Fireproof cable bridge convenient to lay and maintain

Abstract

The utility model relates to cable bridge technical field, concretely relates to a fireproof cable bridge convenient to lay and maintain, including bridge assembly, including bridge body, the bridge body top sliding connection has the cover, ventilation component sets up in bridge body, including ventilation piece, the ventilation piece includes baffle, baffle is located bridge body one side. Under normal use baffle opens, the heat dissipation of vent hole is damp, guarantees cable operation environment stability, when the fire baffle is closed automatically, blocks the fire smoke flow, reduces cable burning, prolongs insulating layer resistance time, improves bridge protection, baffle opens automatically after the fire, the vent hole restores the function of damp, avoids the accumulation of moisture, need not manual operation, improves use and maintenance efficiency. When the fire can fasten the connection of bridge, strengthens bridge structure stability, avoids high temperature and leads to the loose connection, prevents bridge collapse or displacement, guarantees cable laying integrity.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically to a fireproof cable tray that is easy to lay and maintain. Background Technology

[0002] Fire-resistant cable trays are cable laying carriers designed with fire-resistant materials, based on conventional cable trays. They possess flame-retardant and fire-resistant properties, preventing the spread of fire and delaying the burning of cables by flames when laying cables in building, industrial, and other scenarios. They ensure short-term uninterrupted operation of cable lines in the event of a fire, while providing physical protection for cables. They are suitable for places with high fire protection requirements, reducing the impact of fire on electrical systems and improving the safety of cable laying.

[0003] In the prior art, a high-strength, aging-resistant precision cable tray with patent application number CN202420777505.8 includes a cable tray body. A limiting plate is slidably connected to the upper inner wall of the cable tray body. A limiting block one is fixedly connected to the upper inner wall of the limiting plate. A limiting block two is elastically connected to the upper outer wall of the left side of the limiting block one via a spring one. A limiting block three is elastically connected to the upper outer wall of the limiting block two via a spring two. An insert block one is elastically connected to the upper inner wall of the limiting plate via a spring three. A locking block is elastically connected to the front inner wall of the limiting plate via a torsion spring. In this utility model, by placing the cable in the limiting block one, the limiting block two presses down to fix the cable. When placing a new cable, rotating the locking block releases the limiting block three and removes it. After placing the new cable, releasing the locking block fixes the limiting block three and simultaneously fixes the cable. Fixing the new cable does not cause the original cable to move. The cable tray has ventilation holes on one side to expel moisture from the tray and reduce the risk of the cables getting damp. In the event of a fire, the open ventilation holes on one side of the cable tray can become a channel for the flow of fire and high-temperature smoke, which can accelerate the spread of the fire into the tray and along the cable, allowing the flames to contact and burn the cables more quickly, exacerbating the damage to the cable insulation and even igniting the cables. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, this utility model provides a fireproof cable tray that is easy to lay and maintain. It can effectively solve the problem that when a fire occurs, the open ventilation hole on one side of the cable tray becomes a channel for the flow of fire and high-temperature smoke, which will accelerate the spread of fire into the cable tray and along the line.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a fireproof cable tray that is easy to lay and maintain, including a cable tray assembly, including a cable tray body, and a cover is slidably connected to the top of the cable tray body; A ventilation assembly is disposed on the cable tray body and includes a ventilation component. The ventilation component includes a baffle located on one side of the cable tray body. A locking block is fixed on one side of the cable tray body, and a locking pin is provided above the locking block.

[0006] Furthermore, the ventilation assembly also includes a drive component, which includes a support ring fixed to one side of the cable tray body, and a connecting rod hinged to one side of the baffle.

[0007] Furthermore, a drive column is fixed to one side of the baffle, and a push rod is hinged to one side of the drive column. The push rod is slidably connected to the inner wall of the cable tray body.

[0008] Furthermore, a movable plate is movably connected to one end of the push rod, and a connecting strip is fixed to one side of the movable plate.

[0009] Furthermore, an expansion block is fixed to one end of the connecting strip, a support sleeve is fitted on the outside of the expansion block, the support sleeve is fixed to the inner wall of the cable tray body, and a heat collection cover is fixed to the bottom of the support sleeve.

