Cable bridge through-floor fireproof installation structure

Abstract

The utility model discloses a cable bridge penetrating floor fireproof installation structure which comprises a penetrating hole formed in a floor body, a cable bridge is arranged in an inner cavity of the penetrating hole in a penetrating mode, and T-shaped steel bars are fixedly installed on the two sides of the bottom of the inner cavity of the penetrating hole through expansion bolts pre-embedded in the floor body. And an iron gauze body is arranged below the two T-shaped steel bars. The T-shaped steel bars are installed below the floor slab body through the expansion bolts, then the iron gauze body is attached to the lower portions of the two T-shaped steel bars, then the one-way lock nail assemblies are taken up and penetrate through installation holes in the iron gauze body and the T-shaped steel bars, the threaded columns are operated to rotate, the threaded sleeves are made to move downwards, and then the iron gauze body and the T-shaped steel bars are fixed. The deformable strips deform to abut against the inner sides of the T-shaped steel strips and are matched with the circular plates, the iron gauze body can be installed, cooperation of constructors above the floor slab is not needed, and the purposes that the constructors only need to operate below the floor slab, the iron gauze can be installed below the floor slab, and operation is easy and efficient can be achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of cable tray construction, and particularly relates to a fireproof installation structure for a cable tray passing through a floor slab. Background Technique

[0002] After the cable tray passes through the floor slab, a wire mesh will be arranged under the floor slab through angle steel under the floor slab. During the installation of the wire mesh, multiple construction workers are required to cooperate above and below the floor slab for installation, which is rather laborious and time-consuming and increases the construction cost. Therefore, we designed a fireproof installation structure for a cable tray passing through a floor slab, which only requires construction workers to operate under the floor slab to install the wire mesh under the floor slab, and the operation is simple and efficient. Content of the Utility Model

[0003] The purpose of the utility model is to provide a fireproof installation structure for a cable tray passing through a floor slab, which has the advantages that only construction workers need to operate under the floor slab to install the wire mesh under the floor slab, and the operation is simple and efficient, so as to solve the above-mentioned background technical problems.

[0004] The technical solution of the utility model to solve the above technical problems is as follows: a fireproof installation structure for a cable tray passing through a floor slab, which includes a through hole opened on the floor slab body, the cable tray is arranged in the inner cavity of the through hole, both sides of the bottom of the inner cavity of the through hole are fixedly installed with T-shaped steel bars through expansion bolts embedded in the floor slab body, a wire mesh body is arranged below the two T-shaped steel bars, a plurality of one-way locking nail assemblies are arranged between the wire mesh body and the T-shaped steel bars, the one-way locking nail assembly includes a round plate, a rotatable threaded column is arranged through the round plate, a fixed pipe sleeved on the surface of the threaded column is fixedly connected to the top of the round plate, deformable strips are fixedly connected to both sides of the top of the fixed pipe, and a threaded sleeve threadedly connected to the surface of the threaded column is fixedly connected to the top of the two deformable strips. Fireproof pillows are filled above the wire mesh body and inside the through hole.

[0005] Preferably, a fixing ring is fixedly connected to the inner cavity of the round plate, and an annular groove for rotating on the surface of the fixing ring is opened at the bottom of the surface of the threaded column.

[0006] Preferably, a hexagonal hole is opened at the bottom of the threaded column.

[0007] Preferably, a waterproof platform is poured on the top of the floor slab body, and the waterproof platform surrounds the through hole.

[0008] Preferably, installation holes for the expansion bolts and the one-way locking nail assemblies to pass through are opened on both sides of the bottom of the T-shaped steel bar.

[0009] The beneficial effects of the utility model are:

[0010] 1. The utility model installs the T-shaped steel bars under the floor slab body through expansion bolts. Then, the wire mesh body is attached to the lower sides of the two T-shaped steel bars. Next, pick up the one-way locking nail assembly, pass it through the installation holes on the wire mesh body and the T-shaped steel bars, and operate the threaded column to rotate, so that the threaded sleeve moves downward, and the deformable strip deforms and abuts against the inner side of the T-shaped steel bar. In cooperation with the round plate, the wire mesh body can be installed. Without the cooperation of the construction workers above the floor slab, it can achieve the purpose of installing the wire mesh under the floor slab only by the construction workers operating under the floor slab, with simple and efficient operation.

