A pressurized support cabin for tunnel on-site command

Abstract

The present invention discloses a pressurized support cabin for on-site command in a tunnel, relates to the technical field of support cabins, and solves the technical problems in the prior art of being inconvenient to move and walking and lacking a safety structure for balancing the pressure inside and outside the support cabin door. The cabin comprises a main frame, a lifting and walking device is fixedly installed on the outside of the main frame, a multi-layer cabin structure is fixedly installed on the upper wall of the main frame, a peep window is fixedly installed on the front wall of the multi-layer cabin structure, and a pressure-maintaining porch structure is fixedly installed on the side wall of the multi-layer cabin structure. The present invention is equipped with a lifting and walking device, which can achieve flexible movement in complex tunnel terrain; the pressure in the porch pipe and the cabin is adjusted by a constant pressure machine to prevent internal pressure leakage or intrusion of external high-pressure gas, thereby ensuring long-term stability of the air pressure environment in the cabin; the multi-layer cabin structure enhances the pressure resistance of the cabin, can withstand external high-pressure or low-pressure environments, and can also prevent accidents such as tunnel collapse from causing physical damage to the structure.

Description

Technical Field

[0001] The invention relates to the technical field of support cabins, and in particular to a pressurized support cabin for on-site tunnel command. Background Art

[0002] Tunnel construction and rescue sites often face complex and changing environmental conditions, such as high temperatures, high pressures, low oxygen levels, and the presence of toxic and hazardous gases. These harsh environments not only pose a serious threat to the health and safety of frontline workers, but also present significant challenges to on-site command and dispatch, as well as emergency rescue efforts.

[0003] Currently, command operations within tunnels primarily rely on conventional command vehicles or makeshift command posts. These traditional command facilities present numerous deficiencies in the unique environments of tunnels. First, they lack effective air pressure regulation and are unable to maintain pressure balance inside and outside the cabin in high or low pressure environments. Fluctuations in air pressure within the tunnel can easily lead to unstable pressure inside the command cabin, impacting the normal operation of equipment and the health of personnel. Second, existing facilities lack effective thermal insulation. In high or low temperature environments, it is difficult to maintain a suitable cabin temperature, impacting the efficiency and comfort of command personnel. Third, in the face of emergencies such as tunnel collapses, traditional command facilities lack structural strength and pressure resistance, making them unable to withstand external physical damage and ensuring the continuity of command work. Furthermore, existing command facilities have limited mobility, making it difficult to adjust their position to accommodate the complex and changing terrain and operational requirements within the tunnel. Furthermore, they lack comprehensive toxic gas filtration and disinfection capabilities, failing to provide a safe air environment for personnel within.

[0004] In summary, existing technologies struggle to meet the comprehensive requirements of on-site tunnel command in challenging environments, including pressurization, temperature control, structural strength, and mobility. Therefore, a pressurized support cabin capable of adapting to the complex tunnel environment is urgently needed, featuring functions such as pressure regulation, thermal insulation, robust structure, flexible mobility, and toxic gas filtration, to enhance the safety and effectiveness of on-site tunnel command. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the present invention provides a pressurized support cabin for tunnel on-site command, which solves the technical problems existing in the existing technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a pressurized support cabin for on-site command in a tunnel, comprising a main frame, a lifting and traveling device fixedly installed on the outside of the main frame, a multi-layer cabin structure fixedly installed on the upper wall of the main frame, a peep window fixedly installed on the front wall of the multi-layer cabin structure, a pressure-maintaining porch structure fixedly installed on the side wall of the multi-layer cabin structure, an air conditioner fixedly installed on the upper wall of the multi-layer cabin structure, a pressurized air supply unit fixedly installed on the upper wall of the lifting and traveling device, an air filter structure provided on the air inlet end of the pressurized air supply unit, an oxygen supply unit provided on the input end of the pressurized air supply unit, the pressurized air supply unit connected to the multi-layer cabin structure through a hose, a communication structure provided inside as needed to facilitate information communication with the outside world, a central control structure provided to facilitate real-time digital assistance during command in the tunnel, a toxic gas disinfection function provided to facilitate ensuring personnel safety when toxic and harmful gases leak in the tunnel, and an auxiliary operation structure fixedly installed on the upper wall of the multi-layer cabin structure.

