Safety prompting device for building safety
By using a motor-driven lead screw lifting mechanism and an L-shaped positioning block, combined with an infrared sensor and an audible and visual alarm, the height of the building safety warning device can be electrically adjusted and it can be fixed in multiple shapes. This solves the problems of laborious operation and poor applicability of existing devices, and enhances the safety management capabilities of construction sites.
Patent Information
- Application Number
- CN202522005176.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-18
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2035-09-18
AI Technical Summary
The height adjustment of existing building safety warning devices relies on manual operation, which is time-consuming and labor-intensive. It is difficult to adapt to warning signs of different shapes and lacks active early warning functions, which cannot meet the safety management needs of modern construction sites.
The height is electrically adjusted by using a DC geared motor to drive the lead screw for lifting. Combined with the positioning mechanism of L-shaped positioning blocks and clamping bolts, it integrates an active reminder system with infrared sensors and audible and visual alarms, enabling one-button height adjustment and multi-shape adaptive fixing, and has an active warning function.
It reduces the labor intensity of workers, improves work efficiency, enhances the safety capabilities of construction sites, adapts to the installation of signs of various shapes and sizes, and has an active safety reminder function.
Smart Images

Figure CN223481706U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building safety technology, and in particular to a safety warning device for building safety. Background Technology
[0002] Construction refers to the production activities during the implementation phase of an engineering project. It is the process of building various types of structures, or the process of turning the lines on design drawings into a physical object at a designated location. However, construction sites are often dangerous, so safety management must be strengthened. Warning signs should be set up around the construction site, and construction information should be displayed to prevent people from accidentally entering.
[0003] Patent CN217157551U discloses a safety warning device for construction safety. By incorporating lifting, adjustment, and positioning mechanisms, it solves the problems of traditional warning signs being unreusable, inconvenient for fixing warning boards of different sizes, and having a fixed height. However, this device still has shortcomings: First, its height adjustment relies on manual cranking, which is not only time-consuming and labor-intensive but also difficult to reach when installed at a high position; second, the device is fixed by four corner clamps, making it only suitable for rectangular or square warning signs with parallel sides, and inconvenient for use with warning signs of different shapes, resulting in poor applicability; finally, its warning method is entirely passive, unable to provide proactive early warnings based on unexpected situations on site, making it difficult to meet the safety management needs of modern construction sites.
[0004] Therefore, it is necessary to provide a new safety warning device for building safety to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a safety warning device for building safety.
[0006] The safety warning device for building safety provided by this utility model includes: a fixed base, a height adjustment mechanism, a warning plate, a positioning mechanism, and an active reminder mechanism. The fixed base is connected to the height adjustment mechanism, which includes a limit sleeve, a DC geared motor, a lead screw, a nut block, a connecting block, and a mounting plate. The limit sleeve is fixedly connected to the lower surface of the fixed base, and sliding cavities are provided on both sides of the limit sleeve. The DC geared motor is mounted on the upper surface of the fixed base. The output end of the DC geared motor passes through the upper surface of the fixed base and is fixedly connected to the lead screw via a coupling. The lead screw is rotatably connected to the lower surface of the limit sleeve. A nut block is threaded onto the lead screw, and connecting blocks are fixedly connected to both sides of the nut block. The connecting blocks pass through adjacent sliding cavities and are fixedly connected to the mounting plate. The mounting plate has evenly distributed threaded holes. A warning plate is located on the front end of the mounting plate. Multiple evenly distributed positioning mechanisms are connected to the front end of the mounting plate. Each positioning mechanism includes an L-shaped positioning block, a fixing bolt, and a clamping bolt. The L-shaped positioning block is threadedly connected to a fixing bolt, with the other end of the fixing bolt threaded into a threaded hole. A clamping bolt is threaded onto the L-shaped positioning block. An active reminder mechanism is connected to the mounting base. This active reminder mechanism includes an infrared sensor, an audible and visual alarm, and a microcontroller. An infrared sensor is installed on the front end of the limiting sleeve. An audible and visual alarm and a microcontroller are also installed on the front end of the limiting sleeve. The infrared sensor and the audible and visual alarm are electrically connected to the microcontroller.
[0007] Preferably, a three-position control switch is also installed on the front end face of the fixed base, and the three-position control switch is electrically connected to the DC geared motor.
[0008] Preferably, a protective cover is fixedly connected to the front end face of the fixed base, and the microcontroller and the three-position control switch are both located inside the protective cover.
[0009] Preferably, the front end face of the protective cover has an operating port, and a matching cover door is installed inside the operating port.
[0010] Preferably, the upper surface of the fixed base is fixedly connected to two symmetrical connecting seats, and the connecting seats are provided with connecting holes.
[0011] Preferably, one end of the clamping bolt is fitted with a rubber sleeve.
