Rescue vehicle structure capable of running in two directions

Abstract

The invention relates to the technical field of hybrid electric vehicles, in particular to a two-way driving rescue vehicle structure which is characterized in that one side of a vehicle frame is provided with an air inlet hole communicated with the air inlet end of a generator module, one side of the vehicle frame is further provided with an annular flow dividing box and a shell, and the inner ring of the annular flow dividing box is provided with a plurality of oxygen outlets; an exhaust pipe located below the frame is arranged at the exhaust end of the generator module, a control module is arranged in the storage box, an oxygen bottle is placed in the control module, and through cooperative work of an oxygen detector, the oxygen bottle, a valve, a first driving motor, a drainage fan, an annular flow dividing box and other components, when the environment oxygen concentration is insufficient, the oxygen bottle is driven to be in a closed state; according to the invention, oxygen is automatically supplemented, the problems of power interruption, heat dissipation faults and the like of the existing two-way driving rescue vehicle in an extreme oxygen-deficient environment are solved, the vehicle can still normally operate in low-oxygen places such as a tunnel and an underground space, and the applicability and reliability of the rescue vehicle in a complex environment are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hybrid electric vehicles, in particular to a bidirectional travel rescue vehicle structure. Background Art

[0002] Two-way rescue vehicles, also known as dual-head fire trucks, are specialized vehicles designed for specialized rescue scenarios. Their application stems from the limitations of traditional rescue vehicles in narrow alleys and tunnels, aiming to improve rescue efficiency and protect lives and property.

[0003] The patent with publication number CN206551855U proposes a two-way rescue vehicle structure applied to the field of hybrid vehicle technology. A front transmission is arranged in the front cab of the two-way rescue vehicle structure, and a rear transmission is arranged in the rear cab. The front drive axle of the two-way rescue vehicle structure is connected to electric motor I, and the rear drive axle is connected to electric motor II. Electric motor I and electric motor II are respectively connected to batteries. Electric motor I and electric motor II are also connected to a control component that can control the start and stop of electric motor I and electric motor II. The two-way rescue vehicle structure described in the utility model has a simple structure and low manufacturing cost. It can conveniently and reliably adapt to long-distance tunnel rescue and operations in an anaerobic environment in the tunnel. It will not be affected by lack of oxygen or anaerobic conditions and effectively improves power.

[0004] When the above structure is in use, the engine starts when the battery is low, but no oxygen supply measures are involved. The adaptability to oxygen-deficient environments only remains at the level of "not relying on diesel engines". In some extreme environments, when the oxygen content in the environment is low, it is easy to cause chain reactions such as power interruption and operational failure of the rescue vehicle. Summary of the Invention

[0005] (1) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present invention provides a bidirectional travel rescue vehicle structure.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a bidirectional rescue vehicle structure, comprising a frame, two cabs symmetrically arranged at the front and rear ends of the frame, a load-bearing plate provided at the upper end of the frame, a bottom box provided below the cabs, a generator module, a control module, and a storage box provided in the frame, and a power motor provided in the bottom box;

[0009] The power motor and generator module are connected to the control module via control lines respectively;

[0010] An air inlet hole connected to the air inlet end of the generator module is provided on one side of the frame. An annular diverter box and a shell are also provided on one side of the frame. An oxygen detector is provided in the shell. The inner ring of the annular diverter box is provided with multiple oxygen outlets. The exhaust end of the generator module is provided with an exhaust pipe located below the frame. A control module is provided inside the storage box. An oxygen cylinder is placed in the control module, and a limit assembly for limiting the position of the oxygen cylinder is provided on the control module. An outlet pipe is provided at the outlet end of the oxygen cylinder. A valve is provided on the outlet pipe. The outlet pipe is connected to the annular diverter box through a transfer tube, and the oxygen detector is connected to the valve through an electrical signal.

[0011] Furthermore, the present invention is improved in that the air inlet is located at the center of the annular diverter box, and a second transfer tube penetrating the vehicle frame is provided on the rear side of the annular diverter box, and the second transfer tube is connected to the transfer tube.

