Fireproof partition plate for building ventilation pipeline

Abstract

The utility model discloses a building ventilating duct fireproof partition board, which relates to the technical field of fireproof partition boards and comprises a mounting frame, a rotating shaft is rotatably connected in the mounting frame, two fireproof boards are fixedly mounted on the surface of the rotating shaft, and fire-fighting glass bodies are fixedly mounted on the surfaces of the fireproof boards. A fixing frame is fixedly installed at the end, away from the fireproof plate, of the fire-fighting glass body, the fixing frame is fixedly connected with the interior of the mounting frame, a torsion spring movably sleeves the end, located in the mounting frame, of the rotating shaft, the fire-fighting glass body can be burnt out by big fire, and then the fireproof plate is not blocked by the fire-fighting glass body; and then the fireproof plates and the rotating shafts are reset through the torsion effect of the torsion springs, then the two fireproof plates rotate by 90 degrees, then the installation frame is blocked, isolation is facilitated, fire spreading is prevented, the fireproof effect is improved, the device is automatically closed conveniently, and the operation convenience of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of fireproof partition technology, and in particular to a fireproof partition for building ventilation ducts. Background Technology

[0002] Ventilation ducts are short for ventilation pipes. They are metal or non-metal pipes used in ventilation and air conditioning projects in industrial and civil buildings. Ventilation ducts are a type of municipal infrastructure designed to circulate air and reduce the concentration of harmful gases.

[0003] To prevent the spread of fire in the event of a fire, fireproof partitions are installed inside ventilation ducts. However, some existing fireproof partitions do not close automatically, resulting in the fire spreading when a fire occurs.

[0004] To address the aforementioned issues, a fireproof partition for building ventilation ducts is proposed. Utility Model Content

[0005] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a fireproof partition for building ventilation ducts that can solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a fireproof partition for building ventilation ducts, comprising an installation frame, a rotating shaft rotatably connected inside the installation frame, two fireproof plates fixedly installed on the surface of the rotating shaft, a fire-resistant glass body fixedly installed on the surface of the fireproof plates, a fixing bracket fixedly installed at the end of the fire-resistant glass body away from the fireproof plates, the fixing bracket being fixedly connected to the inside of the installation frame, and a torsion spring movably sleeved on the end of the rotating shaft located inside the installation frame, the lower end of the torsion spring being fixedly connected to the surface of the rotating shaft, and the upper end of the torsion spring being fixedly connected to the inner wall of the installation frame.

[0007] Preferably, the mounting frame is internally slidably connected with a locking rod, one end of which slides through the mounting frame and extends to the outside of the mounting frame.

[0008] Preferably, a disc is fixedly sleeved on one end of the rotating shaft inside the mounting frame. A fixing groove is formed on the surface of the disc, and one end of the clamping rod is semi-circular, which matches the fixing groove.

[0009] Preferably, a tension spring is fixedly installed on one side of the lever, and the end of the tension spring near the mounting frame is fixedly connected to the surface of the mounting frame.

[0010] Preferably, the mounting frame has two compression plates that slide internally, and each compression plate has a movable block fixedly mounted on one side opposite to the other, with both movable blocks slidingly connected inside the mounting frame.

[0011] Preferably, each of the two movable blocks is fixedly installed with a spring on one of its opposite sides, and the opposite ends of the two springs are fixedly connected to the interior of the mounting frame.

[0012] Preferably, each of the two movable blocks is fixedly mounted with a pressing slide bar on one side opposite to the other. The two pressing slide bars are slidably connected inside the mounting frame, and the opposite ends of the two pressing slide bars are semi-circular.

[0013] Preferably, the mounting frame is internally threaded with bolts, one end of which is rotatably connected to a pressing block. The pressing block is slidably connected inside the mounting frame, and one end of the pressing block is triangular in shape. A groove is provided on the inner wall of the mounting frame.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] The fireproof partition of the building's ventilation duct will burn through the fireproof glass body in a large fire, thus freeing the fireproof partition from obstruction. This allows the fireproof partition and the rotating shaft to reset through the torsion of the torsion spring, causing the two fireproof partitions to rotate 90 degrees. This effectively seals the installation frame, facilitating isolation, preventing the spread of fire, improving fire protection, and enabling the device to automatically shut down, thus enhancing the ease of operation.