[0007] Preferably, the auxiliary operation structure includes a guide rail and a mobile platform, the mobile platform is slidably installed on the guide rail, the guide rail is fixedly installed on the upper wall of the multi-layer cabin structure, a hinge connection seat is rotatably installed on the mobile platform, a first rocker arm is rotatably installed on the hinge connection seat, a second rocker arm is rotatably installed at one end of the first rocker arm, an operating head is rotatably installed at one end of the second rocker arm, a first motor is fixedly installed on the hinge connection seat, a driving end of the first motor is fixedly connected to the first rocker arm, a second motor is fixedly installed on the first rocker arm, and a driving end of the second motor is fixedly connected to one end of the second rocker arm.

[0008] Preferably, the multi-layer cabin structure includes a structural cabin, an inner insulation cabin, and a constant pressure cabin. The inner insulation cabin is fixedly installed in the structural cabin, and the constant pressure cabin is fixedly installed outside the structural cabin. The structural cabin, inner insulation cabin, and constant pressure cabin are cylindrical tubes, and spherical end heads are fixedly installed at both ends of the structural cabin, inner insulation cabin, and constant pressure cabin. The structural cabin and inner insulation cabin are low-pressure spaces, and the pressure resistance is significantly improved by the cylindrical tube and the spherical end heads. The structural cabin adopts a high-strength structure, which is convenient for dealing with structural physical damage caused by collapsed houses. The constant pressure cabin adopts a sealed structure, and its internal pressure is adjusted according to needs, so that when a high-pressure environment or a low-pressure environment is generated outside, the internal and external differential pressures are balanced in stages, reducing the air pressure on the structural cabin, and reducing the gas heat convection through the low-pressure environment between the inner insulation cabin and the structural cabin. When the outside is disturbed by high temperature, the inside can still maintain a suitable temperature.

[0009] Preferably, the pressure-maintaining vestibule structure includes a vestibule pipe, which is fixedly installed at one end of the multi-layer cabin structure. Sealed doors are respectively provided at both ends of the vestibule pipe. A constant pressure machine is provided in the vestibule pipe and the multi-layer cabin structure. When an outsider enters the interior, the outer sealed door is opened first, and the outer sealed door is closed after entering the interior. After a simple disinfection spray treatment, gas is sent in or out through the constant pressure machine, so that the pressure in the vestibule pipe slowly recovers to the same level as the pressure in the multi-layer cabin structure, and then the inner sealed door is opened again, so that the personnel slowly adapt to the pressure change, and no internal gas will leak or external high-pressure gas will enter during the process of opening the cabin door.

[0010] Preferably, an auxiliary ladder is fixedly installed on the outside of the porch pipe, an external door monitoring camera is fixedly installed above the porch pipe, and a disinfection spray head is fixedly installed inside the porch pipe.

[0011] Preferably, the lifting and traveling device includes a vehicle body frame, a lifting structure and a traveling structure, the lifting structure is installed between the vehicle body frame and the main frame, and the traveling structure is installed on the vehicle body frame.

[0012] Preferably, the lifting structure includes a lifting motor, a fixing seat is fixedly installed on the main frame, the lifting motor is fixedly installed on the upper wall of the fixing seat, there are four fixing seats, a lifting frame is fixedly installed on the vehicle body frame, a lead screw is rotatably installed in the fixing seat, one end of the lead screw is fixedly connected to the driving end of the lifting motor, a threaded sleeve is fixedly installed on the lifting frame, and the lead screw is threadedly connected to the threaded sleeve.

[0013] Preferably, the walking structure includes a walking frame, which is fixedly mounted on the vehicle body frame, an electric roller is mounted on the walking frame, a walking track is connected to the electric roller, an auxiliary roller is rotatably mounted on the walking frame, and a protective frame is fixedly mounted outside the walking frame.

[0014] Preferably, a floor panel is fixedly installed at the lower end of the inner thermal insulation cabin, and a backup battery is fixedly installed between the lower wall of the floor panel and the inner thermal insulation cabin for auxiliary power supply in the event of a power outage.

