Safety protection device for ETC portal maintenance
By introducing components such as protective steel cables and self-locking fall arrestors into the ETC gantry system, the problem of the inability to quickly adjust the safety belt during ETC gantry maintenance has been solved, improving maintenance efficiency and safety and providing additional protection.
Patent Information
- Application Number
- CN202520297295.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-24
AI Technical Summary
The lack of protective measures during maintenance of the ETC gantry system prevents the safety belts from being adjusted quickly, reducing maintenance efficiency and increasing safety risks.
Design a safety protection device that includes connectors, protective steel cables, self-locking fall arresters, safety ropes, and high-altitude work safety belts. The device achieves a stable connection between the safety rope and the safety belt through the sliding connection between the self-locking fall arrester and the protective steel cable, and is equipped with protective buckles as a secondary protection.
It improves the safety and ease of operation of ETC gantry maintenance, reduces the hassle of adjusting the seat belt position, improves maintenance efficiency, and provides additional safety protection in the event of a fall.
Smart Images

Figure CN223926938U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ETC gantry maintenance technology, specifically to a safety protection device for ETC gantry maintenance. Background Technology
[0002] As an important facility for deepening the reform of the toll road system, the ETC gantry system is mainly used to realize the automatic identification of vehicles and segmented tolling. Its structure usually includes a tall gantry and complex electronic equipment. The ETC gantry system requires regular maintenance to ensure its stable operation and accuracy.
[0003] During routine maintenance of the ETC gantry system, the ladders on both sides of the gantry lack necessary protective facilities. Maintenance personnel can only climb to the top of the gantry using the ladders on both sides and then fasten their safety belts to the gantry for safety protection. However, maintenance personnel need to move frequently when working on the gantry, and the existing safety belt design does not support quick adjustments while moving. In addition, due to the special structure of the gantry, maintenance personnel can only readjust the position of the safety belt while walking, which is very inconvenient. This not only reduces the efficiency of maintenance work but also increases the safety risks for maintenance personnel. Utility Model Content
[0004] The purpose of this utility model is to provide a safety protection device for ETC gantry maintenance that improves the safety, ease of operation, and efficiency of ETC gantry maintenance operations. This device addresses the technical problems of existing ETC gantry systems, such as the lack of protective facilities on the ladders on both sides and the safety belt design that does not support quick position adjustment during routine maintenance, which leads to low maintenance efficiency and increased safety risks.
[0005] To solve the above technical problems, the solution adopted by this utility model is as follows:
[0006] A safety protection device for ETC gantry maintenance includes connectors, a protective steel cable, a self-locking fall arrestor, a safety rope, and a high-altitude work safety belt. Two connectors are provided, located at both ends of the protective steel cable; one is fixedly installed on the concrete ground on one side of the ETC gantry, and the other is fixedly installed at the top of the other side of the ETC gantry. The self-locking fall arrestor is sleeved on the protective steel cable. One end of the safety rope is connected to the self-locking fall arrestor, and the other end is connected to the high-altitude work safety belt. When performing ETC gantry maintenance, maintenance personnel wear high-altitude work safety belts and connect them to self-locking fall arresters on the protective steel cable via safety ropes. As maintenance personnel climb the ladders on both sides of the gantry, they move the self-locking fall arresters along the protective steel cable. When climbing up or down the gantry, in the event of a fall, the self-locking fall arresters on the protective steel cable immediately react and lock onto the protective steel cable, thereby protecting personnel safety. The protective steel cable is installed on the concrete ground on one side of the ETC gantry and on the top of the ETC gantry on the other side via two connectors, keeping the protective steel cable taut.
[0007] Furthermore, the safety rope is equipped with a safety hook; the high-altitude work safety belt is equipped with a matching D-ring; the safety rope is connected to the high-altitude work safety belt via the safety hook and the D-ring. The high-altitude work safety belt, through the safety hook, D-ring, and safety rope, ensures a stable connection between the worker and the safety belt during high-altitude work. The safety hook ensures quick and easy attachment and release of the D-ring and safety rope, facilitating operation by maintenance personnel.