[0012] In order to facilitate the assembly of the annular diverter box and the protective shell, the improvements of the present invention are that a plurality of positioning plates are provided on the circumferential side of the annular diverter box, the positioning plates are fixed to the outer side of the frame by screws, an annular thread groove is provided on the outer side of the frame, the annular diverter box is located at the inner ring of the annular thread groove, the circumferential side of the protective shell is inserted into the interior of the annular thread groove and is threadedly connected to the annular thread groove, the annular diverter box is located inside the protective shell, a shell is provided on the outside of the protective shell, a plurality of air inlet holes are provided on the shell, the oxygen detector is installed inside the shell, and the oxygen detector is connected to the control module through electrical signals.

[0013] In order to improve the stability of the generator module during use, the improvements of the present invention are as follows: a first drive motor is provided on the inner side of the protective shell, an output end of the first drive motor is provided with a first rotating shaft inserted into the inside of the annular diverter box, a plurality of mixing blades are provided on the first rotating shaft, a drainage chamber is provided on the transfer tube, a bracket is provided in the drainage chamber, a drainage fan is provided on the bracket, and the drainage fan is connected to the control module through electrical signals.

[0014] In order to facilitate the replacement of oxygen cylinders, the present invention has the following improvements: a cavity is provided in the storage box, a positioning seat is placed in the cavity, the oxygen cylinder is fixed to the middle part of the positioning seat, the rear end of the storage box is provided with an adapter hole connected to the adapter tube, the inner side of the storage box is provided with a sealing ring located around the adapter hole, one end of the air outlet pipe is provided with a docking plate that contacts the sealing ring, the front end of the positioning seat is provided with multiple handles, one side of the frame is provided with a cover plate for shielding the cavity, the cover plate can limit the oxygen cylinder in the cavity, the limiting assembly includes a second drive motor, a box body and two clamping plates, two guide grooves are symmetrically provided on the upper end of the storage box, and the clamping plate The top is inserted into the guide groove and slidably connected with the guide groove, the box body and the second driving motor are fixed to the upper end of the storage box, and the second rotating shaft is rotatably set on the box body, and two threaded rods with reverse threaded structures are symmetrically provided at both ends of the second rotating shaft, and the two threaded rods are respectively inserted into the interior of the two clamping plates, and two card slots are symmetrically provided on both sides of the positioning seat, and the bottom end of the clamping plate is provided with a card block that penetrates the storage box and is inserted into the interior of the card slot, and the card block is tightly fitted with the card slot, and the middle part of the second rotating shaft is provided with a driven bevel gear located inside the box body, and the output end of the second driving motor is provided with a driving bevel gear located inside the box body and meshing with the driven bevel gear.

[0015] Furthermore, the present invention is improved in that the first drive motor and the second drive motor are both servo motors, and the transfer pipe and the air outlet pipe are both metal pipes.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a bidirectional rescue vehicle structure with the following beneficial effects:

[0018] Enhanced adaptability to extreme environments: Through the coordinated work of components such as the oxygen detector, oxygen cylinder, valve, first drive motor, drainage fan, and annular diverter box, oxygen is automatically replenished when the ambient oxygen concentration is insufficient. This solves the problems of power interruption and heat dissipation failure that existing two-way rescue vehicles are prone to in extreme oxygen-deficient environments, ensuring that the vehicle can still operate normally in low-oxygen places such as tunnels and underground spaces, greatly improving the applicability and reliability of rescue vehicles in complex environments.

[0019] Ensure stable operation of the equipment: The first drive motor drives the mixing blades to fully mix the supplemented oxygen with the air, ensuring the stability of the gas composition entering the generator module, providing good conditions for the generator module to operate continuously and stably, avoiding performance degradation or failure of the generator module due to insufficient oxygen, extending the service life of the equipment, and reducing maintenance costs.

