Scaffold deformation early warning device

Abstract

The utility model discloses a scaffold deformation early warning device belongs to early warning device technical field, and its technical scheme main points include the scaffold structure, the bottom of scaffold structure is provided with vertical rod axial force transducer, the bottom of scaffold structure is provided with cantilever steel beam, the top fixedly connected with fixed mechanism of cantilever steel beam, the top of fixed mechanism is provided with steel pull rod axial force patch sensor, the top fixedly connected with displacement sensor of cantilever steel beam, the front side of scaffold structure is provided with inclination sensor, the fixed mechanism includes fixed block, solved the existing scaffold deformation early warning device when using, monitoring system often is limited to single position or single parameter monitoring of scaffold, is difficult to overall cover vertical rod stress, cantilever steel beam displacement, frame body inclination etc. Key risk points, cannot build all -round safety early warning system, is difficult to complete capture the overall safety state of scaffold structure's problem.

Description

Technical Field

[0001] This utility model relates to the field of early warning device technology, and in particular to a scaffold deformation early warning device. Background Technology

[0002] The scaffolding deformation early warning device is a safety monitoring device applied to the scaffolding system of building construction. Its core function is to sense the minute deformations or displacements caused by factors such as load changes, structural stress accumulation, and environmental influences (such as wind and vibration) during the use of the scaffolding, and convert these physical signals into identifiable early warning information (such as audible and visual alarms, data feedback, etc.) to promptly alert on-site managers or workers to abnormal scaffolding structural stability, so as to avoid safety risks such as collapse and falls caused by excessive scaffolding deformation in advance, and ensure the safety of personnel and property during construction.

[0003] Existing technology requires the use of measuring ropes, metal counterweights, and eddy current sensors to determine the deformation of scaffolding. However, in actual use, the measuring ropes are prone to swaying due to external influences, which may lead to false alarms and reduce the accuracy of the device's warnings.

[0004] An existing patent (publication number: CN222124235U) discloses a scaffold deformation early warning device, relating to the technical field of early warning devices. It is installed on a pair of scaffold poles, with a base fixedly connected to the outer wall of the first bottom end of each pole. An early warning light is installed on the first side of the base, and a height adjustment component is located at the bottom of the first end of the base. A detection component is located on the first side of the height adjustment component. This invention uses a second knob to rotate a bidirectional lead screw, which in turn moves a sliding plate closer to (or further away from) the inside of a fixed frame. Simultaneously, it gradually brings a pressure sensor into close contact with the scaffold pole, generating pressure. When the scaffold deforms, the distance between the poles changes, and the pressure in the pressure sensor increases (or decreases) significantly. At this time, the early warning light illuminates, generating an early warning. The coordination between the sliding plate and the pressure sensor is not easily affected by the external environment, improving the accuracy of the device's early warning.

[0005] To address the aforementioned issues, existing patents offer solutions. However, existing scaffolding deformation early warning devices often limit their monitoring to a single part or parameter of the scaffolding, making it difficult to comprehensively cover key risk points such as upright stress, cantilever beam displacement, and scaffold tilt. This prevents the construction of a comprehensive safety early warning system and makes it difficult to fully capture the overall safety status of the scaffolding structure. Furthermore, during the installation of the early warning devices, the sensors often lack convenient and stable fixing methods, making them prone to loosening or displacement, which impairs the accuracy of the monitoring data and hinders the provision of reliable data support for scaffolding safety assessments.

