An emergency communication device for tunnels
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI SHENGTONG TELECOMM EQUIP CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
Existing tunnel emergency communication equipment is prone to loosening of line interfaces due to long-term use in tunnels and exposure to vibrations, leading to equipment failure and inability to communicate in a timely manner.
An emergency communication device was designed. By installing a limiting ring and a buckle structure on the connecting line, and using a spring to provide elastic force to make the slider slide, the connection is kept stable. At the same time, a positioning groove and a positioning ring are set on the camera base to realize multi-directional observation. It is also equipped with a loudspeaker and an alarm to ensure smooth communication and command.
It effectively prevented the connection lines from loosening, ensured the stable operation of communication equipment, enabled real-time monitoring and rapid command within the tunnel, and improved emergency response capabilities in case of emergencies.
Smart Images

Figure CN224288772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of communication equipment technology, and more specifically, to an emergency communication device for use in tunnels. Background Technology
[0002] Emergency communication equipment in tunnels is an important facility for ensuring the safety of personnel inside tunnels. It is mainly used to realize emergency alarms, communication and command in the event of a sudden accident. However, the existing emergency communication equipment is located inside the tunnel for a long time, and the vibration generated by the operation and passing vehicles may cause the connection interface to loosen over time, which may easily cause the communication equipment to malfunction, thus failing to guarantee the first-time communication inside the tunnel. Utility Model Content
[0003] In order to overcome the shortcomings of the existing technology, this utility model provides an emergency communication device for tunnels, which has the advantage of ensuring line connectivity.
[0004] To achieve the above objectives, this utility model provides the following technical solution: an emergency communication device for tunnels, comprising a communication device, an internal loudspeaker, a button on the front of the communication device for controlling the loudspeaker, a connector fixedly mounted on the bottom of the communication device, an internal connecting wire electrically connected to the connector, a limiting ring fixedly mounted on one end of the connecting wire near the connector, a fixing plate fixedly mounted on the bottom of the communication device, a sliding groove inside the fixing plate, a slider slidably connected inside the sliding groove, a buckle fixedly mounted on the side of the slider away from the fixing plate, and the buckle engaging with the limiting ring.
[0005] As a preferred embodiment of this utility model, a positioning plate is fixedly installed at the bottom of the fixing plate, a telescopic rod is fixedly installed above the positioning plate, a spring is sleeved on the outside of the telescopic rod, and the spring is fixedly connected to the positioning plate and the slider respectively.
[0006] As a preferred embodiment of this utility model, the bottom of the communication device is provided with a connecting plate, and the connecting plate is internally engaged with bolts. The bolts engage with the communication device, and the connecting plate and the fixing plate are fixedly connected.
[0007] As a preferred embodiment of this utility model, a fixed shaft is fixedly installed on the top of the communication device, a limiting ring is fixedly installed on the outer side of the fixed shaft, a base is sleeved on the top of the fixed shaft, a positioning groove is opened inside the base, a positioning ring is rotatably connected inside the positioning groove, and a camera is fixedly installed on the top of the base.
[0008] As a preferred embodiment of this utility model, a driven gear is fixedly installed on the base, a bracket is fixedly installed above the communication device, a motor is fixedly installed inside the bracket, a driving gear is fixedly installed at the output end of the motor, the driving gear meshes with the driven gear, and an alarm is fixedly installed above the communication device.
[0009] As a preferred embodiment of this utility model, there are two interfaces and two connecting lines, both of which are located at the bottom of the communication device, and there are two latches, both of which are located on the outside of the connecting lines.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] 1. This utility model features a connector fixedly installed at the bottom of a communication device. A connecting wire is electrically connected inside the connector. A limiting ring is fixedly installed at the end of the connecting wire near the connector. A fixing plate is also fixedly installed at the bottom of the communication device. A sliding groove is formed inside the fixing plate, and a slider is slidably connected inside the groove. A buckle is fixedly installed on the side of the slider away from the fixing plate. When the connecting wire is connected to the connector, the communication device can communicate normally. During the connection process, loosening may occur. Because the buckle engages with the bottom of the limiting ring, the spring provides elasticity, and the slider is pushed by the telescopic rod towards the communication device. Since the buckle and slider are fixedly connected, the sliding action between the slider and the groove keeps the limiting ring constantly pushed to fit against the connector, preventing loosening of the connector and connecting wire.
[0012] 2. This utility model features a limiting ring fixedly installed on the outside of a fixed shaft, a base sleeved on the top of the fixed shaft, a positioning groove inside the base, and a positioning ring rotatably connected inside the positioning groove. A camera is fixedly installed above the base, allowing for real-time monitoring of the tunnel's interior. In case of emergencies, the camera can provide real-time observation of the tunnel's interior, facilitating proper command of personnel inside. Because the base can be rotatably connected to the positioning ring via the positioning groove, and the positioning ring limits the base's position, the camera can easily observe the interior from multiple angles, ensuring comprehensive observation and enabling commanders to make quick and accurate judgments. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the loudspeaker structure of this utility model;
[0015] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;
[0016] Figure 4 This is a schematic diagram of the camera structure of this utility model;
[0017] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point B.
