Fireproof spacer support for power cable

Abstract

The utility model relates to power equipment technical field especially relates to a fireproof isolation support for power cable. Including bottom plate, the fixedly connected with stand on bottom plate, the even interval of stand is provided with a plurality of rotating sleeve, rotating sleeve side wall is equipped with clamping fixed establishment, rotating sleeve both sides are fixedly connected with connecting rod, and the one end fixedly connected with first clamping seat of connecting rod away from rotating sleeve, and the one side fixedly connected with second clamping seat of sliding connection of first clamping seat, and the link rod is passed and is equipped with in second clamping seat, and the one end fixedly connected with pull block of link rod away from first clamping seat, and the one end fixedly connected with clamping plate of link rod away from pull block, and clamping plate is connected with second clamping seat through the spring no.

Description

Technical Field

[0001] This utility model relates to the field of power equipment technology, and in particular to a fireproof isolation bracket for power cables. Background Technology

[0002] In power transmission and distribution systems, especially in locations with dense cable laying such as substations, cable tunnels, and shafts, the safe operation of power cables is crucial. Fire is one of the major threats in such locations, and once it occurs, it can easily spread and escalate along the cables. To effectively contain fire and improve the fire safety level of the system, fireproof isolation supports are often installed between cable layers or cable bundles. The core function of these supports is to form a physical barrier between cables or cable layers, blocking the propagation path of flames and high-temperature smoke, and buying valuable time for fire fighting and personnel evacuation.

[0003] Currently, common cable supports and insulators, while meeting fire safety requirements, often have limitations in terms of cable layout adaptability and fixation reliability. On one hand, due to structural design constraints, many supports cannot easily adjust the distribution angle of the supported cables, failing to flexibly adapt to the cable routing requirements in complex paths (such as bends and branches), leading to inconvenient installation or failure to achieve optimal spatial isolation. On the other hand, the cable restraint and fixation methods may be inadequate: some fixing structures are too rigid, making it difficult to accommodate cables of different diameters or potentially damaging the cable sheath; others have insufficient or unreliable clamping force, allowing cables to easily loosen or even detach from the support under vibration, thermal expansion and contraction, or unexpected external forces. This not only affects the stable operation of the cables but also damages the integrity of the fire-resistant barrier, rendering it ineffective in a fire. Utility Model Content

[0004] This utility model provides a fireproof isolation bracket that can flexibly adjust the cable distribution angle and has a stable, reliable and highly adaptable cable clamping and fixing function.

[0005] The technical solution adopted by this utility model is as follows: a fireproof isolation bracket for power cables, including a base plate, a column fixedly connected to the base plate, a plurality of rotating sleeves evenly spaced on the column, a clamping and fixing mechanism provided on the side wall of the rotating sleeve, a connecting rod fixedly connected to both sides of the rotating sleeve, a first clamping seat fixedly connected to the end of the connecting rod away from the rotating sleeve, a second clamping seat slidably connected to one side of the first clamping seat, a connecting rod passing through the second clamping seat, a pull block fixedly connected to the end of the connecting rod away from the first clamping seat, a clamping plate fixedly connected to the end of the connecting rod away from the pull block, and the clamping plate and the second clamping seat connected by a spring sleeved on the outside of the connecting rod.

[0006] As a further improvement of this utility model, both the upper and lower ends of the rotating sleeve are rotatably connected to the column through a bearing.

[0007] As a further improvement of this utility model, the clamping and fixing mechanism includes a screw rod that passes through the side wall of the rotating sleeve and is threadedly connected thereto. A knob located on the outside of the rotating sleeve is fixedly connected to the end of the screw rod away from the column, and a clamping block that cooperates with the column is rotatably connected to the end of the screw rod away from the knob.

[0008] As a further improvement of this utility model, the screw is rotatably connected to the clamping block through bearing two.

[0009] As a further improvement of this utility model, the clamping block is provided with a number of anti-slip strips on the surface near the column, and the outer surface of the column is provided with a number of anti-slip grooves that are adapted to the anti-slip strips.