[0006] Therefore, a scaffolding deformation early warning device is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a scaffold deformation early warning device that can solve the problems of existing scaffold deformation early warning devices, which are often limited to monitoring a single part or single parameter of the scaffold. This makes it difficult to comprehensively cover key risk points such as the stress on the uprights, the displacement of the cantilevered steel beams, and the tilt of the scaffold, thus failing to build a comprehensive safety early warning system and fully capture the overall safety status of the scaffold structure. Furthermore, during the installation of the early warning device, the sensors often lack convenient and stable fixing methods, which can easily lead to loosening or displacement of the sensors, resulting in impaired accuracy of the monitoring data and making it difficult to provide reliable data support for scaffold safety assessment.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a scaffold deformation early warning device, comprising a scaffold structure, an upright axial force sensor being provided at the bottom of the scaffold structure, a cantilevered steel beam being provided at the bottom of the scaffold structure, a fixing mechanism being fixedly connected to the top of the cantilevered steel beam, an axial force sensor being provided at the top of the fixing mechanism, a displacement sensor being fixedly connected to the top of the cantilevered steel beam, an inclination sensor being provided on the front side of the scaffold structure, the fixing mechanism comprising a fixing block, an insert block being fixedly connected to the front side of the fixing block, a fixing frame being inserted into the surface of the insert block, the bottom of the fixing frame being fixedly connected to the top of the cantilevered steel beam, and a terminal structure being fixedly connected to the bottom of the cantilevered steel beam.

[0009] Preferably, a connecting frame is fixedly connected to the top of the fixing block, and a rotating shaft is rotatably connected to the inner wall of the connecting frame.

[0010] Preferably, an adjustable connecting assembly is fixedly connected to the top of the rotating shaft, the steel tie rod axial force patch sensor is disposed on the surface of the adjustable connecting assembly, an adjustment assembly is fixedly connected to the top of the adjustable connecting assembly, and a pre-installed plate is fixedly connected to the rear side of the adjustable connecting assembly.

[0011] Preferably, the inner wall of the pre-installed plate is movably connected with a pre-installed bolt, and the surface of the pre-installed bolt is threaded with a nut, the rear side of the nut being in close contact with the front side of the pre-installed plate.

[0012] Preferably, a knob is movably connected to the inner wall of the fixing frame, and the surface of the knob is threadedly connected to the inner wall of the insert block.

[0013] Preferably, the inner wall of the fixing frame is provided with a mounting hole for use with the knob, and the inner wall of the insert is provided with a threaded hole for use with the knob.

[0014] Preferably, a support assembly is fixedly connected to the top of the cantilever steel beam, and a protective plate is fixedly connected to the top of the support assembly.

[0015] Preferably, a limiting component is fixedly connected to the surface of the scaffold structure, a limiting frame is fixedly connected to the front side of the limiting component, and the surface of the tilt sensor is inserted into the inner wall of the limiting frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This application establishes a fixing mechanism that connects the bottom of the fixing frame to the top of the cantilever steel beam during use, providing a stable installation benchmark for the fixing mechanism. Combined with the plug-in connection between the plug and the fixing frame, the fixing block can be quickly positioned and installed, thus providing solid support for the axial force sensor. This ensures that the axial force sensor maintains a stable posture during monitoring, avoiding data deviations caused by loose sensor installation. Furthermore, the plug-in structure facilitates the later disassembly, maintenance, or replacement of the axial force sensor without disassembling the entire cantilever steel beam structure, simplifying the operation process, improving equipment maintenance efficiency, and ensuring the continuity and accuracy of the axial force sensor's monitoring of the cantilever steel beam's stress state.

[0018] 2. This application utilizes four upright axial force sensors (all connected to an external Bluetooth junction box and via Bluetooth interface with an Android industrial control computer for signal transmission and acquisition) to monitor real-time changes in the axial force on the uprights of the scaffolding structure. This allows for timely detection of the risk of excessive stress on the uprights due to abnormal loads. Displacement sensors, fixed to the top of the cantilevered steel beams, accurately monitor the settlement and horizontal displacement at the beam ends, reflecting the deformation state of the cantilever structure. Inclination sensors, located on the front of the scaffolding structure, collect real-time tilt data of the external facade, providing early warning of the risk of overall scaffolding collapse. (The text repeats itself here, so the translation stops.) The system monitors the stress and deformation characteristics of different key parts of the scaffolding, forming a multi-dimensional and comprehensive monitoring system. (After the monitoring data is collected, it is compared with preset thresholds. If the limit is exceeded, the system will provide multi-terminal synchronous early warning through on-site alarms on Android terminals, pop-up alarms in mini programs, and SMS notifications. The data is also transmitted to the cloud database in real time and synchronized to the mini program, ensuring that managers can obtain risk information in a timely manner and quickly deal with hidden dangers. This provides efficient and comprehensive monitoring and early warning support for the safe use of scaffolding.) This ensures that safety hazards in the scaffolding structure can be detected in a timely manner during use, providing reliable data support for construction safety. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the scaffold deformation early warning device of this utility model;

