Fireproof cable bridge

Abstract

The utility model discloses a fire-resistant cable bridge which comprises a bridge shell, and the bridge shell comprises a base, a heat insulation layer and a protection layer. According to the cable bridge, the bridge shell is composed of the base, the heat insulation layer and the protection layer, the heat insulation layer can well achieve heat insulation, the fire-resistant effect of the cable bridge is improved, the base and the protection layer are matched to guarantee the overall structural strength of the cable bridge, cables are placed in the bridge shell and separated through the partition plates, and the cable is prevented from being damaged. After the top cover is fixed to the top of the bridge shell, the positioning plate is just combined with the middles of the multiple sets of partition plates, the screw is driven to rotate through the rotating block, and the bottom of the screw is rotationally matched with the positioning plate while the screw is screwed with the top cover, so that the positioning plate is pushed to move downwards until the positioning plate abuts against a cable. Through the staggered positioning plates, positioning of multiple groups of cables can be completed at the same time, and in the positioning process, the cables do not generate offset influencing positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of cable trays, in particular to a fire-resistant cable tray. Background Art

[0002] Cable trays are divided into trough type, tray type, ladder type, grid type and other structures, and are composed of brackets, cantilever arms and installation accessories, etc. The cable trays in buildings can be erected independently or laid on various building (structure) buildings and pipe gallery brackets, and should reflect the characteristics of simple structure, beautiful shape, flexible configuration and convenient maintenance. All parts need to be galvanized. The cable trays installed outdoors of buildings.

[0003] Chinese Patent Publication No. CN214674027U, publication time 20211109, discloses a new type of dust-proof and fire-resistant cable tray, including a tray body. A heat insulation board is fixedly connected to the outer wall of the tray body, and a protection box is fixedly connected to the side of the heat insulation board away from the tray body. A plurality of symmetrically distributed support rods are fixedly connected to the upper surface of the inner part of the tray body. A support plate is fixedly connected to the upper surfaces of the two support rods. Limit blocks are fixedly connected to both sides of the upper surfaces of the plurality of support plates. A plurality of partition plates are fixedly connected to the upper surfaces of the plurality of support plates. By arranging a heat insulation board outside the cable tray, the heat insulation board can achieve good heat insulation.

[0004] For example, in the above-mentioned existing fire-resistant cable trays, the cables are placed on the support plates inside the trays, and then the top plates are covered. By rotating the adjustment knob to drive the threaded rod to rotate, the positioning plate is pressed down by the threaded rod and can coincide with the support plate to fix the cables. In the specific implementation process, due to the relatively soft texture and certain elasticity of the cables themselves, the cables are prone to deviation during the process of gradually completing the alignment of the positioning plates arranged opposite to each other, affecting the positioning effect. Therefore, it is urgent to propose a corresponding fire-resistant cable tray to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fire-resistant cable tray to solve the above problems.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A fire-resistant cable tray includes a tray housing. The tray housing includes a base, a heat insulation layer and a protection layer. A partition board is fixedly installed at the top of the horizontal end of the tray housing. A positioning plate is slidably connected to the middle of a plurality of the partition boards, and the positioning plate is distributed in a staggered manner with respect to the plurality of partition boards. A top cover is fixedly installed at the top of the tray housing, and a pushing component for vertically pushing the positioning plate is arranged inside the top cover.

[0008] Preferably, the pushing component includes a screw rod, a rotating block is fixedly installed at the top of the screw rod, the screw rod is in threaded connection with the inner wall of the top cover, and the bottom of the screw rod is rotatably connected to the top of the positioning plate.

[0009] Preferably, an outer seat is fixedly installed on the top of the top cover, the inner wall of the outer seat is slidably connected to the outer wall of the screw rod, and a limiting portion for axially limiting the screw rod is provided inside the outer seat.

[0010] Preferably, the limiting portion includes a rubber block, the rubber block is in interference fit with the inside of the outer seat, and the inner wall of the rubber block abuts against the outer wall of the screw rod.

[0011] Preferably, the top cover is fixedly connected to the top of the vertical end of the cable bridge housing through a fastening rod, and a mounting plate is fixedly installed on the outer wall of the cable bridge housing.

[0012] Preferably, a bottom strip is fixedly installed at the bottom of the top cover, and the bottom strip is inserted into the top of the vertical end of the cable bridge housing through a coupling groove.

