Cable fixing device under tower door of wind power plant

Abstract

The utility model relates to the technical field of power equipment installation, in particular to a wind power plant tower door lower cable fixing device which comprises a positioning block, a penetrating hole matched with a cable to penetrate is formed in the center of the positioning block, and fixing blocks are arranged at the upper end and the lower end of the penetrating hole of the positioning block. The outer side of the fixing block is connected with an outer supporting frame and an inner supporting frame which can swing by an angle, clamping pieces with corresponding opening directions are arranged on the corresponding sides of the same group of the inner supporting frame, and movable pressing columns penetrating through the inner supporting frame are arranged at the inner ends of the clamping pieces. The outer portion of the end, connected with the clamping piece, of the movable pressing column is sleeved with a telescopic spring, and a positioning bolt is connected to the outer supporting bracket in a penetrating and inserting mode through a threaded structure. According to the fixing device for the lower cable of the tower drum door of the wind power plant, an all-dimensional surrounding fixing structure and the adjustable clamping assembly are adopted, stable clamping of cables with different diameters is achieved, and the stability and safety of cable fixing are improved.

Description

Technical Field

[0001] This utility model relates to the field of power equipment installation technology, specifically to a cable fixing device under the gate of a wind farm tower. Background Technology

[0002] During the operation of wind turbine units, the tower, as a crucial structure connecting the foundation platform and the nacelle, houses a large number of power cables and control cables for transmitting electrical energy and signals. To ensure the safe operation of these cables and prevent displacement and damage caused by vibration, wind load, or human factors, a specialized cable fixing device needs to be installed below the tower entrance to effectively secure and guide the cables entering and exiting the tower.

[0003] Most existing cable fixing devices adopt linear or point contact fixing methods, which only apply force on one side or locally to press the cable to the support structure. It is difficult to achieve effective all-round circumferential fixing. This non-closed structure leads to uneven stress on the cable, which can easily cause slippage, displacement or even loosening. Especially in the long-term vibration environment of the tower, it is more likely to cause cable wear or breakage, which poses a significant safety hazard. In addition, due to the lack of an adjustable ring clamping structure, the device cannot flexibly adjust the clamping range according to different cable diameters, resulting in poor versatility. Utility Model Content

[0004] The purpose of this utility model is to provide a cable fixing device under the gate of a wind farm tower, so as to solve the problems mentioned in the background art, such as the difficulty in achieving all-round circumferential fixing, uneven force easily leading to cable slippage or damage, poor adaptability of clamping structure, and inability to flexibly adapt to different cable diameters.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cable fixing device under the door of a wind farm tower, comprising a positioning block, wherein a through hole for cable passage is provided at the center of the positioning block, and fixing blocks are provided at both the upper and lower ends of the through hole on both sides of the positioning block. An outer support bracket and an inner support bracket with swing angle are respectively connected to the outer side of the fixing block. A clamping member with corresponding opening direction is provided on the corresponding side of the inner support bracket, and a movable pressure column passing through the inner support bracket is provided at the inner end of the clamping member. A telescopic spring is sleeved on the outer end of the movable pressure column connected to the clamping member, and a positioning bolt is inserted and connected to the outer support bracket through a threaded structure.

[0006] Preferably, the end of the movable pressure column facing the outer support bracket corresponds to the inner end of the positioning bolt, and a pressure-blocking interface is fixed at the center of the end of the movable pressure column facing the outer support bracket.

[0007] Preferably, the outer side of the fixing block has an arc-shaped opening, and a fixing post is provided in the arc-shaped opening on the outer side of the fixing block, and the inner end of the outer support bracket is movably sleeved on the outside of the fixing post.

[0008] Preferably, a threaded ring is fixed on the outer side wall of the connection end between the outer support bracket and the fixed column, and a positioning pin is inserted inside the threaded ring. Furthermore, a plurality of screw holes that match the end structure of the positioning pin are evenly provided on the inner wall of the arc-shaped opening on the outer side of the fixed block.

[0009] Preferably, the fixed block is further provided with a movable groove that cooperates with the inner end structure of the inner support bracket, and the inner end of the inner support bracket is connected to the movable groove inside the fixed block through a rotating shaft.

[0010] Preferably, the clamping components are all arc-shaped structures with soft pads adhered and fixed to their inner walls, and each set of clamping components corresponds to the position of the perforation on the positioning block.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This cable fixing device under the wind farm tower gate adopts an all-around surrounding fixing structure and adjustable clamping components, achieving stable clamping of cables of different diameters and improving the stability and safety of cable fixing. The device uses positioning blocks to initially position the cable, and combined with the swingable and adjustable outer and inner support brackets, drives the clamping components to form a surrounding clamping of the cable. The coordinated use of movable pressure columns and telescopic springs allows the clamping components to have a buffering effect while tightly adhering to the cable, while the positioning bolts are used to precisely adjust the clamping force, thus forming a stable, reliable, and highly adaptable cable fixing structure. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the cable fixing device under the wind farm tower gate according to the present invention;

[0013] Figure 2 This is a schematic diagram of the connection structure between the clamping component and the fixing block of a cable fixing device under the wind farm tower gate according to the present invention;

[0014] Figure 3 This is a schematic diagram of the external side view of the positioning block of the cable fixing device under the wind farm tower gate according to the present invention.

