed at the end of the limiting hole 2 located inside the limiting ring 1. The nut 5 is provided with an internal thread, and the internal thread is adapted to the external thread of the bolt. During use, the stability of the connection between the limiting column 3 and the limiting ring 1 is further ensured by the limiting hole 2 and the nut 5.

[0037] Of course, in order to facilitate the installation of the bolt into the limiting hole 2, a torsion slot is provided on the bolt head of the bolt, and a torsion block is provided corresponding to the torsion slot. The torsion block is adapted to the torsion slot, and the torsion block can be taken out of the torsion slot and installed into the torsion slot through the torsion block. Then the torsion block is rotated, and the torsion block drives the bolt to rotate, and the bolt drives the limiting column 3 to rotate. The limiting column 3 is rotated into the limiting ring 1 and the nut 5 through the adapted external and internal threads, and is connected to the limiting ring 1. Of course, during use, the torsion slot can be set to a common straight line, cross or hexagonal shape, or it can be set to other uncommon shapes, such as triangles and quadrilaterals, to prevent it from being disassembled and stolen.

[0038] A protective cover is provided on the outer circumferential surface of the limiting ring 1, and the protective cover is divided into two parts, a left protective cover 8 and a right protective cover 9. The ends of the left protective cover 8 and the right protective cover 9 are both provided with fixing components, and the fixing components realize the merging and separation between the left protective cover 8 and the right protective cover 9.

[0039] The fixing assembly includes a fixing block 10 and a mounting block 11. The fixing block 10 is installed on both ends of the left protective cover 8, and there is at least one fixing block 10. The mounting block 11 is installed on both ends of the right protective cover 9. The number of the mounting blocks 11 is the same as that of the fixing blocks 10, and the mounting position of the mounting block 11 is adapted to the installation position of the fixing block 10 to ensure that when the left protective cover 8 and the right protective cover 9 are fitted together, the mounting block 11 and the fixing block 10 can fit together.

[0040] The fixing block 10 is provided with a countersunk through-hole, and the mounting block 11 is provided with a threaded hole. The diameter of the fixing hole is equal to or greater than the diameter of the threaded hole. Bolts can be inserted through the fixing hole and installed into the threaded hole, connecting the fixing block 10 and the mounting block 11, thereby connecting the left and right protective covers 8 and 9. In this embodiment, a mounting block 10 is installed in the middle of each end of the left protective cover 8, and a corresponding fixing block 11 is installed in the middle of each end of the right protective cover 9.

[0041] Of course, in order to ensure that the protective cover can be used normally, the diameter of the protective cover is equal to the maximum diameter of the limiting ring 1 plus the length of the limiting column 3 (the length of the limiting column 3 refers to the sum of the lengths of the upper through hole 6 and the lower through hole 7, excluding the length of the bolt extending out), and the end of the limiting column 3 away from the limiting ring 1 overlaps with the protective cover.

[0042] At the same time, an anti-wear sheath is provided on the outer circumference of the cable 4. The anti-wear sheath overlaps the limiting ring 1 and the limiting post 3 to reduce contact between the cable 4 and the limiting ring 1 and the limiting post 3, thereby avoiding damage to the coating of the cable 4. The anti-wear sheath is installed on the cable 4 using a cable tie.

[0043] In order to further deepen the understanding of this utility model, the following specific operation methods are given:

[0044] First, the anti-wear sheath is installed on the cable 4 while being tightened with the cable tie. To prevent the cable tie from damaging the cable 4, the head of the cable tie is facing outwards.

[0045] Then, the limit ring 1 is installed in the area of ​​the cable 4 where the anti-wear sheath is installed. The limit ring 1 is installed at the center position of multiple cables 4, and then the limit columns 3 are installed on both sides of a single cable 4. By matching the torsion block with the torsion groove, the torsion block is rotated to drive the limit column 3 to rotate. Through the adaptation of the internal thread and the external thread, the limit column 3 is rotated into the limit ring 1, and the end of the bolt on the limit column 3 is provided with an external thread and engages with the nut 5. The limit column 3 is fixedly connected to the limit ring 1 to ensure that the limit columns 3 are installed on both sides of each cable 4 to limit the movement of the cable 4.

