Road construction early warning device

Abstract

This utility model belongs to the field of road construction technology, and particularly relates to a road construction early warning device, including a base. A warning flag is vertically mounted on the top of the base, and warning slogans are set on both the front and back sides of the warning flag to remind people of the risk of collapse of construction facilities in strong winds. An unfolding mechanism is set at one end of the upper surface of the base. The warning flag with warning slogans vertically mounted on the top of the base can intuitively remind on-site personnel of the risk of collapse of construction facilities in strong winds. The unfolding mechanism and the retracting mechanism are respectively configured at both ends of the upper surface of the base, forming a complete functional closed loop of "automatic response and reset": when strong winds arrive, the unfolding mechanism drives the warning flag to unfold automatically with the help of a built-in power component to ensure that the warning signal is presented in a timely manner; after the strong winds pass, the retracting mechanism is activated to automatically retract and reset the warning flag, so as to prevent the warning flag from being damaged or ineffective due to external environmental factors in non-warning states.

Description

Technical Field

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

[0002] In the field of road construction, construction safety early warning is a crucial link in ensuring the safety of on-site personnel, preventing damage to construction facilities, and avoiding disruption of surrounding traffic. Among these risks, the risk of construction facility collapse caused by strong winds is one of the core hidden dangers in on-site safety management. In road construction scenarios, facilities such as tower cranes, scaffolding, temporary barriers, and material storage racks generally have large windward areas and limited temporary fixation strength. Once they encounter winds of level 5 or above, they are highly susceptible to tilting, collapse, or even falling. This can not only damage construction equipment but also pose a direct threat to the personal safety of on-site workers. Furthermore, it can lead to traffic disruptions on the construction section and cause secondary traffic accidents.

[0003] The inventors discovered that at least the following problems remain unresolved in existing technologies: First, traditional early warning methods rely on manual monitoring and operation. Most construction projects still rely on on-site safety officers manually observing weather changes, measuring wind speed with handheld anemometers, or depending on macro-weather forecasts from meteorological departments to assess the risk of strong winds. Traditional warning devices (such as manually inserted warning flags and temporarily hung warning signs) require manual deployment, and often the strong winds have already arrived on site before the operation is completed, rendering the warnings meaningless. After the strong winds subside, these warning devices also need to be manually dismantled, increasing labor costs.

[0004] Secondly, some early warning devices using electronic sensing technology have poor adaptability and high maintenance costs, making them difficult to match the complex environment of road construction. Road construction areas generally have problems such as high dust concentration, frequent vibration, and strong electromagnetic interference from large machinery. Electronic sensors are easily blocked by dust, damaged by vibration, or affected by electromagnetic interference, resulting in data acquisition distortion and a high rate of false alarms and missed alarms.

[0005] Third, existing warning devices lack a closed-loop function of "automatic response and automatic reset," making them prone to failure in non-warning states. Whether manually operated warning flags or some electric warning devices, they cannot automatically retract and reset after a strong wind warning ends. Warning flags exposed to the construction environment for extended periods not only fade due to sun and rain, but also suffer from fabric aging and damage, affecting the visual warning effect during subsequent warnings.

[0006] Therefore, we propose a road construction early warning device that can solve the above problems. Utility Model Content

[0007] The purpose of this invention is to address the aforementioned technical problems by providing a road construction early warning device that requires no complex electronic components, can adapt to harsh construction environments, and can automatically warn of strong wind risks and automatically reset the device.

[0008] In view of this, the present invention provides a road construction early warning device, including a base, a warning flag is vertically arranged above the base, and warning slogans are arranged on the front and back sides of the warning flag to remind people of the risk of construction facilities collapsing in strong winds. One end of the upper surface of the base is provided with an unfolding mechanism for automatically unfolding the warning flag in strong winds. The other end of the upper surface of the base is provided with a storage mechanism for automatically rolling up the warning flag after strong winds. The unfolding mechanism is equipped with a power unit to provide power for the unfolding of the warning flag.

[0009] Furthermore, the unfolding mechanism includes two sets of steel wire ropes for pulling the warning flag unfold, a drum for winding the steel wire ropes, and a wind collector for driving the drum to rotate. The upper surface of the base is vertically rotatably connected to a drive rod via a bearing. The drive rod vertically passes through the middle of the two sets of drums and is fixedly connected to the drums. The two sets of steel wire ropes are respectively wound around the outside of the two sets of drums. A fixing rod is vertically fixedly installed at one end of the warning flag. The free ends of the two sets of steel wire ropes are respectively fixedly connected to the upper and lower ends of the fixing rod.