[0020] Easy oxygen cylinder replacement: The design of the storage box, positioning base, limiter components (secondary drive motor, box body, clamping plate, etc.), and cover makes oxygen cylinder replacement simple and quick. Operators can easily remove and install oxygen cylinders without complex tools or specialized skills, improving rescue preparation efficiency and ensuring that the rescue vehicle can quickly restore oxygen supply capacity in an emergency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first viewing angle;

[0022] Figure 2 is a schematic diagram of the third perspective structure of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the frame of the present invention;

[0024] Figure 4 For the present invention Figure 3 A top view of

[0025] Figure 5 Schematic diagram of the installation structure of the positioning seat in the present invention;

[0026] Figure 6 Schematic diagram of the docking structure of the air outlet pipe and the transfer pipe in the present invention;

[0027] Figure 7 For the present invention Figure 2 Schematic diagram of the local enlarged structure at A in the middle;

[0028] Figure 8 For the present invention Figure 4 Schematic diagram of the local enlarged structure at B in the middle;

[0029] Figure 9 This is a schematic diagram of the installation structure of the drainage fan in the present invention;

[0030] Figure 10 Schematic diagram of the connection structure between the driving bevel gear and the driven bevel gear in the present invention;

[0031] Figure 11 Schematic diagram of the structure of the annular diverter box in the present invention;

[0032] In the figure: 1. cab; 2. frame; 3. load-bearing plate; 4. bottom box; 5. generator module; 6. control module; 7. storage box; 8. annular diverter box; 9. annular threaded groove; 10. protective shell; 11. shell; 12. air inlet; 13. first drive motor; 14. mixing blade; 15. exhaust pipe; 16. cavity; 17. cover plate; 18. positioning seat; 19. oxygen cylinder; 20. slot; 21. guide groove; 22. clamping plate; 23. block; 24. box; 25. second rotating shaft; 26. threaded rod; 27. second drive motor; 28. driving bevel gear; 29. ​​driven bevel gear; 30. oxygen outlet; 31. adapter tube; 32. adapter hole; 33. outlet pipe; 34. valve; 35. sealing ring; 36. drainage chamber; 37. bracket; 38. drainage fan; 39. docking plate. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] See also Figures 1-11 The bidirectional rescue vehicle structure of the present invention includes a frame 2, two cabs 1 are symmetrically arranged at the front and rear ends of the frame 2, a load-bearing plate 3 is provided at the upper end of the frame 2, a bottom box 4 is provided under the cab 1, a generator module 5, a control module 6 and a storage box 7 are provided in the frame 2, and a power motor is provided in the bottom box 4, and the two power motors drive the front and rear wheels of the vehicle respectively;

[0035] The power motor and generator module 5 are connected to the control module 6 via control lines respectively;

[0036] One side of the frame 2 is provided with an air inlet 12 connected to the air inlet end of the generator module 5. One side of the frame 2 is also provided with an annular diverter box 8 and a shell 11. An oxygen detector is provided in the shell 11. The inner ring of the annular diverter box 8 is provided with multiple oxygen outlets 30. The exhaust end of the generator module 5 is provided with an exhaust pipe 15 located below the frame 2. The interior of the storage box 7 is provided with a control module 6. An oxygen cylinder 19 is placed in the control module 6, and a limit assembly for limiting the position of the oxygen cylinder 19 is provided on the control module 6. The outlet end of the oxygen cylinder 19 is provided with an outlet pipe 33, and a valve 34 is provided on the outlet pipe 33. The outlet pipe 33 is connected to the annular diverter box 8 through a transfer tube 31, and the oxygen detector is connected to the valve 34 through an electrical signal.

[0037] The air inlet 12 is located at the center of the annular diverter box 8 . A second transfer tube 31 penetrating the vehicle frame 2 is provided on the rear side of the annular diverter box 8 . The second transfer tube 31 is connected to the transfer tube 31 .

