Construction protection device under high-voltage line
The construction protection device, which combines support columns, hydraulic lifting columns, and sensors, allows for real-time monitoring and adjustment of the protective net height. This solves the problem of inconvenient height adjustment of construction protection devices under high-voltage lines, and improves construction safety and efficiency.
Patent Information
- Application Number
- CN202520789847.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-04-24
AI Technical Summary
The existing protective devices for construction under high-voltage lines are inconvenient to adjust in height and difficult to adjust flexibly, which increases the risk of construction equipment touching overhead high-voltage lines.
The system employs a combination of support columns, hydraulic lifting columns, controllers, protective nets, sensors, alarms, and a centralized control box. Sensors monitor the sag of high-voltage lines and the distance to construction machinery, hydraulic lifting columns adjust the height of the protective nets, and alarms promptly alert construction personnel, ensuring that equipment operates within a safe range.
This has improved the safety and efficiency of construction under high-voltage lines, reduced the risk of equipment touching high-voltage lines, and increased the flexibility and safety of construction.
Smart Images

Figure CN223824661U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of safe construction technology, and specifically relates to a protective device for construction under high voltage lines. Background Technology
[0002] Construction projects often involve working under high-voltage lines. Without proper protection, ground-based construction equipment may come into contact with these lines, which could damage them or cause a safety accident.
[0003] Existing protective measures for construction under high-voltage lines generally involve hanging a height restriction warning line between the overhead high-voltage power line poles in the construction area, and then hanging a warning ball on the height restriction warning line. The construction equipment operator judges the position of the height restriction warning line by observing the position of the warning ball to avoid the equipment exceeding the height of the height restriction warning line and entering the dangerous range of touching the overhead high-voltage line. However, when setting up and hanging the warning line on site, it is difficult to flexibly adjust the specific height of the height restriction warning line, which is very inconvenient to operate. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a high-voltage line construction protection device that can solve the problem of inconvenient height adjustment of construction protection measures in the prior art.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a high-voltage line construction protection device, including support columns, hydraulic lifting columns, controllers, protective nets, sensors, alarms, and a centralized control box. The support columns are arranged in two rows and are relatively parallel. The hydraulic lifting columns are respectively installed on the top of each support column. The controller is installed on each support column and is used to control the lifting height of the hydraulic lifting columns on the corresponding support columns. The protective net is installed on each hydraulic lifting column. The sensors are arranged at intervals on the protective net, corresponding one-to-one with the support columns. The sensors are used to monitor the sagging height of the high-voltage line and the distance between the top of the construction machinery and the protective net. The sensors are electrically connected to the centralized control box, and the centralized control box is electrically connected to each controller. The alarms are arranged at intervals on the protective net and are electrically connected to the centralized control box.
[0006] Furthermore, the protective net is equipped with a warning light, which is connected to the circuit of the centralized control box.
[0007] Furthermore, a ladder is provided on the support column.
[0008] Furthermore, each support column is equipped with a mounting plate at its bottom end, and each mounting plate is equipped with fastening bolts that connect to the ground.
[0009] Furthermore, the support column and the mounting plate are integrally formed.
[0010] Furthermore, connecting rods are provided between the mounting plates.
[0011] Furthermore, the connecting rod has a hollow internal structure.
[0012] Furthermore, the protective netting includes a wire mesh and a nylon rope mesh, wherein the wire mesh is connected to each support column, and the nylon rope mesh is disposed on the wire mesh.
