Hand hole well anti-collision device for tunnel portal

Abstract

The utility model discloses a hand hole well anti-collision device for a tunnel portal. The hand hole well anti-collision device comprises an installation assembly, an intelligent induction linkage system, a control system and a hand hole well. The installation assembly comprises a plurality of box bodies, plugs are arranged at the upper ends of the box bodies, slots are formed in the lower ends of the box bodies, and the plugs are inserted into the slots to connect the box bodies in an inserted mode. An intelligent induction linkage system is installed in the installation assembly and electrically connected with the control system. The intelligent induction linkage system comprises a sound control early warning module, a tunnel portal lane closing indicator light module, an indicator light early warning module, a vehicle impact energy evaluation module, a fire fighting automatic dialing alarm rescue module and a new energy photovoltaic power generation energy storage module. It can be guaranteed that the guardrail has enough anti-collision performance, the installation procedure is simple, an internal cable is protected after collision, early warning is given out in time, and the driving safety of a road is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of tunnel manholes, specifically relating to an anti-collision device for a manhole at a tunnel entrance. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Guardrails are an important measure to ensure traffic safety. Relevant regulations and standards have put forward specific requirements for the installation of guardrails on roads: The "Design Specifications for Highway Traffic Safety Facilities" JTG / T D8-2017 requires that at the junction of highways and tunnels, the concrete guardrails on the road should extend into the tunnel according to the prescribed outward extension rate, and a transition wing wall matching the cross-section of the maintenance road should be set at the tunnel entrance. The concrete guardrails at the tunnel exit can be treated by extending to the tunnel entrance in a normal linear shape.

[0004] Currently, most industry practices extend concrete crash barriers along the road to the tunnel entrance markers, directly connecting with the tunnel maintenance walkways to ensure traffic safety. However, manholes, already installed above the road surface according to regulations outside the tunnel entrance markers, conflict and are incompatible with the road barriers. The junction involves coordination among multiple disciplines, including roadworks, traffic safety, tunnel engineering, civil engineering, and electromechanical systems, making the process complex and difficult to guarantee the proper crashworthiness of the barriers. Furthermore, while some manholes have barriers, their crashworthiness is insufficient, failing to protect internal cables after an impact and failing to provide timely warnings, thus affecting road safety. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a handhole anti-collision device for tunnel entrances, which ensures that the guardrail has sufficient anti-collision performance, has a simple installation process, protects the internal cables after an impact, and issues a timely warning to ensure road traffic safety.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A collision avoidance device for a manhole at a tunnel entrance includes an installation assembly, an intelligent sensing and linkage system, a control system, and a manhole.

[0008] The mounting assembly includes several housings, each housing having a plug at its upper end and a slot at its lower end. The plug is inserted into the slot to connect the housings. An intelligent sensing and linkage system is installed inside the mounting assembly and is electrically connected to the control system.

[0009] The intelligent sensing and linkage system includes a voice-controlled early warning module, a tunnel entrance lane closure indicator light module, an indicator light early warning module, a vehicle impact energy assessment module, a fire and fire automatic dialing alarm and rescue module, and a new energy photovoltaic power generation and energy storage module.

[0010] Furthermore, a first fixing bolt is provided at the lower part of the mounting assembly, which connects the handhole well to the mounting assembly.

[0011] Furthermore, a second fixing bolt is provided on the side of the mounting assembly, which connects the mounting assembly to the conventional guardrail.

[0012] Furthermore, the mounting assembly is also provided with a pre-embedded flexible conduit, which has an outer layer, a middle layer and an inner layer.

[0013] Furthermore, the outer layer of the pre-embedded flexible conduit is made of insulating, high-strength, flexible, heat-insulating, and temperature-regulating material; the middle layer is made of high-compression-performance energy-absorbing and buffering material; and the inner layer is made of insulating, high-strength, flexible material.

[0014] Furthermore, the new energy photovoltaic power generation and energy storage module uses solar panels, which are electrically connected to the control system, which uses a PLC control system.

[0015] Furthermore, a first threaded steel pipe is provided at the rear of the manhole, and the first threaded steel pipe penetrates the inner wall of the manhole.

[0016] Furthermore, a second threaded steel pipe is provided on the side of the manhole, and the second threaded steel pipe penetrates the inner wall of the manhole.

[0017] Furthermore, a well cover is provided at the top of the manhole, and a water collection pit is provided at the bottom of the manhole.

[0018] Furthermore, a number of reinforcing ribs are spaced apart on the inner wall surface of the handhole well, and the reinforcing ribs are fixedly connected to the inner wall surface of the handhole well.