[0020] Figure 2 This is a structural diagram of the pre-assembled plate of this utility model;

[0021] Figure 3 This is a structural diagram of the fixing mechanism of this utility model;

[0022] Figure 4 This is a structural diagram of the pre-installed bolts of this utility model;

[0023] Figure 5 This is a structural diagram of the protective plate of this utility model;

[0024] Figure 6 This is a structural diagram of the limiting component of this utility model.

[0025] In the diagram, 1. Scaffolding structure; 2. Fixing mechanism; 201. Fixing block; 202. Insert block; 203. Fixing frame; 3. Upright axial force sensor; 4. Cantilever steel beam; 5. Steel tie rod axial force patch sensor; 6. Displacement sensor; 7. Tilt sensor; 8. Connecting frame; 9. Rotating shaft; 10. Adjustment assembly; 11. Pre-installation plate; 12. Pre-installation bolt; 13. Nut; 14. Knob; 15. Mounting hole; 16. Threaded hole; 17. Support assembly; 18. Protective plate; 19. Limiting assembly; 20. Limiting frame; 21. Terminal structure; 22. Adjustable connecting assembly. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-6 The present invention provides the following technical solution:

[0028] A scaffold deformation early warning device includes a scaffold structure 1, a vertical pole axial force sensor 3 installed at the bottom of the scaffold structure 1, a cantilever steel beam 4 installed at the bottom of the scaffold structure 1, a fixing mechanism 2 fixedly connected to the top of the cantilever steel beam 4, a steel tie rod axial force patch sensor 5 installed at the top of the fixing mechanism 2, a displacement sensor 6 fixedly connected to the top of the cantilever steel beam 4, an inclination sensor 7 installed on the front side of the scaffold structure 1, the fixing mechanism 2 includes a fixing block 201, an insert block 202 fixedly connected to the front side of the fixing block 201, a fixing frame 203 inserted into the surface of the insert block 202, the bottom of the fixing frame 203 fixedly connected to the top of the cantilever steel beam 4, and a terminal structure 21 fixedly connected to the bottom of the cantilever steel beam 4.

[0029] In this embodiment: By setting up a fixing mechanism 2, the bottom of the fixing frame 203 is fixedly connected to the top of the cantilever steel beam 4 during use, providing a stable installation benchmark for the fixing mechanism 2. With the insertion connection between the plug block 202 and the fixing frame 203, the fixing block 201 can be quickly positioned and installed, thus providing solid support for the steel tie rod axial force patch sensor 5 (which transmits signals via Bluetooth interface with an Android industrial control computer through an external Bluetooth junction box). This ensures that the steel tie rod axial force patch sensor 5 maintains a stable posture during monitoring, avoiding problems caused by improper installation of the steel tie rod axial force patch sensor 5. Loosening can cause deviations in monitoring data. Furthermore, the plug-in structure facilitates the disassembly, maintenance, or replacement of the steel tie rod axial force patch sensor 5 without disassembling the entire cantilever steel beam 4 structure, simplifying the operation process, improving equipment maintenance efficiency, and ensuring the continuity and accuracy of the steel tie rod axial force patch sensor 5's monitoring of the stress state of the cantilever steel beam 4. By setting up the upright axial force sensors 3 (four upright axial force sensors are arranged; the miniature spoke-type pressure sensors used for upright axial force monitoring are connected to an external Bluetooth junction box and interface with an Android industrial control computer via Bluetooth for signal transmission), the stress on the uprights of the scaffolding structure 1 can be monitored in real time. The axial force changes are monitored to promptly detect the risk of excessive stress on the uprights due to abnormal loads. Displacement sensor 6 (connected to an Android industrial control computer via a data cable) is fixed to the top of the cantilever steel beam 4, accurately monitoring the settlement and horizontal displacement of the beam ends to reflect the deformation state of the cantilever structure. Inclination sensor 7 (using IoT NB signals, the signal is transmitted to the IoT platform, and the Android industrial control computer retrieves data from the IoT platform after connecting to the 4G network) is placed on the front side of the scaffold structure 1, collecting real-time tilt data of the external facade of the scaffold structure and providing early warning of the risk of overall collapse of the scaffold structure 1. Each sensor is designed to detect changes in axial force. The stress and deformation characteristics of different key parts of the scaffolding are monitored to form a multi-dimensional and comprehensive monitoring system (after the monitoring data is collected, it is compared with the preset threshold. If the limit is exceeded, the system will provide multi-terminal synchronous early warning through on-site alarm on Android terminal structure 21, pop-up alarm in mini program and SMS notification alarm. The data is transmitted to the cloud database in real time and synchronized to the mini program to ensure that the managers can obtain risk information in time and deal with hidden dangers quickly, providing efficient and comprehensive monitoring and early warning support for the safe use of scaffolding). This ensures that the safety hazards of scaffolding structure 1 during use can be detected in time and provides reliable data support for construction safety.

