Fireproofing channel for cables
By incorporating graphite expansion strips and ventilation ducts, the design solves the problems of heat dissipation and maintenance efficiency of fireproof cable trays in fire situations, achieving high-efficiency flame retardancy and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 成都千瑞通安防科技有限公司
- Filing Date
- 2025-08-18
- Publication Date
- 2026-07-31
AI Technical Summary
Existing fireproof cable trays are not good at dissipating heat in the event of a fire, have low ventilation efficiency, low maintenance efficiency, and high cost.
The design employs graphite expansion strips and ventilation ducts. The expansion strips expand to block the oxygen supply, and the expansion strips can be easily replaced after the equipment is shut down, maintaining the ventilation effect of the ventilation ducts.
It achieves effective flame retardancy in fire conditions, improves the heat dissipation efficiency of the equipment, simplifies the maintenance process, and reduces the maintenance costs for enterprises.
Smart Images
Figure CN224582782U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of cable tray technology, specifically a fireproof cable tray. Background Technology
[0002] As a crucial component of modern power transmission and communication, the safety of cables is paramount. In various building and industrial environments, cables often need to pass through walls, floors, and ceilings, which places higher demands on cable protection. Traditional cable protection measures often prove inadequate in extreme situations such as fires. Therefore, a fire-resistant cable tray has been developed. This fire-resistant cable tray utilizes advanced materials and design, possessing excellent fire resistance, effectively preventing the spread of fire and protecting cables from fire damage. Simultaneously, its reasonable structure and convenient installation make it suitable for various applications, providing reliable assurance for the safe operation of cables.
[0003] For example, application CN213213064U discloses a fireproof cable tray, which includes a tray body with a concave cross-section, an inverted top cover on top of the tray body, the top cover being concave, and multiple cable ties binding the top cover and the tray body; the top cover has ventilation windows, and multiple expansion strips are glued to the gaps between the ventilation windows. This utility model has a simple structure and good ventilation, heat dissipation, and fire resistance.
[0004] However, the ventilation window in this application has low ventilation efficiency, and the internal heat is not easy to dissipate, which can easily lead to the accumulation of internal heat and cause fire. In addition, after the equipment catches fire, due to the non-contractivity of the graphite expansion strip, the ventilation cover needs to be removed before the graphite expansion strip can be replaced, resulting in low maintenance efficiency and high enterprise costs. Utility Model Content
[0005] The purpose of this application is to provide a fireproof cable tray to solve the problems mentioned above.
[0006] The technical solution adopted in this application is as follows: A fireproof cable tray includes a main body cable tray top plate, a ventilation pipe is fixedly connected to the top of the cable tray top plate, upper fixing blocks of graphite expansion strips are fixedly connected to both sides of the ventilation pipe, a graphite expansion strip is slidably connected to the lower part of the upper fixing blocks of the graphite expansion strips, a lower fixing block of the graphite expansion strip is slidably connected to the lower part of the graphite expansion strip, a ventilation pipe cover is fixedly connected to the outer side of the lower fixing block of the graphite expansion strip, a graphite expansion strip replacement port is opened on the outer side of the ventilation pipe cover, and a graphite expansion strip is slidably connected to the inner side of the graphite expansion strip replacement port.
[0007] By adopting the above technical solution, during the operation of the equipment, when the internal cables are running, the internal air can circulate to the outside through the ventilation openings of the pipe cover and the ventilation openings of the pipe cover, facilitating heat dissipation of the internal cables. When the cables catch fire, the heat will cause the graphite expansion strip to expand. By being restricted by the lower and upper fixing blocks of the graphite expansion strip, the ventilation pipe cover moves downward. Through the compression of the telescopic top plate and the telescopic spring, the ventilation pipe opening blocking block fixed below the ventilation pipe cover enters the ventilation pipe opening. The sealing ramp block contacts the sealing ramp groove, making the interior sealed, thereby isolating oxygen from the outer wall and achieving a flame-retardant effect. When the internal fire is extinguished, the operator can pull out and replace the graphite expansion strip through the handle, without disassembling and replacing the equipment, which can improve maintenance efficiency and save costs for the enterprise.
