A construction worker unsafe behavior unmanned aerial vehicle detection device

Abstract

The utility model discloses a kind of unsafe behavior unmanned aerial vehicle detection devices of construction personnel, including unmanned aerial vehicle frame, the lower portion of unmanned aerial vehicle frame is equipped with the assembly component for unsafe behavior detection device assembly, assembly component includes top plate, top plate is installed in the lower portion of unmanned aerial vehicle frame, the lower portion of top plate is provided with rack, rack both sides are equipped with limit plate, and limit plate is provided with three groups.The utility model is by rotating adjusting lever and pushes the rubber plate clamping detection equipment of different sizes, realize flexible fixation;And rack bears detection equipment, and the micro motor of protective plate top end can drive rack rotation, drive detection equipment adjustment angle, expand adaptability and detection range.

Description

Technical Field

[0001] This utility model relates to the field of unsafe behavior detection technology, specifically a drone detection device for unsafe behaviors of construction workers. Background Technology

[0002] In the construction of projects in fields such as building, transportation, and energy, the standardization of construction workers' operations is directly related to construction safety and project quality. As the scale of modern projects continues to expand, construction scenarios are gradually showing characteristics such as large spatial span, complex working environment, and frequent personnel movement, which puts forward higher requirements for the real-time monitoring and control of unsafe behaviors of construction workers.

[0003] Existing drone inspection devices cannot be adapted to inspection equipment of different sizes and types. Customized drone assembly components are required for specific inspection equipment, resulting in low versatility. After assembly, the position of the inspection equipment is fixed, making it difficult to adjust the angle or position according to the construction scenario, thus limiting the inspection range. In addition, when traditional drones carry inspection equipment, if the inspection position needs to be adjusted laterally, it is often necessary to move the entire drone, which is not only complicated to operate, but also prone to reducing the inspection accuracy due to drone displacement, and there are many lateral inspection blind spots. Utility Model Content

[0004] The purpose of this invention is to provide a drone detection device for unsafe behaviors of construction workers, which has the advantages of high flexibility and good adaptability, and solves the problems in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drone detection device for unsafe behaviors of construction workers includes a drone frame. An assembly assembly for assembling the unsafe behavior detection device is installed below the drone frame. The assembly assembly includes a top plate installed below the drone frame. A placement frame is provided below the top plate. Limiting plates are installed on both sides of the placement frame, and three sets of limiting plates are provided.

[0007] Preferably, the assembly also includes an adjusting rod rotatably connected to the opposite side of the limiting plate, a rubber plate bearing connected to the opposite side of the adjusting rod, and a protective plate provided at the top of the placement frame.

[0008] It is worth noting that the rotating connection design between the limiting plate and the adjusting rod allows for flexible adjustment of the angle and position of the adjusting rod, making it convenient to adapt to the placement needs of components of different specifications. The rubber plate connected to the bearing at the end of the adjusting rod reduces the frictional resistance when the component contacts the rubber plate, preventing damage to the component surface due to friction. On the other hand, the rubber material has good cushioning performance, which can effectively absorb external vibrations or impacts when the component is placed, providing double protection for the component. The protective plate at the top of the placement rack can prevent dust and debris from falling into the placement rack from above, and at the same time, it can provide additional protection for the components inside the placement rack in the event of accidental collisions, further improving the safety and stability of component storage.

[0009] Preferably, a micro motor is installed at the middle position of the top of the protective plate, and the output end of the micro motor is connected to the placement frame. Slider blocks are fixedly connected to both sides of the top of the protective plate, and the sliders are located on both sides of the micro motor.

[0010] It is worth noting that the structure in which the micro motor is installed on the top of the protective plate and its output end is connected to the placement frame allows the placement frame to achieve stable lifting or angle adjustment through the precise drive of the micro motor, eliminating the need for manual operation. This not only saves labor costs but also ensures the accuracy and consistency of the adjustment process, meeting the high precision requirements for component positioning in UAV assembly. The slider design on both sides of the protective plate guides the movement of the protective plate and placement frame, preventing deviations and swaying during movement and ensuring the stability of the motion trajectory. On the other hand, the sliders can disperse the force generated by the micro motor drive, reducing the stress on individual components and extending the service life of the overall structure.