[0016] The fireproof partition of the building's ventilation duct drives the disc to rotate, which causes the fixing slot to coincide with one end of the clamp rod. The clamp rod is then reset by the tension of two tension springs, thus locking the clamp rod into the fixing slot. This completes the fixation of the rotating shaft and the disc, making it easier to fix the two fireproof boards and preventing the fire from impacting the fireproof boards and causing them to open. This improves the stability of the fireproof boards and prevents them from opening automatically.

[0017] The fireproof partition of the building's ventilation duct allows two opposing movements to stretch two elastic springs, which in turn causes two extrusion plates to move outwards. These extrusion plates then press against the inner wall of the ventilation duct, thus fixing the mounting frame and facilitating the installation of the device inside the ventilation duct. This improves the ease and speed of installation. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a structural schematic diagram of a fireproof partition for building ventilation ducts according to the present invention;

[0020] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 This is a schematic diagram of the disc of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the mounting frame of this utility model.

[0023] Reference numerals: 1. Mounting frame; 2. Extrusion plate; 3. Fireproof board; 4. Rotating shaft; 5. Fireproof glass body; 6. Fixing bracket; 7. Groove; 8. Bolt; 9. Torsion spring; 10. Tension spring; 11. Locking rod; 12. Disc; 13. Fixing slot; 14. Elastic spring; 15. Extrusion slide bar; 16. Extrusion block; 17. Movable block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0026] Please see Figures 1-4 This utility model provides a technical solution: a fireproof partition for building ventilation ducts, including an installation frame 1, a rotating shaft 4 rotatably connected inside the installation frame 1, two fireproof plates 3 fixedly installed on the surface of the rotating shaft 4, a fireproof glass body 5 fixedly installed on the surface of the fireproof plate 3, a fixing bracket 6 fixedly installed at the end of the fireproof glass body 5 away from the fireproof plate 3, the fixing bracket 6 being fixedly connected to the inside of the installation frame 1, and a torsion spring 9 movably sleeved on the end of the rotating shaft 4 located inside the installation frame 1, the lower end of the torsion spring 9 being fixedly connected to the surface of the rotating shaft 4, and the upper end of the torsion spring 9 being fixedly connected to the inner wall of the installation frame 1.

[0027] In the event of a fire, the fire will burn through the fireproof glass body 5, thus freeing the fireproof board 3 from the obstruction of the fireproof glass body 5. This will cause the fireproof board 3 and the rotating shaft 4 to reset under the torsion of the torsion spring 9, allowing the two fireproof boards 3 to rotate 90 degrees, thereby sealing off the installation frame 1. This facilitates isolation, prevents the spread of fire, improves the fire protection effect, facilitates automatic shutdown of the device, and enhances the ease of operation of the device.

[0028] A locking rod 11 is slidably connected inside the mounting frame 1. One end of the locking rod 11 slides through the mounting frame 1 and extends to the outside of the mounting frame 1. A disc 12 is fixedly sleeved on one end of the rotating shaft 4 inside the mounting frame 1. A fixing groove 13 is opened on the surface of the disc 12. One end of the locking rod 11 is semi-circular and matches the fixing groove 13. A tension spring 10 is fixedly installed on one side of the locking rod 11. The end of the tension spring 10 near the mounting frame 1 is fixedly connected to the surface of the mounting frame 1.

[0029] When the rotating shaft 4 rotates, it drives the disc 12 to rotate, which causes the fixed slot 13 to coincide with one end of the locking rod 11. The locking rod 11 is then reset by the tension of the two tension springs 10, and then the locking rod 11 is locked into the fixed slot 13, thus completing the fixation of the rotating shaft 4 and the disc 12. This facilitates the fixation of the two fireproof boards 3, preventing the fire from impacting the fireproof boards 3 and causing them to open. This improves the stability of the fireproof boards 3 and prevents them from opening automatically.

[0030] The mounting frame 1 has two sliding connections inside, each with a movable block 17 fixedly mounted on one side of the opposite side. Both movable blocks 17 are slidably connected inside the mounting frame 1. Both movable blocks 17 are fixedly mounted on one side of the opposite side, each with a spring spring 14 fixedly mounted on one end of the opposite side. Both movable blocks 17 are fixedly mounted on one side of the opposite side, each with a pressing slide rod 15 fixedly mounted inside the mounting frame 1. Both pressing slide rods 15 are slidably connected inside the mounting frame 1, each with a semi-circular end. The mounting frame 1 has a threaded connection to a bolt 8, one end of which is rotatably connected to a pressing block 16. The pressing block 16 is slidably connected inside the mounting frame 1, with one end of the pressing block 16 being triangular. The inner wall of the mounting frame 1 has a groove 7.