[0008] In a preferred embodiment, the ventilation pipe cover has ventilation openings at the front and rear, and a dustproof net is fixedly connected to the inner side of the ventilation opening.
[0009] By adopting the above technical solution, ventilation can be provided inside the equipment, and dust can be isolated through the dustproof net.
[0010] In a preferred embodiment, a telescopic groove for the top plate is provided below the ventilation duct cover, a telescopic spring is fixedly connected to the top of the telescopic groove, and a telescopic top plate is fixedly connected to the bottom of the telescopic spring.
[0011] By adopting the above technical solution, the ventilation pipe cover can be supported, and the ventilation effect of the ventilation pipe opening and the sealed slope groove can be maintained.
[0012] In a preferred embodiment, a ventilation opening is provided above the ventilation pipe, and a sealing ramp groove is provided above the ventilation opening.
[0013] By adopting the above technical solution, the internal air can circulate with the outside through the vent of the pipe cover, dissipating the heat of the internal cables.
[0014] In a preferred embodiment, a graphite expansion strip handle is fixedly connected to the outer side of the graphite expansion strip.
[0015] By adopting the above technical solution, it is convenient to replace the graphite expansion strip.
[0016] In a preferred embodiment, a top plate clamping block is fixedly connected to the inner side of the top plate of the cable tray, a bottom plate clamping block is slidably connected to the inner side of the top plate clamping block, and a bottom plate is fixedly connected to the inner side of the bottom plate clamping block.
[0017] By adopting the above technical solution, the top plate and bottom plate of the cable tray are kept tightly connected, and the internal space of the top plate and bottom plate of the cable tray can be adjusted to fix the internal cables.
[0018] In a preferred embodiment, a sealing ramp block is fixedly connected to the top of the ventilation pipe cover, a ventilation pipe vent block is fixedly connected to the bottom of the sealing ramp block, a sealing ramp groove is slidably connected to the bottom of the sealing ramp block, and a ventilation pipe vent is fixedly connected to the outside of the ventilation pipe vent block.
[0019] By adopting the above technical solutions, the interior can be kept in a sealed state, isolating oxygen and achieving the effect of extinguishing the fire.
[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0021] In this application, during the operation of the equipment, when the internal cables are running, the internal air can circulate to the outside through the ventilation openings of the pipe cover and the ventilation pipe, facilitating heat dissipation from the internal cables. When the cables catch fire, the heat causes the graphite expansion strip to expand. The lower and upper fixing blocks of the graphite expansion strip restrict the movement of the ventilation pipe cover downwards. The expansion spring is compressed by the telescopic top plate, and the ventilation pipe opening block fixed below the ventilation pipe cover enters the ventilation pipe opening. The sealing ramp block contacts the sealing ramp groove, creating a sealed interior, thus isolating oxygen from the external wall and achieving a flame-retardant effect. After the fire is extinguished, workers can remove and replace the graphite expansion strip using the handle, eliminating the need for disassembly and replacement of the equipment, improving maintenance efficiency and saving costs for the company. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall structure of the device in this application;
[0023] Figure 2 This is a schematic diagram of the overall front view of the device in this application;
[0024] Figure 3 This is a schematic diagram of the ventilation duct structure of the device in this application;
[0025] Figure 4 This is a schematic diagram of the external structure of the ventilation pipe cover of the device in this application;
[0026] Figure 5 This is a schematic cross-sectional view of the ventilation pipe cover of the device in this application.