[0010] Furthermore, the ventilation assembly also includes a connector, which includes a retaining frame fitted around the outside of the retaining block. A pressing rod is fixed to one side of the retaining block, and the pressing rod is located on the side of the locking pin.

[0011] Furthermore, a plug rod is movably connected to one side of the locking pin, the plug rod is fixed to one side of the cable tray body, and a spring is fixed to one side of the locking pin, with one end of the spring fixed to one side of the cable tray body.

[0012] Furthermore, a movable rod is fixed to one end of the locking pin, and a rotating rod is provided on one side of the movable rod, and the rotating rod is fixed to the baffle.

[0013] Compared with the known prior art, the technical solution provided by this utility model has the following beneficial effects: under normal use, the lower baffle is open, the ventilation hole dissipates heat and removes moisture, ensuring a stable operating environment for the cable; in the event of a fire, the baffle automatically closes, blocking the flow of fire and smoke, reducing cable burning, extending the insulation layer's tolerance time, and improving the cable tray's protective performance; after a fire, the baffle automatically opens, the ventilation hole restores its moisture removal function, preventing moisture accumulation, eliminating the need for manual operation, and improving the efficiency of use and maintenance.

[0014] In the event of a fire, the connections of the cable tray can be tightened to enhance the structural stability of the cable tray, prevent the connections from loosening due to high temperatures, prevent the cable tray from collapsing or shifting, and ensure the integrity of the cable laying. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the heat collection cover of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 This is a schematic cross-sectional view of the card frame of this utility model; Figure 5 This is a schematic cross-sectional view of the support sleeve of this utility model; Figure 6 This is a schematic diagram of the baffle of this utility model; Figure 7 For the present utility model Figure 6 A magnified view of a portion of point B in the middle.

[0017] The labels in the diagram represent: 1. Cable tray assembly; 11. Cable tray body; 12. Cover; 2. Ventilation assembly; 21. Ventilation component; 211. Baffle; 212. Locking block; 213. Locking pin; 22. Driving component; 221. Support ring; 222. Connecting rod; 223. Driving column; 224. Push rod; 225. Movable plate; 226. Connecting strip; 227. Expansion block; 228. Support sleeve; 229. Heat collector cover; 23. Connecting component; 231. Frame; 232. Pressing rod; 233. Insert rod; 234. Spring; 235. Movable rod; 236. Rotating rod. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] Example: A fire-resistant cable tray that is easy to lay and maintain, as shown in the attached document. Figure 1-Appendix Figure 7 The cable tray assembly 1 includes a cable tray body 11, and a cover 12 is slidably connected to the top of the cable tray body 11. The cable tray body 11 serves as the core load-bearing structure for cable laying, used to centrally store and organize cables, providing a stable installation and protection space for them. It also possesses flame-retardant and fire-resistant properties, ensuring the safe operation of cables and acting as the basic carrier for cable line laying. The cover 12 forms a closed protection for the cables inside the cable tray body 11, preventing dust, debris from entering or external collisions from damaging the cables. At the same time, it can enhance the fireproof, dustproof, and corrosion-resistant performance of the cable tray, and the sliding design makes it easy to open, providing convenience for cable laying, inspection, and maintenance.

[0021] Ventilation component 2 is disposed on cable tray body 11 and includes ventilation component 21. Ventilation component 21 includes baffle 211. Baffle 211 is located on one side of cable tray body 11. A locking block 212 is fixed on one side of cable tray body 11. A locking pin 213 is provided above the locking block 212.

[0022] In the event of a fire, the baffle 211 can be closed to block the flow of fire and smoke, reduce cable burning, extend the insulation layer's withstand time, and improve the protection of the cable tray body 11. The locking block 212 allows the cable tray body 11 to be quickly spliced ​​with another cable tray body 11. When the baffle 211 is closed during a fire, it can move the locking pin 213. The movement of the locking pin 213 can limit the locking block 212, thereby preventing the connection of the cable tray body 11 from becoming loose. When the fire stops, the baffle 211 automatically opens, causing the locking pin 213 to return to its original position and releasing the limitation on the locking block 212. At this time, the operator can quickly release the limitation on the cable tray body 11 by moving the locking block 212, and then the cable tray body 11 can be removed for easy maintenance and installation.

