Large-span roof monitoring alarm system

Abstract

The utility model discloses a large-span roof monitoring alarm system, which comprises a deformation monitoring laser assembly, a laser reflection assembly and a pre-alarm device, the deformation monitoring laser assembly is arranged on a structural column through a fixing frame, the laser reflection assembly is arranged on a large-span roof stress component through a fixing frame, and the pre-alarm device is arranged on the structural column. The deformation monitoring laser assembly is electrically connected with the laser reflection assembly, the laser reflection assembly directly faces the deformation monitoring laser assembly, the pre-alarm device is electrically connected with the laser reflection assembly, and when the large-span roof deforms, laser reflected by the laser reflection assembly just irradiates the deformation monitoring laser assembly to activate the pre-alarm device. When the large-span roof deforms, the position or angle of the reflecting plate can be driven to change, so that the light path of the laser reflected by the reflecting plate is changed, and the effect of monitoring the large-span roof can be achieved. The large-span roof monitoring alarm system provided by the utility model has the effects of uninterruptedly monitoring whether the roof deforms for a long time and timely early warning.

Description

Technical Field

[0001] The utility model relates to the technical field of building deformation monitoring, in particular to a large-span roof monitoring and alarm system. Background Art

[0002] With the development of construction technology, large-span roofs are widely used, especially in large-space buildings such as lecture halls and indoor sports venues. Whether it is a steel truss structure or a concrete structure, such large-span roofs always deform due to factors such as increased service life, aging of components, and changes in roof loads. At the same time, after such venues are delivered for use, the user lacks deformation monitoring and cannot detect deformation in time. Excessive deformation leads to structural damage and eventually causes collapse accidents. Utility Model Content

[0003] In view of the above problems, a large-span roof monitoring and alarm system is now provided to solve the problems existing in the prior art.

[0004] The specific technical solutions are as follows:

[0005] A large-span roof monitoring and alarm system comprises a deformation monitoring laser component, a laser reflection component and a pre-alarm device, wherein the deformation monitoring laser component is arranged on a structural column via a fixing frame, the laser reflection component is arranged on a large-span roof load-bearing member via a fixing frame, and the laser reflection component is directly opposite to the deformation monitoring laser component, and the pre-alarm device is electrically connected to the laser reflection component, and when the large-span roof is deformed, the laser reflected by the laser reflection component just shines on the deformation monitoring laser component to activate the pre-alarm device.

[0006] The above-mentioned large-span roof monitoring and alarm system also has the following characteristics: the deformation monitoring laser component includes a laser generator and a laser receiver, and the laser generator and the laser receiver are both installed on the structural column through a fixing frame. The laser generator is used to generate and emit laser toward the laser reflecting component, and the laser reflecting component receives the laser and reflects it to the laser receiver at a certain angle.

[0007] The beneficial effects of the above scheme are as follows: the generator is stimulated to output laser, and when the large-span roof is deformed, the laser reflection component is displaced, and after the laser is reflected by it, the laser is irradiated to the laser receiver.

[0008] The above-mentioned large-span roof monitoring and alarm system also has the following characteristics: the laser emitting assembly includes a reflective plate, which is installed on the large-span roof load-bearing component through a fixing frame, and the reflective surface of the reflective plate faces the laser generator. When the large-span roof load-bearing component is deformed, the position or angle of the reflective plate changes, and the reflected laser is offset.

[0009] The beneficial effects of the above scheme are as follows: the angle of the reflective plate is a preset angle, and when the large-span roof is deformed, the position or angle of the reflective plate will also change, so that it can reflect the laser and irradiate it to the laser receiver.

[0010] The above-mentioned large-span roof monitoring and alarm system also has the following characteristics: the pre-alarm device is also electrically connected to the external monitoring terminal through a wireless transmission system. When the signal received by the laser receiver changes, the pre-alarm device not only directly alarms but also outputs alarm information to the external monitoring terminal.

[0011] The beneficial effect of the above scheme is that monitoring alarm devices can be deployed at different key nodes, and all of them are electrically connected to external monitoring terminals to form a monitoring and early warning system.

[0012] In summary, the beneficial effects of this scheme are:

[0013] In the large-span roof monitoring and alarm system provided by the utility model, when the large-span roof is deformed, the position of the reflector plate will change, so that it can reflect the laser to the laser receiver, thereby achieving the effect of monitoring the large-span roof. The large-span roof monitoring and alarm system provided by the utility model has the effect of uninterrupted long-term monitoring of whether the roof is deformed and timely warning. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the installation status of the large-span roof monitoring alarm system of the utility model.