[0013] Compared with existing technologies, the advantages of this utility model are as follows: By installing hydraulic lifting columns on each support column and protective nets on each hydraulic lifting column, the protective nets ensure that the mechanical equipment is always within the protection range during construction, guaranteeing safe construction operations under high-voltage lines and improving construction efficiency; at the same time, the protective nets further prevent objects such as plastic bags and plastic films from being blown onto the high-voltage lines by the wind, reducing safety hazards; by setting up sensors, the sag height of the high-voltage lines caused by temperature changes and the distance between the top of the construction machinery and the protective net can be monitored in real time, enabling timely judgment of problems caused by the sag of the high-voltage lines exceeding the high-voltage line safety protection zone; by setting up a controller, the height of the protective net can be adjusted through the hydraulic lifting columns according to the sensor signals, ensuring that the distance between the protective net and the high-voltage lines is always at the preset distance, greatly improving the convenience of control and adjustment; simultaneously, by monitoring the height of the top of the mechanical equipment and the protective net, when the top of the mechanical equipment approaches the height of the protective net, the sensor will feed back the signal to the centralized control box, which will then control the alarm to issue an alarm, ensuring that the mechanical equipment is always within the safe protection range during construction. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of a construction protection device under high voltage lines according to an embodiment of the present invention;
[0015] Figure 2 A flowchart illustrating the method of using a construction protection device under high-voltage lines according to an embodiment of this utility model;
[0016] Figure 3 This is a flowchart of step S02 of a method for using a construction protection device under high voltage lines, as proposed in an embodiment of this utility model.
[0017] Figure reference numerals:
[0018] 1-Support column; 11-Ladder;
[0019] 2-Hydraulic lifting column;
[0020] 3-Controller;
[0021] 4-Protective netting; 41-Steel wire mesh; 42-Nylon rope netting;
[0022] 5-Sensors;
[0023] 6- Warning lights;
[0024] 7-Mounting plate; 71-Fasting bolt; 72-Connecting rod;
[0025] 8-High voltage line;
[0026] 9-Central control box. Detailed Implementation
[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments, not all embodiments. Based on this embodiment, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0028] Reference Figure 1This embodiment proposes a construction protection device under high-voltage lines, including support columns 1, hydraulic lifting columns 2, and controllers 3. The support columns 1 are arranged in two rows and are relatively parallel. The hydraulic lifting columns 2 are respectively installed on the top of each support column 1. The controllers 3 are respectively installed on each support column 1 and are used to control the lifting height of the hydraulic lifting columns 2 on the corresponding support column 1. In addition, the construction protection device also includes a protective net 4, sensors 5, alarms (not shown in the attached drawings), and a centralized control box 9. The protective net 4 is installed on each hydraulic lifting column 2. The sensors 5 are arranged at intervals on the protective net 4, corresponding one-to-one with the support columns 1. The sensors 5 are used to monitor the sag height of the high-voltage line 8 and the distance between the top of the construction machinery and the protective net 4. The sensors 5 are electrically connected to the centralized control box 9, and the centralized control box 9 is electrically connected to each controller 3. The alarms are arranged at intervals on the protective net 4 and are electrically connected to the centralized control box 9. By installing hydraulic lifting columns 2 on each support column 1 and protective nets 4 on each hydraulic lifting column 2, the protective nets 4 ensure that the mechanical equipment is always within the protection range during construction, guaranteeing safe construction operations under the high-voltage line 8 and improving construction efficiency. Simultaneously, the protective nets 4 further prevent objects such as plastic bags and films from being blown onto the high-voltage line by the wind, reducing safety hazards. By installing sensors 5, the sag height of the high-voltage line 8 and the distance between the top of the construction machinery and the protective net 4 can be monitored in real time, enabling timely detection of issues where the high-voltage line 8 has descended beyond its safety protection zone. By installing a controller 3, the height of the protective net 4 can be adjusted via the hydraulic lifting columns 2 based on the signals from the sensors 5, ensuring that the distance between the protective net 4 and the high-voltage line 8 remains at a preset distance. At the same time, the sensors 5 monitor the height of the top of the mechanical equipment relative to the protective net 4. When the top of the mechanical equipment approaches the height of the protective net 4, the sensors 5 will send a signal to the central control box 9, which will then control the alarm to issue an alert, ensuring that the mechanical equipment remains within the safe protection range during construction.