[0023] Specifically, the ventilation assembly 2 also includes a drive component 22, which includes a support ring 221. The support ring 221 is fixed to one side of the cable tray body 11, and a connecting rod 222 is hinged to one side of the baffle 211.

[0024] The support ring 221 is fixed to the inner wall of the ventilation hole. There are two baffles 211, both of which are hinged to the inner wall of the support ring 221. The two baffles 211 can be connected by the connecting rod 222. When the baffle 211 moves, it can drive the connecting rod 222 to move. The movement of the connecting rod 222 can drive the other baffle 211 to move, so that the two baffles 211 can move synchronously, thereby closing or opening the ventilation hole.

[0025] Furthermore, a drive column 223 is fixed on one side of the baffle 211, and a push rod 224 is hinged on one side of the drive column 223. The push rod 224 is slidably connected to the inner wall of the cable tray body 11.

[0026] The drive column 223 is rotatably connected to one side of the support ring 221. In the event of a fire, the push rod 224 can be moved. At this time, the movement of the push rod 224 can drive the drive column 223 to move. Then, the movement of the drive column 223 can drive the baffle 211 to rotate, thereby closing the baffle 211 to seal the ventilation hole.

[0027] Preferably, one end of the push rod 224 is movably connected to a movable plate 225, and a connecting strip 226 is fixed on one side of the movable plate 225.

[0028] An extrusion strip is fixed at one end of the push rod 224. An extrusion groove corresponding to the extrusion strip is provided on the movable plate 225. The movable plate 225 can be moved by the movement of the connecting strip 226. The movement of the movable plate 225 causes the extrusion groove to extrude the extrusion strip. Then, the movement of the extrusion strip can drive the push rod 224 to move, thereby closing the baffle 211.

[0029] It should be noted that an expansion block 227 is fixed at one end of the connecting strip 226, and a support sleeve 228 is sleeved on the outside of the expansion block 227. The support sleeve 228 is fixed to the inner wall of the bridge body 11, and a heat collection cover 229 is fixed at the bottom of the support sleeve 228.

[0030] The middle section of the expansion block 227 is rotatably connected to the inner wall of the support sleeve 228. The heat collection cover 229 is inserted into the bottom of the cable tray body 11 and communicates with the cable tray body 11. A filter screen is provided at the bottom of the heat collection cover 229 to filter out external debris and prevent it from entering the cable tray body 11. When a fire occurs, heat is generated and transported to the support sleeve 228 through the heat collection cover 229. The connecting strip 226 is movably connected to one side of the support sleeve 228. The expansion block 227 can move by means of thermal expansion and contraction. Since the middle part of the expansion block 227 is fixed to the support sleeve 228, the expansion block 227 can move to both ends of the support sleeve 228 when heated. The movement of the expansion block 227 can drive the connecting strip 226 to move. The movement of the connecting strip 226 can drive the movable plate 225 to move, thereby closing the baffle 211. The support sleeve 228 is used to support the expansion block 227 and prevent it from shifting during movement.

[0031] Furthermore, the ventilation assembly 2 also includes a connector 23, which includes a retaining frame 231. The retaining frame 231 is sleeved on the outside of the retaining block 212. A pressing rod 232 is fixed on one side of the retaining block 212, and the pressing rod 232 is located on the side of the locking pin 213.

[0032] The compression rod 232 is movably connected to the locking block 212. A corresponding slot for the locking block 212 is provided in the locking frame 231. The locking block 212 is hollow in the middle and is an elastic element with elasticity. The structure of the locking block 212 matches the slot in the locking frame 231. The locking block 212 can be embedded in the corresponding slot of the locking frame 231, providing a preliminary positioning and connection basis for the two cable tray bodies 11. When it is necessary to disconnect the connection of the cable tray body 11, the locking block 212 is moved by the compression rod 232. At this time, it can be separated from the slot, thereby releasing the limit on the cable tray body 11 and disconnecting the connection of the cable tray body 11. Then, the compression rod 232 is released, and the locking block 212 returns to its original position by its own elasticity for the next use. The locking block 212 and the locking frame 231 are fixed at both ends of the cable tray body 11, which facilitates the connection between the cable tray bodies 11.