[0015] Description of the drawings: 1. Structural column; 2. Large-span roof load-bearing member; 3. Deformation monitoring laser component; 31. Laser generator; 32. Laser receiver; 4. Laser reflection component; 41. Reflection plate; 5. Early warning component. DETAILED DESCRIPTION

[0016] The following will clearly and completely describe the technical solution of the utility model in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0018] The present invention will be further described below in conjunction with specific embodiments, but this is not intended to limit the present invention.

[0019] Figure 1 The schematic diagram of the structure of the large-span roof monitoring alarm system of the utility model is shown in the installation state. Figure 1 As shown, the large-span roof monitoring and alarm system provided by this embodiment includes: a deformation monitoring laser component 3, a laser reflection component 4 and a pre-alarm device, the deformation monitoring laser component 3 is set on the structural column 1 through a fixing frame, the laser reflection component 4 is set on the large-span roof load-bearing component 2 through a fixing frame, and the laser reflection component 4 is directly opposite to the deformation monitoring laser component 3, and the pre-alarm device is electrically connected to the laser reflection component 4. When the large-span roof is deformed, the laser reflected by the laser reflection component 4 just shines on the deformation monitoring laser component 3 to activate the pre-alarm device.

[0020] In the above embodiment, the deformation monitoring laser component 3 includes a laser generator 31 and a laser receiver 32. The laser generator 31 and the laser receiver 32 are both installed on the structural column 1 through a fixing frame. The laser generator 31 is used to generate and emit laser toward the laser reflecting component 4. The laser reflecting component 4 receives the laser and reflects it to the laser receiver 32 at a certain angle.

[0021] In the above embodiment, the laser emitting assembly includes a reflective plate 41, which is installed on the large-span roof load-bearing component 2 through a fixing frame, and the reflective surface of the reflective plate 41 faces the laser generator 31. When the large-span roof load-bearing component 2 is deformed, the position or angle of the reflective plate 41 changes, and the reflected laser is offset.

[0022] It should be noted that when the large-span roof is in an undeformed state, the laser output by the laser generator 31 does not irradiate the reflective plate 41 .

[0023] In the above embodiment, the pre-alarm device is also electrically connected to the external monitoring terminal through the wireless transmission system. When the signal received by the laser receiver 32 changes, the pre-alarm device not only directly alarms but also outputs alarm information to the external monitoring terminal.

[0024] Working principle, after the laser generator 31, the laser receiver 32 and the reflective plate 41 are installed through the fixing frame, the position and angle of the reflective plate 41 are adjusted. At this time, the laser generated by the laser generator 31 is not irradiated on the reflective plate 41, so the laser receiver 32 is not activated, and the preset deformation amount is H1. When the deflection of the large-span roof load-bearing component 2 reaches H1, the reflective plate 41 moves downward. At this time, the laser generated by the laser generator 31 is irradiated on the reflective plate 41 and reflected on the laser receiver 32. The laser receiver 32 outputs a signal until the pre-alarm component 5, and the pre-alarm component 5 outputs an alarm signal.

[0025] The above are only preferred embodiments of the present invention, and do not limit the implementation mode and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the contents of the present invention specification should be included in the protection scope of the present invention.

Claims

1. A large-span roof monitoring and alarm system, characterized in that: The invention comprises a deformation monitoring laser component (3), a laser reflection component (4) and a pre-alarm device, wherein the deformation monitoring laser component (3) is arranged on a structural column (1) via a fixing frame, the laser reflection component (4) is arranged on a large-span roof load-bearing component (2) via a fixing frame, and the laser reflection component (4) is directly opposite to the deformation monitoring laser component (3), and the pre-alarm device is electrically connected to the laser reflection component (4); when the large-span roof is deformed, the laser reflected by the laser reflection component (4) is irradiated on the deformation monitoring laser component (3) to activate the pre-alarm device.

2. A large-span roof monitoring and alarm system according to claim 1, characterized in that: The deformation monitoring laser component (3) comprises a laser generator (31) and a laser receiver (32), wherein the laser generator (31) and the laser receiver (32) are both mounted on the structural column (1) via a fixing frame, wherein the laser generator (31) is used to generate and emit laser light toward the laser reflection component (4), and the laser reflection component (4) receives the laser light and reflects it to the laser receiver (32) at a certain angle.

3. A large-span roof monitoring and alarm system according to claim 2, characterized in that: The laser reflection assembly comprises a reflection plate (41), the reflection plate (41) being mounted on a large-span roof load-bearing component (2) via a fixing frame, and the reflection surface of the reflection plate (41) facing the laser generator (31), and when the large-span roof load-bearing component (2) is deformed, the position or angle of the reflection plate (41) changes, and the reflected laser is offset.

4. A large-span roof monitoring and alarm system according to claim 3, characterized in that: The pre-alarm device is also electrically connected to an external monitoring terminal via a wireless transmission system. When the signal received by the laser receiver (32) changes, the pre-alarm device not only directly alarms but also outputs alarm information to the external monitoring terminal.

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