一种隧道火灾探测器安装结构

Abstract

本实用新型公开了一种隧道火灾探测器安装结构，包括接线盒和火灾探测器以及隧道，隧道的墙壁内设置有方形开槽，方板的四角均开设有圆孔，方板的四角圆孔处套接有化学锚栓，化学锚栓的顶部与隧道墙壁钻孔处相套接，且通过化学粘接剂碎裂后化学锚固于钻孔中。本装置应用于火灾探测器的安装环节，对整体的安装过程进行改进，接线盒的四面均开设接线孔，使得在进行线路连接和维修更加容易操作。通过空心管延长整体长度，脱离墙面湍流区，直接暴露于主气流通道，通过物理延长提升探测器性能，使其处于湍流影响较小的区域，减少气流扰动对烟雾或气流采样的干扰，通过延长支架的合理设计，可有效规避墙面湍流区对火灾探测器的负面影响。

Claims

1. A tunnel fire detector mounting structure characterised in that: The system includes a junction box (1), a fire detector (10), and a tunnel. The tunnel wall has a square slot, and the four corners of the square slot have drill holes. The square slot has gaps. The junction box (1) is an embedded part and is set in the slot of the tunnel. The four sides of the side wall of the junction box (1) have wiring holes, and the wiring holes are long. The lower surface corners of the junction box (1) are fixedly connected to a square plate (2). The four corners of the square plate (2) have round holes. The four corner round holes of the square plate (2) are fitted with chemical anchors (3). The top of the chemical anchors (3) is fitted with the drill holes in the tunnel wall and is chemically anchored in the drill holes after being broken by chemical adhesive. The junction box (1) has a square groove in its inner cavity, and screws (5) are evenly arranged in the square groove. A fitting plate (6) is fitted in the square groove of the junction box (1), and the side wall of the fitting plate (6) is sleeved on the outer wall of the screw (5). A double nut (7) is threaded to the bottom of the side wall of the screw (5), and the top of the double nut (7) is in contact with the lower surface of the fitting plate (6). A round hole is opened in the center of the fitting plate (6). A hollow tube structure (8) is provided in the center of the lower surface of the fitting plate (6). A round plate (9) is fixedly connected to the lower surface of the hollow tube structure (8), and a round hole is opened in the center of the round plate (9). A fire detector (10) is provided in the lower surface of the round plate (9).

2. A tunnel fire detector mounting structure according to claim 1, characterised in that: The hollow tube structure (8) includes an internally threaded tube (81), the upper surface of which is fixedly connected to the center of the lower surface of the fitting plate (6), and the inner cavity of the internally threaded tube (81) is hollow. The bottom of the inner wall of the internally threaded tube (81) is threaded. A connecting pipe (82) is threaded to the thread of the internally threaded tube (81), and the inner cavity of the connecting pipe (82) is hollow. The bottom of the inner wall of the connecting pipe (82) is threaded. An externally threaded tube (83) is threaded to the thread of the connecting pipe (82), and the inner cavity of the externally threaded tube (83) is hollow. The lower surface of the externally threaded tube (83) is fixedly connected to the center of the upper surface of the circular plate (9).

3. The tunnel fire detector mounting structure according to claim 1, wherein: The circular plate (9) has evenly spaced circular holes on its surface and the fire detector (10) has evenly spaced circular holes on its surface. The circular holes of the fire detector (10) correspond to the circular holes of the circular plate (9) and are connected to each other by bolts (11). The fire detector (10) is fixedly connected to the circular plate (9) by bolts (11).

4. The tunnel fire detector mounting structure according to claim 1, wherein: The outer wall of the chemical anchor (3) is fitted with a gasket (4), and the gasket (4) is located at the bottom of the outer wall of the chemical anchor (3). The upper surface of the gasket (4) is in contact with the lower surface of the square plate (2).

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