[0031] Rotating bolt 8 causes it to move inward into the mounting frame 1, thereby pressing the compression block 16. The compression block 16 then presses the two compression slide rods 15, causing them to move in opposite directions. This causes the two movable blocks 17 to move in opposite directions, stretching the two spring springs 14. Consequently, the two compression plates 2 move outward, pressing against the inner wall of the ventilation duct. This fixes the mounting frame 1, facilitating the installation of the device inside the ventilation duct and improving the ease and speed of installation.

[0032] Working principle:

[0033] In the event of a fire, the fire will burn through the fireproof glass body 5, thus freeing the fireproof board 3 from the obstruction of the fireproof glass body 5. This allows the fireproof board 3 and the rotating shaft 4 to reset under the torsion of the torsion spring 9, causing the two fireproof boards 3 to rotate 90 degrees, thereby sealing the mounting frame 1. When the rotating shaft 4 rotates, it drives the disc 12 to rotate, causing the fixing slot 13 to coincide with one end of the clamping rod 11. This allows the clamping rod 11 to reset under the tension of the two tension springs 10, thus locking the clamping rod 11 into the fixing slot 13, completing the fixation of the rotating shaft 4 and the disc 12, and facilitating the fixation of the two fireproof boards 3.

[0034] Rotating bolt 8 causes it to move inward into the mounting frame 1, thereby pressing the compression block 16, which in turn presses the two compression slide rods 15, causing them to move in opposite directions. This causes the two movable blocks 17 to move in opposite directions, stretching the two spring springs 14, which in turn moves the two compression plates 2 outward, pressing the inner wall of the ventilation duct and thus fixing the mounting frame 1.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire barrier for a building ventilation duct comprising a mounting frame (1) characterised in that: The inside of the mounting frame (1) is rotatably connected with an axis of rotation (4), the surface of the axis of rotation (4) is fixedly installed with two fireproof plates (3), the surface of the fireproof plate (3) is fixedly installed with a fire-fighting glass body (5), one end of the fire-fighting glass body (5) away from the fireproof plate (3) is fixedly installed with a fixed frame (6), the fixed frame (6) is fixedly connected with the inside of the mounting frame (1), one end of the axis of rotation (4) located in the inside of the mounting frame (1) is movably sleeved with a torsion spring (9), the lower end of the torsion spring (9) is fixedly connected with the surface of the axis of rotation (4), and the upper end of the torsion spring (9) is fixedly connected with the inner wall of the mounting frame (1).

2. A fire barrier for a building vent duct according to claim 1, wherein: The inside of the mounting frame (1) is slidably connected with a clamping rod (11), one end of the clamping rod (11) slidably penetrates the mounting frame (1) and extends to the outside of the mounting frame (1).

3. A fire barrier for a building vent duct according to claim 2, wherein: The axis of rotation (4) is fixedly sleeved with a disc (12) on one end located in the inside of the mounting frame (1), the surface of the disc (12) is provided with a fixed clamping groove (13), one end of the clamping rod (11) is semicircular, and one end of the clamping rod (11) is consistent with the fixed clamping groove (13).

4. A fire barrier for a building vent duct according to claim 3, wherein: One side of the clamping rod (11) is fixedly installed with a tension spring (10), and the end of the tension spring (10) close to the mounting frame (1) is fixedly connected with the surface of the mounting frame (1).

5. A fire barrier for a building vent duct according to claim 4, wherein: The inside of the mounting frame (1) is slidably connected with two extrusion plates (2), and the opposite sides of the two extrusion plates (2) are fixedly installed with movable blocks (17).

6. A fire barrier for a building vent duct according to claim 5, wherein: The opposite sides of the two movable blocks (17) are fixedly installed with elastic springs (14), and the opposite ends of the two elastic springs (14) are fixedly connected with the inside of the mounting frame (1).

7. A fire barrier for a building vent duct according to claim 6, wherein: The opposite sides of the two movable blocks (17) are fixedly installed with extrusion sliding rods (15), and the opposite ends of the two extrusion sliding rods (15) are semicircular.

8. A fire barrier for a building vent duct according to claim 7, wherein: The inside of the mounting frame (1) is threadedly connected with a bolt (8), one end of the bolt (8) is rotatably connected with an extrusion block (16), the extrusion block (16) is slidably connected in the inside of the mounting frame (1), one end of the extrusion block (16) is triangular, and a groove (7) is formed in the inner wall of the mounting frame (1).

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