[0011] Preferably, side plates are fixedly connected to both sides of the bottom end of the top plate, and a servo motor is installed on the left side of the left side plate.

[0012] It is worth noting that the structure of the fixed side plates on both sides of the bottom of the top plate can form a stable frame support structure, providing a reliable installation foundation for subsequent installation of components such as lead screws and guide rods. At the same time, the side plates can shield and protect the internal transmission components, preventing external factors from interfering with the transmission process. The design of installing the servo motor on the left side plate concentrates the power source on one side, which facilitates the layout and organization of the motor circuit, reduces the risk of failure caused by messy wiring, and the servo motor has the characteristics of controllable speed and precise positioning, which can provide stable and high-precision power output for subsequent lead screw transmission, ensuring the operating accuracy of the entire transmission system and adapting to the high requirements for component movement in UAV assembly.

[0013] Preferably, the output end of the servo motor is connected to a lead screw, and the slider is slidably connected to the outside of the lead screw.

[0014] It is worth noting that the direct connection between the servo motor and the lead screw minimizes energy loss during power transmission, ensuring efficient power transfer from the servo motor to the lead screw and improving transmission efficiency. The sliding connection structure between the slider and the lead screw utilizes the high-precision characteristics of the lead screw drive to achieve smooth and precise movement of the slider along the lead screw axis with minimal displacement error. This meets the millimeter-level or even higher precision requirements for component position adjustment in UAV assembly. Furthermore, the lead screw drive has a self-locking function, ensuring the slider remains stably in its current position when the servo motor stops, preventing displacement due to external forces and guaranteeing component position stability to avoid affecting assembly accuracy.

[0015] Preferably, a guide rod is connected between the side plates, and the guide rod is located at the rear end of the lead screw. The slider is slidably connected to the outside of the guide rod. A guide groove is opened on the surface of the bottom end of the drone frame, and the slider is slidably connected to the guide groove.

[0016] It is worth noting that the guide rods added between the side plates cooperate with the lead screw to form a dual-axis guiding structure, which can further enhance the stability of the slider movement and avoid problems such as tilting and jamming of the slider due to unilateral force during lead screw transmission, ensuring that the slider always moves smoothly in the horizontal direction. The design of the slider slidingly connected to the guide rods and guide grooves, through multiple guiding limits, further restricts the slider's degree of freedom. The slider's offset and wobbling during movement ensure that the placement frame and other components driven by the slider can accurately reach the designated position. In addition, the guide groove is opened at the bottom of the drone frame, which allows the movement of the slider to form a tight fit with the structure of the drone frame, improving the compactness of the overall assembly structure and reducing space occupation.

[0017] Preferably, shock absorbers are installed on both sides of the top of the top plate. Each shock absorber includes a shock absorber spring and a shock absorber rod, and a mounting rod is provided at the top of the shock absorber.

[0018] It is worth noting that the shock absorber brackets on both sides of the top plate adopt a combination of shock absorber springs and shock absorber rods, which have excellent shock absorption and buffering performance. They can effectively absorb the vibration generated by the UAV during flight or the impact force during ground transportation and assembly operations, preventing the vibration from being transmitted to the placement rack and components below. This prevents components from becoming loose, damaged, or having precision deviations due to long-term vibration, ensuring the integrity of the components and assembly accuracy. The mounting rod design at the top of the shock absorber bracket provides a convenient and reliable interface for connecting the shock absorber bracket to other structures of the UAV. The structure of the mounting rod can be flexibly adjusted in size and shape according to actual installation needs to adapt to different connection requirements. At the same time, the integrated design of the mounting rod and the shock absorber bracket ensures the stability of the connection and prevents the shock absorber bracket from detaching from other components when under stress.

[0019] Preferably, fixed wings are provided at the top of the four corners of the drone frame, and fixed frames are fixedly connected to both sides of the drone frame, with the mounting rod installed inside the fixed frames.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This utility model unsafe behavior detection device is placed on a mounting frame. According to the size of the detection device, the adjusting rod on the opposite side of the limiting plate is rotated, pushing the rubber plate connected to the bearing on the opposite side of the adjusting rod until the rubber plates corresponding to the three sets of limiting plates are tightly attached to the outer wall of the detection device, thus completing the limiting and fixing of the detection device. By rotating the adjusting rod, the rubber plates are pushed to clamp detection equipment of different sizes, achieving flexible fixing. The mounting frame carries the detection equipment, and the micro motor at the top of the protective plate can drive the mounting frame to rotate, causing the detection equipment to adjust its angle, thus expanding its adaptability and detection range. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0023] Figure 2 This is a bottom-view perspective view of the present invention;

[0024] Figure 3 This is a three-dimensional disassembled view of the drone and assembly components of this utility model.