[0018] In the diagram: 1. Communication equipment; 2. Megaphone; 3. Button; 4. Interface; 5. Connecting cable; 6. Limiting ring one; 7. Fixing plate; 8. Slide groove; 9. Slider; 10. Buckle; 11. Positioning plate; 12. Telescopic rod; 13. Spring; 14. Connecting plate; 15. Bolt; 16. Fixing shaft; 17. Limiting ring two; 18. Base; 19. Positioning groove; 20. Positioning ring; 21. Camera; 22. Driven gear; 23. Bracket; 24. Motor; 25. Drive gear; 26. Alarm. Detailed Implementation
[0019] 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.
[0020] like Figures 1 to 5 As shown, this utility model provides an emergency communication device for tunnels, including a communication device 1. The communication device 1 has a loudspeaker 2 inside, and a button 3 is provided at the front of the communication device 1. The button 3 controls the loudspeaker 2. A connector 4 is fixedly installed at the bottom of the communication device 1. A connecting wire 5 is electrically connected inside the connector 4. A limit ring 6 is fixedly installed at one end of the connecting wire 5 near the connector 4. A fixing plate 7 is fixedly installed at the bottom of the communication device 1. A sliding groove 8 is opened inside the fixing plate 7. A slider 9 is slidably connected inside the sliding groove 8. A buckle 10 is fixedly installed on the side of the slider 9 away from the fixing plate 7. The buckle 10 is engaged with the limit ring 6.
[0021] When the communication device 1 is connected to the interface 4 via the connecting cable 5, it can communicate normally. However, during the connection process between the interface 4 and the connecting cable 5, there may be a loosening. At this time, since the buckle 10 is engaged with the bottom of the limiting ring 6, the spring 13 provides elastic force, and the slider 9 is pushed by the telescopic rod 12 to slide towards the communication device 1. At the same time, since the buckle 10 and the slider 9 are fixedly connected, the limiting ring 6 is always pushed to fit the interface 4 through the sliding action of the slider 9 and the slide groove 8, so that the interface 4 and the connecting cable 5 will not become loose.
[0022] The bottom of the fixed plate 7 is fixedly installed with a positioning plate 11, and a telescopic rod 12 is fixedly installed above the positioning plate 11. A spring 13 is sleeved on the outside of the telescopic rod 12, and the spring 13 is fixedly connected to the positioning plate 11 and the slider 9 respectively.
[0023] Spring 13 causes slider 9 to slide inside groove 8 through elastic force, which facilitates buckle 10 to be pushed towards limit ring 6, so as to keep buckle 10 and limit ring 6 in contact.
[0024] The bottom of the communication device 1 is provided with a connecting plate 14, and a bolt 15 is engaged inside the connecting plate 14. The bolt 15 engages with the communication device 1, and the connecting plate 14 is fixedly connected to the fixing plate 7.
[0025] Bolt 15 engages with connecting plate 14 and communication device 1 respectively, so that connecting plate 14 is fixedly installed at the bottom of communication device 1. At the same time, since connecting plate 14 and fixing plate 7 are fixedly connected, fixing plate 7 is fixed at the bottom of communication device 1, thereby maintaining the stability of fixing plate 7.
[0026] Among them, a fixed shaft 16 is fixedly installed on the top of the communication device 1, a limit ring 27 is fixedly installed on the outside of the fixed shaft 16, a base 18 is sleeved on the top of the fixed shaft 16, a positioning groove 19 is opened inside the base 18, a positioning ring 20 is rotatably connected inside the positioning groove 19, and a camera 21 is fixedly installed on the top of the base 18.
[0027] The main function of camera 21 is to monitor the interior of the tunnel in real time. In case of an emergency, camera 21 can be used to observe the interior of the tunnel in real time, which facilitates the correct command of the personnel inside. Since the base 18 can be rotated and connected to the positioning ring 20 through the positioning groove 19, and the positioning ring 20 limits the base 18, camera 21 can easily observe the internal situation from multiple angles, achieving comprehensive observation and ensuring that the command can make a quick and correct judgment.
[0028] Among them, a driven gear 22 is fixedly installed on the base 18, a bracket 23 is fixedly installed on the top of the communication device 1, a motor 24 is fixedly installed inside the bracket 23, a driving gear 25 is fixedly installed on the output end of the motor 24, the driving gear 25 meshes with the driven gear 22, and an alarm 26 is fixedly installed on the top of the communication device 1.
[0029] When it is necessary to observe the interior of the tunnel from multiple angles, the motor 24 is first started to make the drive gear 25 rotate and mesh with the driven gear 22. Since the driven gear 22 is fixedly connected to the base 18, the base 18 can drive the camera 21 to rotate, thus achieving the effect of multi-angle observation.
[0030] There are two interfaces 4 and two connecting lines 5. Both interfaces 4 and both connecting lines 5 are located at the bottom of the communication device 1. There are two clips 10. Both clips 10 are located on the outside of the connecting lines 5.