[0033] A locking groove corresponding to the locking pin 213 is provided on one side of the compression rod 232. In the event of a fire, the locking pin 213 can enter the locking groove to limit the compression rod 232, thereby preventing the block 212 from moving.

[0034] Specifically, a plug rod 233 is movably connected to one side of the locking pin 213. The plug rod 233 is fixed to one side of the cable tray body 11. A spring 234 is fixed to one side of the locking pin 213. One end of the spring 234 is fixed to one side of the cable tray body 11.

[0035] When the locking pin 213 moves, it can move on the insert rod 233. The insert rod 233 can support the locking pin 213 and prevent it from shifting during movement. When the locking pin 213 moves and limits the pressing rod 232, a pressing force can be applied to the spring 234. When the fire stops and the temperature returns to normal, the expansion block 227 can rebound elastically, which will open the baffle 211. After the baffle 211 is opened, the spring 234 can use the rebound force to drive the locking pin 213 to separate from the locking groove, thereby releasing the limitation on the pressing rod 232.

[0036] Preferably, a movable rod 235 is fixed to one end of the locking pin 213, and a rotating rod 236 is provided on one side of the movable rod 235. The rotating rod 236 is fixed to the baffle 211.

[0037] When the fire baffle 211 closes, it can drive the rotating rod 236 to rotate. The rotation of the rotating rod 236 can squeeze the movable rod 235. The movement of the movable rod 235 can drive the locking pin 213 to move and limit the squeezing rod 232. When the baffle 211 returns to its original position and opens, the rotating rod 236 can release the squeezing of the movable rod 235. Then the movable rod 235 can be driven by the spring 234 to separate the locking pin 213 from the locking groove.

[0038] When it is necessary to lay cables and install the fireproof cable tray body 11, the cable tray body 11 is first connected to the frame 231 of another cable tray body 11 through the locking block 212. The locking block 212 is embedded in the slot of the frame 231 to complete the initial splicing and positioning between the cable trays. No complicated tools are required, which improves the laying efficiency.

[0039] Then, slide the cover 12 to open the cable tray body 11, neatly place the cable into the cable tray body 11, and close the cover 12 to form a closed protection for the cable, preventing dust, debris from entering or external force from damaging the cable. Under normal use, the baffle 211 remains open, and the ventilation hole on one side of the cable tray body 11 enables heat dissipation and moisture removal, ensuring a stable operating environment for the cable and reducing the risk of moisture.

[0040] When a fire occurs, high-temperature smoke enters the support sleeve 228 through the heat collection hood 229. The filter screen at the bottom of the heat collection hood 229 blocks debris from entering. After being heated, the expansion block 227 expands and extends to both ends, driving the connecting strip 226 to move. The connecting strip 226 drives the movable plate 225 to move. The movable plate 225 squeezes the extrusion strip of the push rod 224 through the extrusion groove, pushing the push rod 224 to slide.

[0041] The push rod 224 drives the drive column 223 to rotate, and the drive column 223 drives the baffle 211 on one side to rotate. The baffle 211 drives the baffle 211 on the other side to rotate synchronously through the connecting rod 222 until the two baffles 211 are completely closed, blocking the ventilation hole, preventing fire and high-temperature smoke from flowing through the ventilation hole, reducing cable burning, and extending the insulation layer's withstand time.

[0042] During the closing process of the baffle 211, the rotating rod 236 is driven to rotate. The rotating rod 236 presses the movable rod 235. The movable rod 235 drives the locking pin 213 to slide along the insertion rod 233 and compress the spring 234. The locking pin 213 is inserted into the locking groove of the pressing rod 232, which fixes the connection between the locking block 212 and the locking frame 231, enhances the stability of the cable tray structure, and avoids the connection from loosening or the cable tray from collapsing and shifting due to high temperature.

