Operation construction anti-invasion device
By designing a built-in alarm system within the construction safety barrier, the problem of easily damaged alarms in existing technologies is solved, and the internal design of an automated alarm system is realized, thereby improving the safety and intrusion prevention capabilities of the construction area.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-04-03
AI Technical Summary
The alarms on existing construction guardrails are easily damaged by physical means, making it impossible to detect intrusions in a timely manner and creating safety hazards.
Design an anti-intrusion device for construction work that includes a guardrail body, post components, and pressure-triggered components. Through a built-in alarm system, the pressure-triggered components automatically detect intrusions and issue alarms, improving response speed and accuracy.
The internal design of the alarm system has been implemented, reducing the risk of physical damage and improving the security and intrusion prevention capabilities of the construction area.
Smart Images

Figure CN224078824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of construction anti-intrusion devices, specifically a construction anti-intrusion device. Background Technology
[0002] Construction site intrusion prevention devices are equipment used to prevent unauthorized personnel or objects from illegally entering the construction area. Among them, guardrails are a common intrusion prevention facility. Although existing construction intrusion prevention guardrails can play a blocking role to a certain extent, they have obvious defects.
[0003] Many guardrails are equipped with alarms to sound an alarm when intrusion is detected. However, these alarms are often exposed on the outside, making them highly susceptible to physical damage during actual use. For example, they can be damaged by malicious impacts or smashing. Once the alarm is damaged, it cannot detect intrusion and sound an alarm in time, thus rendering the entire guardrail ineffective in preventing intrusion and failing to provide reliable security for the construction area, posing a great threat to construction safety.
[0004] In view of this, we propose an anti-intrusion device for construction operations. Utility Model Content
[0005] The purpose of this utility model is to provide an anti-intrusion device for construction operations to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] An anti-intrusion device for construction work includes a guardrail body. Connecting seats are fixedly connected to both sides of the guardrail body. Column assemblies are fixedly connected to the connecting seats via bolts. A pressure triggering component is fixedly connected to the center of the inner side of each column assembly. A connecting screw is threaded to the top of each column assembly, extending into the interior of the column assembly. Each column assembly includes two hollow columns, which are fixed together by bolts. A sound outlet and a movable groove are formed at the top of each hollow column, with the sound outlet located below the movable groove. A sliding sensing block is slidably connected to the inner side of the sliding sensing block. A sliding cavity is formed in the middle of the inner side of the sliding sensing block. A pressure trigger head is fixedly connected to the bottom end of the sliding cavity. A connecting ear plate is fixedly connected to one side of the sliding sensing block. The pressure trigger assembly includes a sensing base. A pressure sensor is fixedly connected to the middle of the top of the sensing base. Auxiliary support columns are fixedly connected to both sides of the top of the sensing base. A spring telescopic rod is fixedly connected to the top of the auxiliary support column. An alarm is fixedly connected inside the sensing base. The top of the spring telescopic rod is in contact with the lower surface of the sliding sensing block.
[0008] As a further improvement to this technical solution, the top of the sensing base is an inclined structure, and connecting holes are provided on both sides of the sensing base. The positions of the connecting holes correspond to the positions of the sound outlet holes. Waterproof sponge layers are fixedly connected to both sides of the inner wall of the sensing base, and the positions of the waterproof sponge layers correspond to the positions of the connecting holes.
[0009] As a further improvement to this technical solution, a PLC controller is fixedly connected to the top of the alarm. The PLC controller is located below the pressure sensor, and the pressure sensor is electrically connected to the alarm through the PLC controller.
[0010] As a further improvement to this technical solution, the inner side of the sliding cavity is slidably engaged with the outer wall of the connecting screw, and the connecting lug is fixedly connected to the connecting seat by bolts.
[0011] As a further improvement to this technical solution, the sliding sensing block and the pressure trigger head are located on the same central axis, the pressure trigger head is located above the pressure sensor, the pressure trigger head and the pressure sensor are located on the same central axis, each sliding sensing block is provided with two connecting ear plates, the connecting ear plates extend to the outside of the movable groove, the two connecting ear plates are parallel to each other, and the connecting seat is located between the two connecting ear plates.
[0012] As a further improvement to this technical solution, a corrugated protective plate is fixedly connected to one side of the bottom end of the sliding sensing block. The two sides of the corrugated protective plate are in contact with the inner wall of the cavity column, and the bottom end of the corrugated protective plate is bonded and fixed to the upper surface of the sensing base.