[0015] Beneficial effects: The present invention provides a pressurized support cabin for on-site command in tunnels. The present invention is equipped with a lifting and traveling device. Through the combination of a vehicle frame, a lifting structure and a crawler traveling device, it can realize flexible movement in complex tunnel terrain. At the same time, the lifting function can adapt to the operation requirements of different heights, which is convenient for on-site deployment; by adjusting the pressure in the portal pipe and the cabin by a constant pressure machine, it can effectively avoid unsafe situations caused by air pressure imbalance when personnel or materials enter and exit the cabin, and at the same time prevent internal pressure leakage or intrusion of external high-pressure gas, ensuring the long-term stability of the cabin pressure environment; the multi-layer cabin structure is composed of a structural cabin made of high-strength material, an inner insulation cabin and a constant pressure cabin, which not only enhances the pressure resistance of the cabin and can withstand external high-pressure or low-pressure environments, but also prevents accidents such as tunnel collapse from causing physical damage to the structure. The constant pressure cabin and low air pressure design reduce the damage to the structure caused by the internal and external pressure differential, significantly improving the reliability of the equipment; the low pressure barrier between the inner insulation cabin and the structural cabin significantly reduces the interference of gas thermal convection in high temperature environments, ensuring that the temperature in the cabin is always maintained at an appropriate state. Even if there is external high temperature interference, it can still provide personnel with a comfortable working environment. It is equipped with a toxic gas filtration system and a disinfection spray device in the corridor pipe. In an environment where toxic or polluted gas leaks, the disinfection spray and the booster air filter device can effectively protect the air quality in the cabin and the health and safety of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention provides a schematic diagram of the three-dimensional structure of a pressurized support cabin for on-site tunnel command.

[0017] Figure 2 This is a schematic side perspective structural diagram of a pressurized support cabin for on-site tunnel command created by the present invention.

[0018] Figure 3 The present invention provides a schematic top view of the structure of a pressurized support cabin for on-site tunnel command.

[0019] Figure 4 The present invention provides a schematic side structural diagram of a pressurized support cabin for on-site tunnel command.

[0020] Figure 5 The present invention provides a schematic three-dimensional cross-sectional structure diagram of a pressurized support cabin for on-site tunnel command.

[0021] Figure 6 This is a schematic diagram of the main structure of a pressurized support cabin for tunnel on-site command created by the present invention.

[0022] Figure 7 The present invention provides a schematic diagram of the first main cross-sectional structure of a pressurized support cabin for on-site tunnel command.

[0023] Figure 8 The present invention provides a second main cross-sectional structural diagram of a pressurized support cabin for on-site tunnel command.

[0024] Figure 9 The present invention provides a schematic diagram of the third main cross-sectional structure of a pressurized support cabin for on-site tunnel command.

[0025] In the figure: 1. Main frame; 2. Peep window; 3. Air conditioner; 4. Booster air supply unit; 5. Air filter structure; 6. Oxygen supply unit; 7. Structural cabin; 8. Inner insulation cabin; 9. Constant pressure cabin; 10. Doorway pipe; 11. Sealed door; 12. Constant pressure machine; 13. Auxiliary ladder; 14. External door surveillance camera; 15. Disinfection spray head; 16. Vehicle frame; 17. Lifting motor; 18. Fixed seat; 19. Lifting frame; 20. Screw; 21. Threaded sleeve; 22. Traveling frame; 23. Electric roller; 24. Traveling track; 25. Auxiliary roller; 26. Protective frame; 27. Floor panel; 28. Spare battery; 29. ​​Guide rail; 30. Mobile platform; 31. Articulated connector; 32. First rocker arm; 33. Second rocker arm; 34. Operating head; 35. First motor; 36. Second motor. DETAILED DESCRIPTION

[0026] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The detailed description is as follows.