[0043] After the fire is extinguished, the ambient temperature drops, the expansion block 227 contracts and resets, causing the connecting strip 226, the movable plate 225, and the push rod 224 to move in the opposite direction. The baffle 211 opens automatically, the ventilation hole resumes its heat dissipation and moisture removal function to prevent moisture accumulation. At the same time, the spring 234 rebounds and causes the locking pin 213 to disengage from the locking groove, releasing the limit on the pressing rod 232.

[0044] When maintenance or cable replacement is required, the compression rod 232 is squeezed, causing the locking block 212 to retract and disengage from the slot of the locking frame 231, thus releasing the splicing and fixing between the cable trays. The cable maintenance operation can then be performed by sliding the cover 12. After maintenance is completed, the cable trays are reassembled and the cables are placed according to the above steps, eliminating the need for complicated disassembly procedures and improving the convenience of maintenance.

[0045] In summary, under normal use, the lower baffle 211 is open, and the ventilation holes dissipate heat and remove moisture, ensuring a stable operating environment for the cables. In the event of a fire, the baffle 211 automatically closes, blocking the flow of fire and smoke, reducing cable burning, extending the insulation layer's withstand time, and improving the protection of the cable tray body 11. After a fire, the baffle 211 automatically opens, and the ventilation holes resume their moisture removal function, preventing moisture accumulation. No manual operation is required, improving the efficiency of use and maintenance.

[0046] In the event of a fire, the connections of the cable tray body 11 can be tightened to enhance the structural stability of the cable tray body 11, prevent the connections from loosening due to high temperatures, prevent the cable tray body 11 from collapsing or shifting, and ensure the integrity of the cable laying.

[0047] 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 will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fire-resistant cable tray that is easy to lay and maintain, characterized in that, The cable tray assembly (1) includes a cable tray body (11) with a cover (12) slidably connected to the top of the cable tray body (11). A ventilation component (2) is disposed on the cable tray body (11) and includes a ventilation element (21). The ventilation element (21) includes a baffle (211). The baffle (211) is located on one side of the cable tray body (11). A locking block (212) is fixed on one side of the cable tray body (11). A locking pin (213) is provided above the locking block (212).

2. The fire-resistant cable tray for easy installation and maintenance according to claim 1, characterized in that, The ventilation assembly (2) also includes a drive component (22), which includes a support ring (221). The support ring (221) is fixed to one side of the cable tray body (11), and a connecting rod (222) is hinged to one side of the baffle (211).

3. A fire-resistant cable tray for easy installation and maintenance according to claim 2, characterized in that, A drive column (223) is fixed on one side of the baffle (211), and a push rod (224) is hinged on one side of the drive column (223). The push rod (224) is slidably connected to the inner wall of the bridge frame body (11).

4. A fire-resistant cable tray for easy installation and maintenance according to claim 3, characterized in that, One end of the push rod (224) is movably connected to a movable plate (225), and a connecting strip (226) is fixed on one side of the movable plate (225).

5. A fire-resistant cable tray for easy installation and maintenance according to claim 4, characterized in that, One end of the connecting strip (226) is fixed with an expansion block (227), and a support sleeve (228) is sleeved on the outside of the expansion block (227). The support sleeve (228) is fixed to the inner wall of the bridge body (11), and a heat collection cover (229) is fixed at the bottom of the support sleeve (228).

6. A fire-resistant cable tray for easy installation and maintenance according to claim 5, characterized in that, The ventilation assembly (2) also includes a connector (23), which includes a frame (231) sleeved on the outside of the block (212). A pressing rod (232) is fixed on one side of the block (212), and the pressing rod (232) is located on the side of the locking pin (213).

7. A fire-resistant cable tray for easy installation and maintenance according to claim 6, characterized in that, A plug rod (233) is movably connected to one side of the locking pin (213). The plug rod (233) is fixed to one side of the cable tray body (11). A spring (234) is fixed to one side of the locking pin (213). One end of the spring (234) is fixed to one side of the cable tray body (11).

8. A fire-resistant cable tray for easy installation and maintenance according to claim 7, characterized in that, One end of the locking pin (213) is fixed with a movable rod (235), and a rotating rod (236) is provided on one side of the movable rod (235). The rotating rod (236) is fixed to the baffle (211).

Images