[0027] The markings in the diagram are: 1. Cable tray top plate; 2. Ventilation duct; 3. Upper fixing block of graphite expansion strip; 4. Graphite expansion strip; 5. Lower fixing block of graphite expansion strip; 6. Top plate telescopic groove; 7. Ventilation duct cover; 8. Telescopic spring; 9. Telescopic top plate; 10. Pipe cover vent; 11. Ventilation duct vent plug; 12. Sealing ramp block; 13. Dustproof net; 14. Graphite expansion strip handle; 15. Graphite expansion strip replacement port; 16. Ventilation duct vent; 17. Sealing ramp groove; 18. Cable tray bottom plate; 19. Cable tray top plate locking block; 20. Cable tray bottom plate locking block. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0029] Example:
[0030] Reference Figure 1-5 A fireproof cable tray includes a main body cable tray top plate 1, a ventilation pipe 2 fixedly connected above the cable tray top plate 1, graphite expansion strip upper fixing blocks 3 fixedly connected to both sides of the ventilation pipe 2, a graphite expansion strip 4 slidably connected below the graphite expansion strip upper fixing blocks 3, a graphite expansion strip lower fixing block 5 slidably connected below the graphite expansion strip 4, a ventilation pipe cover 7 fixedly connected to the outside of the graphite expansion strip lower fixing block 5, a graphite expansion strip replacement port 15 is opened on the outside of the ventilation pipe cover 7, and a graphite expansion strip 4 is slidably connected to the inside of the graphite expansion strip replacement port 15.
[0031] Reference Figure 1-5 During the operation of the equipment, when the internal cables are running, the internal air can circulate to the outside through the ventilation port 10 of the pipe cover and the ventilation port 16 of the ventilation pipe, facilitating heat dissipation of the internal cables. When the cables catch fire, the heat will cause the graphite expansion strip 4 to expand. By the restriction of the lower fixing block 5 and the upper fixing block 3 of the graphite expansion strip, the ventilation pipe cover 7 moves downward. The telescopic top plate 9 compresses the telescopic spring 8, and the ventilation pipe vent block 11 fixed below the ventilation pipe cover 7 enters the ventilation pipe vent 16. The sealing ramp block 12 contacts the sealing ramp groove 17, making the interior sealed, thereby isolating oxygen from the outer wall and achieving a flame-retardant effect. When the internal fire is extinguished, the staff can pull out and replace the graphite expansion strip 4 through the graphite expansion strip handle 14 without disassembling and replacing the equipment, which can improve maintenance efficiency and save costs for the company.
[0032] Reference Figure 1-4 The ventilation duct cover 7 has ventilation openings 10 at the front and rear, and a dustproof net 13 is fixedly connected to the inner side of the ventilation opening 10. It can provide ventilation to the inside of the equipment, and the dustproof net 13 can isolate dust.
[0033] Reference Figure 1-5 A telescopic groove 6 is provided below the ventilation duct cover 7. A telescopic spring 8 is fixedly connected to the top of the telescopic groove 6, and a telescopic top plate 9 is fixedly connected to the bottom of the telescopic spring 8. This can support the ventilation duct cover 7 and maintain the ventilation effect of the ventilation duct opening 16 and the sealing slope groove 17.
[0034] Reference Figure 1-3 A ventilation opening 16 is provided above the ventilation pipe 2, and a sealing ramp groove 17 is provided above the ventilation opening 16. This allows internal air to circulate with the outside through the pipe cover ventilation opening 10, dissipating the heat from the internal cables.
[0035] Reference Figure 1-4 A graphite expansion strip handle 14 is fixedly connected to the outer side of the graphite expansion strip 4, facilitating the replacement of the graphite expansion strip 4.
[0036] Reference Figure 1 A cable tray top plate clamping block 19 is fixedly connected to the inner side of the cable tray top plate 1, a cable tray bottom plate clamping block 20 is slidably connected to the inner side of the cable tray top plate clamping block 19, and a cable tray bottom plate 18 is fixedly connected to the inner side of the cable tray bottom plate clamping block 20. This maintains a tight connection between the cable tray top plate 1 and the cable tray bottom plate 18, while also allowing adjustment of the internal space of the cable tray top plate 1 and the cable tray bottom plate 18 to secure the internal cables.
