Intelligent construction site building alarm device
By adopting a detachable plug and slot structure in the alarm equipment at the construction site, the problem of inconvenient transportation of existing equipment is solved, and the equipment can be easily disassembled and carried, making it suitable for intelligent construction alarm equipment at construction sites.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TAIZHOU WANNIAN CONSTR ENG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-07-07
AI Technical Summary
The existing sound and light alarms around the foundation pit are fixedly connected to the ground poles, which makes transportation and carrying inconvenient and takes up a lot of space.
A smart construction alarm device for construction sites was designed, which adopts a detachable plug and slot structure. The plug is inserted into the slot by spring control, which realizes convenient disassembly of the monitoring box and the plug, and reduces the space occupied.
It enables easy disassembly and carrying of alarm devices, reduces space occupation during transportation, and facilitates use on construction sites.
Smart Images

Figure CN224472066U_ABST
Abstract
Description
Technical Field
[0001] This patent relates to the field of intelligent construction technology, specifically to an intelligent construction alarm device for construction sites. Background Technology
[0002] my country is in a critical period of rapid development. In order to make people's travel and life more convenient and efficient, many cities are building roads and bridges. In the process of building bridge piers, it is often necessary to dig foundation pits in the ground. Moreover, these foundation pits are generally quite deep and have great dangers. In order to prevent pedestrians from accidentally falling into the foundation pits, we often place alarm devices around the foundation pits. When a passerby approaches the dangerous area, the alarm device will automatically sound an alarm to remind the passerby to leave as soon as possible to prevent accidents.
[0003] The existing method for protecting foundation pits is to install audible and visual alarms around the pit for warning purposes. The audible and visual alarms can simultaneously activate sound and flashing light for intelligent alarm. The bottom of the alarm is equipped with a ground-mounted rod to fix the whole unit to the soil. However, since the alarm and the ground-mounted rod are fixedly connected, the whole unit occupies a lot of space during transportation and is not easy to disassemble. Therefore, we propose an intelligent construction alarm device for construction sites. Utility Model Content
[0004] The purpose of this patent is to provide an intelligent construction alarm device for construction sites to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this patent provides the following technical solution: an intelligent construction alarm device for construction sites, comprising a monitoring box and a grounding rod. The monitoring box contains a controller. A loudspeaker, an infrared rangefinder, and an LED alarm light are fixedly installed on the top of the monitoring box. Slots are provided on both the left and right sides of the side wall of the grounding rod. Fixing plates are fixedly installed on both the left and right sides of the bottom of the monitoring box. Sliding holes are provided on the fixing plates. A rod is slidably installed on the inner side wall of the sliding holes. A ring is integrally formed on the side wall of the rod. A spring is sleeved on the side wall of the rod. The two ends of the spring are respectively fixedly installed on the fixing plate and the ring. The inner end of the rod is inserted into the slot.
[0006] The monitoring box has a square hole in the lower center of the front side. A square rod is slidably installed in the square hole. Inclined grooves are provided on both the left and right sides of the side wall of the square rod. Through holes are provided at both ends of the square hole. A crossbar is slidably installed in the through holes. The inner end of the crossbar is attached to the inclined groove. A vertical rod is fixedly installed on the outer end of the crossbar. The bottom end of the vertical rod is fixedly installed on the outer end of the insertion rod.
[0007] Preferably, baffles are fixedly installed at both the front and rear ends of the square rod.
[0008] Preferably, the inner end of the crossbar is provided with a spherical surface, which fits onto the inclined groove.
[0009] Preferably, the top of the grounding rod has a positioning groove, which is square in shape, and a positioning post is fixedly installed in the middle of the bottom of the monitoring box. The positioning post is square in shape, and its size matches the internal size of the positioning groove. The positioning post is inserted into the positioning groove.
[0010] Preferably, the bottom end of the positioning post is provided with a tapered surface.
[0011] Preferably, the bottom end of the grounding rod is conical, and the bottom end of the side wall of the grounding rod is integrally formed with a ground-fitting ring.
[0012] Compared with the prior art, the beneficial effects of this patent are as follows: This patent has fixed plates installed on both the left and right sides of the bottom of the monitoring box. The fixed plates are equipped with spring-controlled plug rods. The left and right sides of the plug rods are equipped with slots. The elasticity of the springs allows the plug rods to be inserted into the slots, thereby completing the connection between the monitoring box and the plug rods. When transporting the whole thing, you only need to disengage the plug rods from the slots to complete the disassembly of the monitoring box and the plug rods. This makes it easy to disassemble the whole thing, reduces the space occupied by the whole thing, and makes it easier to carry the whole thing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall patent.
[0014] Figure 2 This is a partial structural diagram of this patent.
[0015] Figure 3 This is a three-dimensional view of the square rod in this patent.
