A blasting safety protection cordon

By employing a tripod support structure, a three-stage telescopic main column, and a three-layer composite warning belt in the blasting warning line, combined with pressure sensing lines and early warning modules, the problems of instability, poor impact resistance, and insufficient warning of traditional warning line structures have been solved, achieving the effects of stable support, effective warning, and real-time safety monitoring.

CN224395458UActive Publication Date: 2026-06-23CHINA CONSTR SECOND ENG BUREAU LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SECOND ENG BUREAU LTD
Filing Date
2025-07-28
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Traditional blasting warning lines are structurally unstable, have poor impact resistance, lack effective warning functions, and are difficult for personnel to identify at night or in low visibility conditions, increasing safety risks.

Method used

The support unit adopts a tripod support structure and a counterweight base. The main column has a three-stage telescopic structure, and the warning tape has a three-layer composite structure, with an inner Kevlar woven mesh, a middle polyurethane foam layer, and an outer PVC reflective film. The surface is equipped with pressure sensing lines and a warning module, including a vibration sensor, an audible and visual alarm, a wireless transmission unit, and an ARM processor.

Benefits of technology

It achieves stable support under various terrain conditions, can withstand blasting impacts, provides clear warnings, monitors in real time and issues alarms, and improves the safety of blasting sites.

✦ Generated by Eureka AI based on patent content.

Smart Images

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    Figure CN224395458U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of blasting safety protection cordon, including at least support unit, impact-resistant warning tape is arranged between support unit. Support unit includes tripod support structure, counterweight base, main column and warning tape fixing mechanism. Main column is three-stage telescopic structure, is equipped with rotary joint. Impact-resistant warning tape surface composite reflective film layer and pressure sensing line, and for three-layer composite structure. Pressure sensing line is connected with early warning module, and alarm triggering and state information transmission can be realized. Counterweight base includes sandbag storehouse and magnetic attraction positioning hole. Warning tape fixing mechanism is two-way damping, built-in coil spring buffer in device. The utility model has the characteristics of stable structure, strong impact resistance, good warning effect, convenient assembly and disassembly, and is suitable for the safety protection of blasting site.
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Description

Technical Field

[0001] This utility model relates to the field of engineering safety protection technology, and more specifically, to a blasting safety protection warning line. Background Technology

[0002] In blasting operations, ensuring the safety of personnel on site is paramount. Traditional warning lines typically use simple ropes or ordinary plastic strips, which have several shortcomings. First, their simple structure makes them easily blown away by wind or damaged by external forces, failing to effectively prevent personnel from accidentally entering dangerous areas. Second, traditional warning lines lack impact resistance, easily breaking or deforming under the shockwaves or flying debris generated by blasting, rendering them ineffective in maintaining their warning function. Furthermore, traditional warning lines lack effective warning capabilities; at night or in low visibility conditions, personnel may have difficulty noticing their presence, increasing safety risks. Therefore, developing a structurally stable, impact-resistant, and effective blasting safety warning line is essential. Summary of the Invention

[0003] The purpose of this utility model is to provide a blasting safety protection warning line to solve the problems of unstable structure, poor impact resistance and insufficient warning function of existing warning lines.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A blasting safety protection warning line includes at least two sets of support units, with an impact-resistant warning strip between the support units. Each support unit includes a tripod support structure, a counterweight base, a main column, and a warning strip fixing mechanism. The counterweight base is mounted on the tripod support structure, the main column is mounted on the counterweight base, and the warning strip fixing mechanism is mounted on the side of the main column.

[0006] As an improvement of this utility model, the main column is a three-stage telescopic structure, and a rotating joint is provided on the main column. The rotating joint is used to fix the height of the main column.

[0007] As an improvement of this utility model, the surface of the impact-resistant warning tape is composite with a reflective film layer and a pressure sensing line.

[0008] As an improvement of this utility model, the impact-resistant warning tape has a three-layer composite structure, with an inner layer of Kevlar woven mesh, a middle layer of polyurethane foam, and an outer layer of PVC reflective film, and the pressure sensing lines are arranged at equal intervals along the warp direction.