[0019] Compared with the prior art, the advantages and positive effects of this utility model are:

[0020] 1. This utility model includes an installation assembly, which is composed of several interlocking boxes for easy disassembly and installation. The manhole is made of high-strength precast concrete, and reinforcing ribs are provided on the inner wall of the manhole to improve various indicators of the tunnel manhole sidewall. An intelligent sensing and linkage system is installed in the installation assembly to monitor and warn of collisions. After a collision, an alarm is promptly triggered to remind passing vehicles, ensuring road safety.

[0021] 2. This utility model features a pre-embedded flexible conduit, which comprises an outer layer, a middle layer, and an inner layer. The outer layer of the pre-embedded flexible conduit is made of an insulating, high-strength, flexible, heat-insulating, and temperature-regulating material; the middle layer is made of a high-compression-performance energy-absorbing and buffering material; and the inner layer is made of an insulating, high-strength, flexible material. When the manhole anti-collision system is subjected to a general impact, the flexible conduit and the internal cable can deform together in a coordinated manner, share the impact load, and protect the internal cable. Attached Figure Description

[0022] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is the front view of the anti-collision device for handhole wells of this utility model;

[0024] Figure 2 This is a side view of the anti-collision device for handhole wells according to this utility model;

[0025] Figure 3 This is a schematic diagram of the installation position of the handhole well anti-collision device of this utility model;

[0026] Figure 4 This is a structural diagram of the handhole well of this utility model;

[0027] Figure 5 This is a schematic diagram of the installation position of the handhole well of this utility model;

[0028] Figure 6 This is a structural schematic diagram of the box body of this utility model;

[0029] In the diagram: 1. Mounting assembly; 2. First fixing bolt; 3. Second fixing bolt; 4. Embedded flexible conduit; 5. Sound-activated early warning module; 6. Tunnel entrance lane closure indicator light module; 7. Indicator light warning module; 8. Vehicle impact energy assessment module; 9. Fire and fire automatic dialing alarm and rescue module; 10. New energy photovoltaic power generation and energy storage module; 11. Manhole; 12. Conventional guardrail; 13. Cable trench; 14. First conduit; 15. Second conduit; 16. Sump; 17. Lining; 18. Tunnel entrance station number; 19. Manhole cover; 20. Box; 21. Plug; 22. Slot. Detailed Implementation

[0030] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0031] The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses an anti-collision device for a handhole at a tunnel entrance, such as... Figure 1 and Figure 2 As shown, it includes an installation assembly 1, an intelligent sensing and linkage system, a control system, and a manhole 11;

[0032] The mounting assembly 1 is installed on the upper part of the manhole 11 to prevent passing vehicles from colliding with it. An intelligent sensing and linkage system is installed on the mounting assembly 1 to monitor and warn of potential collisions. In the event of a collision, the system will promptly alert passing vehicles to ensure road safety. The various modules of the intelligent sensing and linkage system are controlled by a control system.

[0033] The mounting assembly 1 includes several housings 20. Each housing 20 has a plug 21 at the top and a slot 22 at the bottom. The plug 21 is inserted into the slot 22 to connect the several housings 20. An intelligent sensing and linkage system is installed inside the mounting assembly 1 and is electrically connected to the control system.

[0034] The voice-activated early warning module 5 mainly consists of a sound sensor and an alarm output device. The sound wave signal is converted into an electrical signal by the sound sensor, amplified, and processed using a dynamic threshold algorithm. After collecting a sound wave signal that exceeds the threshold, the alarm output device alerts relevant personnel.

[0035] Tunnel entrance lane closure indicator module 6: mainly composed of light-emitting elements, current control and drive circuits. After an accident occurs in a lane, the light-emitting elements indicate to vehicles about to enter the tunnel that the lane has been closed.

[0036] Indicator warning module 7: mainly composed of a vibration sensor, a buzzer and an LED light. After the sensor detects a vibration signal, it is processed by a signal comparator and transmitted to the microcontroller. The microcontroller then determines whether to alarm according to the preset logic. When the alarm logic is met, the buzzer will sound an alarm and the LED light will light up, realizing an audible and visual warning.

[0037] The vehicle impact energy assessment module 8 mainly consists of a measuring device and a data analysis device. After a collision, the force sensor in the measuring device records the impact force-time curve, and the accelerometer measures the acceleration change at the instant of impact. After the data is collected, it is processed in real time by a high-speed data acquisition card and software to calculate the vehicle impact energy.

[0038] The automatic dialing alarm and rescue module 9 for fire fighting mainly consists of a triggering device, a fire alarm device, and a linkage output device. When a fire occurs, the fire detector in the fire alarm device will convert physical quantities of fire characteristics such as temperature and smoke into electrical signals to dial the alarm, and at the same time activate the fire-fighting facilities in the tunnel for rescue.