[0015] In the diagram: 1. Positioning block; 2. Fixing block; 3. Outer support bracket; 4. Inner support bracket; 5. Clamping component; 6. Movable pressure column; 7. Telescopic spring; 8. Positioning bolt; 9. Pressing interface; 10. Fixing column; 11. Threaded ring; 12. Positioning pin. Detailed Implementation

[0016] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-3This utility model provides a technical solution: a cable fixing device under the door of a wind farm tower, including a positioning block 1. The center of the positioning block 1 has a through hole for the cable to pass through. Fixing blocks 2 are welded and fixed to both the upper and lower ends of the through hole on both sides of the positioning block 1. An outer support bracket 3 and an inner support bracket 4 with swing angle are respectively connected to the outer side of the fixing block 2. The outer ends of the outer support bracket 3 and the inner support bracket 4 are fixedly connected by connectors. A clamping member 5 with the corresponding opening direction is provided on the corresponding side of the inner support bracket 4. A movable pressure column 6 passing through the inner support bracket 4 is welded and fixed to the inner end of the clamping member 5. A telescopic spring 7 is sleeved on the outside of the end of the movable pressure column 6 connected to the clamping member 5. The two ends of the telescopic spring 7 are respectively connected to the inner support bracket 4 and the clamping member 5. Furthermore, the outer support bracket 3 is connected to a positioning bolt 8 via a threaded structure. With this structure, the cable can be initially fixed through the through hole in the center of the positioning block 1. Depending on the specific location and direction of the cable, the outer support bracket 3 and the inner support bracket 4 can flexibly adjust their angles to ensure that the clamping parts 5 are accurately aligned with the cable. The two sets of clamping parts 5 can correspond to each other to form a closed or near-closed ring structure, achieving complete encapsulation of the cable. Moreover, with the cooperation of the movable pressure column 6 and the telescopic spring 7, the clamping parts 5 can not only tightly adhere to the cable surface but also provide cushioning when subjected to vibration, avoiding cable damage caused by hard contact. In addition, by adjusting the positioning bolt 8 on the outer support bracket 3, the position of the movable pressure column 6 can be precisely controlled, thereby adjusting the clamping parts. The pressure applied to the cable by the clamping member 5 solves the problems of uneven force, easy slippage or loosening in traditional cable fixing devices. Furthermore, its adjustable design greatly improves adaptability to cables of different diameters, enhancing the overall reliability and safety of cable fixing. The end of the movable pressure column 6 facing the outer support bracket 3 corresponds to the inner end of the positioning bolt 8, and a pressure-resistant interface 9 is welded and fixed at the center of the end of the movable pressure column 6 facing the outer support bracket 3. The pressure-resistant interface 9 matches the structure of the inner end of the positioning bolt 8. When the positioning bolt 8 is rotated, its inner end gradually advances and acts on the pressure-resistant interface 9, causing the movable pressure column 6 to move axially. That is, when the movable pressure column 6 is subjected to force through the clamping member 5, it is restricted by the inner end of the positioning bolt 8. The clamping force of the clamping component 5 on the cable is controlled, which improves the convenience of operation and the stability of clamping. The outer side of the fixing block 2 has an arc-shaped opening, and a fixing post 10 is welded and fixed inside the arc-shaped opening on the outer side of the fixing block 2. The inner end of the outer support bracket 3 is movably sleeved on the outside of the fixing post 10. With this structure, the inner end of the outer support bracket 3 can rotate flexibly within the angle range allowed by the arc-shaped opening with the fixing post 10 as the axis, so as to make adaptive adjustments according to the actual route and position of the cable. A threaded ring 11 is welded and fixed on the outer side wall of the connection end of the outer support bracket 3 and the fixing post 10, and a positioning pin 12 is inserted inside the threaded ring 11. Furthermore, a number of screw holes that match the end structure of the positioning pin 12 are evenly provided on the inner wall of the arc-shaped opening on the outer side of the fixing block 2.When the outer support bracket 3 swings around the fixed column 10 to a suitable angle, the positioning pin 12 passes through the threaded ring 11 and is screwed into the corresponding screw hole on the inner wall of the arc-shaped opening on the outer side of the fixed block 2, thereby locking the current swing angle of the outer support bracket 3 and enhancing the device's adaptability to complex wiring environments. The fixed block 2 also has a movable groove inside that matches the inner end structure of the inner support bracket 4, and the inner end of the inner support bracket 4 is connected to the inner wall of the movable groove inside the fixed block 2 through a rotating shaft. With this structure, the inner end of the inner support bracket 4 can move synchronously inside the fixed block 2. The clamping mechanism allows for flexible rotation and angle adjustment within its movable groove range, enabling adaptive adjustment based on the actual position and direction of the cable. Each clamping component 5 is arc-shaped with a soft pad adhered to its inner wall. Each set of clamping components 5 corresponds to a perforation on the positioning block 1. This structure allows the clamping components 5 to form a close contact with the outer surface of the cable in the closed state. The soft pad increases friction while preventing damage to the cable. Furthermore, the position of each set of clamping components 5 ensures accurate alignment with the cable at the perforation during operation, achieving a circumferential clamping effect.