[0027] See also Figures 1-9 The present invention provides a technical solution: a pressurized support cabin for on-site command in a tunnel, comprising a main frame 1, a lifting and traveling device fixedly installed on the outside of the main frame 1, a multi-layer cabin structure fixedly installed on the upper wall of the main frame 1, a peep window 2 fixedly installed on the front wall of the multi-layer cabin structure, a pressure-maintaining porch structure fixedly installed on the side wall of the multi-layer cabin structure, an air conditioner 3 fixedly installed on the upper wall of the multi-layer cabin structure, a pressurized air supply unit 4 fixedly installed on the upper wall of the lifting and traveling device, an air filter structure 5 provided on the air inlet end of the pressurized air supply unit 4, an oxygen supply unit 6 provided on the input end of the pressurized air supply unit 4, the pressurized air supply unit 4 is connected to the multi-layer cabin structure through a hose, a communication structure is provided inside as needed to facilitate information communication with the outside world, a central control structure is provided to facilitate real-time digital assistance during command in the tunnel, a toxic gas disinfection function is provided to facilitate personnel safety when toxic and harmful gases leak in the tunnel, and an auxiliary operation structure is fixedly installed on the upper wall of the multi-layer cabin structure.

[0028] This embodiment is further configured such that the auxiliary operation structure includes a guide rail 29 and a mobile platform 30, the mobile platform 30 is slidably mounted on the guide rail 29, the guide rail 29 is fixedly mounted on the upper wall of the multi-layer cabin structure, a hinge connection seat 31 is rotatably mounted on the mobile platform 30, a first rocker arm 32 is rotatably mounted on the hinge connection seat 31, a second rocker arm 33 is rotatably mounted on one end of the first rocker arm 32, an operating head 34 is rotatably mounted on one end of the second rocker arm 33, a first motor 35 is fixedly mounted on the hinge connection seat 31, a driving end of the first motor 35 is fixedly connected to the first rocker arm 32, a second motor 36 is fixedly mounted on the first rocker arm 32, and a driving end of the second motor 36 is fixedly connected to one end of the second rocker arm 33.

[0029] This embodiment is further configured as follows: the multi-layer cabin structure includes a structural cabin 7, an inner insulation cabin 8, and a constant pressure cabin 9. The inner insulation cabin 8 is fixedly installed in the structural cabin 7, and the constant pressure cabin 9 is fixedly installed outside the structural cabin 7. The structural cabin 7, the inner insulation cabin 8, and the constant pressure cabin 9 are cylindrical tubes, and spherical ends are fixedly installed at both ends of the structural cabin 7, the inner insulation cabin 8, and the constant pressure cabin 9. The structural cabin 7 and the inner insulation cabin 8 are low-pressure spaces. The pressure resistance is significantly improved by the cylindrical tubes and the spherical ends. The structural cabin 7 adopts a high-strength structure, which is convenient for coping with structural physical damage caused by collapsed houses. The constant pressure cabin 9 adopts a sealed structure, and its internal pressure is adjusted according to needs. When a high-pressure environment or a low-pressure environment is generated outside, the internal and external differential pressures are balanced in stages, reducing the air pressure on the structural cabin 7. The low-pressure environment between the inner insulation cabin 8 and the structural cabin 7 reduces gas heat convection. When the outside is disturbed by high temperature, the inside can still maintain a suitable temperature.

[0030] This embodiment is further configured such that the pressure-maintaining vestibule structure includes a vestibule pipe 10, which is fixedly installed at one end of the multi-layer cabin structure. Sealed doors 11 are respectively provided at both ends of the vestibule pipe 10, and a constant pressure machine 12 is provided in the vestibule pipe 10 and the multi-layer cabin structure. When an outsider enters the interior, the outer sealed door 11 is opened first, and then the outer sealed door 11 is closed after entering the interior. After a simple disinfection spray treatment, gas is sent in or out through the constant pressure machine 12, so that the pressure in the vestibule pipe 10 slowly recovers to be consistent with the pressure in the multi-layer cabin structure, and then the inner sealed door 11 is opened again, so that the personnel slowly adapt to the pressure change, and no internal gas will leak or external high-pressure gas will enter during the process of opening the cabin door.