[0016] In the diagram: 1. Monitoring box, 2. Controller, 3. Loudspeaker, 4. Infrared rangefinder, 5. LED alarm light, 6. Grounding rod, 7. Slot, 8. Fixing plate, 9. Insert rod, 10. Ring, 11. Spring, 12. Square hole, 13. Square rod, 14. Inclined groove, 15. Through hole, 16. Horizontal bar, 17. Vertical pole, 18. Baffle, 19. Spherical surface, 20. Positioning groove, 21. Positioning column, 22. Conical surface, 23. Grounding ring. Detailed Implementation
[0017] The technical solutions of this patent embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this patent, and not all of them. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.
[0018] Please see Figure 1, Figure 2 and Figure 3 This patent provides a technical solution: an intelligent construction alarm device for construction sites, including a monitoring box 1 and a grounding rod 6. The monitoring box 1 is equipped with a controller 2. A loudspeaker 3, an infrared rangefinder 4, and an LED alarm light 5 are fixedly installed on the top of the monitoring box 1. The left and right sides of the side wall of the grounding rod 6 are provided with slots 7. The left and right sides of the bottom of the monitoring box 1 are fixedly installed with fixing plates 8. The fixing plates 8 are provided with sliding holes. A rod 9 is slidably installed on the inner side wall of the sliding holes. A ring 10 is integrally formed on the side wall of the rod 9. A spring 11 is sleeved on the side wall of the rod 9. The two ends of the spring 11 are respectively fixedly installed on the fixing plate 8 and the ring 10. The inner end of the rod 9 is inserted into the slot 7.
[0019] Figure 1 , 2 The spring 11 shown is in a compressed state, and the compression effect allows the insert rod 9 to be inserted into the slot 7.
[0020] A square hole 12 is provided in the lower center of the front side of the monitoring box 1. A square rod 13 is slidably installed in the square hole 12. Inclined grooves 14 are provided on both the left and right sides of the side wall of the square rod 13. Through holes 15 are provided at both the left and right ends of the square hole 12. A crossbar 16 is slidably installed in the through hole 15. The inner end of the crossbar 16 is attached to the inclined groove 14. A vertical rod 17 is fixedly installed on the outer end of the crossbar 16. The bottom end of the vertical rod 17 is fixedly installed on the outer end of the plug rod 9.
[0021] like Figure 3 The diagram shows the shapes of the square rod 13 and the inclined groove 14. Figure 2 In the middle, the inner end of the crossbar 16 is attached to the last side of the inclined groove 14.
[0022] Specifically, baffles 18 are fixedly installed at both the front and rear ends of the square rod 13.
[0023] The baffle 18 is designed to prevent the square rod 13 from dislodging from the square hole 12.
[0024] Specifically, the inner end of the crossbar 16 is provided with a spherical surface 19, which fits into the inclined groove 14.
[0025] The spherical surface 19 can enhance the sliding effect between the inner end of the crossbar 16 and the inclined groove 14.
[0026] Specifically, the top of the grounding pole 6 has a positioning groove 20, which is square in shape. The bottom center of the monitoring box 1 has a positioning post 21, which is square in shape. The size of the positioning post 21 matches the internal size of the positioning groove 20, and the positioning post 21 is inserted into the positioning groove 20.
[0027] By setting the positioning post 21 to be inserted into the positioning groove 20, the installation positions of the monitoring box 1 and the grounding pole 6 are defined, thereby defining the positions of the slot 7 and the pole 9.
[0028] Specifically, the bottom end of the positioning post 21 is provided with a tapered surface 22.
[0029] By setting the tapered surface 22, the size of the bottom end of the positioning post 21 can be reduced, making it easier for the positioning post 21 to be inserted into the positioning groove 20.
[0030] Specifically, the bottom end of the grounding rod 6 is conical, and the bottom end of the side wall of the grounding rod 6 is integrally formed with a ground-attaching ring 23.
[0031] The ground-mounted ring 23 allows its bottom to adhere to the ground, increasing the stability of the ground-mounted rod 6.
[0032] Working principle: When it is necessary to disassemble the monitoring box 1 and the grounding pole 6, the square pole 13 can be moved to the rear side, and at the same time the inclined groove 14 moves to the rear side. The inclined groove 14 drives the two horizontal bars 16 to move away from each other, and then drives the two plugs 9 to move away from each other, so that the two plugs 9 disengage from the two slots 7 at the same time. The monitoring box 1 can be moved upward to complete the disassembly of the monitoring box 1 and the grounding pole 6.
[0033] LED alarm light 5 is a three-color light (red, yellow, and green) to facilitate displaying different colors according to different warning levels;
[0034] The infrared rangefinder 4 measures the distance to objects, including people and construction machinery, at set intervals. Simultaneously, it sends the measured distance to the controller 2. The controller 2 sets the measured distance as the travel distance and marks the travel distance as JLi, i = 1, 2, 3...n.
[0035] The travel value XJZ of personnel and engineering equipment is obtained using the formula XJZ = A * (JLO - JLi) / t, where A is a preset proportional coefficient; JLi is the current travel distance; JL0 is the previous travel distance in the measurement interval; and t is the measurement interval of the infrared rangefinder 4. The warning level is obtained by comparing the travel value with the preset alarm value and the current travel distance with the travel distance threshold. The warning levels include Level 1 alarm signal, Level 2 alarm signal, Level 3 alarm signal, and Level 4 alarm signal.