[0038] The annular diverter box 8 is provided with a plurality of positioning plates on its circumferential side, and the positioning plates are fixed to the outer side of the frame 2 by screws. The outer side of the frame 2 is provided with an annular thread groove 9, and the annular diverter box 8 is located at the inner circle of the annular thread groove 9. The circumferential side of the protective shell 10 is inserted into the interior of the annular thread groove 9 and is threadedly connected to the annular thread groove 9. The annular diverter box 8 is located inside the protective shell 10, and a shell 11 is provided on the outside of the protective shell 10. The shell 11 is provided with a plurality of air inlet holes 12. The oxygen detector is installed inside the shell 11, and the oxygen detector is connected to the control module 6 through electrical signals.

[0039] The control module 6 serves as the "brain" of the entire system, coordinating the work of the generator module 5 and the power motor. The power motor relies on the battery pack in the control module 6 for power to operate and drive the vehicle. When the battery pack power drops to a certain level, the control module 6 sends a start command to the generator module 5 through the control line to start the engine and generator. The electric energy generated by the generator is transmitted back to the control module 6 via the control line to charge the battery pack, maintain the stability of the battery pack power, and ensure that the power motor continues to obtain electricity. At the same time, the control module 6 receives the electrical signal from the oxygen detector. When it detects that the oxygen concentration at the air inlet 12 is insufficient, the control module 6 controls the valve 34 to open, starts the first drive motor 13 and the drainage fan 38, and adjusts the oxygen concentration entering the generator module 5 to ensure the normal operation of the generator module 5, thereby ensuring the stable operation of the entire vehicle power system;

[0040] Basic Power and Energy Supply: The power motor within the chassis 4 serves as the vehicle's driving force, relying on power from the battery pack within the control module 6. The generator module 5 within the vehicle frame 2 consists of a diesel engine, generator, cooling system, and air intake control unit. When the battery pack is low on power, the control module 6 activates the generator module 5. The engine's operation drives the generator, converting mechanical energy into electrical energy. This energy is then transmitted to the control module 6 via control lines, replenishing the battery pack and ensuring a continuous power supply to the power motor, keeping the vehicle moving.

[0041] Air intake and oxygen concentration adjustment: During vehicle driving, air enters through the air intake hole 12 on one side of the frame 2. There are no mandatory regulations for the installation position and installation height of the air intake hole 12. Air serves as a combustion-supporting gas when the generator module 5 is working. After the generator module 5 participates in combustion and produces work, it is discharged from the exhaust pipe 15 located below the frame 2. Multiple air intake holes 12 on the shell 11 allow external air to flow in, and the oxygen detector inside the shell 11 detects the oxygen concentration of the air at the air intake hole 12 in real time. When the oxygen detector detects that the oxygen concentration is lower than the set threshold, it sends an electrical signal to the control module 6, and the control module 6 immediately issues a command: open the valve 34 on the outlet pipe 33, start the first drive motor 13 and the drainage fan 38.

[0042] A first drive motor 13 is provided on the inner side of the protective shell 10. The output end of the first drive motor 13 is provided with a first rotating shaft inserted into the annular diverter box 8. A plurality of mixing blades 14 are provided on the first rotating shaft. A drainage chamber 36 is provided on the transfer tube 31. A bracket 37 is provided in the drainage chamber 36. A drainage fan 38 is provided on the bracket 37. The drainage fan 38 is connected to the control module 6 through an electrical signal.

[0043] At this point, oxygen in oxygen cylinder 19 flows through outlet pipe 33, through adapter hole 32, and into adapter tube 31. Driven by ventilation fan 38, it rapidly flows toward second adapter tube 31 and into annular manifold box 8. Multiple oxygen outlets 30 on the inner ring of annular manifold box 8 blow the oxygen out, where it is thoroughly mixed with the air entering through air inlet 12 by mixing blades 14 driven by first drive motor 13. This increases the oxygen concentration in the air entering generator module 5, ensuring stable operation of generator module 5.