[0030] Specifically, such as Figure 3 As shown, a connecting frame 8 is fixedly connected to the top of the fixed block 201, and a rotating shaft 9 is rotatably connected to the inner wall of the connecting frame 8.

[0031] Specifically, such as Figure 4As shown, an adjustable connecting assembly 22 is fixedly connected to the top of the rotating shaft 9, a steel tie rod axial force patch sensor 5 is disposed on the surface of the adjustable connecting assembly 22, an adjusting assembly 10 is fixedly connected to the top of the adjustable connecting assembly 22, and a pre-installed plate 11 is fixedly connected to the rear side of the adjustable connecting assembly 22.

[0032] Specifically, such as Figure 4 As shown, a pre-installed bolt 12 is movably connected to the inner wall of the pre-installed plate 11, and a nut 13 is threadedly connected to the surface of the pre-installed bolt 12. The rear side of the nut 13 is in close contact with the front side of the pre-installed plate 11.

[0033] In this embodiment: By setting a connecting frame 8 and a rotating shaft 9, the position of the steel tie rod axial force patch sensor 5 is fixed by the rotating shaft 9 during use, allowing the steel tie rod axial force patch sensor 5 to flexibly adjust its monitoring angle around the rotating shaft 9. By setting an adjustable connecting component 22, it is easy to adjust the tension state of the steel tie rod axial force patch sensor 5 during monitoring (the steel tie rod axial force patch sensor 5 uses a vibrating wire strain gauge sensor, with one upper fixing part welded to the steel tie rod and one lower fixing part welded to the steel tie rod, and the vibrating wire strain gauge sensor is fixed on the two fixing parts, and the steel tie rod is compressed or squeezed by the two fixing parts). The data (either tensile or compressive) is transmitted to the vibrating wire strain gauge sensor. Then, the adjustable connection assembly 22 is used to fix the top adjustment assembly 10 to the pre-installed plate 11. The pre-installed bolts 12 and nuts 13 on the inner wall of the pre-installed plate 11 are used to tighten the pre-installed plate 11. The pre-installed bolts 12 can be used to connect and fix the pre-installed plate 11 to the external structure (such as scaffolding auxiliary components), which further enhances the installation stability of the steel tie rod axial force patch sensor 5. At the same time, the detachable design of the nuts 13 facilitates the fine adjustment of the sensor position in the later stage, ensuring that the steel tie rod axial force patch sensor 5 is always in the best monitoring state, and improving the accuracy and reliability of force monitoring of the cantilever steel beam 4.

[0034] Specifically, such as Figure 3 As shown, a knob 14 is movably connected to the inner wall of the fixing bracket 203, and the surface of the knob 14 is threadedly connected to the inner wall of the insert block 202.