[0012] Preferably, both sides of the protective cover are provided with uniformly distributed heat dissipation fins that are fixedly connected.
[0013] Compared with related technologies, the safety warning device for building safety provided by this utility model has the following beneficial effects:
[0014] 1. This utility model provides a safety warning device for building safety. By setting a DC geared motor controlled by a three-position control switch to drive the lead screw to lift, the height of the warning board is electrically and one-buttonly adjusted. Compared with the traditional manual adjustment or fixed height design, this device greatly reduces the labor intensity of workers and improves work efficiency. It is especially suitable for occasions where warning information needs to be frequently changed or adjusted.
[0015] 2. This utility model provides a safety warning device for construction safety. Through a unique positioning mechanism, it uses multiple freely arrangable L-shaped positioning blocks and clamping bolts in combination, breaking through the limitation of traditional clamps that can only fix warning signs of specific shapes. It can stably install warning signs of various shapes and sizes such as round, triangular, and square, realizing multi-purpose use and strong versatility, and bringing great convenience to material management on construction sites.
[0016] 3. This utility model provides a safety warning device for building safety, which integrates an active warning mechanism consisting of an infrared sensor, a microcontroller, and an audible and visual alarm. This upgrades the device from a static and passive information display tool to a warning device that can actively remind people who have accidentally entered dangerous areas, thereby enhancing the active safety capabilities of the construction site. Attached Figure Description
[0017] Figure 1 It is a structural diagram of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure inside the protective cover in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure inside the limiting sleeve in this utility model;
[0020] Figure 4 This is a schematic diagram of the positioning mechanism in this utility model.
[0021] The following are the labels in the diagram: 1. Fixed base; 2. Connecting base; 3. Connecting hole; 4. Limit sleeve; 5. DC geared motor; 6. Lead screw; 7. Nut block; 8. Connecting block; 9. Slide cavity; 10. Mounting plate; 11. Threaded hole; 12. Indicator plate; 13. Microcontroller; 14. Three-position control switch; 15. L-shaped positioning block; 16. Audible and visual alarm; 17. Protective cover; 18. Cover door; 19. Rubber sleeve; 20. Infrared sensor; 21. Fixing bolt; 22. Clamping bolt. Detailed Implementation
[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.
[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 It is a structural diagram of the utility model; Figure 2 This is a schematic diagram of the structure inside the protective cover in this utility model; Figure 3 This is a schematic diagram of the structure inside the limiting sleeve in this utility model; Figure 4 This is a schematic diagram of the positioning mechanism in this utility model. It includes: a fixed base 1, a height adjustment mechanism, a prompting plate 12, a positioning mechanism, and an active reminder mechanism.
[0024] refer to Figure 1 and Figure 3 As shown, a height adjustment mechanism is connected to the fixed base 1. The height adjustment mechanism includes a limiting sleeve 4, a DC geared motor 5, a lead screw 6, a nut block 7, a connecting block 8, and a mounting plate 10. The limiting sleeve 4 is fixedly connected to the lower surface of the fixed base 1. Sliding cavities 9 are provided on both sides of the limiting sleeve 4. The DC geared motor 5 is installed on the upper surface of the fixed base 1. The output end of the DC geared motor 5 passes through the upper surface of the fixed base 1 and is fixedly connected to the lead screw 6 through a coupling. The lead screw 6 is rotatably connected to the lower surface of the limiting sleeve 4. The nut block 7 is threaded on the lead screw 6. Connecting blocks 8 are fixedly connected to both sides of the nut block 7. The connecting block 8 passes through the adjacent sliding cavity 9 and is fixedly connected to the mounting plate 10. The mounting plate 10 is provided with evenly distributed threaded holes 11. A prompting plate 12 is provided on the front end face of the mounting plate 10. A three-position control switch 14 is also installed on the front end face of the fixed base 1. The three-position control switch 14 is electrically connected to the DC geared motor 5.
[0025] It should be noted that: First, the mounting base 1 is installed on the wall, column or other suitable support structure of the construction site. When the height of the indicator plate 12 needs to be adjusted, the operator can control it through the three-position control switch 14 on the front face of the mounting base 1, which can power the DC geared motor 5 to make it rotate forward or reverse. The screw 6 is driven to rotate through the coupling. Since the nut block 7 is threadedly connected to the screw 6 and the connecting blocks 8 on both sides are restricted in the sliding cavity 9 of the limit sleeve 4, the nut block 7 cannot rotate with the screw 6. It can only move up and down linearly along the axis of the screw 6. The lifting and lowering of the nut block 7 drives the mounting plate 10 fixed to it and all the components on the plate, including the indicator plate 12, to lift and lower synchronously, thereby realizing the electric adjustment of the height.
