Fireproof cable bridge

By designing a movable modular splicing mechanism, a bottom isolation and protection mechanism, and a quick-connect sealing plate, the problem of the inability to quickly adjust the cable tray during installation was solved, enabling rapid installation of the cable tray, enhancing protection and sealing, and improving installation convenience and protective performance.

CN224097350UActive Publication Date: 2026-04-07NORTHEAST PLASTIC CABLE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-06
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

The lack of auxiliary installation structures in existing cable trays makes it difficult to quickly adjust to the installation position, reducing the ease of installation.

Method used

The design incorporates a movable modular splicing mechanism, a bottom isolation and protection mechanism, and a quick-connect sealing plate. Through components such as splicing strips, sliding guide blocks, clamping bolts, splicing threaded pipes, flame-retardant expansion rubber strips, and snap-fit ​​diagonal buckles, the cable tray can be installed quickly, and its protection and sealing performance can be enhanced.

Benefits of technology

It improves the convenience and ease of cable tray installation, enhances protective performance and structural strength, reduces damage to cables from open flames, and improves the sealing performance after installation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224097350U_ABST
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Abstract

The utility model discloses a fireproof cable bridge which comprises a bridge body, the top of the bridge body is connected with a sealing cover plate in a clamped mode, the two sides of the bottom face of the bridge body are connected with splicing battens in a clamped mode, and the middle of the top face of each splicing batten is evenly provided with installation long circular grooves at equal intervals. A splicing clamping strip is fixedly connected to the position, corresponding to one side of the bridge frame body, of one side of the top face of the splicing strip plate. According to the bridge frame, the long circular groove is formed to be matched with the splicing clamping strip to clamp the sliding guide block to the top of the splicing strip plate, and the position of the sliding guide block is adjusted after the clamping bolt is loosened; and the clamping bolts are tightened again after the sliding guide blocks slide to proper positions, so that the connection position of the bridge is adjusted, the bridge can adapt to the environment to be rapidly installed in the installation process by splicing the splicing threaded pipes and the corresponding connection screws, and the installation efficiency is improved. And thus, the mounting convenience and the use smoothness of the bridge are effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, specifically a fire-resistant cable tray. Background Technology

[0002] Cable trays are divided into trough type, tray type, ladder type, and mesh type structures. They are composed of supports, brackets and installation accessories. Cable trays inside buildings can be installed independently or laid on various buildings and pipe rack supports. They should reflect the characteristics of simple structure, beautiful appearance, flexible configuration and convenient maintenance. All parts must be galvanized. After galvanizing, the cable trays are installed in the open outside of buildings.

[0003] However, due to the lack of corresponding auxiliary installation structures, current cable trays cannot be quickly adjusted according to the installation position during installation, resulting in the cable trays not being able to fully adapt to the installation environment and reducing the ease of installation. Utility Model Content

[0004] This utility model provides a fire-resistant cable tray, which can effectively solve the problem mentioned in the background art that the current cable trays lack corresponding auxiliary installation structures during use, making it impossible to quickly adjust the cable trays according to the installation position during installation, thus making the cable trays unable to fully adapt to the installation environment and reducing the ease of installation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a fire-resistant cable tray, comprising a cable tray body, wherein a sealing cover plate is snapped onto the top of the cable tray body;

[0006] The bottom side of the main body of the cable tray is equipped with a movable combination and splicing mechanism;

[0007] The movable combination splicing mechanism includes splicing strips, mounting elongated grooves, splicing clamps, sliding guide blocks, clamping bolts, and splicing threaded pipes;

[0008] Both sides of the bottom surface of the cable tray body are fitted with splicing strips. The top surface of the splicing strips has evenly spaced elongated grooves. A splicing clip is fixedly connected to one side of the top surface of the splicing strip, corresponding to one side of the cable tray body. A sliding guide block is slidably fitted to one side of the splicing clip, corresponding to the top of the splicing strip. A clamping bolt is threadedly installed at the bottom of the sliding guide block, corresponding to the inner side of the elongated groove. A splicing threaded pipe is fixedly connected to the top center of the sliding guide block.