[0013] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0014] 1. In this application, the cable bridge housing is composed of a base, a heat insulation layer and a protective layer. The heat insulation board can achieve good heat insulation, so that the fire resistance effect of the cable bridge is improved. The cooperation of the base and the protective layer ensures the overall structural strength of the cable bridge. After placing the cables into the cable bridge housing and separating them by partitions, and fixing the top cover to the top of the cable bridge housing, the positioning plate is exactly combined in the middle of multiple partitions. By driving the screw rod to rotate through the rotating block, while the screw rod is in threaded connection with the top cover, its bottom is rotatably matched with the positioning plate, so as to push the positioning plate downward until the positioning plate abuts against the cables. The positioning of multiple groups of cables can be completed simultaneously through the staggeredly arranged positioning plates, and during the positioning process, the cables will not produce offsets that affect positioning.

[0015] 2. In this application, after the displacement of the positioning plate is completed through the screw rod, the rubber block is inserted into the outer seat, and the interference fit method ensures the stable position of the rubber block itself. The rubber block abuts against the outer wall of the screw rod, so that the self-deflection of the screw rod can be restricted through the frictional force, thereby improving the stability of the use of the fire-resistant cable bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shows the overall structural schematic diagram provided by the embodiment of the present utility model;

[0017] Figure 2 Shows the schematic diagram of the partition structure provided by the embodiment of the present utility model;

[0018] Figure 3Shows a schematic structural diagram of a positioning plate provided according to an embodiment of the present utility model;

[0019] Figure 4 Shows a schematic structural diagram of a rubber block provided according to an embodiment of the present utility model.

[0020] Legend description:

[0021] 1. Bridge shell; 101. Base; 102. Heat insulation layer; 103. Protection layer; 2. Mounting plate; 3. Top cover; 4. Rotating block; 5. Outer seat; 6. Rubber block; 7. Partition board; 8. Positioning plate; 9. Combining groove; 10. Bottom strip; 11. Screw; 12. Tightening rod. Specific implementation manners

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , the present utility model provides a technical solution:

[0024] A fire-resistant cable bridge includes a bridge shell 1, the bridge shell 1 includes a base 101, a heat insulation layer 102 and a protection layer 103. A partition board 7 is fixedly installed at the top of the horizontal end of the bridge shell 1. A positioning plate 8 is slidably connected to the middle of multiple partition boards 7, and the positioning plate 8 is distributed in a staggered manner with multiple partition boards 7. A top cover 3 is fixedly installed on the top of the bridge shell 1, and a pushing assembly for vertically pushing the positioning plate 8 is arranged inside the top cover 3;

[0025] The bridge shell 1 is composed of a base 101, a heat insulation layer 102 and a protection layer 103. The heat insulation layer 102 can well achieve heat insulation, so that the fire-resistant effect of the cable bridge is improved. The cooperation of the base 101 and the protection layer 103 ensures the overall structural strength of the cable bridge. Place the cable into the inside of the bridge shell 1 and separate it through the partition board 7. After fixing the top cover 3 to the top of the bridge shell 1, the positioning plate 8 is exactly combined in the middle of multiple partition boards 7. Drive the screw 11 to rotate through the rotating block 4. While the screw 11 is screwed with the top cover 3, its bottom is rotationally matched with the positioning plate 8, so as to push the positioning plate 8 downward until the positioning plate 8 abuts against the cable. The staggered positioning plates 8 can complete the positioning of multiple cables at the same time, and during the positioning process, the cables will not generate offsets that affect the positioning.

[0026] It should be noted that the base 101, the heat insulation layer 102 and the protective layer 103 here directly refer to the comparative documents, so the specific fire prevention principle will not be elaborated here.

[0027] Specifically, as Figure 2 shown in Figure 4 , the pushing component includes a screw 11. A rotating block 4 is fixedly installed at the top of the screw 11. The screw 11 is in threaded connection with the inner wall of the top cover 3. The bottom of the screw 11 is rotatably connected to the top of the positioning plate 8. By driving the screw 11 to rotate through the rotating block 4, while the screw 11 is in threaded connection with the top cover 3, its bottom is rotatably matched with the positioning plate 8, so as to push the positioning plate 8 to move downward. An outer seat 5 is fixedly installed at the top of the top cover 3. The inner wall of the outer seat 5 is slidably connected with the outer wall of the screw 11, and a limiting part for axially limiting the screw 11 is arranged inside the outer seat 5. The limiting part includes a rubber block 6. The rubber block 6 is in interference fit with the inside of the outer seat 5, and the inner wall of the rubber block 6 abuts against the outer wall of the screw 11. After the displacement of the positioning plate 8 is completed through the screw 11, the rubber block 6 is inserted into the outer seat 5. The interference fit method ensures the stable position of the rubber block 6 itself. The rubber block 6 abuts against the outer wall of the screw 11, so that the self-deflection of the screw 11 can be restricted through friction, thereby improving the stability of the fire-resistant cable tray during use.