[0008] Furthermore, a fixed seat and a support seat are provided at the top of the other side of the ETC gantry; one of the connecting pieces is welded to the fixed seat; two support seats are provided, respectively installed on one side and the middle of the top of the ETC gantry; the protective steel cable is connected to the top of the ETC gantry through the support seats. The fixed seat is fixedly installed on the ETC gantry, serving as the welding point for the connecting piece. The support seats are located on one side and the middle of the top of the ETC gantry, used to support the protective steel cable and ensure its stability at the top of the ETC gantry, thus enhancing the overall stability and safety of the protective steel cable.
[0009] Furthermore, the protective cable is equipped with a protective buckle; the protective buckle is located 1.6 to 2 meters above the ground. As a secondary protection measure, the protective buckle provides additional safety in the event of a fall by maintenance personnel. When maintenance personnel accidentally lose their balance or fall, the protective buckle, located at a height of 1.6 to 2 meters, can quickly lock and engage the self-locking fall arrestor, preventing further fall and thus protecting the safety of the maintenance personnel.
[0010] The working principle of this utility model is as follows:
[0011] When maintenance personnel perform maintenance on the ETC gantry, they first put on a high-altitude work safety belt and attach the safety hook of the safety rope to the D-ring of the safety belt. The high-altitude work safety belt is then connected to the protective steel cable via the safety rope and self-locking fall arrestor. They climb the ladders on both sides of the gantry to the top of the ETC gantry for maintenance and repair work. The protective steel cable at the top of the ETC gantry is connected to the top of the gantry via a support base, securing the protective steel cable. The self-locking fall arrestor is slidably connected to the protective steel cable, facilitating movement of maintenance personnel at the top of the ETC gantry. If a maintenance personnel accidentally loses their balance or falls, the self-locking fall arrestor will lock onto the protective steel cable, preventing further falls. If the self-locking fall arrestor malfunctions and slides downwards, it can be quickly locked by a protective buckle 1.6-2 meters above the ground, preventing further slides and injuries to the maintenance personnel. The entire device effectively improves the safety of high-altitude maintenance work on the ETC gantry.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. The protective steel cable of this utility model is fixed by connectors at both ends. The combination of the self-locking fall arrestor and the protective steel cable can effectively prevent personnel from falling to the ground and improve the safety of high-altitude operations. Maintenance personnel can move freely on the gantry by connecting the safety rope to the self-locking fall arrestor and sliding the self-locking fall arrestor with the protective steel cable, which reduces the trouble of adjusting the position of the safety belt at high altitudes and effectively improves the overall efficiency of maintenance operations.
[0014] 2. This utility model can quickly connect the safety rope and the high-altitude work safety belt through the safety hook and D-ring, which facilitates the operation of maintenance personnel and improves the efficiency of maintenance work. The protective buckle can serve as a secondary protection measure, providing additional safety protection in the event of a fall by maintenance personnel. It can quickly lock and lock the self-locking fall arrestor to prevent the fall from continuing and thus protect the safety of maintenance personnel. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the safety rope connection structure of this utility model.
[0017] In the diagram: 1. ETC gantry; 2. Connector; 3. Protective steel cable; 31. Protective buckle; 4. Self-locking fall arrestor; 5. Safety rope; 51. Safety hook; 6. High-altitude work safety belt; 61. D-ring; 7. Fixing seat; 8. Support seat. 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. 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.
[0019] The following is a detailed description of a safety protection device for ETC gantry maintenance according to the present invention, with reference to the accompanying drawings: Example 1
[0020] A safety protection device for ETC gantry maintenance, used for the maintenance of ETC gantry 1, includes a connector 2, a protective steel cable 3, a self-locking fall arrester 4, a safety rope 5, and a high-altitude work safety belt 6; the connector 2 is provided in two parts, respectively located at both ends of the protective steel cable 3, one fixedly installed on the cement ground on one side of the ETC gantry 1, and the other fixedly installed on the top of the other side of the ETC gantry 1; the self-locking fall arrester 4 is sleeved on the protective steel cable 3; one end of the safety rope 5 is connected to the self-locking fall arrester 4, and the other end is connected to the high-altitude work safety belt 6.