[0037] Reference Figure 1-5 A sealing ramp block 12 is fixedly connected to the bottom of the top of the ventilation pipe cover 7. A ventilation pipe vent block 11 is fixedly connected to the bottom of the sealing ramp block 12. A sealing ramp groove 17 is slidably connected to the bottom of the sealing ramp block 12. A ventilation pipe vent 16 is fixedly connected to the outside of the ventilation pipe vent block 11. This can keep the interior in a sealed state, isolate oxygen, and achieve the effect of fire extinguishing.
[0038] The implementation principle of an embodiment of a fireproof cable tray in this application is as follows:
[0039] During equipment operation, when the internal cables are running, the internal air can circulate to the outside through the vent 10 on the cover and the vent 16 on the ventilation pipe, facilitating heat dissipation from the internal cables. When the cables catch fire, the heat will cause the graphite expansion strip 4 to expand. By being restrained by the lower fixing block 5 and the upper fixing block 3 of the graphite expansion strip, the ventilation pipe cover 7 moves downward. The telescopic top plate 9 compresses the telescopic spring 8, and the ventilation pipe vent block 11 fixed below the ventilation pipe cover 7 enters the ventilation pipe vent 16. The sealing ramp block 12 contacts the sealing ramp groove 17, making the interior sealed, thereby isolating oxygen from the outer wall and achieving a flame-retardant effect. When the fire is extinguished inside the equipment, the operator can pull out and replace the graphite expansion strip 4 through the graphite expansion strip handle 14 without disassembling or replacing the equipment, which can improve maintenance efficiency and save costs for the company.
[0040] 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 cable tray, comprising a main body cable tray top plate (1), characterized in that: A ventilation pipe (2) is fixedly connected above the top plate (1) of the cable tray. Graphite expansion strip upper fixing blocks (3) are fixedly connected to both sides of the ventilation pipe (2). Graphite expansion strip (4) is slidably connected below the graphite expansion strip upper fixing blocks (3). Graphite expansion strip lower fixing blocks (5) are slidably connected below the graphite expansion strip (4). A ventilation pipe cover (7) is fixedly connected to the outside of the graphite expansion strip lower fixing blocks (5). A graphite expansion strip replacement port (15) is opened on the outside of the ventilation pipe cover (7). Graphite expansion strip (4) is slidably connected to the inside of the graphite expansion strip replacement port (15).
2. The fireproof cable tray as described in claim 1, characterized in that: The ventilation pipe cover (7) has ventilation openings (10) at the front and back, and a dustproof net (13) is fixedly connected to the inner side of the ventilation opening (10).
3. A fireproof cable tray as described in claim 1, characterized in that: The ventilation pipe cover (7) has a top plate telescopic groove (6) below it. A telescopic spring (8) is fixedly connected to the top of the top plate telescopic groove (6), and a telescopic top plate (9) is fixedly connected to the bottom of the telescopic spring (8).
4. A fireproof cable tray as described in claim 1, characterized in that: A ventilation opening (16) is provided above the ventilation pipe (2), and a sealing ramp groove (17) is provided above the ventilation opening (16).
5. A fireproof cable tray as described in claim 1, characterized in that: A graphite expansion strip handle (14) is fixedly connected to the outside of the graphite expansion strip (4).
6. A fireproof cable tray as described in claim 1, characterized in that: The inner side of the top plate of the cable tray (1) is fixedly connected to the top plate of the cable tray (19), the inner side of the top plate of the cable tray (19) is slidably connected to the bottom plate of the cable tray (20), and the inner side of the bottom plate of the cable tray (20) is fixedly connected to the bottom plate of the cable tray (18).
7. A fireproof cable tray as described in claim 1, characterized in that: A sealing ramp block (12) is fixedly connected to the bottom of the top of the ventilation pipe cover (7), a ventilation pipe vent block (11) is fixedly connected to the bottom of the sealing ramp block (12), a sealing ramp groove (17) is slidably connected to the bottom of the sealing ramp block (12), and a ventilation pipe vent (16) is fixedly connected to the outside of the ventilation pipe vent block (11).