[0011] 2. Through the setting of the waterproof platform, the utility model can block the top of the through hole, effectively preventing the water on the floor slab from flowing into the through hole from the top of the floor slab body, ensuring that the fireproof pillow will not deteriorate and affect the fireproof effect.

[0012] 3. Through the setting of the hexagonal hole, the user can insert the hexagonal head installed on the hand drill into the inner cavity of the hexagonal hole, so as to conveniently operate the rotation of the threaded column. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Through the detailed description in combination with the following drawings, the above and / or other advantages of the utility model will become clearer and easier to understand. These drawings are only schematic and do not limit the utility model, where:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0015] Figure 2 is a three-dimensional schematic diagram of the one-way locking nail assembly of an embodiment of the utility model;

[0016] Figure 3 is a three-dimensional schematic diagram of the one-way locking nail assembly of an embodiment of the utility model;

[0017] Figure 4 is a three-dimensional schematic diagram of the threaded column of an embodiment of the utility model;

[0018] Figure 5 is an embodiment of the utility model Figure 1 is a partial enlarged view of point A in;

[0019] Figure 6 is a three-dimensional schematic diagram of the T-shaped steel bar of an embodiment of the utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 1. Floor body, 2. Cable tray, 3. Through hole, 4. Expansion bolt, 5. T-shaped steel bar, 6. Wire mesh body, 7. One-way locking nail assembly, 71. Round plate, 72. Threaded column, 73. Fixed pipe, 74. Deformable strip, 75. Threaded sleeve, 76. Fixed ring, 77. Annular groove, 78. Hexagonal hole, 8. Fire pillow, 9. Waterproof platform, 10. Installation hole. DETAILED DESCRIPTION

[0022] Hereinafter, an embodiment of the cable tray through-floor fireproof installation structure of the present invention will be described with reference to the accompanying drawings.

[0023] Figures 1-6 The utility model shows a cable bridge through the floor fire prevention installation structure of an embodiment of the present invention, which includes a through hole 3 opened on the floor body 1, the cable bridge 2 is inserted into the inner cavity of the through hole 3, and both sides of the bottom of the inner cavity of the through hole 3 are fixedly installed with T-shaped steel bars 5 through expansion bolts 4 pre-buried in the floor body 1, a wire mesh body 6 is arranged below the two T-shaped steel bars 5, and a plurality of one-way locking nail assemblies 7 are arranged between the wire mesh body 6 and the T-shaped steel bar 5. Both sides of the bottom of the T-shaped steel bar 5 are provided with installation holes 10 for the expansion bolts 4 and the one-way locking nail assembly 7 to pass through, and the one-way locking nail assembly 7 includes a circular plate 71, a rotatable threaded column 72 is penetrated through the circular plate 71, and a fixing pipe 73 sleeved on the surface of the threaded column 72 is fixedly connected to the top of the circular plate 71, and both sides of the top of the fixing pipe 73 are fixedly connected with deformable strips 74. The top of the variable strip 74 is fixedly connected with a threaded sleeve 75 which is threadedly connected to the surface of the threaded column 72, and the inner cavity of the circular plate 71 is fixedly connected with a fixing ring 76. The bottom of the surface of the threaded column 72 is provided with an annular groove 77 which rotates on the surface of the fixing ring 76. The bottom of the threaded column 72 is provided with a hexagonal hole 78. Through the setting of the hexagonal hole 78, the user can insert the hexagonal head installed on the hand drill into the inner cavity of the hexagonal hole 78, so as to facilitate the operation of the threaded column 72 to rotate. The top of the wire mesh body 6 and the inner side of the through hole 3 are filled with fire pillows 8, and the top of the floor body 1 is cast with a waterproof platform 9. The waterproof platform 9 surrounds the through hole 3. Through the setting of the waterproof platform 9, the top of the through hole 3 can be blocked, which effectively prevents water on the floor from flowing into the through hole 3 from the top of the floor body 1, ensuring that the fire pillow 8 will not deteriorate and affect the fire prevention effect.