[0010] Furthermore, the power assembly includes a wind collector shroud for providing power, and four sets of connecting rods are equidistantly mounted on the top end of the drive rod, with the wind collector shroud symmetrically mounted on the end of the connecting rods away from the drive rod.

[0011] Furthermore, the storage mechanism includes a reel for rewinding the warning flag and a spring for driving the reel to reverse. A column is vertically fixed to the upper surface of the base away from the drive rod. A storage groove is vertically formed on the side of the column near the drive rod. The reel is rotatably connected to the inner walls of the top and bottom of the storage groove via bearings.

[0012] Furthermore, the end of the warning flag furthest from the fixed rod is fixedly connected to the outside of the roll rod, and the size of the warning flag matches that of the storage slot.

[0013] Furthermore, a connecting groove is provided on the bottom side of the storage slot, the bottom end of the winding rod is placed inside the connecting groove, and the inward end of the spring is fixedly connected to the outer side of the bottom end of the winding rod, while the outward end of the spring is fixedly connected to the inner wall of the connecting groove.

[0014] Furthermore, ventilation holes are provided on the outer side of the warning flag, and the ventilation holes are equidistantly distributed on the outer side of the warning flag.

[0015] Furthermore, fixing plates are symmetrically installed on both sides of the base, and fixing holes are provided through the upper surface of the fixing plates.

[0016] The beneficial effects of this utility model are: 1. A warning flag with a warning slogan is vertically mounted above the base, providing a direct reminder to on-site personnel of the risk of collapse of construction facilities during strong winds. The upper surface of the base is equipped with an unfolding mechanism and a retracting mechanism at both ends, forming a complete functional closed loop of "automatic response and reset": when strong winds arrive, the unfolding mechanism uses an internal power component to automatically unfold the warning flag, ensuring timely presentation of the warning signal; after the strong winds subside, the retracting mechanism activates, automatically retracting and resetting the warning flag, preventing damage or failure due to external environmental factors in non-warning situations. This design achieves early warning through fluid dynamics and mechanical linkage, eliminating the need for complex signal processing from fiber optic sensors, and is adaptable to extreme environments. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional view of the present invention; Figure 3 This is a schematic diagram of the unfolded warning flag of this utility model; The markings in the diagram are as follows: 1. Base; 11. Warning flag; 12. Warning sign; 13. Drive rod; 14. Connecting rod; 15. Air collector cover; 16. Drum; 17. Steel wire rope; 18. Fixing rod; 2. Column; 21. Storage slot; 22. Drum rod; 23. Connecting slot; 24. Spring; 25. Fixing plate; 26. Fixing hole; 27. Ventilation hole. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Reference Figures 1 to 3 A road construction early warning device includes a base 1, on which a warning flag 11 is vertically mounted. Warning signs 12 are mounted on the front and back sides of the warning flag 11 to warn of the risk of construction facilities collapsing in strong winds. An unfolding mechanism is provided at one end of the upper surface of the base 1 to automatically unfold the warning flag 11 in strong winds. A retracting mechanism is provided at the other end of the upper surface of the base 1 to automatically retract the warning flag 11 after the strong winds have passed. The unfolding mechanism contains a power component to provide power for unfolding the warning flag 11.

[0020] This road construction early warning device uses a base 1 as its basic support structure. A warning flag 11 with warning signs 12 on both the front and back sides is vertically installed above the base 1. These warning signs 12 visually alert on-site personnel to the risk of collapse of construction facilities during strong winds. An unfolding mechanism and a retracting mechanism are respectively configured at both ends of the upper surface of the base 1, forming a complete functional closed loop of "automatic response and reset": When strong winds arrive, the unfolding mechanism uses a built-in power component to automatically unfold the warning flag 11, ensuring timely presentation of the warning signal; after the strong winds subside, the retracting mechanism activates, automatically retracting and resetting the warning flag 11, preventing damage or failure of the warning flag 11 due to external environmental factors (such as dust, rain, and weak winds) during non-warning periods.

[0021] Furthermore, the unfolding mechanism includes two sets of steel wire ropes 17 for pulling the warning flag 11 unfold, a drum 16 for winding the steel wire ropes 17, and a wind collector 15 for driving the drum 16 to rotate. The upper surface of the base 1 is vertically rotatably connected to a drive rod 13 via a bearing. The drive rod 13 vertically passes through the middle of the two sets of drums 16 and is fixedly connected to the drums 16. The two sets of steel wire ropes 17 are respectively wound around the outside of the two sets of drums 16. A fixing rod 18 is vertically fixedly installed at one end of the warning flag 11. The free ends of the two sets of steel wire ropes 17 are respectively fixedly connected to the upper and lower ends of the fixing rod 18.