[0035] Specifically, such as Figure 3 As shown, the inner wall of the fixing bracket 203 is provided with a mounting hole 15 for use with the knob 14, and the inner wall of the insert block 202 is provided with a threaded hole 16 for use with the knob 14.

[0036] In this embodiment: By setting a knob 14, during use, the knob 14 can be rotated on the inner wall of the fixing frame 203 and the insert 202, which makes it easy to restrict the position of the insert 202 by the knob 14, which facilitates the subsequent stable monitoring of the steel tie rod axial force patch sensor 5. The mounting hole 15 opened in the inner wall of the fixing frame 203 makes it easy for the knob 14 to rotate on the inner wall of the fixing frame 203 through the mounting hole 15. The threaded hole 16 opened in the inner wall of the insert 202 makes it easy for the knob 14 to rotate on the inner wall of the insert 202 through the threaded hole 16. This ensures that the steel tie rod axial force patch sensor 5 maintains a stable installation state during the monitoring process and reduces the deviation of the monitoring data.

[0037] Specifically, such as Figure 5 As shown, a support assembly 17 is fixedly connected to the top of the cantilever steel beam 4, and a protective plate 18 is fixedly connected to the top of the support assembly 17.

[0038] Specifically, such as Figure 6 As shown, a limiting component 19 is fixedly connected to the surface of the scaffold structure 1, and a limiting frame 20 is fixedly connected to the front side of the limiting component 19. The surface of the tilt sensor 7 is inserted into the inner wall of the limiting frame 20.

[0039] In this embodiment: by setting the support component 17 and the protective plate 18, the protective plate 18 can provide physical protection for the displacement sensor 6 at the top of the cantilever steel beam 4, blocking the impact of sand, gravel and debris splashed during construction, and preventing the displacement sensor 6 from being damaged by external force and affecting the monitoring function. The limiting component 19 on the surface of the scaffold structure 1 is fixed to the limiting frame 20. The inner wall of the limiting frame 20 is inserted into the tilt sensor 7, providing a precise installation and positioning benchmark for the tilt sensor 7, preventing the tilt sensor 7 from tilting or shifting due to external force collision, ensuring the accuracy of its tilt data collection of the scaffold structure 1. At the same time, the insertion structure facilitates the quick disassembly and maintenance of the tilt sensor 7, ensuring the continuous and stable operation of the multi-dimensional monitoring system.