[0013] As a further improvement to this technical solution, each of the column assemblies has two hollow columns located at the top and bottom respectively. The top of the upper hollow column is fitted with a column cover, and the bottom of the lower hollow column is fixedly connected to a column base by bolts. A rain shield is installed above the sound outlet, and the rear end of the rain shield is fixedly connected to the outer wall of the hollow column.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] In this invention, by setting up a guardrail body, a post assembly, and a pressure triggering assembly, when someone climbs the guardrail, the pressure is transmitted through the connecting seat, causing the sliding sensing block to slide down and squeeze the pressure sensor, triggering the alarm to emit an alarm through the sound outlet, thus achieving automated alarm. It has a fast response speed and high accuracy. Compared with traditional alarms that are exposed and easily damaged, this device integrates the alarm system into the guardrail structure, effectively reducing the risk of physical damage and providing reliable safety protection for the construction area. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the overall rear structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the main structure of the guardrail of this utility model;
[0019] Figure 4 This is a structural schematic diagram of the column assembly of this utility model;
[0020] Figure 5 This is a cross-sectional structural diagram of the column assembly of this utility model;
[0021] Figure 6 This is a schematic diagram of the structure of the sliding sensing block of this utility model;
[0022] Figure 7 This is a cross-sectional structural diagram of the pressure triggering component of this utility model.
[0023] The meanings of the labels in the diagram are as follows: 1. Main body of the guardrail;
[0024] 2. Connecting base;
[0025] 3. Column assembly; 31. Cavity column; 32. Sound outlet; 33. Movable groove; 34. Sliding sensor block; 35. Sliding cavity; 36. Pressure trigger head; 37. Connecting ear plate; 38. Corrugated protective plate;
[0026] 4. Pressure triggering assembly; 41. Sensing base; 42. Pressure sensor; 43. Auxiliary support column; 44. Spring telescopic rod; 45. Alarm; 46. Connection hole; 47. Waterproof sponge layer; 48. PLC controller;
[0027] 5. Connecting screw; 6. Column top cover; 7. Column base; 8. Rain cover. Detailed Implementation
[0028] 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.
[0029] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0030] (This addresses the issue that, in actual use, exposed alarm devices are highly susceptible to physical damage, such as being maliciously struck or smashed. Once the alarm is damaged, it cannot detect intrusion and issue an alarm in a timely manner, rendering the entire guardrail ineffective in preventing intrusion and failing to provide reliable security for the construction area, thus posing a significant safety hazard to construction.)
[0031] like Figures 1-7 As shown, this embodiment provides an anti-intrusion device for construction work, including a guardrail body 1. Connecting seats 2 are fixedly connected to both sides of the guardrail body 1. Column assemblies 3 are fixedly connected to the connecting seats 2 by bolts. A pressure triggering component 4 is fixedly connected to the center of the inner side of the column assembly 3. A connecting screw 5 is threadedly connected to the top of the column assembly 3, extending into the interior of the column assembly 3. Each column assembly 3 includes two hollow columns 31, which are fixed together by bolts. A sound outlet 32 and a movable groove 33 are provided at the top of the hollow column 31. The sound outlet 32 is located below the movable groove 33. A sliding sensing block 34 is slidably connected to the inner side of the hollow column 31. A sliding cavity 35 is provided in the middle of the inner side of the 4. The inner side of the sliding cavity 35 slides in cooperation with the outer wall of the connecting screw 5. A pressure trigger head 36 is fixedly connected to the bottom end of the sliding cavity 35. A connecting ear plate 37 is fixedly connected to one side of the sliding sensing block 34. The connecting ear plate 37 is fixedly connected to the connecting seat 2 by bolts. The pressure trigger assembly 4 includes a sensing base 41. A pressure sensor 42 is fixedly connected to the middle of the top of the sensing base 41. Auxiliary support columns 43 are fixedly connected to both sides of the top of the sensing base 41. A spring telescopic rod 44 is fixedly connected to the top of the auxiliary support column 43. An alarm 45 is fixedly connected inside the sensing base 41. The top of the spring telescopic rod 44 is in contact with the lower surface of the sliding sensing block 34.
[0032] During installation, the main body 1 of the guardrail is fixed to the post assembly 3 via the connecting seat 2 and the connecting ear plate 37. The connecting screw 5 restricts the movement of the sliding sensor block 34. Under normal conditions, the sliding sensor block 34 is stationary, the pressure sensor 42 has no pressure change, and the system is in standby mode. When climbing occurs, the pressure is transmitted to the sliding sensor block 34 through the connecting seat 2, causing it to slide down. The pressure trigger head 36 squeezes the pressure sensor 42, and the signal is transmitted to the PLC controller 48, which controls the alarm 45 to emit an alarm through the sound outlet 32.