[0009] As an improvement of this utility model, the pressure sensing line is connected to an early warning module. The early warning module includes a vibration sensor, an audible and visual alarm, a wireless transmitting unit, an ARM processor, and an emergency power supply. The emergency power supply powers the early warning module, and the vibration sensor, audible and visual alarm, wireless transmitting unit, and ARM processor are connected. When the pressure sensing line detects a deformation of >5% in the warning tape, an alarm is triggered, and the wireless module sends status information to the monitoring terminal.

[0010] As an improvement to this utility model, the counterweight base includes a sandbag compartment and magnetic positioning holes, with the magnetic positioning holes located on both sides of the counterweight base. This is used for connection with the triangular support mechanism and the main column.

[0011] As an improvement of this utility model, the warning tape fixing mechanism is a bidirectional damper, and the bidirectional damper has a built-in helical spring buffer.

[0012] The blasting safety protection warning line of this utility model has the following beneficial effects:

[0013] (1) This utility model adopts a three-legged support structure and a counterweight base to ensure that the support unit can remain stable under various terrain conditions. The sandbag bin of the counterweight base can be filled with sand or other heavy objects as needed to further enhance stability. In addition, the three-stage telescopic structure and rotating joint design of the main column allow the support unit to adjust its height according to actual needs and adapt to different blasting site environments.

[0014] (2) The impact-resistant warning tape adopts a three-layer composite structure. The inner Kevlar woven mesh has high strength and impact resistance, which can effectively resist the impact of flying stones and shock waves; the middle polyurethane foam layer has good buffering performance and can absorb some of the impact energy; the outer PVC reflective film not only has reflective warning function, but also protects the internal structure from external environmental erosion. This structural design allows the warning tape to remain intact during the blasting process and continue to play a warning role.

[0015] (3) The reflective film layer on the surface of the warning tape can reflect light at night or in low visibility conditions, providing a clear warning effect. Simultaneously, the warning module connected to the pressure sensing line can monitor the status of the warning tape in real time. When the warning tape deforms under external force, the vibration sensor will trigger an audible and visual alarm to alert on-site personnel to pay attention to safety. Furthermore, the wireless transmitting unit can send the status information of the warning tape to the monitoring terminal, enabling remote monitoring and management, further improving the safety of the blasting site. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2This is a cross-sectional view of the impact-resistant warning tape;

[0018] Figure 3 This is a framework diagram of the early warning module.

[0019] List of identifiers in attached diagrams:

[0020] 1. Tripod support structure; 2. Counterweight base; 3. Main column; 4. Warning tape fixing mechanism; 5. Rotating joint; 6. Kevlar braided mesh; 7. Polyurethane foam layer; 8. PVC reflective film; 9. Pressure sensing line; 10. Impact-resistant warning tape. Detailed Implementation

[0021] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inner" and "outer" refer to the directions toward or away from the geometric center of a specific component, respectively.

[0022] Furthermore, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] As shown in the figure, this utility model provides a blasting safety protection warning line, including at least two sets of support units. An impact-resistant warning strip 10 is set between the support units. Each support unit includes a tripod support structure 1, a counterweight base 2, a main column 3, and a warning strip fixing mechanism 4. The counterweight base 2 is set on the tripod support structure, the main column 3 is installed on the counterweight base 2, and the warning strip fixing mechanism 4 is installed on the side of the main column 3.

[0024] The main column 3 of this invention is a three-stage telescopic structure, and a rotating joint 5 is provided on the main column 3. The rotating joint 5 is used to fix the height of the main column 3.

[0025] The impact-resistant warning tape 10 of this utility model has a composite reflective film layer and a pressure sensing line 9 on its surface.

[0026] The impact-resistant warning tape 10 of this utility model has a three-layer composite structure, with an inner layer of Kevlar woven mesh 6, a middle layer of polyurethane foam 7, and an outer layer of PVC reflective film 8. The pressure sensing lines 9 are arranged at equal intervals along the warp direction.