[0029] In this embodiment, please refer to Figure 1 As shown, the protective net 4 is equipped with a warning light 6, which is electrically connected to the centralized control box 9. Thus, during nighttime construction, the high-voltage line 8 heats up, causing a temperature change and a drop in its height. This results in the distance between the high-voltage line 8 and the protective net 4 falling below a preset distance. When the sensor 5 detects this information and transmits it to the centralized control box 9, the box activates the warning light 6 to serve as a warning. Upon seeing the warning light 6, construction workers will drive the machinery away from the area covered by the high-voltage line 8. Once the distance between the high-voltage line 8 and the protective net 4 reaches the preset distance, the machinery is adjusted to resume operation, significantly improving the safety of the construction work.
[0030] In this embodiment, when the high-voltage line 8 is heated, causing a temperature change that leads to a decrease in its height (e.g., 1 cm), the sensor 5 detects this decrease and sends the signal back to the centralized control box 9, which in turn sends it back to the controller 3. The controller 3 then uses the hydraulic lifting column 2 to simultaneously lower the protective net 4 by 1 cm, ensuring that the distance between the hydraulic lifting column 2 and the protective net 4 meets the preset distance. When the distance between the protective net 4 and the ground is reduced by 1 cm, the construction personnel can adjust the height of the machinery accordingly, for example, by lowering it by 1 cm, to ensure that the working area of the machinery is within the safe protection zone, greatly improving operational safety.
[0031] In this embodiment, the preset distance between the high-voltage line 8 and the protective netting 4 is 20cm to 50cm. Specifically, the preset distance between the high-voltage line 8 and the protective netting 4 can be 20cm, 30cm, 40cm, 50cm, etc. Of course, in this application, the preset distance can also be set as a range according to the actual situation and specific needs, and is not limited to a single value here.
[0032] In this embodiment, please refer to Figure 1 As shown, a ladder 11 is provided on the support column 1. This allows construction workers to climb to the top of the support column 1 via the ladder 11 to install the protective netting 4, improving the ease of installation.
[0033] In this embodiment, please refer to Figure 1 As shown, each support column 1 has a mounting plate 7 at its bottom end, and each mounting plate 7 has a fastening bolt 71 for connecting to the ground. In this embodiment, the support column 1 and the mounting plate 7 are integrally formed. By setting the mounting plate 7, a larger contact area with the ground can be achieved, and the mounting plate 7 can be fixed by the fastening bolt 71, thereby improving the wind resistance of the support column 1.
[0034] In this embodiment, please refer to Figure 1 As shown, connecting rods 72 are provided between the mounting plates 7. By using connecting rods 72 between adjacent mounting plates 7, the support columns 1 form a unified structure, greatly improving the overall wind resistance of each support column 1. The connecting rods 72 have a hollow interior and can be used for laying cables.
[0035] In this embodiment, please refer to Figure 1As shown, the protective net 4 includes a wire mesh 41 and a nylon rope net 42. The wire mesh 41 is connected to each support column 1, and the nylon rope net 42 is placed on the wire mesh 41. The wire mesh 41 forms a grid structure as a base, giving the protective net 4 high strength. The nylon rope net 42 laid on the wire mesh 41 gives the protective net 4 good plasticity and toughness, and forms a dense protective layer, effectively preventing objects such as plastic bags and plastic films from being blown onto the high-voltage lines by the wind, reducing safety hazards.
[0036] In this embodiment, please refer to Figure 2 As shown, a method for using a protective device for construction under high-voltage lines is also provided, including the following steps:
[0037] S01: Fix each support column 1 to the reinforced concrete base using mounting plates 7, and connect two adjacent mounting plates 7 using connecting rods 72;
[0038] S02: Install the protective net 4 on the top of each support column 1, and adjust the height of the protective net 4 according to the preset distance between the protective net 4 and the high-voltage line 8.