[0009] Preferably, the end of the sliding guide block is in close sliding contact with the inner side of the splicing strip, the bottom surface of the sliding guide block is in close sliding contact with the top surface of the splicing strip, and the top surface of the clamping bolt is in close contact with the bottom surface of the splicing strip.

[0010] Preferably, the bottom of the cable tray body is provided with a bottom isolation and protection mechanism;

[0011] The bottom isolation and protection mechanism includes an installation groove, a snap-fit ​​round strip, a connecting rubber strip, and a flame-retardant expansion rubber strip;

[0012] The bottom surface of the cable tray body is uniformly stamped with multiple irregularly shaped mounting grooves. A locking round strip is slidably engaged with the top of the inner side of the mounting groove. A connecting rubber strip is adhered to the middle of the bottom surface of the locking round strip. A flame-retardant expanding rubber strip is adhered to the middle of the bottom surface of the connecting rubber strip.

[0013] Preferably, the outer side of the snap-fit ​​round strip is in close sliding contact with the inner side of the mounting groove, and the top surface of the flame-retardant expanding rubber strip is in close contact with the bottom surface of the cable tray body.

[0014] Preferably, the side of the cable tray body is provided with a quick-connect sealing plate;

[0015] The quick-connect sealing plate includes a snap-fit ​​rectangular groove, a sealing side plate, a connecting sheet, and a snap-fit ​​angled buckle;

[0016] The cable tray body has equally spaced rectangular slots on both sides. The cable tray body has a sealing side plate. A connecting sheet is fixedly connected to one side of the sealing side plate at the end of the rectangular slot. A snap-fit ​​buckle is fixedly connected to the middle of the side of the connecting sheet at the inside of the rectangular slot.

[0017] Preferably, the side of the connecting sheet is tightly fitted to the side of the cable tray body, the outer side of the snap-fit ​​buckle is tightly fitted to the inner wall of the snap-fit ​​rectangular groove, and the edge of the sealing side plate is chamfered.

[0018] Compared with the prior art, the advantages of this utility model are: the structure of this utility model is scientific and reasonable, and it is safe and convenient to use.

[0019] 1. A movable combination splicing mechanism is set up. Each component is installed on the side of the cable tray body through splicing strips. The sliding guide block is snapped onto the top of the splicing strip by the installation of the elongated groove and the splicing clip. After loosening the clamping bolts, the position of the sliding guide block is adjusted. After the sliding guide block slides to the appropriate position, the clamping bolts are tightened again, thereby realizing the adjustment of the connection position of the cable tray. The splicing threaded pipe is spliced ​​with the corresponding connecting screw, so that the cable tray can be quickly installed according to the environment during the installation process, thus effectively improving the convenience of cable tray installation and the smoothness of use.

[0020] 2. A bottom isolation and protection mechanism is set up. By installing irregular grooves and snap-fit ​​round strips, each component is installed to the bottom of the cable tray body. Flame-retardant expansion rubber strips are tightly spliced ​​to the bottom of the cable tray body by connecting rubber strips. When the flame-retardant expansion rubber strips are exposed to open flames, they will expand. The expansion of the flame-retardant expansion rubber strips protects the bottom of the cable tray body, effectively reducing the damage of open flames to the cables inside the cable tray and further improving the protective performance of the cable tray.