[0027] The pressure sensing line 9 of this invention is connected to an early warning module. The early warning module includes a vibration sensor, an audible and visual alarm, a wireless transmitter, an ARM processor, and an emergency power supply. The emergency power supply powers the early warning module. The vibration sensor, audible and visual alarm, and wireless transmitter are connected to the ARM processor. When the pressure sensing line 9 detects a deformation of >5% in the warning tape, it triggers an alarm, and the wireless module sends status information to the monitoring terminal.

[0028] The counterweight base 2 of this utility model includes a sandbag compartment and magnetic positioning holes, which are located on both sides of the counterweight base 2. These holes are used for connection with the triangular support mechanism and the main column 3.

[0029] The warning tape fixing mechanism 4 described in this utility model is a bidirectional damper, and the bidirectional damper has a built-in helical spring buffer.

[0030] The working process of the blasting safety protection warning line provided by this utility model is as follows:

[0031] The tripod support structure 1 provides a stable support foundation, and the counterweight base 2 increases stability by filling it with sand or other heavy objects. The three-stage telescopic structure and rotating joint 5 of the main column 3 can be adjusted in height and angle according to the terrain and needs of the blasting site to ensure that the setting of the warning line meets safety requirements.

[0032] The three-layer composite structure of the impact-resistant warning tape 10 allows the inner Kevlar woven mesh 6 to withstand the main impact force when subjected to external impact, the middle polyurethane foam layer 7 to absorb some of the impact energy, and the outer PVC reflective film 8 to provide protection and warning. When the warning tape deforms under external force, the pressure sensing line 9 detects the deformation and transmits the signal to the warning module.

[0033] The vibration sensor in the early warning module monitors the status of the warning tape in real time. When the pressure sensing line 9 detects a deformation of more than 5% in the warning tape, the vibration sensor triggers the ARM processor. The ARM processor then controls the audible and visual alarm to sound an alarm, alerting on-site personnel to pay attention to safety. Simultaneously, the wireless transmitting unit sends the warning tape's status information to the monitoring terminal, enabling remote monitoring and management.

[0034] This utility model of blasting safety protection warning line, through its unique structural design and functional realization, can effectively improve the safety of blasting sites and protect the lives of personnel, and has broad application prospects.

[0035] The accompanying drawings merely illustrate the technical concept of this utility model and should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, various improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A blasting safety protection warning line, comprising at least two sets of support units, wherein an impact-resistant warning strip is provided between the support units, characterized in that: The support unit includes a tripod support structure, a counterweight base, a main column, and a warning tape fixing mechanism. The counterweight base is located on the tripod support structure, the main column is installed on the counterweight base, and the warning tape fixing mechanism is installed on the side of the main column.

2. The blasting safety protection warning line according to claim 1, characterized in that: The main column is a three-stage telescopic structure, and a rotating joint is provided on the main column.

3. The blasting safety protection warning line according to claim 1, characterized in that: The impact-resistant warning tape has a composite reflective film layer and pressure sensing lines on its surface.

4. The blasting safety protection warning line according to claim 3, characterized in that: The impact-resistant warning tape has a three-layer composite structure: the inner layer is a Kevlar woven mesh, the middle layer is a polyurethane foam layer, and the outer layer is a PVC reflective film. The pressure sensing lines are arranged at equal intervals along the warp direction.

5. The blasting safety protection warning line according to claim 3 or 4, characterized in that: The pressure sensing line is connected to an early warning module, which includes a vibration sensor, an audible and visual alarm, a wireless transmitting unit, an ARM processor, and an emergency power supply. The emergency power supply powers the early warning module, and the vibration sensor, audible and visual alarm, wireless transmitting unit, and ARM processor are connected.

6. The blasting safety protection warning line according to claim 1, characterized in that: The counterweight base includes a sandbag compartment and magnetic positioning holes, which are located on both sides of the counterweight base.

7. The blasting safety protection warning line according to claim 1, characterized in that: The warning tape fixing mechanism is a two-way damper, and the two-way damper has a built-in helical spring buffer.