[0036] When the travel value is greater than or equal to the alarm value and the current travel distance is less than or equal to the travel distance threshold, it is determined that personnel and engineering equipment have exceeded the safe distance and there is a risk of falling into the pit. A level one alarm signal is generated. The level one alarm signal includes a flashing signal and a horn warning signal. The flashing signal is sent to the LED alarm light 5, and the red, yellow and green lights in the LED alarm light 5 flash synchronously. The horn warning signal is sent to the loudspeaker 3, and the loudspeaker 3 emits a warning sound to remind personnel and engineering equipment to stop moving in that direction.
[0037] When the travel value is greater than or equal to the alarm value and the current travel distance is greater than the travel distance threshold, it is determined that personnel and engineering equipment have not exceeded the safe distance but continue to walk towards the pit and there is a risk of falling. A level two alarm signal is generated. The level two alarm signal includes a flashing signal. The flashing signal is sent to LED alarm light 5. The red, yellow and green lights in LED alarm light 5 flash synchronously to remind personnel and engineering equipment to stop moving in that direction.
[0038] When the travel value is less than the alarm value and the current travel distance is less than or equal to the travel distance threshold, it is determined that the personnel and engineering equipment have exceeded the safe distance but the movement range of the personnel and engineering equipment is small, and a level three alarm signal is generated. The level three alarm signal includes a standby signal and a horn reminder signal. The standby signal is sent to the LED alarm light 5, and the LED alarm light 5 remains in a red light state. The horn reminder signal is sent to the loudspeaker 3, and the loudspeaker 3 emits a reminder sound to remind personnel to pay attention to safety when moving near the foundation pit.
[0039] When the travel value is less than the alarm value and the current travel distance is greater than the travel distance threshold, it is determined that the personnel and engineering equipment are far from the foundation pit, and a level four alarm signal is generated. The level four alarm signal includes a standby signal and sends the standby signal to LED alarm light 5, which keeps the red light on.
[0040] It should be noted that the device structure and accompanying drawings of this patent mainly describe the principle of this patent. In terms of the technical aspects of this design principle, the setting of the device's power mechanism, power supply system and control system is not fully described. However, those skilled in the art who understand the principle of the above patent can clearly understand the specifics of its power mechanism, power supply system and control system.
[0041] In the description of this patent, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," and "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. At the same time, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fixed installation," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction relationship between two elements. Unless otherwise expressly limited, those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.
[0042] Although embodiments of this patent 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 this patent, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A smart construction alarm device for construction sites, characterized in that: The system includes a monitoring box (1) and a grounding rod (6). The monitoring box (1) is equipped with a controller (2). The top of the monitoring box (1) is fixedly equipped with a loudspeaker (3), an infrared rangefinder (4), and an LED alarm light (5). The grounding rod (6) has slots (7) on both the left and right sides of its sidewall. The bottom of the monitoring box (1) has fixed plates (8) on both the left and right sides of its bottomwall. The fixed plates (8) have sliding holes. A rod (9) is slidably installed on the inner sidewall of the sliding holes. A ring (10) is integrally formed on the sidewall of the rod (9). A spring (11) is sleeved on the sidewall of the rod (9). The two ends of the spring (11) are fixedly installed on the fixed plate (8) and the ring (10) respectively. The inner end of the rod (9) is inserted into the slot (7). The monitoring box (1) has a square hole (12) in the middle of the lower front side. A square rod (13) is slidably installed in the square hole (12). Inclined grooves (14) are provided on both the left and right sides of the side wall of the square rod (13). Through holes (15) are provided at both the left and right ends of the square hole (12). A crossbar (16) is slidably installed in the through hole (15). The inner end of the crossbar (16) is attached to the inclined groove (14). A vertical rod (17) is fixedly installed on the outer end of the crossbar (16). The bottom end of the vertical rod (17) is fixedly installed on the outer end of the plug rod (9).
2. The intelligent construction alarm device for construction sites according to claim 1, characterized in that: Both ends of the square rod (13) are fixedly equipped with baffles (18).
3. The intelligent construction alarm device for construction sites according to claim 1, characterized in that: The inner end of the crossbar (16) is provided with a spherical surface (19), which is attached to the inclined groove (14).
4. The intelligent construction alarm device for construction sites according to claim 1, characterized in that: The top positioning groove (20) of the grounding rod (6) is square. A positioning column (21) is fixedly installed in the middle of the bottom of the monitoring box (1). The positioning column (21) is square. The size of the positioning column (21) matches the internal size of the positioning groove (20). The positioning column (21) is inserted into the positioning groove (20).
5. The intelligent construction alarm device for construction sites according to claim 4, characterized in that: The bottom end of the positioning post (21) is provided with a tapered surface (22).
6. The intelligent construction alarm device for construction sites according to claim 1, characterized in that: The bottom end of the ground-inserting rod (6) is conical, and the bottom end of the side wall of the ground-inserting rod (6) is integrally formed with a ground-attaching ring (23).