[0031] Transport the support cabin to the tunnel construction site or emergency rescue site by means of transportation; adjust the cabin to a stable state and ensure that a convenient entrance and exit is formed with the operating area; start the lifting device, adjust the lifting motor 17 to drive the screw 20, and make the lifting frame 19 slide up and down to ensure that the cabin is firmly placed and docked with the operating area, and adjust the cabin height according to the ground height difference in the tunnel; external personnel arrive outside the cabin, enter the pressure-maintaining corridor, and close the outer sealing door 11; start the disinfection spray device in the corridor to perform preliminary disinfection of the external personnel's whole body equipment and clothing; start the constant pressure machine 12 to gradually adjust the pressure balance between the corridor and the cabin to ensure that the pressure inside the corridor is consistent with that inside the cabin; open the inner sealing door 11, enter the cabin, and then close it. Inner sealed cabin door; use the cabin's communication system to maintain real-time communication and data sharing with external construction teams or rescue teams for efficient scheduling; if direct operation outside the cabin is required, complete related operations through the auxiliary operation structure; when personnel are active in the cabin, they can start the booster air supply machine 4 and the oxygen supply equipment to provide high-pressure fresh air to the cabin; start the constant temperature system, and adjust the temperature and humidity in the cabin to a suitable state through the inner insulation cabin 8 and the constant pressure system; enhance the function of the air filter device to prevent external harmful substances from entering the cabin and protect the air quality in the cabin; when leaving the cabin, personnel enter the pressure-maintaining corridor and close the inner sealed door 11; adjust the air pressure inside and outside the corridor to gradually balance the pressure to the atmospheric pressure outside the cabin; open the outer sealed door 11 and leave the corridor pipe 10.

[0032] This embodiment is further configured such that an auxiliary ladder 13 is fixedly installed on the outside of the corridor pipe 10, an outer door monitoring camera 14 is fixedly installed above the corridor pipe 10, and a disinfection spray head 15 is fixedly installed inside the corridor pipe 10.

[0033] This embodiment is further configured such that the lifting and traveling device includes a vehicle body frame 16 , a lifting structure and a traveling structure. The lifting structure is installed between the vehicle body frame 16 and the main frame 1 , and the traveling structure is installed on the vehicle body frame 16 .

[0034] This embodiment is further configured as follows: the lifting structure includes a lifting motor 17, a fixing seat 18 is fixedly installed on the main frame 1, the lifting motor 17 is fixedly installed on the upper wall of the fixing seat 18, there are four fixing seats 18, a lifting frame 19 is fixedly installed on the vehicle body frame 16, a lead screw 20 is rotatably installed in the fixing seat 18, one end of the lead screw 20 is fixedly connected to the driving end of the lifting motor 17, a threaded sleeve 21 is fixedly installed on the lifting frame 19, and the lead screw 20 is threadedly connected to the threaded sleeve 21.

[0035] This embodiment is further configured such that the walking structure includes a walking frame 22, the walking frame 22 is fixedly mounted on the vehicle body frame 16, an electric roller 23 is mounted on the walking frame 22, a walking track 24 is connected to the electric roller 23, an auxiliary roller 25 is rotatably mounted on the walking frame 22, and a protective frame 26 is fixedly mounted outside the walking frame 22.

[0036] This embodiment is further configured such that a floor panel 27 is fixedly mounted on the lower end of the inner thermal insulation chamber 8, and a backup battery 28 is fixedly mounted between the lower wall of the floor panel 27 and the inner thermal insulation chamber 8 for auxiliary power supply in case of power failure.

[0037] The detailed connection means are well-known technologies in this field; the support cabin is brought to the tunnel construction site or emergency rescue site by means of transportation, and the walking device (crawler or electric roller 23) of the pressurized support cabin is used to move it to the predetermined position and adjust it to a stable state. The height of the cabin is adjusted according to the height difference of the ground in the tunnel using the lifting device, and the lifting motor 17 is started. The driving end of the lifting motor 17 drives the screw 20 to rotate and then drives the threaded sleeve 21 to make the lifting frame 19 slide up and down in the fixed seat 18, thereby adjusting the height to ensure that the cabin is firmly placed and maintains convenient access to the operation area. After arriving outside the cabin, the personnel enter the pressure-maintaining corridor pipe 10, close the outer sealing door 11, and start the spray disinfection device in the closed corridor to disinfect outsiders. The crew members carry out preliminary disinfection and protection (usually whole body clothing and equipment), the constant pressure machine 12 is started, and the air pressure inside and outside the corridor pipe 10 is balanced. The pressure inside the corridor is gradually and slowly adjusted to be consistent with the pressure inside the cabin to ensure that the personnel can safely adapt to the environmental pressure. After the pressure balance is completed, the personnel open the inner sealed door 11 and officially enter the cabin. After entering, the cabin environment can be monitored through the central system, including basic indicators such as temperature, air pressure, oxygen concentration and toxic gas detection instruments. According to the commander's requirements, comfort equipment (such as air conditioning temperature, lighting, etc.) can be adjusted to meet the needs of long-term work. The commander maintains real-time communication and data sharing with the external construction team or rescue team through the communication structure in the cabin, and conducts efficient scheduling and command issuance.

