Flexible blocking device for tunnel safety management and control

Abstract

The utility model discloses a kind of flexible blocking devices for tunnel safety management and control, belong to traffic safety protection technical field, to solve the rigid secondary injury of existing tunnel blocking device, poor flexible stability, the problem of unreliable retraction locking. The device includes roller shutter assembly, traction assembly, electromagnet disc, bending support and limiting assembly;Roller shutter assembly contains roller shutter box, winding roller shaft, fluorescent roller shutter curtain with round through hole, fluorescent cloth strip and driving motor, can realize flexible blocking and efficient warning;Traction assembly is composed of traction rope and counterweight iron block, auxiliary curtain smoothly unrolls and prevents scattering during winding;Electromagnet disc cooperates with counterweight iron block, realizes curtain lower end flexible positioning and firm locking;Limiting assembly passes through electric bolt and limiting sleeve, prevent curtain unexpected action.This device has flexible protection, automatic retraction, stable positioning and efficient warning characteristics, suitable for tunnel routine operation and emergency management and control, can improve traffic safety and control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of traffic safety protection technology, and in particular to a flexible barrier device for tunnel safety control. Background Technology

[0002] In the daily operation and emergency management of tunnels, barrier devices are needed to achieve functions such as lane closure and risk isolation in order to ensure traffic safety.

[0003] Existing tunnel barrier solutions have significant limitations and cannot meet the requirements for efficient and safe control. Specific problems are as follows: Rigid devices pose significant risks: Traditionally, rigid structures such as metal railings and concrete piers are commonly used. While they can provide physical barriers, they can easily cause secondary injuries to vehicles and personnel upon collision. Furthermore, their installation and dismantling require damage to the tunnel floor or walls, which can affect the structural integrity of the tunnel.

[0004] Poor stability of flexible devices: Some flexible barrier devices (such as ordinary warning tapes and canvas fences) rely on manual deployment and fixation, which is not only inefficient, but also easily affected by airflow in the tunnel and wind pressure generated by vehicles passing by, resulting in shaking and displacement, causing the barrier range to fail. The warning effect is also greatly reduced in low light environments due to the lack of night light design.

[0005] Unreliable winding and locking: Existing devices mostly lack automated winding mechanisms, and manual operation is time-consuming and labor-intensive; moreover, they lack stable locking structures, which can easily lead to unexpected unfolding or retraction due to vibration or accidental contact, making it impossible to meet the rapid control needs in the event of a sudden tunnel accident.

[0006] To address this, a flexible barrier device for tunnel safety management is proposed. Utility Model Content

[0007] The purpose of this invention is to solve the above problems by proposing a tunnel barrier device that combines flexible protection, automatic retraction and extension, stable positioning, and efficient warning features.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a flexible barrier device for tunnel safety control, comprising a roller shutter assembly for realizing the flexible barrier function, and an electromagnet disc for adsorbing and positioning the lower end of the roller shutter assembly; both ends of the roller shutter assembly are provided with traction components for pulling the roller shutter assembly to unfold, both ends of the top surface of the roller shutter assembly are fixedly equipped with bending brackets for installing the roller shutter assembly, and one end of the roller shutter assembly is fixedly equipped with a limiting component for locking the rotation state of the roller shutter assembly; the electromagnet disc is arranged vertically corresponding to the traction component, and the electromagnet disc is located directly below the traction component.

[0009] Preferably, the roller blind assembly includes a roller blind box forming an installation space inside, a take-up roller shaft rotatably installed in through holes at both ends inside the roller blind box, a fluorescent roller blind curtain with one end fixed to the outside of the take-up roller shaft by adhesive and capable of being rolled up on the take-up roller shaft, fluorescent fabric strips fixed to the back of the fluorescent roller blind curtain by sewing process and evenly distributed along the length of the fluorescent roller blind curtain, and a motor fixedly assembled in a circular frame at one end of the roller blind box for driving the take-up roller shaft to rotate.