[0044] A cavity 16 is provided in the storage box 7, a positioning seat 18 is placed in the cavity 16, and the oxygen cylinder 19 is fixed to the middle part of the positioning seat 18. The rear end of the storage box 7 is provided with an adapter hole 32 connected to the adapter tube 31, and the inner side of the storage box 7 is provided with a sealing ring 35 located on the side of the adapter hole 32. One end of the outlet pipe 33 is provided with a docking plate 39 that contacts the sealing ring 35. A plurality of handles are provided at the front end of the positioning seat 18. A cover plate 17 for shielding the cavity 16 is provided on one side of the frame 2. The cover plate 17 can limit the oxygen cylinder 19 in the cavity 16. The limiting assembly includes a second drive motor 27, a box body 24 and two clamping plates 22. Two guide grooves 21 are symmetrically provided at the upper end of the storage box 7, and the top of the clamping plate 22 is inserted into the guide groove 2 1 and is slidably connected to the guide groove 21. The box body 24 and the second drive motor 27 are fixed to the upper end of the storage box 7. A second rotating shaft 25 is rotatably set on the box body 24. Two threaded rods 26 with reverse threaded structures are symmetrically set at both ends of the second rotating shaft 25, and the two threaded rods 26 are respectively inserted into the interior of the two clamping plates 22. Two card slots 20 are symmetrically set on both sides of the positioning seat 18. The bottom end of the clamping plate 22 is provided with a card block 23 that penetrates the storage box 7 and is inserted into the interior of the card slot 20. The card block 23 fits tightly with the card slot 20. The middle part of the second rotating shaft 25 is provided with a driven bevel gear 29 located inside the box body 24. The output end of the second drive motor 27 is provided with a driving bevel gear 28 located inside the box body 24 and meshing with the driven bevel gear 29.

[0045] Replacing and securing the oxygen cylinder 19: When the oxygen in the oxygen cylinder 19 is depleted and needs to be replaced, first remove the cover 17 on the side of the frame 2 that shields the cavity 16 of the storage box 7. The second drive motor 27 at the top of the storage box 7 is activated. The drive bevel gear 28 at its output engages the driven bevel gear 29 in the middle of the second rotating shaft 25, driving the second rotating shaft 25 to rotate. The threaded rods 26 with opposing threads at both ends of the second rotating shaft 25 rotate accordingly, causing the two clamping plates 22, which engage the threaded rods 26 and have their tops inserted into the guide grooves 21, to move in opposite directions, removing the block 23, which is inserted into the slot 20 of the positioning seat 18. At this point, the operator pulls the handle at the front of the positioning seat 18 to remove the positioning seat 18, along with the depleted oxygen cylinder 19, from the cavity 16 of the storage box 7, completing the removal of the old cylinder. To install the new oxygen cylinder 19, place it in the center of the positioning seat 18, secure it, and push it into the cavity 16 of the storage box 7. After the positioning seat 18 is in place, the docking plate 39 is in close contact with the sealing ring 35 on the side of the transfer hole 32 inside the storage box 7. At the same time, the second drive motor 27 is started to rotate in the opposite direction, so that the clamping plate 22 is reset, and the card block 23 is reinserted into the card slot 20 to firmly fix the positioning seat 18 and the oxygen cylinder 19. The cover plate 17 is installed back in place to ensure that the oxygen cylinder 19 is stable and does not shake during the driving of the vehicle.

[0046] The annular diverter box 8 is fixed to the outside of the frame 2 by means of positioning plate screws, and the protective shell 10 is threadedly connected to the annular threaded groove 9 on the outside of the frame 2. This design not only ensures the stability of the installation of the annular diverter box 8 and the protective shell 10, so that they will not loosen or shift during the driving of the vehicle, but also facilitates disassembly and installation when maintenance or inspection is required, thereby reducing the difficulty and time cost of equipment maintenance. The protective shell 10 can filter the air and has multiple meshes on it, similar to the air filter element on a car.

[0047] The first drive motor 13 and the second drive motor 27 are both servo motors.