[0026] refer to Figure 1 and Figure 4As shown, the front end face of the mounting plate 10 is connected to a plurality of evenly distributed positioning mechanisms. The positioning mechanism includes an L-shaped positioning block 15, a fixing bolt 21 and a clamping bolt 22. The front end face of the mounting plate 10 is provided with an L-shaped positioning block 15. The L-shaped positioning block 15 is threadedly connected to the fixing bolt 21. The other end of the fixing bolt 21 is threaded into the threaded hole 11. The L-shaped positioning block 15 is threadedly connected to the clamping bolt 22.
[0027] It should be noted that the positioning mechanism can easily fix various shapes and sizes of indicator plates 12. During operation, the indicator plate 12 is first placed on the front end of the mounting plate 10. According to the size of the indicator plate 12, multiple L-shaped positioning blocks 15 are screwed into the pre-set threaded holes 11 on the mounting plate 10 through the fixing bolts 21 on them to complete the general layout. Then, the clamping bolts 22 on each positioning block are tightened one by one. The ends of the clamping bolts 22 will tightly abut against the edge of the indicator plate 12. Through the combined force of three or more points, the indicator plate 12 is firmly clamped and fixed on the mounting plate 10.
[0028] refer to Figure 1 and Figure 2 As shown, an active reminder mechanism is connected to the fixed base 1. The active reminder mechanism includes an infrared sensor 20, an audible and visual alarm 16, and a microcontroller 13. The front end of the limiting sleeve 4 is equipped with an infrared sensor 20, an audible and visual alarm 16, and a microcontroller 13. The infrared sensor 20 and the audible and visual alarm 16 are both electrically connected to the microcontroller 13.
[0029] It should be noted that during use, the infrared sensor 20 installed at the front end of the limit sleeve 4 will continuously detect the area in front of it. Under normal conditions, the device remains silent. When a worker, vehicle or other moving object enters its detection range, the infrared sensor 20 will immediately send a trigger signal to the microcontroller 13. After receiving the signal, the microcontroller 13 will immediately execute the preset program and drive the audible and visual alarm 16 to emit a loud alarm sound and a high-frequency flashing warning light to actively and strongly remind the people approaching to pay attention to safety.
[0030] refer to Figure 1 As shown, a protective cover 17 is fixedly connected to the front end face of the fixed base 1. The microcontroller 13 and the three-position control switch 14 are both located inside the protective cover 17. The protective cover 17 is used to isolate and protect the microcontroller 13 and the three-position control switch 14 inside.
[0031] refer to Figure 1 As shown, the front end face of the protective cover 17 is provided with an operation port, and a matching cover door 18 is installed inside the operation port. The cover door 18 is provided to prevent operation of the electrical components inside the protective cover 17.
[0032] refer to Figure 1 As shown, two symmetrical connecting seats 2 are fixedly connected to the upper surface of the fixed seat 1. The connecting seats 2 are provided with connecting holes 3. The fixed seat 1 is conveniently installed and fixed through the connecting seats 2 with connecting holes 3.
[0033] refer to Figure 4 As shown, a rubber sleeve 19 is fitted on one end of the clamping bolt 22. The rubber sleeve 19 provides a buffer protection for the indicator plate 12.
[0034] Both sides of the protective cover 17 are provided with uniformly distributed heat dissipation fins that are fixedly connected to it. The heat dissipation fins improve the heat dissipation capacity of the protective cover 17.
[0035] The working principle of this utility model is as follows: First, the fixing base 1 is installed on the wall, column or other suitable support structure of the construction site. When the height of the indicator plate 12 needs to be adjusted, the operator can control it through the three-position control switch 14 on the front end of the fixing base 1, which can power the DC geared motor 5 to make it rotate forward or reverse. The screw 6 is driven to rotate through the coupling. Since the nut block 7 is threadedly connected to the screw 6 and the connecting blocks 8 on both sides are restricted in the sliding cavity 9 of the limit sleeve 4, the nut block 7 cannot rotate with the screw 6, but can only move up and down linearly along the axis of the screw 6. The lifting and lowering of the nut block 7 drives the mounting plate 10 and all the components on the plate, including the indicator plate 12, to lift and lower synchronously, thereby realizing the electric adjustment of the height. This utility model realizes the electric and one-button adjustment of the height of the indicator plate 12 by setting the DC geared motor 5 controlled by the three-position control switch 14 to drive the screw 6 to lift and lower. Compared with the traditional manual adjustment or fixed height design, this device greatly reduces the labor intensity of workers and improves the work efficiency, especially suitable for occasions where the warning information needs to be frequently changed or adjusted.