[0025] Figure 4 This is a first perspective view of the assembly components of this utility model;

[0026] Figure 5 This is a second perspective view of the assembly components of this utility model;

[0027] Figure 6 This is a partial perspective view of the assembly components of this utility model.

[0028] Figure label:

[0029] 1. UAV frame; 2. Fixed wing; 3. Fixing frame; 401. Top plate; 402. Placement frame; 403. Limiting plate; 404. Adjusting rod; 405. Rubber plate; 406. Protective plate; 407. Micro motor; 408. Slider; 409. Side plate; 410. Servo motor; 411. Lead screw; 412. Guide rod; 413. Shock absorber frame; 414. Mounting rod; 415. Guide groove. Detailed Implementation

[0030] 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.

[0031] In the construction, municipal, and transportation engineering sectors, unsafe behaviors of construction workers are one of the core causes of safety accidents. These unsafe behaviors typically fall into three categories: violations of operating procedures, lack of protective equipment, and violations of regulations. Specifically, they include failing to wear personal protective equipment such as safety helmets and safety belts as required, standing or crossing guardrails on the edge of high-altitude work platforms, operating lifting machinery or temporary electrical equipment in violation of regulations, smoking or using open flames in flammable and explosive areas, and entering confined spaces without permission. Such behaviors not only directly threaten the lives of construction workers but may also trigger a chain of accidents such as collapses, falls, fires, and electric shocks, causing equipment damage, project delays, and even negative social impacts.

[0032] The current construction environment is characterized by dispersed work areas, frequent personnel movement, and dense overlapping operations. The traditional supervision model relying on on-site inspections by safety officers has significant limitations. On the one hand, large-scale construction projects often involve multiple work areas, making it difficult for a single or small number of safety officers to achieve dynamic supervision around the clock and with full coverage, resulting in blind spots in supervision. On the other hand, manual inspections are limited by personnel's energy, visual range, and subjective judgment. For high-risk scenarios such as working at heights and deep foundation pits, inspections are difficult and pose safety risks themselves. At the same time, it is difficult to effectively identify and record instantaneous and hidden unsafe behaviors. In addition, manual inspections rely heavily on paper ledgers or photographs for recording, resulting in low data processing efficiency and an inability to form a systematic behavioral analysis database. This makes it difficult to trace the root causes of unsafe behaviors, leading to safety management work being mostly in a passive state of "post-event rectification" and failing to achieve the core goal of "prevention before the event."

[0033] To address the need for detecting unsafe behaviors of construction workers, existing technologies are mainly divided into three categories: manual detection, fixed monitoring detection, and preliminary intelligent detection. However, they all have significant shortcomings in terms of detection efficiency, coverage, and recognition accuracy, making it difficult to meet the safety supervision requirements in complex construction scenarios.

[0034] Manual inspection is currently the most widely used traditional inspection method. It involves assigning dedicated safety officers to periodically patrol or maintain fixed positions within the construction area to observe whether the workers' actions comply with safety regulations. However, this method has inherent limitations: First, it is costly in terms of manpower. Large construction projects require a large number of safety officers to cover the main work areas, and it is difficult to achieve 24-hour continuous monitoring. Second, it is inefficient. Safety officers have limited patrol range and speed, making it difficult to quickly reach and monitor dispersed work areas or special areas such as high-altitude or deep foundation pits. Third, the accuracy of identification depends on individual experience. Different safety officers have different safety awareness and judgment standards, which can easily lead to missed or incorrect judgments, especially for momentary unsafe behaviors, which are difficult to detect and record in a timely manner. Fourth, it lacks traceability. Manual inspection records are mostly paper ledgers or simple photographs, lacking a complete data chain including the time, location, and process of the behavior. This makes it difficult to accurately trace responsibility after an accident and fails to provide effective data support for subsequent safety management optimization.