[0021] 3. A quick-connect sealing plate is installed. An additional splicing structure is set at the end of the cable tray body through a snap-fit ​​rectangular groove. The snap-fit ​​buckle is connected to the side of the sealing side plate through a connecting sheet. The snap-fit ​​buckle and the snap-fit ​​rectangular groove interlock to make the side of the sealing side plate fit tightly with the side of the cable tray body, which further improves the sealing performance of the side of the cable tray body after installation and effectively improves the overall structural strength of the cable tray installation. Attached Figure Description

[0022] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0023] In the attached diagram:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the movable combination and splicing mechanism of this utility model;

[0026] Figure 3 This is a schematic diagram of the bottom isolation and protection mechanism of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the quick-connect sealing plate of this utility model;

[0028] Labels in the diagram: 1. Cable tray body; 2. Sealing cover;

[0029] 3. Movable combination splicing mechanism; 301. Splicing strip; 302. Mounting elongated groove; 303. Splicing clamp; 304. Sliding guide block; 305. Clamping bolt; 306. Splicing threaded pipe;

[0030] 4. Bottom isolation and protection mechanism; 401. Installation of irregular groove; 402. Snap-fit ​​round strip; 403. Connecting rubber strip; 404. Flame-retardant expansion rubber strip;

[0031] 5. Quick-connect sealing plate; 501. Snap-on rectangular groove; 502. Sealing side plate; 503. Connecting sheet; 504. Snap-on oblique buckle. Detailed Implementation

[0032] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] Example: Figure 1-4 As shown, this utility model provides a technical solution: a fire-resistant cable tray, including a cable tray body 1, with a sealing cover plate 2 snapped onto the top of the cable tray body 1;

[0034] A movable combination splicing mechanism 3 is provided on the bottom side of the main body of the cable tray 1;

[0035] The movable combination splicing mechanism 3 includes a splicing strip 301, an mounting elongated groove 302, a splicing clamping strip 303, a sliding guide block 304, a clamping bolt 305, and a splicing threaded pipe 306;

[0036] Both sides of the bottom surface of the cable tray body 1 are fitted with splicing strips 301. Equally spaced elongated grooves 302 are evenly spaced on the top surface of each splicing strip 301. A splicing clip 303 is fixedly connected to one side of the top surface of each splicing strip 301, corresponding to one side of the cable tray body 1. A sliding guide block 304 is slidably engaged with one side of the clip 303, corresponding to the top of the splicing strip 301. A clamping bolt 305 is threadedly installed at the bottom of the sliding guide block 304, corresponding to the inner side of the elongated groove 302. A splicing threaded pipe 306 is fixedly connected to the top center of the sliding guide block 304. The end of the sliding guide block 304 and the inner side of the clip 303 are tightly slidably fitted together, as are the bottom surfaces of the sliding guide block 304 and the top surfaces of the splicing strip 301. The clamping bolt 305 is tightly fitted to the bottom surface of the splicing strip 301. The components are installed on the side of the cable tray body 1 through the splicing strip 301. The sliding guide block 304 is snapped onto the top of the splicing strip 301 by the installation elongated groove 302 and the splicing clip 303. After loosening the clamping bolt 305, the position of the sliding guide block 304 is adjusted. After the sliding guide block 304 slides to the appropriate position, the clamping bolt 305 is tightened again, thereby realizing the adjustment of the connection position of the cable tray. The splicing threaded pipe 306 is spliced ​​with the corresponding connecting screw, so that the cable tray can be quickly installed according to the environment during the installation process, thus effectively improving the convenience of cable tray installation and the smoothness of use.

[0037] The bottom of the cable tray body 1 is equipped with a bottom isolation and protection mechanism 4;

[0038] The bottom isolation and protection mechanism 4 includes an installation groove 401, a snap-fit ​​round strip 402, a connecting rubber strip 403, and a flame-retardant expansion rubber strip 404;