[0010] Preferably, the lower ends of the two bending brackets are fixedly connected to the two ends of the top surface of the roller shutter box by welding; the surface of the fluorescent roller shutter curtain has a row of circular through holes for weight reduction and ventilation corresponding to the position of each fluorescent strip; the output end of the motor is fixedly connected to one end of the winding roller shaft, and the motor can drive the winding roller shaft to rotate around its own axis after being powered on, thereby realizing the winding or unwinding operation of the fluorescent roller shutter curtain.

[0011] Preferably, the traction assembly includes traction ropes that are fixed to the two lower corners of the fluorescent roller blind curtain by sewing, and counterweight iron blocks that are fixed to the lower end of the traction ropes by binding or welding and are used to increase the weight of the traction ropes to assist the fluorescent roller blind curtain in unfolding.

[0012] Preferably, the limiting component includes an electric latch fixed to one end of the top surface of the roller shutter box by welding and having a telescopic function, and a limiting sleeve fixed to the end of the take-up roller shaft away from the motor by welding and used to cooperate with the electric latch; the axis of the limiting sleeve is collinear with the axis of the take-up roller shaft, and the limiting sleeve is adapted to the output end of the electric latch.

[0013] Preferably, when the electric latch is energized, its output end can be vertically inserted into the interior of the limiting sleeve. By restricting the rotational freedom of the winding roller shaft, the locking effect on the roller blind assembly is achieved, preventing the fluorescent roller blind curtain from unfolding or retracting unexpectedly.

[0014] The beneficial effects of this utility model are as follows: By setting up this flexible barrier device, the specific beneficial effects are as follows: it effectively combines barrier and warning: the fluorescent roller curtain combined with fluorescent cloth strips enhances the visibility in low light environments and can be quickly deployed to cover the tunnel lanes laterally, achieving flexible barrier while effectively warning vehicles and personnel and reducing traffic risks. Stable and smooth unfolding and rewinding: The traction component uses the weight of the counterweight to ensure that the curtain unfolds without wrinkles and hangs vertically; when rewinding, the traction rope can also prevent the curtain from loosening, and together with the motor, the power output is stable, making the unfolding and rewinding process efficient and precise. Flexible and stable positioning: The electromagnet disc works in conjunction with the counterweight block to attract and fix the curtain when powered on and release it when powered off without hindering the rewinding. The "positioning-release" state can be flexibly switched to avoid the curtain shaking due to airflow and ensure the stability of the barrier. Comprehensive safety protection: The limiting component can lock the rotation state of the take-up roller shaft to prevent the curtain from moving unexpectedly; the curtain through-holes take into account both ventilation and shielding, avoiding airflow impact and blocking the interior of the area, thus improving the safety of use. Attached Figure Description

[0015] Appendix Figure 1 This is a schematic diagram of the overall structure of this utility model; Appendix Figure 2 This is the utility model Figure 1 Enlarged diagram of part A in the middle; Appendix Figure 3 This is the utility model Figure 1 Enlarged diagram of section B; Appendix Figure 4 This is a partial structural diagram of both ends of this utility model; Appendix Figure 5 This is an exploded view of one end of the roller shutter assembly of this utility model; Appendix Figure 6 This is the utility model Figure 5 Enlarged diagram of section C.

[0016] Legend: 1. Roller blind assembly; 101. Roller blind box; 102. Retracting roller; 103. Fluorescent roller blind curtain; 104. Fluorescent fabric strip; 105. Motor; 2. Traction assembly; 201. Traction rope; 202. Counterweight block; 3. Electromagnetic disc; 4. Bending bracket; 5. Limiting assembly; 501. Electric latch; 502. Limiting sleeve. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only a part of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1-6 As shown, the roller shutter assembly 1 is the core of the device to realize the flexible barrier function. Each component of the roller shutter assembly 1 has a clear division of labor and works together to ensure the barrier effect.