[0035] Fixed monitoring involves installing fixed cameras within a construction area to achieve real-time monitoring of specific areas through a video surveillance system, which to some extent compensates for the coverage limitations of manual inspection. However, this technology still has significant shortcomings: First, the monitoring range is fixed, and the camera's shooting angle and field of view are limited, only covering a specific area around its installation location. For dynamically changing work surfaces or temporary work areas, the monitoring range cannot be flexibly adjusted, easily creating blind spots in supervision. Second, it has poor environmental adaptability. Construction scenarios often involve complex environmental factors such as dust, water mist, strong light, and backlighting, which easily affect the image quality of fixed cameras, resulting in blurry images and an inability to clearly identify details of personnel behavior. Third, it has a low level of intelligence. Existing fixed monitoring systems mostly only have video storage and real-time display functions, requiring manual viewing of video footage for behavior recognition. It still relies on human labor, and prolonged viewing can easily lead to fatigue of monitoring personnel, causing missed detections. Fourth, the installation and maintenance costs are high. For large-scale construction projects, a large number of cameras are needed to cover the main areas, and these cameras are easily damaged by collisions and vibrations from construction machinery, making subsequent maintenance difficult and costly.

[0036] In recent years, with the development of computer vision technology, preliminary intelligent detection technology has begun to be applied to the detection of unsafe behaviors by construction workers. By integrating simple image recognition algorithms into fixed monitoring systems, it is possible to automatically identify some typical unsafe behaviors. However, this technology is still in its early stages and has obvious technical bottlenecks: First, the recognition types are limited, and existing algorithms mostly target only one or a few specific unsafe behaviors, unable to simultaneously identify multiple complex unsafe behaviors. Second, the recognition accuracy is low, and the algorithms have poor adaptability to complex environments, easily resulting in misidentification or missed identification in environments such as dust and strong light. Third, the detection range is limited, still relying on the installation location of fixed cameras, unable to achieve mobile detection, and unable to effectively detect work areas without fixed monitoring coverage. Fourth, the real-time performance is poor, and some intelligent detection systems need to transmit video data to a backend server for offline analysis, resulting in data delays and the inability to provide real-time warnings, leading to the inability to deal with safety hazards in a timely manner.

[0037] Furthermore, existing detection technologies generally lack deep adaptability to construction scenarios, failing to consider the behavioral recognition needs in complex scenarios such as dynamic operations of construction workers and cross-operations between machinery and personnel, and failing to form a complete closed loop of "detection-early warning-handling-traceability." With the expansion of engineering construction scale and the improvement of safety supervision requirements, existing detection technologies can no longer meet the detection needs of modern construction safety management for "full coverage, high precision, real-time, and intelligent" detection. It is necessary to develop a detection technology that can flexibly adapt to complex construction environments, achieve mobile full coverage detection, and has high-precision multi-type behavior recognition capabilities to improve the efficiency and accuracy of detecting unsafe behaviors of construction workers and provide strong technical support for construction safety supervision.

[0038] To address the issues of poor assembly flexibility and insufficient adaptability in existing technologies, the following technical solution is proposed. Please refer to [link / reference]. Figures 1-6 ;

[0039] A drone detection device for unsafe behaviors of construction workers includes a drone frame 1. An assembly assembly for assembling the unsafe behavior detection device is installed below the drone frame 1. The assembly assembly includes a top plate 401, which is installed below the drone frame 1. A placement frame 402 is provided below the top plate 401. Limiting plates 403 are installed on both sides of the placement frame 402, and three sets of limiting plates 403 are provided. Fixed wings 2 are provided at the top of the four corners of the drone frame 1. Fixed frames 3 are fixedly connected to both sides of the drone frame 1, and mounting rods 414 are installed in the fixed frames 3.