[0039] Multiple mounting grooves 401 are uniformly stamped on the bottom surface of the cable tray body 1. A snap-fit ​​round strip 402 is slidably snapped into the top of the inner side of the mounting groove 401. A connecting strip 403 is bonded to the middle of the bottom surface of the snap-fit ​​round strip 402. A flame-retardant expanding rubber strip 404 is bonded to the middle of the bottom surface of the connecting strip 403. The outer side of the snap-fit ​​round strip 402 and the inner side of the mounting groove 401 are tightly slidably fitted together. The top surface of the flame-retardant expanding rubber strip 404 is tightly fitted to the bottom surface of the cable tray body 1. The components are installed to the bottom of the cable tray body 1 by using the mounting grooves 401 and the snap-fit ​​round strip 402. The flame-retardant expanding rubber strip 404 is tightly spliced ​​to the bottom of the cable tray body 1 by the connecting strip 403. When the flame-retardant expanding rubber strip 404 is exposed to an open flame, it will expand. The expansion of the flame-retardant expanding rubber strip 404 protects the bottom of the cable tray body 1, effectively reducing the damage of open flame to the internal cables of the cable tray and further improving the protective performance of the cable tray.

[0040] The cable tray body 1 is equipped with a quick-connect sealing plate 5 on its side;

[0041] The quick-connect sealing plate 5 includes a snap-fit ​​rectangular groove 501, a sealing side plate 502, a connecting sheet 503, and a snap-fit ​​oblique buckle 504;

[0042] The cable tray body 1 has equally spaced rectangular slots 501 on both ends. A sealing side plate 502 is provided on the side of the cable tray body 1. A connecting sheet 503 is fixedly connected to one side of the sealing side plate 502 at the end position corresponding to the rectangular slot 501. A snap-fit ​​buckle 504 is fixedly connected to the middle of the side of the connecting sheet 503 at the inner position corresponding to the rectangular slot 501. The side of the connecting sheet 503 is tightly fitted to the side of the cable tray body 1, and the outer side of the snap-fit ​​buckle 504 is tightly fitted to the inner wall of the rectangular slot 501. The sealing side plate 502 has a chamfered edge and an additional splicing structure at the end of the cable tray body 1 via a snap-fit ​​rectangular groove 501. The snap-fit ​​buckle 504 is connected to the side of the sealing side plate 502 via a connecting sheet 503. The snap-fit ​​buckle 504 and the snap-fit ​​rectangular groove 501 interlock with each other, so that the side of the sealing side plate 502 fits tightly with the side of the cable tray body 1, which further improves the sealing performance of the side of the cable tray body 1 after installation and effectively improves the overall structural strength of the cable tray installation.

[0043] The working principle and usage process of this utility model are as follows: In practical applications, when it is necessary to install and use the cable tray, the top of the cable tray body 1 can be sealed by the sealing cover plate 2. The components are installed on the side of the cable tray body 1 by the splicing strip plate 301. Then, the sliding guide block 304 is snapped onto the top of the splicing strip plate 301 by the installation elongated groove 302 and the splicing clip 303. After loosening the clamping bolt 305, the position of the sliding guide block 304 is adjusted. After the sliding guide block 304 slides to the appropriate position, the clamping bolt 305 is tightened again, thereby realizing the adjustment of the connection position of the cable tray.

[0044] Then, the splicing threaded pipe 306 is spliced ​​with the corresponding connecting screw, so that the cable tray can be quickly installed in accordance with the environment during the installation process, thereby effectively improving the convenience of cable tray installation and the smoothness of use.

[0045] When protection of the bottom of the cable tray is required, the components are installed to the bottom of the cable tray body 1 by using the shaped groove 401 and the snap-fit ​​round strip 402. The flame-retardant expansion rubber strip 404 is tightly spliced ​​to the bottom of the cable tray body 1 by the connecting rubber strip 403. When the flame-retardant expansion rubber strip 404 is exposed to open flame, it will expand. The expansion of the flame-retardant expansion rubber strip 404 will protect the bottom of the cable tray body 1, effectively reducing the damage of open flame to the internal cables of the cable tray and further improving the protective performance of the cable tray.