[0018] Working principle: When using this wind farm tower gate cable fixing device, firstly, weld and fix the positioning block 1 to a suitable position in the area under the gate inside the wind farm tower, aligning its central through hole with the cable passage path. Then, pass the cable through the central through hole of the positioning block 1. Next, adjust the angle of the outer support bracket 3 and the inner support bracket 4 according to the actual cable route and height. The inner end of the outer support bracket 3 can swing around the fixing column 10 to adapt to the cable position. The inner end of the inner support bracket 4 is adjusted by the rotation shaft cooperating with the movable groove inside the fixing block 2. After confirming the angle, the positioning screw 1 in the threaded ring 11 is used to fix the cable. 2. Screw the clamping piece 5 into the screw hole corresponding to the arc-shaped opening of the fixing block 2 to achieve angle locking, ensuring that the clamping piece 5 can accurately correspond to the cable position. The two sets of clamping pieces 5 can form a ring clamping in the closed state. When the clamping piece 5 is pressed, it will drive the movable pressure column 6 to move in the inner support bracket 4, and the telescopic spring 7 will also be compressed at the same time. At this time, rotate the positioning bolt 8 on the outer support bracket 3 so that its inner end gradually advances and acts on the pressure interface 9. The outer end of the movable pressure column 6 will be restricted by the position of the inner end of the positioning bolt 8 to control the degree of contact between the clamping piece 5 and the cable. Finally, the clamping force is set, thereby completing a series of operations.

[0019] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wind farm tower door cable fixing device below, comprising a positioning block (1), the center of the positioning block (1) is provided with a through hole matched with the cable, characterized in that: The positioning block (1) has a fixing block (2) at both the upper and lower ends of the perforation. The outer side of the fixing block (2) is connected to an outer support bracket (3) and an inner support bracket (4) with a swing angle. The inner support bracket (4) has a clamping member (5) with the corresponding opening direction on the corresponding side. The inner end of the clamping member (5) is provided with a movable pressure column (6) that passes through the inner support bracket (4). The end of the movable pressure column (6) connected to the clamping member (5) is covered with a telescopic spring (7). The outer support bracket (3) is connected with a positioning bolt (8) through a threaded structure.

2. A wind farm tower door cable fixation device below the door according to claim 1, characterized in that: The end of the movable pressure column (6) facing the outer support bracket (3) corresponds to the inner end of the positioning bolt (8), and a pressure interface (9) is fixed at the center of the end of the movable pressure column (6) facing the outer support bracket (3).

3. A wind farm tower door cable fixation device below the door according to claim 1, characterized in that: The outer side of the fixing block (2) is provided with an arc-shaped opening, and a fixing post (10) is provided in the arc-shaped opening on the outer side of the fixing block (2), and the inner end of the outer support bracket (3) is movably sleeved on the outside of the fixing post (10).

4. A wind farm tower door cable fixation device below the door according to claim 3, characterized in that: A threaded ring (11) is fixed on the outer wall of the connection end between the outer support bracket (3) and the fixed column (10), and a positioning screw (12) is inserted inside the threaded ring (11). Furthermore, a number of screw holes that match the end structure of the positioning screw (12) are evenly provided on the inner wall of the arc-shaped opening on the outer side of the fixed block (2).

5. A wind farm tower door cable fixation device below the door according to claim 1, characterized in that: The fixed block (2) is also provided with a movable groove that matches the inner end structure of the inner support bracket (4), and the inner end of the inner support bracket (4) is connected to the movable groove inside the fixed block (2) through a rotating shaft.

6. A wind farm tower door cable fixation device below the door according to claim 1, characterized in that: The clamping components (5) are all arc-shaped structures with soft pads glued to their inner walls, and each set of clamping components (5) corresponds to the position of the perforation on the positioning block (1).

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