[0039] The new energy photovoltaic power generation and energy storage module 10 is a photovoltaic panel. This module converts solar energy into electrical energy through the photovoltaic panel and stores this electrical energy using energy storage devices (such as battery packs) so that it can supply power when needed. When there is sufficient sunlight, excess electrical energy is stored in the battery, thereby ensuring the stability and continuity of power supply.

[0040] The installation assembly 1 is composed of several boxes 20 that are plugged together, which facilitates disassembly and installation. The manhole 11 is made of high-strength concrete precast and reinforced with ribs on the inner wall of the manhole 11 to improve the various indicators of the side wall of the tunnel manhole 11.

[0041] The materials and fixing methods of the tunnel manhole 11 sidewall were specifically improved to enable the conventional ordinary concrete sidewall to function as a crash barrier. High-strength concrete and reinforced steel bars were used to enhance the technical performance indicators of the tunnel manhole 11 sidewall. The overall compressive strength, tensile strength, flexural strength, shear strength, durability, and crashworthiness of the barrier are no less than the requirements of the standards for road crash barriers. The compressive strength of the crash barrier concrete should be no less than C30, the tensile strength should be no less than 2.5MPa, and it should also meet the design requirements for flexural and shear strength.

[0042] The traditional cast-in-place manhole wall has been improved by replacing it with a precast high-strength concrete wall that is easy to assemble and disassemble, and also functions as a guardrail. Installation holes are provided on both sides and the bottom of the wall for easy installation. The bottom of the wall connects to the ground, and the wall is reinforced internally. It is ready to function immediately upon on-site installation. The wall can be removed for manual cable routing, and then reinstalled afterward.

[0043] The intelligent sensing and linkage system includes a voice-controlled early warning module 5, a tunnel entrance lane closure indicator light module 6, an indicator light early warning module 7, a vehicle impact energy assessment module 8, a fire and fire automatic dialing alarm and rescue module 9, and a new energy photovoltaic power generation and energy storage module 10.

[0044] When a vehicle deviates from the normal lane and gets too close to the anti-collision system on the side wall of the manhole 11, the intelligent sensing linkage device will be triggered, and the voice control device will immediately sound an alarm to remind the driver to brake in time and take remedial measures.

[0045] When a vehicle deviates from the normal lane and gets too close to the anti-collision system on the side wall of the manhole 11, the intelligent sensing linkage device will be triggered, and the warning light device installed on the upper part of the guardrail will immediately light up and flash, reminding the driver to brake in time and take remedial measures.

[0046] When a vehicle collides with the manhole 11 side wall anti-collision system in a sudden accident, the intelligent sensing linkage device will be triggered, and the system will automatically dial the traffic police and road emergency rescue numbers. At the same time, the vehicle impact energy assessment module 8 will be activated immediately, intelligently determining whether there is a possibility of injury or death to the occupants of the vehicle based on the impact energy range, and automatically dialing 120 for rescue and promptly broadcasting the location of the accident.

[0047] When a vehicle collides with the anti-collision system on the side wall of manhole 11, the intelligent sensing linkage device will be triggered. The lane closure indicator module 6 at the tunnel entrance will respond, and the other side of the tunnel entrance will display "Accident ahead, no passage." The system will also link with the tunnel's internal voice prompt module to alert drivers inside the tunnel. Simultaneously, it will link with the fire and rescue module to activate the tunnel's fire protection system, sending signals to notify fire robots, fire extinguishing systems, and fire and rescue teams to immediately commence rescue operations.

[0048] like Figure 3 As shown, a first fixing bolt 2 is provided at the lower part of the mounting assembly 1, which connects the manhole 11 to the mounting assembly 1. A second fixing bolt 3 is provided on the side of the mounting assembly 1, which connects the mounting assembly 1 to the conventional guardrail 12. The manhole 11, the conventional guardrail 12, and the mounting assembly 1 are connected as a whole by the first fixing bolt 2 and the second fixing bolt 3, thereby providing protection.

[0049] The mounting assembly 1 is also equipped with a pre-embedded flexible conduit 4, which has an outer layer, a middle layer, and an inner layer. The outer layer of the pre-embedded flexible conduit 4 is made of insulating, high-strength, flexible, heat-insulating, and temperature-regulating material; the middle layer is made of high-compression-performance energy-absorbing and buffering material; and the inner layer is made of insulating, high-strength, flexible material.

[0050] Specifically, the outer layer of high-strength flexible thermal insulation and temperature-regulating material is made of aerogel felt, the middle layer of high-compression energy-absorbing buffer material is made of polyethylene foam, and the inner edge of high-strength flexible material is made of aramid fiber reinforced rubber.