[0019] The main function of the traction component 2 is to assist the fluorescent roller blind 103 to unfold quickly and smoothly, and to strengthen the fixation of the blind during rewinding to prevent it from becoming loose.

[0020] Installed in a ground groove at the end of the tunnel and corresponding vertically to the traction component 2, it is a key component for positioning the lower end of the fluorescent roller shutter curtain 103: when powered on, it generates magnetism, which can firmly attract the counterweight iron block 202, fixing the lower end of the fluorescent roller shutter curtain 103 to a preset position on the ground, preventing the curtain from shaking due to airflow in the tunnel and ensuring a stable blocking state; when the power is cut off during winding, the magnetism disappears, releasing the counterweight iron block 202, without hindering the curtain from retracting with the winding roller shaft 102, realizing flexible switching between "positioning and release".

[0021] The bending bracket 4 serves as a "bridge" connecting the device to the tunnel structure. The lower ends of the two bending brackets 4 are fixed to the top two ends of the roller shutter box 101 by welding, and the upper end is opened with a through hole. When in use, the entire roller shutter assembly 1 can be stably installed on the top or side wall of the inner end of the tunnel by passing bolts through the through hole. The bending structure itself can bear the weight of the roller shutter assembly 1, ensuring that the device will not tilt or fall off during long-term use, and providing a stable foundation for the operation of other components.

[0022] The core function of the limiting component 5 is to lock the rotation state of the take-up roller 102, prevent the fluorescent roller curtain 103 from moving unexpectedly, and ensure the safety of tunnel passage.

[0023] See appendix Figure 1-6 As shown, the inside of the roller shutter box 101 forms a closed installation space, which on the one hand provides a storage carrier for the winding roller shaft 102 and the fluorescent roller shutter curtain 103, avoiding damage to the components from tunnel dust and airflow when not in operation; on the other hand, it serves as a fixed base for the motor 105, and its own structure stably supports the power components, ensuring that the motor 105 has no displacement when it is running.

[0024] The take-up roller 102 is rotatably mounted in the through holes at both ends inside the roller shutter box 101. It is the "transmission core" for the take-up and take-up of the fluorescent roller shutter curtain 103. When the motor 105 outputs torque to drive it to rotate around its own axis, it can simultaneously release or retract the curtain and directly control the opening and closing of the blocking function.

[0025] One end of the fluorescent roller blind 103 is glued to the outside of the take-up roller 102. When unfolded, it can cover the tunnel lane laterally and is the direct execution component of the "flexible barrier". Circular through holes are opened on its surface at the positions corresponding to the fluorescent cloth strips 104. This not only reduces the weight of the blind itself to reduce the load on the take-up roller 102, but also allows air circulation to avoid the blind shaking caused by airflow impact in the tunnel. At the same time, the fluorescent properties of the blind can improve visibility in the dim environment of the tunnel and warn passing vehicles or people in advance.

[0026] Fluorescent strips 104 are fixed to the back of the fluorescent roller blind 103 by sewing and are evenly distributed along the length of the blind. On the one hand, they further enhance the luminous effect on the fluorescent roller blind 103, thus doubly improving the warning effect of the device in low-light environments. On the other hand, they can block the circular through-holes on the blind, preventing outsiders from directly observing the tunnel obstruction area through the through-holes, while not affecting the airflow through the through-holes, thus balancing shielding and ventilation.

[0027] The motor 105 is fixedly mounted in the circular frame at one end of the roller blind box 101, and its output end is fixedly connected to one end of the take-up roller shaft 102. It is the "power source" of the roller blind assembly 1. After being powered on, it drives the take-up roller shaft 102 to rotate by outputting a stable torque, providing continuous power for the winding and unwinding of the fluorescent roller blind curtain 103.