[0048] The first drive motor 13 and the second drive motor 27 are both servo motors. Servo motors offer high-precision position and speed control capabilities. In a bidirectional rescue vehicle, the first drive motor 13 drives the mixing blade 14, precisely controlling its speed and angle to ensure adequate and stable mixing of oxygen and air. The second drive motor 27 controls the movement of the clamping plate 22, accurately adjusting the clamping force and position to ensure secure fixation and easy removal of the locating seat 18 and oxygen cylinder 19, meeting the rescue vehicle's requirements for equipment stability and operational flexibility.

[0049] The transfer tube 31 and the air outlet pipe 33 are both made of metal tubes.

[0050] The adapter tube 31 and the outlet tube 33 can be made of aluminum alloy. Aluminum alloy is strong, corrosion-resistant, and heat-resistant. It can withstand the pressure of oxygen output from the oxygen cylinder 19, as well as the vibration and jolt of the vehicle during operation. This ensures a leak-tight and safe oxygen delivery process, prevents oxygen leakage, extends the service life of the pipeline, and reduces the risk of equipment failure due to pipeline damage.

[0051] Generator Module 5: The Cummins QSB7-G5 generator module is an optional feature. The engine in this module covers a wide power range, operating efficiently across a wide load range, meeting the rescue vehicle's power needs under various operating conditions. The generator utilizes advanced power generation technology, offering high efficiency and stable output, rapidly replenishing the battery pack in Control Module 6. Its compact design facilitates installation within the vehicle frame 2, and its excellent reliability and durability make it suitable for the frequent use and complex operating environments of rescue vehicles.

[0052] Control Module 6: We recommend the Siemens SIMATIC S7-1200 series PLC paired with related control modules as the core of the control module. The S7-1200 PLC is powerful and has a rich set of communication interfaces, allowing it to easily communicate with power motors, generator modules 5, oxygen detectors, and other equipment for precise control. It can quickly process various sensor data and control instructions to meet the needs of real-time monitoring and control of rescue vehicles. Its programming is flexible and can be customized according to the actual operating logic of the rescue vehicle to implement functions such as battery power monitoring, generator startup control, and oxygen concentration adjustment. In addition, this series of PLCs has strong anti-interference capabilities and can operate stably in the complex electromagnetic environment during vehicle operation, ensuring the reliability of the entire control system.

[0053] The oxygen detector can be the Dräger X-am5600 oxygen detector, which has excellent anti-interference ability and uses the electrochemical detection principle to accurately detect the oxygen concentration in the environment.

[0054] In the description herein, it should be noted that relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0055] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A two-way rescue vehicle structure, comprising a vehicle frame (2), two cabs (1) symmetrically arranged at the front and rear ends of the vehicle frame (2), a load-bearing plate (3) provided at the upper end of the vehicle frame (2), and a bottom box (4) provided below the cabs (1), characterized in that: The frame (2) is provided with a generator module (5), a control module (6) and a storage box (7), and the bottom box (4) is provided with a power motor; The power motor and generator module (5) are connected to the control module (6) via control lines respectively; An air inlet (12) communicating with the air inlet end of the generator module (5) is provided on one side of the frame (2). An annular diverter box (8) and a shell (11) are also provided on one side of the frame (2). An oxygen detector is provided in the shell (11). The inner ring of the annular diverter box (8) is provided with a plurality of oxygen outlets (30). The exhaust end of the generator module (5) is provided with an exhaust pipe (15) located below the frame (2). A control module (6) is provided inside the storage box (7). An oxygen cylinder (19) is placed in the control module (6). A limit assembly for limiting the position of the oxygen cylinder (19) is provided on the control module (6). An air outlet pipe (33) is provided at the air outlet end of the oxygen cylinder (19). A valve (34) is provided on the air outlet pipe (33). The air outlet pipe (33) is communicated with the annular diverter box (8) through a transfer pipe (31). The oxygen detector and the valve (34) are connected through an electrical signal.