[0024] Working principle: When the utility model is in use, the user installs two T-shaped steel bars 5 under the floor slab body 1 through expansion bolts 4 embedded in the floor slab body 1 and on both sides of the inner cavity of the through hole 3. Then, the wire mesh body 6 is lifted and attached under the two T-shaped steel bars 5. Then, the one-way locking nail assembly 7 is picked up, so that the threaded column 72, the fixed pipe 73, the deformable strip 74 and the threaded sleeve 75 pass through the installation holes 10 on the wire mesh body 6 and the T-shaped steel bars 5. Then, a hand drill is picked up and inserted into the inner cavity of the hexagonal hole 78 to drive the threaded column 72 to rotate. Due to the thread, the threaded sleeve 75 moves downward, and the deformable strip 74 deforms and expands outward, abuts against the inner side of the T-shaped steel bar 5, and the circular plate 71 supports the bottom of the wire mesh body 6, so that the wire mesh body 6 can be installed without the cooperation of the construction personnel above the floor slab, improving the installation efficiency.

[0025] To sum up: For the fireproof installation structure of the cable tray passing through the floor slab, the T-shaped steel bars 5 are installed under the floor slab body 1 through the expansion bolts 4. Then, the wire mesh body 6 is attached under the two T-shaped steel bars 5. Then, the one-way locking nail assembly 7 is picked up and passed through the installation holes 10 on the wire mesh body 6 and the T-shaped steel bars 5. The threaded column 72 is operated to rotate, so that the threaded sleeve 75 moves downward, and the deformable strip 74 deforms and abuts against the inner side of the T-shaped steel bar 5. With the cooperation of the circular plate 71, the wire mesh body 6 can be installed without the cooperation of the construction personnel above the floor slab, and the purpose of only requiring the construction personnel to operate under the floor slab to install the wire mesh under the floor slab can be achieved, with simple and efficient operation.

Claims

1. A fireproof installation structure for a cable tray passing through a floor slab, characterized in that, It includes a through hole (3) opened on the floor slab body (1), the cable tray (2) is inserted into the inner cavity of the through hole (3), both sides of the bottom of the inner cavity of the through hole (3) are fixedly installed with T-shaped steel bars (5) through expansion bolts (4) embedded in the floor slab body (1), a wire mesh body (6) is arranged below the two T-shaped steel bars (5), and a plurality of one-way locking nail assemblies (7) are arranged between the wire mesh body (6) and the T-shaped steel bars (5). The one-way locking nail assembly (7) includes a round plate (71), a rotatable threaded column (72) is penetrated through the round plate (71), a fixing pipe (73) sleeved on the surface of the threaded column (72) is fixedly connected to the top of the round plate (71), deformable strips (74) are fixedly connected to both sides of the top of the fixing pipe (73), a threaded sleeve (75) threadedly connected to the surface of the threaded column (72) is fixedly connected to the top of the two deformable strips (74), and a fireproof pillow (8) is filled above the wire mesh body (6) and inside the through hole (3).

2. The fireproof installation structure of the cable tray passing through the floor slab according to claim 1, characterized in that, A fixing ring (76) is fixedly connected to the inner cavity of the round plate (71), and an annular groove (77) for rotating on the surface of the fixing ring (76) is opened at the bottom of the surface of the threaded column (72).

3. The fireproof installation structure of the cable tray passing through the floor according to claim 2, wherein A hexagonal hole (78) is opened at the bottom of the threaded column (72).

4. The fireproof installation structure of the cable tray passing through the floor slab according to claim 3, characterized in that, A waterproof platform (9) is poured on the top of the floor slab body (1), and the waterproof platform (9) surrounds the through hole (3).

5. The fireproof installation structure of the cable tray passing through the floor slab according to claim 4, characterized in that, Installation holes (10) for the expansion bolts (4) and the one-way locking nail assemblies (7) to pass through are opened on both sides of the bottom of the T-shaped steel bar (5).

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