[0022] When the power unit drives the drive rod 13 to rotate, the drum 16 rotates synchronously with the drive rod 13. This generates traction through the winding wire rope 17, pulling the fixed rod 18 and causing the warning flag 11 to move away from the storage mechanism, ultimately achieving a smooth and rapid unfolding of the warning flag 11. The symmetrical arrangement of the two sets of wire ropes 17 ensures balanced force on the warning flag 11 during unfolding, preventing it from shifting or wrinkling due to unilateral force, and ensuring that the warning sign 12 remains clearly visible at all times.

[0023] Furthermore, the power assembly includes a wind collector shroud 15 for providing power, and four sets of connecting rods 14 are equidistantly mounted on the top end of the drive rod 13. The wind collector shroud 15 is symmetrically mounted on the end of the connecting rods 14 away from the drive rod 13.

[0024] In strong winds, the airflow acts on the wind collector 15, using fluid dynamics principles to drive the wind collector 15 to rotate around the axis of the drive rod 13, which in turn drives the connecting rod 14 to rotate synchronously with the drive rod 13. The design of four sets of connecting rods 14 and symmetrical wind collector 15 can maximize the capture of wind force from different directions, improve the adaptability of the power components to changes in wind direction, and ensure stable output of driving force in strong wind environments with different wind directions, providing continuous and reliable power support for the rotation of the drum 16 and the traction of the wire rope 17.

[0025] Furthermore, the storage mechanism includes a winding rod 22 for winding up the warning flag 11 and a spring 24 for driving the winding rod 22 to reverse. A column 2 is vertically fixedly installed on the upper surface of the base 1 at the end away from the drive rod 13. A storage groove 21 is vertically opened on the side of the column 2 near the drive rod 13. The winding rod 22 is rotatably connected to the inner wall of the top and bottom of the storage groove 21 through bearings.

[0026] After strong winds subside and the driving force of the unfolding mechanism disappears, the elastic component (spring 24) in the storage mechanism releases its elastic potential energy, driving the winding rod 22 to rotate in the opposite direction. During rotation, the winding rod 22 gradually wraps the warning flag 11 around its outer side, guiding it into the storage slot 21, thus completing the automatic storage. This structure prevents the warning flag 11 from being exposed when not in use, reducing environmental damage and extending the device's lifespan.

[0027] Furthermore, the end of the warning flag 11 away from the fixing rod 18 is fixedly connected to the outside of the rolling rod 22, and the size of the warning flag 11 matches that of the storage slot 21.

[0028] When the winding rod 22 rotates in the opposite direction under the drive of the elastic component, it can directly drive the warning flag 11 to wind and roll up synchronously. At the same time, the size of the warning flag 11 matches the size of the storage slot 21, so that the warning flag 11 can be accurately embedded in the storage slot 21 when stored. This avoids the warning flag 11 being squeezed and wrinkled in the storage slot 21 due to being too large, and also prevents the warning flag 11 from shaking and shifting in the storage slot 21 due to being too small. This ensures the regularity of the overall structure of the device after storage and does not affect the normal start-up of the subsequent unfolding function.

[0029] Furthermore, the bottom side of the storage slot 21 is provided with a connecting slot 23, the bottom end of the winding rod 22 is placed inside the connecting slot 23, and the inward end of the spring 24 is fixedly connected to the outer side of the bottom end of the winding rod 22, while the outward end of the spring 24 is fixedly connected to the inner wall of the connecting slot 23.

[0030] The spring 24 can be concealed within the connecting groove 23, preventing it from being exposed to dust and rainwater and thus failing. The inward-facing end of the spring 24 is fixedly connected to the outer bottom of the winding rod 22, while the outward-facing end is fixedly connected to the inner wall of the connecting groove 23, forming a "fixed and rotating energy storage" structure. In strong winds, when the unfolding mechanism pulls the warning flag 11 to unfold, the flag 11 drives the winding rod 22 to rotate forward. During this rotation, the winding rod 22 generates a torsional force on the spring 24, causing it to elastically deform and store elastic potential energy. After the strong winds subside, the driving force of the unfolding mechanism disappears, and the spring 24 releases its stored elastic potential energy, generating a reverse torsional force that acts on the winding rod 22, driving it to rotate in the opposite direction. This, in turn, causes the warning flag 11 to rewind, achieving automatic triggering and stable operation of the retraction function.