[0046] After the installation is completed, the left protective cover 8 and the right protective cover 9 are put on the outside of the limiting ring 1, the fixing block 10 and the mounting block 11 are connected together by bolts, the left protective cover 8 and the right protective cover 9 are connected together, and the end of the limiting column 3 is overlapped with the left protective cover 8 and the right protective cover 9, and the installation is completed.

[0047] The utility model limits the movement of the cables 4 by providing the limiting posts 3 and the limiting rings 1 , thereby reducing the mutual movement between the cables 4 and improving the safety of the cables 4 during use.

[0048] Finally, it should be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, and the present invention is not limited thereto. Those skilled in the art will be able to make various modifications and improvements without departing from the principles and essence of the present invention, and such modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A cable limit protection device, installed on a cable, characterized in that: Includes: A limiting ring is provided in the middle of the cable, the limiting ring being a hollow ring with a plurality of limiting holes formed thereon. The limiting holes are evenly distributed on the ring body of the limiting ring, and the limiting holes penetrate the limiting ring to connect the inside of the limiting ring with the outside of the ring; A limiting column is installed on the limiting ring, one end of the limiting column is installed in the limiting hole, and the middle part of the limiting column overlaps the cable.

2. The cable limit protection device according to claim 1, characterized in that: A through hole is provided in the middle of the limiting column, and a bolt is fixedly installed in the through hole. The through hole includes an upper through hole and a lower through hole. The diameter of the upper through hole is larger than the diameter of the lower through hole. The diameter of the lower through hole is equal to the diameter of the bolt body. The diameter of the upper through hole is greater than or equal to the diameter of the bolt head. The bolt is installed in the limiting hole.

3. The cable limit protection device according to claim 2, characterized in that: The length of the bolt body is greater than the length of the lower through hole. The bolt body extending out of the lower through hole is provided with an external thread. The limiting hole is provided with an internal thread, and the internal thread is adapted to the external thread of the bolt.

4. The cable limit protection device according to claim 3, characterized in that: A torsion groove is provided on the bolt head, a torsion block is arranged in the torsion groove, and the torsion block drives the limiting column to move.

5. The cable limit protection device according to claim 3, characterized in that: A nut is installed at the end of the limiting hole located inside the limiting ring. The nut is provided with an internal thread that is matched with the external thread of the bolt.

6. The cable limit protection device according to claim 1, characterized in that: A protective cover is provided on the outer circumferential surface of the limiting ring. The protective cover is divided into two parts, a left protective cover and a right protective cover. The ends of the left protective cover and the right protective cover are both provided with fixing components.

7. The cable limit protection device according to claim 6, characterized in that: The fixing assembly includes a fixing block and a mounting block. The fixing block is installed on the two ends of the left protective cover, and there is at least one of the fixing blocks. The mounting blocks are installed on the two ends of the right protective cover. The number of the mounting blocks is the same as that of the fixing blocks, and the mounting blocks are adapted to the installation positions of the fixing blocks.

8. The cable limit protection device according to claim 7, characterized in that: The fixing block is provided with a fixing hole, which is a countersunk through hole. The mounting block is provided with a threaded hole. A bolt passes through the fixing hole and is installed in the threaded hole to connect the fixing block and the mounting block.

9. The cable limit protection device according to claim 6, characterized in that: The diameter of the protective sleeve is equal to the maximum diameter of the limiting ring plus the length of the limiting column, and the end of the limiting column away from the limiting ring overlaps the protective sleeve.

10. The cable position limiting protection device according to claim 1, characterized in that: It also includes an anti-wear sheath, which is installed on the cable and overlaps with the limiting ring. The anti-wear sheath is installed on the cable through a cable tie.