[0033] like Figure 4-6 As shown, each column assembly 3 has two hollow columns 31 located at the top and bottom respectively. The top of the upper hollow column 31 is fitted with a column cover 6, and the bottom of the lower hollow column 31 is fixedly connected to a column base 7 by bolts. A rain shield 8 is installed above the sound outlet 32. The rear end of the rain shield 8 is fixedly connected to the outer wall of the hollow column 31, which can prevent rainwater from entering the sound outlet 32, prevent the sound transmission of the alarm 45 from being obstructed, and at the same time reduce the corrosion of the internal electronic components by rainwater, thus extending the service life of the equipment.
[0034] like Figure 7 As shown, the top of the sensing base 41 is an inclined structure. Both sides of the sensing base 41 are provided with connection holes 46, and the position of the connection holes 46 corresponds to the position of the sound outlet 32. Both sides of the inner wall of the sensing base 41 are fixedly connected with waterproof sponge layers 47, and the position of the waterproof sponge layers 47 corresponds to the position of the connection holes 46. The waterproof sponge layers 47 can prevent dust, water vapor and other substances from entering the interior of the sensing base 41, protect the pressure sensor 42, alarm 45 and other precision components, and ensure their stable operation.
[0035] like Figure 7 As shown, a PLC controller 48 is fixedly connected to the top of the alarm 45. The PLC controller 48 is located below the pressure sensor 42. The pressure sensor 42 is electrically connected to the alarm 45 through the PLC controller 48. As the core control unit of the entire alarm system, the PLC controller 48 can quickly and accurately receive and process the electrical signals transmitted from the pressure sensor 42, and control the opening and closing of the alarm 45 according to the preset program. This connection method realizes the automatic alarm function, improves the response speed and accuracy of the guardrail intrusion prevention system, and can issue alarms for intrusion behavior in a timely and effective manner.
[0036] like Figure 4-6 As shown, the sliding sensor block 34 and the pressure trigger head 36 are located on the same central axis. The pressure trigger head 36 is located above the pressure sensor 42. The pressure trigger head 36 and the pressure sensor 42 are located on the same central axis. Each sliding sensor block 34 is provided with two connecting ear plates 37. The connecting ear plates 37 extend to the outside of the movable groove 33. The two connecting ear plates 37 are parallel to each other. The connecting seat 2 is located between the two connecting ear plates 37. This design enhances the connection strength between the connecting seat 2 and the sliding sensor block 34, so that the pressure on the guardrail body 1 can be reliably transmitted to the sliding sensor block 34, ensuring the normal operation of the intrusion detection function.
[0037] like Figure 4-7As shown, a corrugated protective plate 38 is fixedly connected to one side of the bottom end of the sliding sensing block 34. The two sides of the corrugated protective plate 38 are in contact with the inner wall of the cavity column 31, and the bottom end of the corrugated protective plate 38 is bonded and fixed to the upper surface of the sensing base 41. The corrugated protective plate 38 has good extensibility and can effectively block external environmental factors, such as dust, debris, and water vapor, from affecting the pressure sensor 42 and the spring telescopic rod 44. This prevents these components from malfunctioning or degrading due to external interference, provides a good working environment for the pressure sensor 42 and the spring telescopic rod 44, extends their service life, and ensures the long-term stable operation of the guardrail intrusion prevention system.
[0038] In summary, the working principle of this solution is as follows:
[0039] During the initial installation and preparation phase, the connecting seats 2 on both sides of the guardrail body 1 are fixedly connected to the connecting ear plates 37 on the post assembly 3 using bolts, completing the initial installation of the guardrail body 1 and the post assembly 3. The post assembly 3 consists of two hollow posts 31 fixed by bolts. Inside the hollow posts 31, the sliding sensing block 34 can slide inside the hollow posts 31. The sliding cavity 35 in the middle of its inner side is used to slide with the connecting screw 5. The connecting screw 5 restricts the movement range of the sliding sensing block 34, while the detachable connecting screw 5 facilitates the adjustment of the guardrail body. The sliding sensor block 34 is installed or maintained. An external power supply powers the pressure sensor 42, alarm 45, and PLC controller 48 fixed at the top center of the sensing base 41. The PLC controller 48 receives and processes the electrical signals from the pressure sensor 42 and controls the opening and closing of the alarm 45. Since the alarm 45 is located inside the guardrail body 1, when the alarm 45 is activated, the alarm sound is transmitted to the outside of the column assembly 3 through the connecting hole 46 and the sound outlet 32. The waterproof sponge layer 47 prevents external dust from entering the sensing base 4. Inside the guardrail 1, the rain shield 8 protects the area above the sound outlet 32, while the corrugated protective plate 38 blocks external environmental influences on the pressure sensor 42 and the spring telescopic rod 44, ensuring their service life. Under normal operating conditions, without human interference, the guardrail body 1 remains stable. The sliding sensor block 34 remains stationary within the hollow column 31 without additional pressure. The pressure sensor 42 does not detect any abnormal pressure changes, and the alarm 45 will not trigger an alarm signal. The entire intrusion prevention system... When the device is in standby mode, if someone climbs the main body 1 of the guardrail, the pressure on the main body 1 is transmitted to the connecting ear plate 37 of the column assembly 3 through the connecting seat 2, which in turn causes the sliding sensor block 34 to slide downward in the cavity column 31. As the sliding sensor block 34 slides downward, the pressure trigger head 36 at its bottom gradually approaches and squeezes the pressure sensor 42. As the pressure increases, the pressure sensor 42 converts the pressure signal into an electrical signal and transmits it to the PLC controller 48. The PLC controller 48 controls the alarm 45 to activate and issue an alarm, warning of intrusion.