[0010] As a further improvement of this utility model, a soft pad is fixedly connected to the side of the first clamping seat near the second clamping seat.

[0011] As a further improvement of this utility model, the upper and lower ends of the second clamping seat are integrally connected with T-shaped sliders on the side near the first clamping seat, and the upper and lower ends of the first clamping seat are provided with T-shaped grooves for the T-shaped sliders to slide.

[0012] As a further improvement of this utility model, the upper and lower ends of the first clamping seat are provided with fixing grooves on both sides of the T-shaped slide groove. A second spring is connected in the fixing groove, and one end of the second spring is connected to a limiting block located on one side of the T-shaped slider.

[0013] The beneficial effects of this utility model are as follows: By setting a rotating sleeve that can rotate around the column and a matching clamping and fixing mechanism, this utility model realizes flexible adjustment of the horizontal distribution angle of the cable clamping unit (composed of a first clamping seat, a second clamping seat, etc.), which significantly improves the adaptability of the bracket to complex cable laying paths (such as turns and branches); at the same time, its unique sliding clamping seat design, combined with the spring pre-tightening clamping plate and buffer pad, provides a stable, reliable and self-adaptive cable limiting and fixing function, effectively preventing the cable from loosening under vibration, thermal expansion and contraction or external force, ensuring the integrity of the fireproof isolation barrier and the safe operation of the cable; thus, in a single structure, it simultaneously achieves the unity of flexibility in the spatial layout of the fireproof isolation barrier and clamping reliability, significantly improving the overall performance and practicality of the bracket. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a fireproof isolation bracket for power cables according to this utility model;

[0015] Figure 2This is a partial sectional view of a fireproof isolation bracket for power cables according to this utility model;

[0016] Figure 3 This is a schematic diagram of the clamping and fixing mechanism of a fireproof isolation bracket for power cables according to this utility model;

[0017] Figure 4 This is a partial exploded view of the fireproof isolation bracket for power cables according to this utility model;

[0018] Figure 5 This is a partial structural cross-sectional view of a fireproof isolation bracket for power cables according to this utility model.

[0019] As shown in the figure: 1. Base plate; 2. Column; 3. Rotating sleeve; 4. Clamping and fixing mechanism; 401. Screw; 402. Knob; 403. Clamping block; 404. Bearing II; 5. Connecting rod; 6. First clamping seat; 7. Second clamping seat; 8. Connecting rod; 9. Pull block; 10. Clamping plate; 11. Spring I; 12. Bearing I; 13. Soft pad; 14. T-shaped slider; 15. Fixing groove; 16. Spring II; 17. Limiting block. Detailed Implementation

[0020] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly mentioned in this specification are defined relative to their structure and are relative concepts. Therefore, they may vary depending on their location and usage; thus, these or other directional terms should not be interpreted as restrictive terms.

[0021] The singular forms “a,” “the,” and “the” used in this specification are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes one or more of the associated listed items, any or all possible combinations thereof.

[0022] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0023] This utility model provides the following: Figure 1-5The fireproof isolation bracket for power cables shown includes a base plate 1, a column 2 fixedly connected to the base plate 1, a plurality of rotating sleeves 3 evenly spaced on the column 2, a clamping and fixing mechanism 4 provided on the side wall of the rotating sleeve 3, a connecting rod 5 fixedly connected to both sides of the rotating sleeve 3, a first clamping seat 6 fixedly connected to the end of the connecting rod 5 away from the rotating sleeve 3, a second clamping seat 7 slidably connected to the first clamping seat 6 on one side, a connecting rod 8 passing through the second clamping seat 7, a pull block 9 fixedly connected to the end of the connecting rod 8 away from the first clamping seat 6, a clamping plate 10 fixedly connected to the end of the connecting rod 8 away from the pull block 9, and a spring 11 sleeved on the outside of the connecting rod 8 connecting the clamping plate 10 and the second clamping seat 7.