[0038] When it is necessary to perform operations directly outside the cabin, such as isolating and operating dangerous valves, operating underwater valves in dangerous environments, or other situations requiring auxiliary operations, the mobile platform 30 moves on the guide rail 29 and can be driven by a linear motor. The rotation of the hinge connector 31 is then adjusted by the built-in direction motor to adjust the direction of the robotic arm. Then the first motor 35 and the second motor 36 drive the first rocker arm 32 and the second rocker arm 33 to swing for direction adjustment. The operating head 34 can be installed with structures of different models and functions as needed to meet the usage requirements in different situations.

[0039] With the help of the digital function of the central control system, real-time on-site data (such as abnormal air pressure, temperature and humidity changes, toxic gas concentration, etc.) can be collected to assist decision-making; if necessary, the alarm mechanism will be activated. If the oxygen concentration in the tunnel environment is abnormal, the booster air supply machine 4 and the oxygen supply machine 6 will be started to provide high-pressure fresh air to the people inside the cabin. If the outside temperature inside the tunnel is too high or too low, the constant temperature system will be started, and the temperature and humidity in the cabin will be adjusted to a comfortable level through the combined effect of the inner insulation cabin 8 and the constant pressure device; at the same time, the low-pressure area structure reduces the heat loss or conduction in the cabin. If toxic gas leaks outside, ensure that the cabin door is closed and the air filter function of the blower is increased to prevent external harmful gases from entering and maintain the cleanliness of the cabin air. The backup battery 28 is used as an auxiliary power source to ensure the normal operation of key functional modules (such as communication devices, constant pressure machine 12, etc.), and can maintain operation even in the event of power outages or major failures. After completing the command or operation tasks, the personnel inside the cabin need to leave safely through the pressure-maintaining corridor pipe 10. After opening the inner sealed door 11 and entering the corridor pipe 10, close the inner sealed door 11. The constant pressure machine 12 gradually adjusts the pressure difference between the inside of the corridor and the outside of the cabin until the corridor pressure is consistent with the atmospheric pressure outside the cabin. After opening the outer sealed door 11, leave the corridor and enter the area outside the tunnel. When leaving the cabin, the personnel can choose to start the secondary disinfection spray function when passing through the outer corridor pipe 10 to thoroughly clean up possible pollutants and ensure the safety of the internal environment of the cabin.

[0040] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pressurized support cabin for tunnel on-site command, comprising a main frame (1), characterized in that: The main frame (1) is fixedly mounted with a lifting and traveling device on the outside, the main frame (1) is fixedly mounted with a multi-layer cabin structure on the upper wall, the front wall of the multi-layer cabin structure is fixedly mounted with a peep window (2), the side wall of the multi-layer cabin structure is fixedly mounted with a pressure-maintaining porch structure, the upper wall of the multi-layer cabin structure is fixedly mounted with an air conditioner (3), the upper wall of the lifting and traveling device is fixedly mounted with a pressurized air supply machine (4), the air inlet end of the pressurized air supply machine (4) is provided with an air filter structure (5), the input end of the pressurized air supply machine (4) is provided with an oxygen supply machine (6), the pressurized air supply machine (4) is connected to the multi-layer cabin structure through a hose, and the upper wall of the multi-layer cabin structure is fixedly mounted with an auxiliary operation structure; The multi-layer cabin structure comprises a structural cabin (7), an inner thermal insulation cabin (8), and a constant pressure cabin (9); the inner thermal insulation cabin (8) is fixedly installed in the structural cabin (7), and the constant pressure cabin (9) is fixedly installed outside the structural cabin (7); the structural cabin (7), the inner thermal insulation cabin (8), and the constant pressure cabin (9) are cylindrical tubes; spherical ends are fixedly installed at both ends of the structural cabin (7), the inner thermal insulation cabin (8), and the constant pressure cabin (9); the structural cabin (7) and the inner thermal insulation cabin (8) are low-pressure spaces; the constant pressure cabin (9) adopts a sealed structure, and its internal pressure is adjusted as needed, so that when a high-pressure environment or a low-pressure environment is generated outside, the internal and external differential pressures are balanced in stages, thereby reducing the pressure on the structural cabin (7).