[0028] See appendix Figure 1-4 As shown, the traction rope 201 is sewn to the two lower corners of the fluorescent roller blind curtain 103. One end is connected to the curtain and the other end is connected to the counterweight block 202. It is a "traction transmission component" - the weight of the counterweight block 202 is used to pull the lower end of the curtain to ensure that the curtain hangs vertically without wrinkles when it is unfolded. During the rolling process, the traction rope 201 enters the roller blind box 101 along with the curtain and wraps around the two ends of the rolled-up curtain to play the role of "anti-scattering fixation" and prevent the curtain from loosening and affecting the accuracy of the next unfolding.

[0029] The counterweight block 202 is fixed to the lower end of the traction rope 201 by binding or welding. It uses its own weight to provide downward force for the traction rope 201, which helps the fluorescent roller blind 103 overcome its own tension and unfold quickly, while preventing the curtain from shifting due to airflow when unfolding. In addition, its metal material can be used with the electromagnet disk 3 to become the "adsorption target" for positioning the lower end of the curtain, ensuring the stability of the curtain position after unfolding.

[0030] See appendix Figure 1-4 As shown, the electric latch 501 is fixed to one end of the top surface of the roller shutter box 101 by welding. It has a telescopic function and is an "active locking component". When the device completes the curtain rewinding or unfolding, it is powered on so that its output end extends vertically and inserts into the limiting sleeve 502, directly restricting the rotational freedom of the rewinding roller shaft 102. When it is necessary to adjust the curtain state, the power is turned off so that the output end retracts and the lock is released, ensuring that the motor 105 can drive the roller shaft to rotate normally.

[0031] The limiting sleeve 502 is welded and fixed to the end of the take-up roller shaft 102 away from the motor 105. Its axis is collinear with the take-up roller shaft 102 and is adapted to the size of the output end of the electric latch 501. It is a "passive locking engagement part" - by engaging with the electric latch 501, it completely restricts the rotation of the take-up roller shaft 102, thereby preventing the fluorescent roller curtain 103 from unfolding or retracting due to non-operational factors such as vibration or accidental contact, thus avoiding safety risks.

[0032] The operating procedure of this utility model is as follows: During the initial preparation, the motor 105, electric plug 501, and electromagnet disc 3 are electrically connected to the control equipment inside the tunnel to ensure that each component can receive control signals. The entire roller shutter assembly 1 is fixedly installed at a preset position at the end of the tunnel by bolts passing through the through hole at the upper end of the bent bracket 4. The electromagnet disc 3 is then fixedly installed into the corresponding ground groove at the end of the tunnel using bolts, ensuring that it corresponds vertically with the traction assembly 2.

[0033] During the curtain unfolding operation, a command is sent through the tunnel control equipment to start the motor 105. The motor 105 outputs torque to drive the take-up roller shaft 102 to rotate around its own axis. During the rotation of the take-up roller shaft 102, the fluorescent roller curtain 103 originally rolled up on it is gradually released, and the fluorescent roller curtain 103 slowly hangs down from the roller curtain box 101. At the same time, the electromagnet disk 3 is energized to generate magnetism. When the counterweight block 202 at the lower end of the fluorescent roller curtain 103 descends to the corresponding position of the electromagnet disk 3, the electromagnet disk 3 firmly attracts the counterweight block 202, completing the unfolding and positioning of the fluorescent roller curtain 103, and the device enters the blocking state.

[0034] During the curtain rewinding operation, a rewinding command is sent via the tunnel control equipment. First, the electromagnet disc 3 is de-energized, its magnetism disappears, and the attracted counterweight block 202 is released. The motor 105 is then started and controlled to rotate in reverse. The motor 105 drives the rewind roller shaft 102 to rotate in the opposite direction, beginning the rewinding of the fluorescent roller curtain 103. The rewind roller shaft 102 continues to rotate, gradually retracting the fluorescent roller curtain 103 into the roller shutter box 101 until the traction rope 201 is also rewinded into the roller shutter box 101 along with the curtain, and wrapped around both ends of the rewound fluorescent roller curtain 103. Finally, the electric latch 501 is energized, causing its output end to extend vertically and insert into the limiting sleeve 502, locking the rotation state of the rewind roller shaft 102 and preventing the fluorescent roller curtain 103 from unintentionally unfurling, thus completing the entire rewinding operation.