[0046] When it is necessary to protect the side of the splice of the cable tray body 1, an additional splicing structure is set at the end of the cable tray body 1 by means of the snap-fit ​​rectangular groove 501. Then, the snap-fit ​​diagonal buckle 504 is connected to the side of the sealing side plate 502 by means of the connecting thin plate 503. Through the mutual snap-fit ​​between the snap-fit ​​diagonal buckle 504 and the snap-fit ​​rectangular groove 501, the side of the sealing side plate 502 is tightly fitted with the side of the cable tray body 1, which further improves the sealing performance of the side of the cable tray body 1 after installation and effectively improves the overall structural strength of the cable tray installation.

[0047] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A fire-resistant cable tray, comprising a tray body (1), characterized in that: The top of the cable tray body (1) is fitted with a sealing cover plate (2); The cable tray body (1) is provided with a movable combination splicing mechanism (3) at the bottom side of its main body (1); The movable combination splicing mechanism (3) includes splicing strips (301), mounting elongated grooves (302), splicing clips (303), sliding guide blocks (304), clamping bolts (305), and splicing threaded pipes (306); The cable tray body (1) has splicing strips (301) snapped onto both sides of its bottom surface. The splicing strips (301) have evenly spaced mounting elongated grooves (302) in the middle of their top surfaces. A splicing clip (303) is fixedly connected to one side of the top surface of the splicing strips (301) at a position corresponding to one side of the cable tray body (1). A sliding guide block (304) is slidably snapped onto one side of the splicing clip (303) at a position corresponding to the top of the splicing strips (301). A clamping bolt (305) is threadedly installed at the bottom of the sliding guide block (304) at a position corresponding to the inner side of the mounting elongated groove (302). A splicing threaded pipe (306) is fixedly connected to the middle of the top of the sliding guide block (304).

2. The fire-resistant cable tray according to claim 1, characterized in that, The end of the sliding guide block (304) is in close sliding contact with the inner side of the splicing strip (303), the bottom surface of the sliding guide block (304) is in close sliding contact with the top surface of the splicing strip (301), and the top surface of the clamping bolt (305) is in close contact with the bottom surface of the splicing strip (301).

3. The fire-resistant cable tray according to claim 1, characterized in that, The bottom of the cable tray body (1) is provided with a bottom isolation and protection mechanism (4); The bottom isolation and protection mechanism (4) includes an installation groove (401), a snap-fit ​​round strip (402), a connecting rubber strip (403), and a flame-retardant expansion rubber strip (404); The bottom surface of the cable tray body (1) is uniformly stamped with multiple mounting grooves (401). A snap-fit ​​round strip (402) is slidably snapped into the top of the inner side of the mounting groove (401). A connecting rubber strip (403) is bonded to the middle of the bottom surface of the snap-fit ​​round strip (402). A flame-retardant expanding rubber strip (404) is bonded to the middle of the bottom surface of the connecting rubber strip (403).

4. A fire-resistant cable tray according to claim 3, characterized in that, The outer side of the snap-fit ​​round strip (402) and the inner side of the mounting groove (401) are tightly slidably fitted together, and the top surface of the flame-retardant expanding rubber strip (404) is tightly fitted together with the bottom surface of the cable tray body (1).

5. A fire-resistant cable tray according to claim 1, characterized in that, The cable tray body (1) is provided with a quick-connect sealing plate (5) on its side; The quick-connect sealing plate (5) includes a snap-fit ​​rectangular groove (501), a sealing side plate (502), a connecting sheet (503), and a snap-fit ​​oblique buckle (504); The cable tray body (1) has equally spaced rectangular slots (501) on both ends. The cable tray body (1) has a sealing side plate (502) on its side. A connecting sheet (503) is fixedly connected to one side of the sealing side plate (502) at the end position of the rectangular slot (501). A snap fastener (504) is fixedly connected to the middle of the side of the connecting sheet (503) at the position inside the rectangular slot (501).

6. A fire-resistant cable tray according to claim 5, characterized in that, The side of the connecting sheet (503) is tightly fitted to the side of the cable tray body (1), the outer side of the snap-fit ​​buckle (504) is tightly fitted to the inner wall of the snap-fit ​​rectangular groove (501), and the edge of the sealing side plate (502) is chamfered.