[0036] During use, the infrared sensor 20 installed at the front end of the limiting sleeve 4 continuously detects the area in front of it. Under normal conditions, the device remains silent. When a worker, vehicle or other moving object enters its detection range, the infrared sensor 20 immediately sends a trigger signal to the microcontroller 13. After receiving the signal, the microcontroller 13 immediately executes the preset program, driving the audible and visual alarm 16 to emit a loud alarm sound and a high-frequency flashing warning light, so as to actively and strongly remind people approaching to pay attention to safety. This utility model integrates an active reminder mechanism consisting of the infrared sensor 20, the microcontroller 13 and the audible and visual alarm 16, which upgrades the device from a static and passive information display tool to a warning device that can actively remind people who have entered dangerous areas, thereby enhancing the active safety capabilities of the construction site.
[0037] The positioning mechanism can easily fix warning signs 12 of various shapes and sizes. During operation, the warning sign 12 is first placed on the front end of the mounting plate 10. According to the size of the warning sign 12, multiple L-shaped positioning blocks 15 are screwed into the pre-set threaded holes 11 on the mounting plate 10 through the fixing bolts 21 on them to complete the general layout. Then, the clamping bolts 22 on each positioning block are tightened one by one. The ends of the clamping bolts 22 will tightly abut against the edge of the warning sign 12. Through the combined force of three or more points, the warning sign 12 is firmly clamped and fixed on the mounting plate 10. This utility model, through a unique positioning mechanism, uses multiple freely arrangable L-shaped positioning blocks 15 and clamping bolts 22 in combination, breaking through the limitation of traditional clamps that can only fix warning signs of specific shapes. It can stably install warning signs of various shapes and sizes such as round, triangular, and square, realizing multi-purpose use and strong versatility, and bringing great convenience to material management on the construction site.
[0038] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.
[0039] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. A safety warning device for building safety, characterized in that, include: Fixed base (1); The height adjustment mechanism is connected to the fixed seat (1). The height adjustment mechanism includes a limiting sleeve (4), a DC geared motor (5), a lead screw (6), a nut block (7), a connecting block (8), and a mounting plate (10). The lower surface of the fixed seat (1) is fixedly connected to the limiting sleeve (4). The two sides of the limiting sleeve (4) are provided with sliding cavities (9). The upper surface of the fixed seat (1) is equipped with a DC geared motor (5). The output end of the DC geared motor (5) passes through the upper surface of the fixed seat (1) and is fixedly connected to the lead screw (6) through a coupling. The lead screw (6) is rotatably connected to the lower surface of the limiting sleeve (4). The lead screw (6) is threaded with a nut block (7). The two sides of the nut block (7) are fixedly connected with connecting blocks (8). The connecting blocks (8) pass through the adjacent sliding cavities (9) and are fixedly connected to the mounting plate (10). The mounting plate (10) is provided with evenly distributed threaded holes (11). The front end face of the mounting plate (10) is provided with a prompting plate (12). The mounting plate (10) is connected to a plurality of evenly distributed positioning mechanisms. The positioning mechanisms include an L-shaped positioning block (15), a fixing bolt (21), and a clamping bolt (22). The mounting plate (10) is provided with an L-shaped positioning block (15). The L-shaped positioning block (15) is threadedly connected to the fixing bolt (21). The other end of the fixing bolt (21) is threaded into the threaded hole (11). The L-shaped positioning block (15) is threadedly connected to the clamping bolt (22). An active reminder mechanism is connected to the fixed base (1). The active reminder mechanism includes an infrared sensor (20), an audible and visual alarm (16), and a microcontroller (13). An infrared sensor (20) is installed on the front end of the limiting sleeve (4). An audible and visual alarm (16) and a microcontroller (13) are also installed on the front end of the limiting sleeve (4). The infrared sensor (20) and the audible and visual alarm (16) are electrically connected to the microcontroller (13).
2. The safety warning device for building safety according to claim 1, characterized in that, The front end of the fixed base (1) is also equipped with a three-position control switch (14), which is electrically connected to the DC geared motor (5).
3. The safety warning device for building safety according to claim 2, characterized in that, The front end face of the fixed base (1) is fixedly connected to a protective cover (17), and the microcontroller (13) and the three-position control switch (14) are both located inside the protective cover (17).
4. The safety warning device for building safety according to claim 3, characterized in that, The protective cover (17) has an operating port on its front end, and a matching cover door (18) is installed inside the operating port.
5. The safety warning device for building safety according to claim 1, characterized in that, The upper surface of the fixed base (1) is fixedly connected to two symmetrical connecting bases (2), and the connecting bases (2) are provided with connecting holes (3).
6. The safety warning device for building safety according to claim 1, characterized in that, One end of the clamping bolt (22) is fitted with a rubber sleeve (19).
7. The safety warning device for building safety according to claim 3, characterized in that, The protective cover (17) has uniformly distributed heat dissipation fins fixedly connected to both sides.
Citation Information
Patent Citations
Safety prompting device for building safety
CN217157551U