[0040] Working principle: During the use of scaffolding structure 1, a fixing mechanism 2 is set up. During use, the bottom of the fixing frame 203 is fixedly connected to the top of the cantilever steel beam 4, providing a stable installation benchmark for the fixing mechanism 2. With the insertion connection of the plug block 202 to the fixing frame 203, the fixing block 201 can be quickly positioned and installed. This provides solid support for the steel tie rod axial force sensor 5 (which transmits signals via Bluetooth interface with an Android industrial control computer through an external Bluetooth junction box), ensuring that the steel tie rod axial force sensor 5 maintains a stable posture during monitoring and preventing damage due to the steel tie rod axial force. The loose installation of the force patch sensor 5 causes monitoring data deviation. Furthermore, the plug-in structure facilitates the later disassembly, maintenance, or replacement of the steel tie rod axial force patch sensor 5 without disassembling the entire cantilever steel beam 4 structure, simplifying the operation process, improving equipment maintenance efficiency, and ensuring the continuity and accuracy of the steel tie rod axial force patch sensor 5 in monitoring the stress state of the cantilever steel beam 4. By setting up the upright axial force sensors 3 (four upright axial force sensors are arranged; the upright axial force monitoring uses miniature spoke-type pressure sensors connected to an external Bluetooth junction box, which interfaces with an Android industrial control computer via Bluetooth for signal transmission), the upright axial force of the scaffolding structure 1 can be monitored in real time. The axial force changes at the pole section can promptly detect the risk of excessive stress on the pole due to abnormal loads. Displacement sensor 6 (connected to an external Android industrial control computer via a data cable) is fixed to the top of the cantilever steel beam 4, accurately monitoring the settlement and horizontal displacement of the beam end, reflecting the deformation state of the cantilever structure. Inclination sensor 7 (using IoT NB signal, the signal is transmitted to the IoT platform, and the Android industrial control computer retrieves data from the IoT platform after connecting to the 4G network) is placed on the front side of the scaffold structure 1, which can collect the tilt data of the external facade of the scaffold in real time, providing early warning of the risk of the overall collapse of the scaffold structure 1. The system monitors the stress and deformation characteristics of different key parts of the scaffolding, forming a multi-dimensional and comprehensive monitoring system. (After the monitoring data is collected, it is compared with the preset threshold. If the limit is exceeded, the system will provide a multi-terminal synchronous early warning through on-site alarms on the Android terminal structure 21, pop-up alarms in the mini program, and SMS notification alarms. The data is also transmitted to the cloud database in real time and synchronized to the mini program, ensuring that managers can obtain risk information in a timely manner and quickly deal with hidden dangers, providing efficient and comprehensive monitoring and early warning support for the safe use of scaffolding.) This ensures that safety hazards of scaffolding structure 1 can be detected in a timely manner during use, providing reliable data support for construction safety.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 scaffold deformation early warning device, comprising a scaffold structure (1), characterized in that: The bottom of the scaffold structure (1) is provided with a pole axial force sensor (3), the bottom of the scaffold structure (1) is provided with a cantilever steel beam (4), the top of the cantilever steel beam (4) is fixedly connected with a fixing mechanism (2), the top of the fixing mechanism (2) is provided with a steel tie rod axial force patch sensor (5), the top of the cantilever steel beam (4) is fixedly connected with a displacement sensor (6), the front side of the scaffold structure (1) is provided with an inclination sensor (7), the fixing mechanism (2) includes a fixing block (201), the front side of the fixing block (201) is fixedly connected with an insert block (202), the surface of the insert block (202) is inserted with a fixing frame (203), the bottom of the fixing frame (203) is fixedly connected to the top of the cantilever steel beam (4), and the bottom of the cantilever steel beam (4) is fixedly connected with a terminal structure (21).

2. The scaffolding deformation early warning device according to claim 1, characterized in that: The top of the fixed block (201) is fixedly connected to a connecting frame (8), and the inner wall of the connecting frame (8) is rotatably connected to a rotating shaft (9).

3. The scaffolding deformation early warning device according to claim 2, characterized in that: An adjustable connecting assembly (22) is fixedly connected to the top of the rotating shaft (9). The steel tie rod shaft force patch sensor (5) is set on the surface of the adjustable connecting assembly (22). An adjusting assembly (10) is fixedly connected to the top of the adjustable connecting assembly (22). A pre-installed plate (11) is fixedly connected to the rear side of the adjustable connecting assembly (22).

4. The scaffolding deformation early warning device according to claim 3, characterized in that: The inner wall of the pre-installed plate (11) is movably connected with a pre-installed bolt (12), and the surface of the pre-installed bolt (12) is threaded with a nut (13), and the rear side of the nut (13) is in close contact with the front side of the pre-installed plate (11).

5. The scaffolding deformation early warning device according to claim 1, characterized in that: A knob (14) is movably connected to the inner wall of the fixing frame (203), and the surface of the knob (14) is threadedly connected to the inner wall of the insert (202).

6. A scaffolding deformation early warning device according to claim 5, characterized in that: The inner wall of the fixing bracket (203) is provided with a mounting hole (15) for use with the knob (14), and the inner wall of the insert (202) is provided with a threaded hole (16) for use with the knob (14).

7. A scaffolding deformation early warning device according to claim 1, characterized in that: The top of the cantilever steel beam (4) is fixedly connected to a support assembly (17), and the top of the support assembly (17) is fixedly connected to a protective plate (18).

8. The scaffolding deformation early warning device according to claim 1, characterized in that: The surface of the scaffold structure (1) is fixedly connected to a limiting component (19), and the front side of the limiting component (19) is fixedly connected to a limiting frame (20). The surface of the tilt sensor (7) is inserted into the inner wall of the limiting frame (20).

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