[0031] Both buckles 10 are open, making it easy to insert the connecting wire 5 into the buckle 10, and at the same time, it is easy to squeeze the bottom of the limiting ring 6 to limit the position of the limiting ring 6.
[0032] Working principle and usage process of this utility model:
[0033] First, a docking interface 4 is fixedly installed at the bottom of the communication device 1. A connecting wire 5 is electrically connected inside the docking interface 4. A limit ring 6 is fixedly installed at the end of the connecting wire 5 near the docking interface 4. A fixing plate 7 is fixedly installed at the bottom of the communication device 1. A sliding groove 8 is opened inside the fixing plate 7. A slider 9 is slidably connected inside the sliding groove 8. At the same time, a buckle 10 is fixedly installed on the side of the slider 9 away from the fixing plate 7. When the connecting wire 5 is connected to the docking interface 4, the communication device 1 can communicate normally. During the connection between the docking interface 4 and the connecting wire 5, loosening may occur. At this time, because the buckle 10 is engaged at the bottom of the limit ring 6, the spring 13 provides elastic force, and the slider 9 is pushed by the telescopic rod 12 to slide towards the communication device 1. At the same time, because the buckle 10 and the slider 9 are fixedly connected, the sliding action of the slider 9 and the sliding groove 8 keeps the limit ring 6 always pushed to fit the docking interface 4, so that the docking interface 4 and the connecting wire 5 will not loosen.
[0034] Secondly, a limiting ring 17 is fixedly installed on the outside of the fixed shaft 16, and a base 18 is sleeved on the top of the fixed shaft 16. A positioning groove 19 is opened inside the base 18, and a positioning ring 20 is rotatably connected inside the positioning groove 19. At the same time, a camera 21 is fixedly installed on the top of the base 18. The camera 21 can monitor the inside of the tunnel in real time. When an emergency occurs, the camera 21 can observe the inside of the tunnel in real time, which is convenient for giving correct instructions to the personnel inside. Since the base 18 can be rotatably connected to the positioning ring 20 through the positioning groove 19, and the positioning ring 20 limits the base 18, the camera 21 can observe the internal situation from multiple angles, ensuring that the commander can make a quick and correct judgment.
[0035] Finally, in case of an emergency, pressing button 3 allows for quick communication with the outside world and triggers an alarm on the inside via alarm 26, enabling rapid evacuation of personnel. Simultaneously, the loudspeaker 2 allows for real-time communication with the outside world, facilitating a quick understanding of the situation inside and enabling rescue preparations.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An emergency communication device for tunnels, comprising a communication device (1), characterized in that: The communication device (1) is equipped with a loudspeaker (2) inside. The communication device (1) is equipped with a button (3) at the front. The button (3) controls the loudspeaker (2). The bottom of the communication device (1) is fixedly installed with a connector (4). The connector (4) is electrically connected with a connecting wire (5). A limit ring (6) is fixedly installed at one end of the connecting wire (5) near the connector (4). The bottom of the communication device (1) is fixedly installed with a fixing plate (7). The fixing plate (7) is provided with a sliding groove (8). A slider (9) is slidably connected inside the sliding groove (8). A buckle (10) is fixedly installed on the side of the slider (9) away from the fixing plate (7). The buckle (10) is engaged with the limit ring (6).
2. The emergency communication device for tunnels according to claim 1, characterized in that: A positioning plate (11) is fixedly installed at the bottom of the fixed plate (7), and a telescopic rod (12) is fixedly installed above the positioning plate (11). A spring (13) is sleeved on the outside of the telescopic rod (12), and the spring (13) is fixedly connected to the positioning plate (11) and the slider (9) respectively.
3. An emergency communication device for tunnels according to claim 1, characterized in that: The bottom of the communication device (1) is provided with a connecting plate (14), and a bolt (15) is engaged inside the connecting plate (14). The bolt (15) engages with the communication device (1), and the connecting plate (14) is fixedly connected to the fixing plate (7).
4. An emergency communication device for tunnels according to claim 1, characterized in that: A fixed shaft (16) is fixedly installed on the top of the communication device (1). A limit ring (17) is fixedly installed on the outside of the fixed shaft (16). A base (18) is sleeved on the top of the fixed shaft (16). A positioning groove (19) is opened inside the base (18). A positioning ring (20) is rotatably connected inside the positioning groove (19). A camera (21) is fixedly installed on the top of the base (18).
5. An emergency communication device for tunnels according to claim 4, characterized in that: A driven gear (22) is fixedly installed on the base (18). A bracket (23) is fixedly installed above the communication device (1). A motor (24) is fixedly installed inside the bracket (23). A driving gear (25) is fixedly installed at the output end of the motor (24). The driving gear (25) meshes with the driven gear (22). An alarm (26) is fixedly installed above the communication device (1).
6. An emergency communication device for tunnels according to claim 1, characterized in that: There are two interfaces (4) and two connecting lines (5). Both interfaces (4) are located at the bottom of the communication device (1). There are two buckles (10). Both buckles (10) are located outside the connecting line (5).