[0040] The assembly also includes an adjusting rod 404 rotatably connected to the opposite side of the limiting plate 403, a rubber plate 405 bearing connected to the opposite side of the adjusting rod 404, a protective plate 406 at the top of the placement frame 402, a micro motor 407 installed at the middle position of the top of the protective plate 406, and the output end of the micro motor 407 connected to the placement frame 402, sliders 408 fixedly connected to both sides of the top of the protective plate 406, and sliders 408 located on both sides of the micro motor 407; side plates 409 fixedly connected to both sides of the bottom of the top plate 401, a servo motor 410 installed on the left side of the left side plate 409; the output end of the servo motor 410 connected to a lead screw 411, and sliders 408 slidably connected to the outside of the lead screw 411; A guide rod 412 is connected between the side plates 409, and the guide rod 412 is located at the rear end of the lead screw 411. The slider 408 is slidably connected to the outside of the guide rod 412. A guide groove 415 is opened on the surface of the bottom end of the drone frame 1, and the slider 408 is slidably connected in the guide groove 415. Shock absorber frames 413 are installed on both sides of the top of the top plate 401. The shock absorber frame 413 includes a shock absorber spring and a shock absorber rod. An installation rod 414 is provided at the top of the shock absorber frame 413. From the placement frame 402 to the protective plate 406 and then to the top plate 401, a multi-level load-bearing structure is formed. With the limiting plate 403 limiting the adjustment rod 404, it can stably support the weight of the drone components and avoid overload of a single structure. The rubber plate 405 is connected to the adjustment rod via bearings. The rod 404 connection not only adapts to the component's installation angle through bearing rotation, but the rubber material also buffers the impact force during contact, reducing damage to the component from hard collisions. The protective plate 406 covers the top of the mounting bracket 402, preventing external dust and debris from entering the core component below, and also provides cushioning protection in the event of an accidental collision. The guide groove 415 at the bottom of the drone frame 1 cooperates with the slider 408, providing precise guidance for the slider 408's sliding, preventing the slider 408 from deviating during movement, and further improving the overall structural stability. The micro motor 407 is installed on the top of the protective plate 406 and connected to the mounting bracket 402, which can drive the mounting bracket 402 to make fine-tuning angle adjustments to meet the angle adaptation during drone component installation or operation. Requirements: The servo motor 410 drives the slider 408 to slide via the lead screw 411. The servo motor 410 itself has high-precision control characteristics, which can accurately control the movement distance of the slider 408, thereby driving the protective plate 406, the placement rack 402 and other structures to move synchronously and accurately, adapting to the installation or working requirements of components in different positions. The slider 408 is simultaneously sleeved on the outside of the lead screw 411 and the guide rod 412. The lead screw 411 is responsible for providing driving force, while the guide rod 412 plays an auxiliary guiding role, preventing the slider 408 from shaking or getting stuck due to unilateral force during the sliding process. In addition, the guide groove 415 limits the slider 408, forming a triple guiding structure, which greatly improves the accuracy and stability of the sliding adjustment, ensuring that the adjustment process is smooth and without deviation.The shock absorber frame 413 at the top of the top plate 401 consists of a shock absorber spring and a shock absorber rod. These dual shock absorbers work synergistically: the shock absorber spring quickly absorbs the longitudinal vibrations generated during UAV operation, while the shock absorber rod limits the lateral displacement of the vibrations, preventing vibration from being transmitted to the core adjustment structure below the top plate 401. This reduces the impact of vibration on precision components such as the micro motor 407 and servo motor 410, extends the equipment's lifespan, and ensures that adjustment accuracy is not affected by vibration.