[0031] Furthermore, the warning flag 11 has ventilation holes 27 on its outer side, and the ventilation holes 27 are equidistantly distributed on the outer side of the warning flag 11.

[0032] In strong winds, when airflow acts on the surface of the warning flag 11, some airflow can pass through the ventilation holes 27, effectively reducing the lateral thrust of the strong wind on the warning flag 11. This prevents the flag from being torn due to excessive wind force, or from shifting or even tipping over due to excessive force pulling the unfolding mechanism or base 1. Simultaneously, the equidistant distribution of the ventilation holes 27 ensures uniform force distribution across all areas of the warning flag 11, preventing deformation due to concentrated local force. This ensures that the warning flag 11 remains flat after unfolding, making the warning slogan 12 clearly visible and not affecting the warning effect.

[0033] Furthermore, fixing plates 25 are symmetrically installed on both sides of the base 1, and fixing holes 26 are provided through the upper surface of the fixing plates 25.

[0034] When installing the device at the road construction site, workers can use the fixing holes 26 to bolt or nail the fixing plate 25 to the ground (or a pre-set fixing base in the construction area), thus ensuring a firm connection between the base 1 and the ground. The symmetrically arranged fixing plates 25 ensure balanced force distribution on the device, preventing tilting or tipping in strong winds due to unilateral fixing. This ensures the deployment mechanism, storage mechanism, and warning flag 11 remain in a stable working position during strong wind warnings, preventing device displacement from affecting the normal operation of the warning function and providing fundamental support for the reliable operation of the entire warning device.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A road construction warning device, characterized by: Includes a base (1), a warning flag (11) is vertically installed above the base (1), and warning signs (12) are installed on the front and back sides of the warning flag (11) to remind people of the risk of construction facilities collapsing in strong winds; An unfolding mechanism is provided at one end of the upper surface of the base (1) for automatically unfolding the warning flag (11) in strong wind weather. The other end of the upper surface of the base (1) is provided with a storage mechanism for automatically rolling up the warning flag (11) after strong winds. The unfolding mechanism is equipped with a power component to provide power for the unfolding of the warning flag (11).

2. The road construction early warning device according to claim 1, characterized in that: The unfolding mechanism includes two sets of steel wire ropes (17) for pulling the warning flag (11) unfold, a drum (16) for winding the steel wire ropes (17), and a wind collector (15) for driving the drum (16) to rotate. The upper surface of the base (1) is vertically rotatably connected to a drive rod (13) via a bearing. The drive rod (13) vertically passes through the middle of the two sets of drums (16) and is fixedly connected to the drums (16). The two sets of steel wire ropes (17) are respectively wound around the outside of the two sets of drums (16). A fixing rod (18) is vertically fixedly installed at one end of the warning flag (11). The free ends of the two sets of steel wire ropes (17) are respectively fixedly connected to the upper and lower ends of the fixing rod (18).

3. The road construction early warning device according to claim 2, characterized in that: The power assembly includes a wind collector shroud (15) for providing power, and four sets of connecting rods (14) are equidistantly mounted on the top of the drive rod (13). The wind collector shroud (15) is symmetrically mounted on the end of the connecting rods (14) away from the drive rod (13).

4. The road construction early warning device according to claim 3, characterized in that: The storage mechanism includes a reel (22) for reeling in the warning flag (11) and a spring (24) for driving the reel (22) to reverse. A column (2) is vertically fixed on the upper surface of the base (1) away from the drive rod (13). A storage groove (21) is vertically opened on the side of the column (2) near the drive rod (13). The reel (22) is rotatably connected to the inner wall of the top and bottom of the storage groove (21) through bearings.

5. The road construction early warning device according to claim 4, characterized in that: The warning flag (11) is fixedly connected to the outside of the roll rod (22) at the end away from the fixed rod (18), and the size of the warning flag (11) matches that of the storage slot (21).

6. The road construction early warning device according to claim 5, characterized in that: The storage slot (21) has a connecting slot (23) on its bottom side. The bottom end of the winding rod (22) is placed inside the connecting slot (23), and the inner end of the spring (24) is fixedly connected to the outer side of the bottom end of the winding rod (22), while the outer end of the spring (24) is fixedly connected to the inner wall of the connecting slot (23).

7. The road construction early warning device according to claim 6, characterized in that: The warning flag (11) has ventilation holes (27) on its outer side, and the ventilation holes (27) are equidistantly distributed on the outer side of the warning flag (11).

8. The road construction early warning device according to claim 7, characterized in that: Fixing plates (25) are symmetrically installed on both sides of the base (1), and fixing holes (26) are provided through the upper surface of the fixing plates (25).

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