2. A pressurized support cabin for tunnel on-site command according to claim 1, characterized in that: The auxiliary operation structure includes a guide rail (29) and a mobile platform (30), wherein the mobile platform (30) is slidably mounted on the guide rail (29), and the guide rail (29) is fixedly mounted on the upper wall of the multi-layer cabin structure. A hinge connection seat (31) is rotatably mounted on the mobile platform (30), and a first rocker arm (32) is rotatably mounted on the hinge connection seat (31). A second rocker arm (33) is rotatably mounted on one end of the first rocker arm (32), and an operating head (34) is rotatably mounted on one end of the second rocker arm (33). A first motor (35) is fixedly mounted on the hinge connection seat (31), and a driving end of the first motor (35) is fixedly connected to the first rocker arm (32). A second motor (36) is fixedly mounted on the first rocker arm (32), and a driving end of the second motor (36) is fixedly connected to one end of the second rocker arm (33).

3. The pressurized support cabin for tunnel on-site command according to claim 2 is characterized in that: The pressure-maintaining corridor structure comprises a corridor pipe (10), wherein the corridor pipe (10) is fixedly installed at one end of the multi-layer cabin structure, and sealing doors (11) are respectively provided at both ends of the corridor pipe (10), and a constant pressure machine (12) is provided in the corridor pipe (10) and the multi-layer cabin structure.

4. The pressurized support cabin for tunnel on-site command according to claim 3 is characterized in that: An auxiliary ladder (13) is fixedly installed on the outside of the porch pipe (10), an external door monitoring camera (14) is fixedly installed above the porch pipe (10), and a disinfection spray head (15) is fixedly installed inside the porch pipe (10).

5. The pressurized support cabin for tunnel on-site command according to claim 4 is characterized in that: The lifting and traveling device comprises a vehicle body frame (16), a lifting structure and a traveling structure; the lifting structure is installed between the vehicle body frame (16) and the main frame (1); and the traveling structure is installed on the vehicle body frame (16).

6. The pressurized support cabin for tunnel on-site command according to claim 5, characterized in that: The lifting structure includes a lifting motor (17), a fixing seat (18) is fixedly installed on the main frame (1), the lifting motor (17) is fixedly installed on the upper wall of the fixing seat (18), and there are four fixing seats (18). A lifting frame (19) is fixedly installed on the vehicle body frame (16), a lead screw (20) is rotatably installed in the fixing seat (18), one end of the lead screw (20) is fixedly connected to the driving end of the lifting motor (17), and a threaded sleeve (21) is fixedly installed on the lifting frame (19), and the lead screw (20) is threadedly connected to the threaded sleeve (21).

7. The pressurized support cabin for tunnel on-site command according to claim 6 is characterized in that: The walking structure comprises a walking frame (22), the walking frame (22) being fixedly mounted on the vehicle body frame (16), a motorized roller (23) being mounted on the walking frame (22), a walking track (24) being connected to the motorized roller (23), an auxiliary roller (25) being rotatably mounted on the walking frame (22), and a protective frame (26) being fixedly mounted outside the walking frame (22).

8. The pressurized support cabin for tunnel on-site command according to claim 1 is characterized in that: A floor panel (27) is fixedly mounted on the lower end of the inner heat-insulating cabin (8), and a backup battery (28) is fixedly mounted between the lower wall of the floor panel (27) and the inner heat-insulating cabin (8).

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