[0041] Working principle: Unsafe behavior detection devices, such as high-definition cameras and AI recognition modules, are placed on the placement rack 402. Based on the size of the detection device, the adjusting rod 404 on the opposite side of the limiting plate 403 is rotated, pushing the rubber plate 405 connected to the bearing on the opposite side of the adjusting rod 404 until the rubber plates 405 corresponding to the three sets of limiting plates 403 are tightly fitted against the outer wall of the detection device, completing the limiting and fixing of the detection device. The rubber plates 405 prevent scratches to the detection device during the fixing process. The shock-absorbing frames 413 on both sides of the top of the top plate 401 are connected to the mounting rod 414. The mounting rod 414 is installed in the fixing frame 3 fixedly connected to both sides of the drone frame 1, completing the process. The assembly components are connected to the UAV frame 1 as a whole; the shock-absorbing springs and shock-absorbing rods of the shock-absorbing frame 413 are adjusted to simulate slight vibrations during flight, ensuring that the shock-absorbing structure can effectively buffer vibrations and avoid affecting the recognition accuracy of the detection device; at the same time, the sliding block 408 is checked to ensure that it slides flexibly. The sliding block 408 is fixed to both sides of the top of the protective plate 406 and is slidably connected to the outside of the lead screw 411 and the outside of the guide rod 412, respectively. The guide rod 412 is connected between the two side plates 409 and is located at the rear end of the lead screw 411. The side plates 409 are fixed to both sides of the bottom end of the top plate 401; the UAV is controlled to take off, and the UAV is lifted, lowered, and translated by the operation of the fixed wings 2, which drives the detection on the assembly components. When the testing device reaches the airspace above the construction area, the shock absorber 413 continuously functions during flight to buffer the vibrations generated by the drone's flight and ensure stable operation of the testing device. If it is necessary to adjust the lateral detection range of the testing device, the servo motor 410 on the left side plate 409 is activated. The output of the servo motor 410 drives the lead screw 411 to rotate. Since the slider 408 is slidably connected to the outside of the lead screw 411, the rotation of the lead screw 411 drives the slider 408 to slide along the direction of the lead screw 411. Simultaneously, the slider 408 slides synchronously on the outside of the guide rod 412 to prevent the slider 408 from shifting. When the slider 408 slides, it drives the protective plate 406, the placement frame 402, and other components fixed to it. The detection device moves synchronously, and the slider 408 slides simultaneously within the guide groove 415 opened on the bottom surface of the UAV frame 1, further ensuring the stability of the adjustment process until the detection device reaches the target lateral detection position, at which point the servo motor 410 is turned off. If it is necessary to adjust the vertical detection angle of the detection device, the micro motor 407 at the middle position of the top of the protective plate 406 is started. The output end of the micro motor 407 is connected to the placement frame 402. The forward and reverse rotation of the micro motor 407 drives the placement frame 402 to rotate around the connection point, thereby driving the detection device to adjust the vertical tilt angle to meet the detection needs of construction areas at different heights. After the angle is adjusted to the correct position, the micro motor 407 is turned off.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A drone detection device for unsafe behaviors of construction workers, comprising a drone frame (1), characterized in that, An assembly assembly for assembling an unsafe behavior detection device is installed below the drone frame (1). The assembly assembly includes a top plate (401), which is installed below the drone frame (1). A placement rack (402) is provided below the top plate (401). Limiting plates (403) are installed on both sides of the placement rack (402), and the limiting plates (403) are provided in three sets.

2. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 1, characterized in that, The assembly also includes an adjusting rod (404) rotatably connected to the opposite side of the limiting plate (403), a rubber plate (405) bearing connected to the opposite side of the adjusting rod (404), and a protective plate (406) provided at the top of the placement rack (402).

3. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 2, characterized in that, A micro motor (407) is installed at the middle position of the top of the protective plate (406), and the output end of the micro motor (407) is connected to the placement frame (402). Slider (408) is fixedly connected to both sides of the top of the protective plate (406), and the slider (408) is located on both sides of the micro motor (407).

4. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 3, characterized in that, Side plates (409) are fixedly connected to both sides of the bottom end of the top plate (401), and a servo motor (410) is installed on the left side of the left side plate (409).

5. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 4, characterized in that, The output end of the servo motor (410) is connected to the lead screw (411), and the slider (408) is slidably connected to the outside of the lead screw (411).

6. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 5, characterized in that, A guide rod (412) is connected between the side plates (409), and the guide rod (412) is located at the rear end of the lead screw (411). The slider (408) is slidably connected to the outside of the guide rod (412). A guide groove (415) is opened on the surface of the bottom end of the drone frame (1), and the slider (408) is slidably connected to the guide groove (415).

7. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 6, characterized in that, Both sides of the top of the top plate (401) are equipped with shock absorber frames (413). The shock absorber frame (413) includes a shock absorber spring and a shock absorber rod. The top of the shock absorber frame (413) is provided with an installation rod (414).

8. The unmanned aerial vehicle (UAV) detection device for unsafe behaviors of construction workers according to claim 7, characterized in that, The top of the four corners of the drone frame (1) is provided with fixed wings (2), and fixed frames (3) are fixedly connected to both sides of the drone frame (1), and the mounting rod (414) is installed in the fixed frame (3).

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