[0021] The working principle of this embodiment is as follows:
[0022] When performing maintenance on ETC gantry 1, maintenance personnel wear high-altitude work safety belts 6 and connect them to self-locking fall arresters 4 on the protective steel cable 3 via safety ropes 5. As maintenance personnel climb the ladders on both sides of ETC gantry 1, they move the self-locking fall arresters 4 along the protective steel cable 3. When reaching the top of ETC gantry 1 for maintenance, the self-locking fall arresters 4 also facilitate movement along the protective steel cable 3 at the top of ETC gantry 1 to inspect ETC gantry 1 at different locations. If a fall occurs while maintenance personnel are climbing up or down the gantry, the self-locking fall arresters 4 on the protective steel cable 3 will immediately react and lock onto the protective steel cable 3, thus protecting personnel safety. The protective steel cable 3 is installed on the cement ground on one side of ETC gantry 1 and on the top of ETC gantry 1 on the other side via two connectors 2, keeping the protective steel cable 2 taut and improving its load-bearing capacity. Example 2
[0023] The difference from Embodiment 1 is that the safety rope 5 is equipped with a safety hook 51; the high-altitude work safety belt 6 is equipped with a D-shaped ring 61 that matches the hook 51; the safety rope 5 is connected to the high-altitude work safety belt 6 through the safety hook 51 and the D-shaped ring 61; a fixed seat 7 and a support seat 8 are provided at the top of the other side of the ETC gantry 1; one of the connectors 2 is welded to the fixed seat 7; two support seats 8 are provided, which are respectively installed on one side and the middle of the top of the ETC gantry 1; the protective steel cable 3 is connected to the top of the ETC gantry 1 through the support seat 8; the protective steel cable 3 is equipped with a protective buckle 31; the protective buckle 31 is located 1.6m above the ground on the protective steel cable 3.
[0024] The fixed base 7 is fixedly installed on the ETC gantry 1 and serves as the welding point for the connector 2. The support base 8 is located on one side and in the middle of the top of the ETC gantry 1 and is used to support the protective steel cable 3 to ensure the stability of the protective steel cable 3 at the top of the ETC gantry 1. The high-altitude work safety belt 6 is connected to the safety rope 5 through the safety hook 51 and the D-ring 61. The maintenance personnel can quickly hook the safety hook 51 on the safety rope 5 onto the D-ring 61 of the high-altitude work safety belt 6 for easy operation. The protective buckle 31 serves as a secondary protection measure and can provide additional safety protection when the maintenance personnel fall. When the maintenance personnel accidentally lose their balance or fall, the protective buckle 31, located at a height of 1.6 meters, can quickly lock and lock the self-locking fall arrestor 4 to prevent the fall from continuing and thus protect the safety of the maintenance personnel.
[0025] The working principle of this embodiment is the same as that of Embodiment 1.
[0026] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. The present utility model improves the safety and efficiency of high-altitude operations through the synergistic effect of the self-locking fall arrestor, protective steel cable, safety rope and safety belt, which can effectively reduce the risk of fall accidents and ensure the safety of maintenance personnel. For those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A safety guard for ETC gantry maintenance, for maintenance of an ETC gantry (1), characterized in that: Including connecting piece (2), guard cable (3), self locking anti falling device (4), safety rope (5) and high altitude operation safety belt (6), connecting piece (2) is equipped with two, respectively located in both ends of guard cable (3), one is fixedly installed in the cement ground of ETC portal (1) one side, another is fixedly installed the top of ETC portal (1) other side, self locking anti falling device (4) is sleeved in guard cable (3), safety rope (5) one end is connected with self locking anti falling device (4), the other end is connected with high altitude operation safety belt (6).
2. The safety guard for ETC gantry maintenance of claim 1, wherein: Safety rope (5) is equipped with safety hook (51), high altitude operation safety belt (6) is equipped with D-shaped ring (61) matched with (51), safety rope (5) is connected with high altitude operation safety belt (6) through safety hook (51) and D-shaped ring (61).
3. The safety guard for ETC gantry maintenance of claim 1, wherein: The top of ETC portal (1) other side is equipped with fixed seat (7) and support seat (8), one connecting piece (2) is welded with fixed seat (7), support seat (8) is equipped with two, is installed in the top of ETC portal (1) one side and middle part respectively, guard cable (3) is connected with the top of ETC portal (1) through support seat (8).
4. The safety guard for ETC gantry maintenance of claim 1, wherein: Guard cable (3) is equipped with protection buckle (31), protection buckle (31) is located at 1.6~2m apart from the ground of guard cable (3).