[0039] In this embodiment, each support column 1 is fixed to the reinforced concrete base by mounting plates 7, and adjacent mounting plates 7 are fixedly connected by connecting rods 72, so that each support column 1 forms an integral structure. Then, a protective net 4 is installed on the top of each support column 1, and the height of the protective net 4 is adjusted according to the preset distance between the protective net 4 and the high-voltage line 8. After the height is adjusted, the protective net 4 is fixedly installed. The protective net 4 ensures that the mechanical equipment is always within the protection range during the construction process, ensuring safe construction operations under the high-voltage line 8.
[0040] In this embodiment, the mounting plate 7 is fixed to the reinforced concrete base by fastening bolts 71.
[0041] In this embodiment, please refer to Figure 3 As shown, step S02 includes:
[0042] S021: According to the preset safety distance between the high-voltage line 8 and the protective net 4, the height of the protective net 4 is adjusted by the hydraulic lifting column 2 to meet the preset height requirement;
[0043] S022: The sensor 5 on the protective net 4 monitors the sag of the high-voltage line 8 due to heat. When the high-voltage line 8 sags and the distance between it and the protective net 4 is less than the preset distance, the height of the protective net 4 is adjusted accordingly by the hydraulic lifting column 2.
[0044] In this embodiment, step S022 includes:
[0045] When the high-voltage line 8 droops down and the distance between it and the protective net 4 is less than the preset distance, the warning light 6 will light up.
[0046] The controllers 3 on each support column 1 are controlled by the central control box 9 on the ground. The controllers 3 control the hydraulic lifting column 2 to work. The hydraulic lifting column 2 drives the protective net 4 to rise and fall to reach the preset safe height.
[0047] In this embodiment, when the high-voltage line 8 descends and the distance between it and the protective net 4 is less than the preset distance, the warning light 6 illuminates to serve as a reminder. The controllers 3 on each support column 1 are controlled by the centralized control box 9 on the ground, so that the construction personnel can remotely operate the working status of each controller on the ground. According to the actual situation, the lifting and lowering of the protective net 4 is adjusted by the hydraulic lifting column 2 so that the protective net 4 reaches the preset height requirement, which greatly improves the convenience of control and adjustment.
[0048] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.
Claims
1. A protective device for construction under high-voltage lines, characterized in that: The system includes support columns, hydraulic lifting columns, controllers, protective nets, sensors, alarms, and a centralized control box. The support columns are arranged in two rows and are relatively parallel. The hydraulic lifting columns are respectively installed on the top of each support column. The controllers are installed on each support column and are used to control the lifting height of the hydraulic lifting columns on the corresponding support columns. The protective nets are installed on each hydraulic lifting column. The sensors are arranged at intervals on the protective nets, corresponding one-to-one with the support columns. The sensors are used to monitor the sagging height of the high-voltage lines and the distance between the top of the construction machinery and the protective nets. The sensors are electrically connected to the centralized control box, which is electrically connected to each controller. The alarms are arranged at intervals on the protective nets and are also electrically connected to the centralized control box.
2. The high-voltage line construction protection device according to claim 1, characterized in that: The protective net is equipped with a warning light, which is connected to the circuit of the centralized control box.
3. The high-voltage line construction protection device according to claim 1 or 2, characterized in that: A ladder is provided on the support column.
4. The high-voltage line construction protection device according to claim 1 or 2, characterized in that: Each support column has a mounting plate at its bottom end, and each mounting plate has fastening bolts that connect to the ground.
5. The high-voltage line construction protection device according to claim 4, characterized in that: The support column and the mounting plate are integrally formed.
6. The high-voltage line construction protection device according to claim 4, characterized in that: A connecting rod is provided between the mounting plates.
7. The high-voltage line construction protection device according to claim 6, characterized in that: The connecting rod has a hollow structure inside.
8. The high-voltage line construction protection device according to claim 1 or 2, characterized in that: The protective netting includes a wire mesh and a nylon rope net. The wire mesh is connected to each support column, and the nylon rope netting is placed on the wire mesh.