2. The bidirectional rescue vehicle structure according to claim 1, characterized in that: The air inlet (12) is located at the center of the annular diverter box (8), and a second transfer tube (31) penetrating the vehicle frame (2) is provided on the rear side of the annular diverter box (8), and the second transfer tube (31) is communicated with the transfer tube (31).

3. The bidirectional rescue vehicle structure according to claim 2, characterized in that: The annular diverter box (8) is provided with a plurality of positioning plates on its circumferential side, and the positioning plates are fixed to the outer side of the vehicle frame (2) by screws. The outer side of the vehicle frame (2) is provided with an annular thread groove (9). The annular diverter box (8) is located in the inner ring of the annular thread groove (9). The circumferential side of the protective shell (10) is inserted into the interior of the annular thread groove (9) and is threadedly connected to the annular thread groove (9). The annular diverter box (8) is located inside the protective shell (10). The exterior of the protective shell (10) is provided with a shell (11), and the shell (11) is provided with a plurality of air inlet holes (12). The oxygen detector is installed inside the shell (11), and the oxygen detector is connected to the control module (6) through an electrical signal.

4. The bidirectional rescue vehicle structure according to claim 3, characterized in that: A first drive motor (13) is provided on the inner side of the protective shell (10), and an output end of the first drive motor (13) is provided with a first rotating shaft inserted into the interior of the annular diverter box (8), and a plurality of mixing blades (14) are provided on the first rotating shaft.

5. The bidirectional rescue vehicle structure according to claim 4, characterized in that: The storage box (7) is provided with a cavity (16), a positioning seat (18) is placed in the cavity (16), and the oxygen cylinder (19) is fixed to the middle part of the positioning seat (18). The rear end of the storage box (7) is provided with an adapter hole (32) connected to the adapter tube (31), the inner side of the storage box (7) is provided with a sealing ring (35) located on the circumference of the adapter hole (32), one end of the air outlet pipe (33) is provided with a docking plate (39) contacting the sealing ring (35), the front end of the positioning seat (18) is provided with a plurality of handles, and one side of the frame (2) is provided with a cover plate (17) for shielding the cavity (16), and the cover plate (17) can limit the position of the oxygen cylinder (19) in the cavity (16).

6. The bidirectional rescue vehicle structure according to claim 5, characterized in that: The limiting assembly includes a second driving motor (27), a box body (24) and two clamping plates (22), two guide grooves (21) are symmetrically arranged on the upper end of the storage box (7), the top of the clamping plate (22) is inserted into the guide groove (21) and is slidably connected to the guide groove (21), the box body (24) and the second driving motor (27) are both fixed to the upper end of the storage box (7), a second rotating shaft (25) is rotatably arranged on the box body (24), two threaded rods (26) with reverse thread structures are symmetrically arranged at both ends of the second rotating shaft (25), and the two threaded rods ( 26) are respectively inserted into the interiors of the two clamping plates (22), two card slots (20) are symmetrically arranged on both sides of the positioning seat (18), the bottom end of the clamping plate (22) is provided with a card block (23) that penetrates the storage box (7) and is inserted into the interior of the card slot (20), and the card block (23) is tightly fitted with the card slot (20), the middle part of the second rotating shaft (25) is provided with a driven bevel gear (29) located inside the box body (24), and the output end of the second driving motor (27) is provided with a driving bevel gear (28) located inside the box body (24) and meshing with the driven bevel gear (29).

7. The bidirectional rescue vehicle structure according to claim 6, characterized in that: The transfer tube (31) is provided with a drainage chamber (36), a bracket (37) is provided in the drainage chamber (36), a drainage fan (38) is provided on the bracket (37), and the drainage fan (38) is connected to the control module (6) via an electrical signal.

8. The bidirectional rescue vehicle structure according to claim 7, characterized in that: The first drive motor (13) and the second drive motor (27) are both servo motors, and the transfer tube (31) and the air outlet pipe (33) are both metal tubes.

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