[0024] like Figure 1 and Figure 2 As shown, in this utility model, the upper and lower ends of the rotating sleeve 3 are rotatably connected to the column 2 through bearing 12, so that the rotating sleeve 3 can rotate flexibly around the column 2. When it is necessary to adjust the distribution angle of the cable, the operator can easily rotate the rotating sleeve 3 to place the cable held by the first clamping seat 6 and the second clamping seat 7 in a suitable position to adapt to the cable's routing requirements in complex paths, such as turns and branches.

[0025] like Figure 1-3 As shown, the clamping and fixing mechanism 4 of this utility model includes a screw 401 that passes through the side wall of the rotating sleeve 3 and is threadedly connected to it. A knob 402 located on the outside of the rotating sleeve 3 is fixedly connected to the end of the screw 401 away from the column 2. A clamping block 403 that cooperates with the column 2 is rotatably connected to the end of the screw 401 away from the knob 402. The screw 401 is rotatably connected to the clamping block 403 through a bearing 404. Several anti-slip strips are provided on the surface of the clamping block 403 near the column 2. Several anti-slip grooves that are adapted to the anti-slip strips are provided on the outer surface of the column 2.

[0026] For the clamping and fixing mechanism 4, after the rotating sleeve 3 is adjusted to a suitable angle, the operator can rotate the knob 402 to move the screw 401 towards the column 2 under the action of the internal thread on the side wall of the rotating sleeve 3. Since the screw 401 is rotatably connected to the clamping block 403 through the bearing 404, the movement of the screw 401 will push the clamping block 403 closer to the column 2. The anti-slip strip on the surface of the clamping block 403 near the column 2 is adapted to the anti-slip groove on the outer surface of the column 2. When the two are tightly fitted, they can effectively increase the friction, thereby stably fixing the rotating sleeve 3 on the column 2, preventing the rotating sleeve 3 from rotating arbitrarily, and ensuring that the cable distribution angle is fixed.

[0027] like Figure 4 and Figure 5As shown, in this utility model, a soft pad 13 is fixedly connected to the side of the first clamping seat 6 near the side of the second clamping seat 7. A T-shaped slider 14 is integrally connected to the upper and lower ends of the second clamping seat 7 near the side of the first clamping seat 6. A T-shaped groove for sliding the T-shaped slider 14 is provided on the upper and lower ends of the first clamping seat 6. A fixing groove 15 is provided on both sides of the T-shaped groove at the upper and lower ends of the first clamping seat 6. A second spring 16 is connected in the fixing groove 15. One end of the second spring 16 is connected to a limiting block 17 located on one side of the T-shaped slider 14.

[0028] When clamping and fixing the cable, first pull the lever 9, causing the connecting rod 8 to move the clamping plate 10 away from the first clamping seat 6, at which point the spring 11 is compressed. After placing the cable between the first clamping seat 6 and the clamping plate 10, release the lever 9. The elastic force of the spring 11 will cause the clamping plate 10 to move towards the first clamping seat 6, thereby clamping the cable. At the same time, the soft pad 13 fixedly connected to the side of the first clamping seat 6 near the second clamping seat 7 can prevent damage to the cable outer sheath during clamping and can adapt to cables of different diameters, providing a stable, reliable and self-adaptive cable limiting and fixing function.

[0029] The second clamping seat 7 slides within the T-shaped groove of the first clamping seat 6 via the T-shaped slider 14, ensuring the stability of the sliding connection between the second clamping seat 7 and the first clamping seat 6. When it is necessary to disassemble or replace the cable, the second clamping seat 7 can be easily slid. Furthermore, the spring 16 and the limiting block 17 within the fixing groove 15 provide a certain degree of limitation on the T-shaped slider 14, preventing the second clamping seat 7 from accidentally sliding during normal use, further improving the reliability of cable fixing.

[0030] Working Principle: In practical implementation, the base plate is first fixed in a suitable position as a stable foundation for the entire support. When it is necessary to adjust the cable distribution angle, the operator manually rotates the rotating sleeve. Since the rotating sleeve is rotatably connected to the column through a bearing, the rotation process is easy and flexible. After rotating to the appropriate angle, the operator rotates the knob, causing the screw to push the clamping block closer to the column. The anti-slip strip and anti-slip groove fit tightly together, using friction to fix the rotating sleeve to the column, ensuring the stability of the cable distribution angle.