[0051] Typically, after a traffic accident, the sidewall of manhole 11 is damaged by an overload impact, causing the concrete to squeeze and shear the cables inside the manhole 11, leading to circuit failure and fire. Using flexible conduit with buffering function can prevent cable damage after impact. The flexible conduit and the internal cables can deform together in coordination when the manhole 11 sidewall anti-collision system is subjected to a normal impact, sharing the impact load and protecting the internal cables.

[0052] like Figure 2 As shown, the new energy photovoltaic power generation and energy storage module 10 uses a solar panel, which is electrically connected to the control system. The control system is a PLC control system.

[0053] A new energy photovoltaic power generation system is integrated into the sun-facing surface of the guardrail sidewall anti-collision system of manhole 11. It makes full use of the space on the sun-facing surface of the guardrail, generates and stores energy during the day, and discharges and supplies energy at night. The self-generated power can supply multiple modules such as the voice control warning module 5, indicator warning module 7, vehicle impact energy assessment module 8, tunnel entrance lane closure indicator module 6, tunnel internal voice prompt module, and fire and fire automatic dialing alarm rescue module 9, so as to realize the power self-sufficiency and full utilization of solar energy of the intelligent anti-collision system.

[0054] like Figure 4 As shown, a first cable-passing steel pipe 14 is installed at the rear of the manhole 11, penetrating the inner wall of the manhole 11. A second cable-passing steel pipe 15 is installed on the side of the manhole 11, also penetrating the inner wall of the manhole 11. Cables are threaded through these steel pipes. A manhole cover 19 is installed at the top of the manhole 11, and a sump 16 is installed at the bottom. The sump 16 collects water accumulated in the manhole, preventing excessive water accumulation from affecting cable operation. Several reinforcing ribs are spaced apart on the inner wall of the manhole 11, and these ribs are fixedly connected to the inner wall of the manhole 11. The reinforcing ribs improve the strength of the manhole 11.

[0055] like Figure 5 As shown, tunnel entrance staking number 18 is a numbering method used to identify the specific location of the tunnel on the road line. The manhole 11 of this utility model is located in front of the tunnel entrance staking point, that is, at the entrance of the tunnel. Lining 17 is also provided on the side of the cable trench 13. In addition to providing physical support, lining 17 also protects vehicles and various facilities in the tunnel from damage caused by the external environment (such as falling rocks, groundwater erosion, etc.).

[0056] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A collision prevention device for handholes at tunnel entrances, characterized in that, This includes the installation assembly, intelligent sensing and linkage system, control system, and manhole. The mounting assembly includes several housings, each housing having a plug at its upper end and a slot at its lower end. The plug is inserted into the slot to connect the housings. An intelligent sensing and linkage system is installed inside the mounting assembly and is electrically connected to the control system. The intelligent sensing and linkage system includes a voice-controlled early warning module, a tunnel entrance lane closure indicator light module, an indicator light early warning module, a vehicle impact energy assessment module, a fire and fire automatic dialing alarm and rescue module, and a new energy photovoltaic power generation and energy storage module.

2. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, The lower part of the mounting assembly is provided with a first fixing bolt, which connects the manhole to the mounting assembly.

3. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, A second fixing bolt is provided on the side of the mounting assembly, which connects the mounting assembly to the guardrail.

4. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, The mounting assembly is also provided with a pre-embedded flexible conduit, which has an outer layer, a middle layer and an inner layer.

5. The anti-collision device for handholes at tunnel entrances as described in claim 4, characterized in that, The outer layer of the pre-embedded flexible conduit is made of insulating, high-strength, flexible, heat-insulating, and temperature-regulating material; the middle layer is made of high-compression energy-absorbing and buffering material; and the inner layer is made of insulating, high-strength, flexible material.

6. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, The new energy photovoltaic power generation and energy storage module uses solar panels, which are electrically connected to the control system, which uses a PLC control system.

7. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, A first threaded steel pipe is installed at the rear of the manhole, and the first threaded steel pipe penetrates the inner wall of the manhole.

8. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, A second threaded steel pipe is installed on the side of the manhole, and the second threaded steel pipe penetrates the inner wall of the manhole.

9. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, The upper part of the manhole is equipped with a manhole cover, and the lower part of the manhole is equipped with a water collection pit.

10. The anti-collision device for handholes at tunnel entrances as described in claim 1, characterized in that, Several reinforcing ribs are spaced apart on the inner wall surface of the handhole well, and the reinforcing ribs are fixedly connected to the inner wall surface of the handhole well.

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