[0035] Although embodiments of the present invention have been shown and described, those skilled in the art should understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible barrier device for tunnel safety management, characterized in that: The roller blind assembly (1) is used to achieve the flexible blocking function, and an electromagnet disc (3) is used to adsorb and position the lower end of the roller blind assembly (1). Both ends of the roller blind assembly (1) are provided with traction components (2) for pulling the roller blind assembly (1) to unfold. Both ends of the top surface of the roller blind assembly (1) are fixedly equipped with bending brackets (4) for installing the roller blind assembly (1). One end of the roller blind assembly (1) is fixedly equipped with a limiting component (5) for locking the rotation state of the roller blind assembly (1). The electromagnet disc (3) is arranged vertically and vertically corresponding to the traction component (2), and the electromagnet disc (3) is located directly below the traction component (2).

2. The flexible barrier device for tunnel safety management according to claim 1, characterized in that: The roller blind assembly (1) includes a roller blind box (101) forming an installation space inside, a take-up roller shaft (102) rotatably installed in the through holes at both ends inside the roller blind box (101), a fluorescent roller blind curtain (103) with one end fixed to the outside of the take-up roller shaft (102) by adhesive bonding and which can be rolled up on the take-up roller shaft (102), a fluorescent fabric strip (104) fixed to the back of the fluorescent roller blind curtain (103) by sewing process and evenly distributed along the length of the fluorescent roller blind curtain (103), and a motor (105) fixedly assembled in a circular frame at one end of the roller blind box (101) for driving the take-up roller shaft (102) to rotate.

3. The flexible barrier device for tunnel safety management according to claim 2, characterized in that: The lower ends of the two bending brackets (4) are fixedly connected to the two ends of the top surface of the roller shutter box (101) by welding. The surface of the fluorescent roller shutter curtain (103) is provided with a row of circular through holes for weight reduction and ventilation corresponding to the position of each fluorescent strip (104). The output end of the motor (105) is fixedly connected to one end of the winding roller shaft (102). After the motor (105) is powered on, it can drive the winding roller shaft (102) to rotate around its own axis, thereby realizing the winding or unwinding operation of the fluorescent roller shutter curtain (103).

4. The flexible barrier device for tunnel safety control according to claim 3, characterized in that: The traction assembly (2) includes traction ropes (201) that are fixed to the two lower corners of the fluorescent roller blind (103) by sewing process, and counterweight iron blocks (202) that are fixed to the lower end of the traction ropes (201) by binding or welding and are used to increase the weight of the traction ropes (201) to assist the unfolding of the fluorescent roller blind (103).

5. A flexible barrier device for tunnel safety management according to claim 4, characterized in that: The limiting component (5) includes an electric pin (501) that is fixed to one end of the top surface of the roller shutter box (101) by welding and has a telescopic function, and a limiting sleeve (502) that is fixed to one end of the take-up roller shaft (102) away from the motor (105) by welding and is used to cooperate with the electric pin (501); the axis of the limiting sleeve (502) is collinear with the axis of the take-up roller shaft (102), and the limiting sleeve (502) is adapted to the output end of the electric pin (501).

6. A flexible barrier device for tunnel safety management according to claim 5, characterized in that: When the electric latch (501) is powered on, its output end can be vertically inserted into the interior of the limiting sleeve (502). By restricting the rotational freedom of the winding roller shaft (102), the locking effect on the roller blind assembly (1) is achieved, preventing the fluorescent roller blind curtain (103) from being opened or closed unexpectedly.

Images