[0031] When securing the cable, the operator pulls the lever, which moves the clamping plate, compressing spring one. After placing the cable between the first clamping seat and the clamping plate, the operator releases the lever, and the elastic force of spring one clamps the cable securely. The presence of a soft pad prevents damage to the cable's outer sheath and accommodates cables of different diameters. The second clamping seat slides within the T-shaped groove of the first clamping seat via a T-shaped slider, facilitating cable installation and removal. Spring two and a limiting block limit the T-shaped slider, preventing accidental slippage of the second clamping seat and ensuring reliable cable fixation.

[0032] In practical applications, such as within substations, cable routing is complex and requires strict fire isolation. This fire-resistant isolation bracket allows for flexible adjustment of cable distribution angles, accommodating cable bends and branches, while providing stable and reliable cable fixation. It effectively blocks the propagation path of flames and high-temperature smoke, offering strong protection for the safe operation of the power system. In cable tunnels or shafts where cables are densely laid, this bracket also demonstrates its advantages, ensuring the integrity of the fire-resistant barrier and reducing losses from fires.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fireproof isolation bracket for power cables, comprising a base plate (1), characterized in that: A column (2) is fixedly connected to the base plate (1). Multiple rotating sleeves (3) are evenly spaced on the column (2). A clamping and fixing mechanism (4) is provided on the side wall of the rotating sleeve (3). A connecting rod (5) is fixedly connected to both sides of the rotating sleeve (3). A first clamping seat (6) is fixedly connected to the end of the connecting rod (5) away from the rotating sleeve (3). A second clamping seat (7) is installed on one side of the first clamping seat (6) and slidably connected to it. A connecting rod (8) is passed through the second clamping seat (7). A pull block (9) is fixedly connected to the end of the connecting rod (8) away from the first clamping seat (6). A clamping plate (10) is fixedly connected to the end of the connecting rod (8) away from the pull block (9). The clamping plate (10) and the second clamping seat (7) are connected by a spring (11) sleeved on the outside of the connecting rod (8).

2. The fireproof isolation bracket for power cables according to claim 1, characterized in that: The upper and lower ends of the rotating sleeve (3) are rotatably connected to the column (2) through bearing 1 (12).

3. A fireproof isolation bracket for power cables according to claim 1, characterized in that: The clamping and fixing mechanism (4) includes a screw (401) that passes through the side wall of the rotating sleeve (3) and is threadedly connected thereto. A knob (402) located outside the rotating sleeve (3) is fixedly connected to one end of the screw (401) away from the column (2). A clamping block (403) that cooperates with the column (2) is rotatably connected to one end of the screw (401) away from the knob (402).

4. A fireproof isolation bracket for power cables according to claim 3, characterized in that: The screw (401) is rotatably connected to the clamping block (403) via bearing two (404).

5. A fireproof isolation bracket for power cables according to claim 3, characterized in that: The clamping block (403) has several anti-slip strips on the side of the column (2) and the outer surface of the column (2) has several anti-slip grooves that are adapted to the anti-slip strips.

6. A fireproof isolation bracket for power cables according to claim 1, characterized in that: A soft pad (13) is fixedly connected to the side of the first clamping seat (6) near the second clamping seat (7).

7. A fireproof isolation bracket for power cables according to claim 1, characterized in that: The second clamping seat (7) has a T-shaped slider (14) integrally connected to the upper and lower ends of the first clamping seat (6). The first clamping seat (6) has a T-shaped groove for sliding the T-shaped slider (14) on the upper and lower ends of the first clamping seat (6).

8. A fireproof isolation bracket for power cables according to claim 7, characterized in that: The first clamping seat (6) has a fixing groove (15) on both the upper and lower ends of the T-shaped slide. A spring (16) is connected in the fixing groove (15). One end of the spring (16) is connected to a limiting block (17) located on one side of the T-shaped slider (14).

Images