[0028] Specifically, as Figure 2 shown in Figure 3 , the top cover 3 is fixedly connected to the top of the vertical end of the cable tray housing 1 through a fastening rod 12. An installation plate 2 is fixedly installed on the outer wall of the cable tray housing 1, so as to ensure the convenience of disassembly and assembly of the top cover 3. A bottom strip 10 is fixedly installed at the bottom of the top cover 3. The bottom strip 10 is inserted into the top of the vertical end of the cable tray housing 1 through a mating groove 9, so as to ensure the stable connection between the top cover 3 and the cable tray housing 1.

[0029] Working principle: The bridge shell 1 is composed of a base 101, a heat insulation layer 102 and a protective layer 103. The heat insulation layer 102 can achieve good heat insulation, improving the fire resistance effect of the cable bridge. The cooperation of the base 101 and the protective layer 103 ensures the overall structural strength of the cable bridge. Place the cables inside the bridge shell 1 and separate them through the partition plates 7. After fixing the top cover 3 to the top of the bridge shell 1, the positioning plate 8 is exactly combined in the middle of multiple partition plates 7. Drive the screw 11 to rotate through the rotating block 4. While the screw 11 is screwed with the top cover 3, its bottom is rotationally matched with the positioning plate 8, thereby pushing the positioning plate 8 to move downward until the positioning plate 8 abuts against the cables. The positioning of multiple groups of cables can be completed simultaneously through the staggeredly arranged positioning plates 8, and during the positioning process, the cables will not generate offsets that affect the positioning. After completing the displacement of the positioning plate 8 through the screw 11, the rubber block 6 is stuffed into the outer seat 5, and the interference fit method ensures the stable position of the rubber block 6 itself. The rubber block 6 abuts against the outer wall of the screw 11, thereby restricting the self-deflection of the screw 11 through friction, thus improving the stability of the use of the fire-resistant cable bridge.

[0030] The above description of the embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire-resistant cable tray, comprising a tray housing (1), characterized in that: The bridge frame shell (1) includes a base (101), a heat insulation layer (102) and a protective layer (103); a partition (7) is fixedly installed on the top of the horizontal end of the bridge frame shell (1); a plurality of groups of the partitions (7) are slidably connected in the middle with a positioning plate (8), and the positioning plate (8) and the plurality of groups of the partitions (7) are staggered and distributed; a top cover (3) is fixedly installed on the top of the bridge frame shell (1); a pushing component for vertically pushing the positioning plate (8) is arranged inside the top cover (3).

2. A fire-resistant cable tray according to claim 1, characterized in that: The pushing assembly comprises a screw rod (11), a rotating block (4) is fixedly mounted on the top of the screw rod (11), the screw rod (11) is screwed and connected to the inner surface wall of the top cover (3), and the bottom of the screw rod (11) is rotationally connected to the top of the positioning plate (8).

3. A fire-resistant cable tray according to claim 2, characterized in that: An outer seat (5) is fixedly mounted on the top of the top cover (3); an inner surface wall of the outer seat (5) is slidably connected to an outer surface wall of the screw rod (11); and a limiting portion for axially limiting the screw rod (11) is provided inside the outer seat (5).

4. A fire-resistant cable tray according to claim 3, characterized in that: The limiting portion comprises a rubber block (6), the rubber block (6) is interference-fitted with the inside of the outer seat (5), and the inner surface wall of the rubber block (6) is in contact with the outer surface wall of the screw rod (11).

5. A fire-resistant cable tray according to claim 4, characterized in that: The top cover (3) is fixedly connected to the top of the vertical end of the bridge housing (1) via a fastening rod (12), and a mounting plate (2) is fixedly mounted on the outer wall of the bridge housing (1).

6. A fire-resistant cable tray according to claim 5, characterized in that: A bottom strip (10) is fixedly mounted on the bottom of the top cover (3), and the bottom strip (10) is plugged into the top of the vertical end of the bridge housing (1) through a coupling groove (9).

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