[0040] 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, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A construction site intrusion prevention device, comprising a guardrail body (1), characterized in that: Both sides of the guardrail body (1) are fixedly connected to the connecting seat (2), and the connecting seat (2) is fixedly connected to the column assembly (3) by bolts. The middle of the inner side of the column assembly (3) is fixedly connected to the pressure triggering component (4), and the top of the column assembly (3) is threadedly connected to the connecting screw (5), which extends into the interior of the column assembly (3). Each of the column assemblies (3) includes two hollow columns (31), which are fixed together by bolts. The top of each hollow column (31) is provided with a sound outlet (32) and a movable groove (33). The sound outlet (32) is located below the movable groove (33). A sliding sensor block (34) is slidably connected to the inner side of the hollow column (31). A sliding cavity (35) is provided in the middle of the inner side of the sliding sensor block (34). A pressure trigger head (36) is fixedly connected to the bottom end of the sliding cavity (35). A connecting ear plate (37) is fixedly connected to one side of the sliding sensor block (34). The pressure triggering component (4) includes a sensing base (41), a pressure sensor (42) is fixedly connected to the middle of the top of the sensing base (41), auxiliary support columns (43) are fixedly connected to both sides of the top of the sensing base (41), a spring telescopic rod (44) is fixedly connected to the top of the auxiliary support column (43), and an alarm (45) is fixedly connected inside the sensing base (41). The top end of the spring telescopic rod (44) is in contact with the lower surface of the sliding sensing block (34).
2. The anti-intrusion device for construction work according to claim 1, characterized in that: The top of the sensing base (41) is inclined. Both sides of the sensing base (41) are provided with connecting holes (46). The position of the connecting holes (46) corresponds to the position of the sound outlet (32). Both sides of the inner wall of the sensing base (41) are fixedly connected with waterproof sponge layers (47). The position of the waterproof sponge layers (47) corresponds to the position of the connecting holes (46).
3. The anti-intrusion device for construction work according to claim 1, characterized in that: A PLC controller (48) is fixedly connected to the top of the alarm (45). The PLC controller (48) is located below the pressure sensor (42). The pressure sensor (42) is electrically connected to the alarm (45) through the PLC controller (48).
4. The anti-intrusion device for construction work according to claim 1, characterized in that: The inner side of the sliding cavity (35) is slidably engaged with the outer wall of the connecting screw (5), and the connecting ear plate (37) is fixedly connected to the connecting seat (2) by bolts.
5. The anti-intrusion device for construction work according to claim 1, characterized in that: The sliding sensing block (34) and the pressure trigger head (36) are located on the same central axis. The pressure trigger head (36) is located above the pressure sensor (42). The pressure trigger head (36) and the pressure sensor (42) are located on the same central axis. Each sliding sensing block (34) is provided with two connecting ear plates (37). The connecting ear plates (37) extend to the outside of the movable groove (33). The two connecting ear plates (37) are parallel to each other. The connecting seat (2) is located between the two connecting ear plates (37).
6. The anti-intrusion device for construction work according to claim 1, characterized in that: A corrugated protective plate (38) is fixedly connected to one side of the bottom end of the sliding sensing block (34). The two sides of the corrugated protective plate (38) are in contact with the inner wall of the cavity column (31). The bottom end of the corrugated protective plate (38) is bonded and fixed to the upper surface of the sensing base (41).
7. The anti-intrusion device for construction work according to claim 1, characterized in that: Each column assembly (3) has two hollow columns (31) located at the top and bottom respectively. The top of the upper hollow column (31) is fitted with a column cover (6), and the bottom of the lower hollow column (31) is fixedly connected to a column base (7) by bolts. A rain shield (8) is installed above the sound outlet (32), and the rear end of the rain shield (8) is fixedly connected to the outer wall of the hollow column (31).