Plateau pressurized medical emergency ambulance

Abstract

The utility model belongs to the technical field of medical rescue equipment, and particularly relates to a plateau pressurizing medical emergency ambulance which comprises a chassis, an equipment cabin, a pressurizing cabin, a pressurizing module, an oxygen supply module, a medical emergency module and a function guarantee module. The equipment compartment is arranged on the rear side of a cab of the ambulance; the pressurizing cabin is located on the rear side of the equipment cabin and comprises a shell, a heat preservation layer and a damp-proof layer. The pressurizing module comprises a pressurizing host and a gas storage tank; the pressurizing module is used for generating and storing compressed air and conveying the compressed air into the pressurizing cabin. The oxygen supply module comprises an oxygen generator and an oxygen supply terminal; and the oxygen generator is arranged in the pressurizing cabin and is connected with the oxygen supply terminal through a pipeline. And the medical first-aid module is accommodated in the pressurizing cabin. And the function guarantee modules are respectively arranged in the pressurization cabin and the equipment cabin and are used for providing power application, environment control, communication and environment illumination guarantee. The utility model aims to solve the problems of poor cross-country ability, poor comfort and single guarantee function of the existing guarantee equipment.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical rescue equipment, and in particular relates to a plateau pressurized medical emergency vehicle. Background Art

[0002] The plateau environment has low air pressure, thin air, and low oxygen content, making living conditions extremely harsh. People who stay in the plateau environment for a long time are prone to altitude sickness and high-altitude pulmonary edema due to low pressure and hypoxia. In severe cases, it can cause symptoms such as pulmonary hypertension, high-altitude heart disease, cerebral hypoxia, and cerebral edema.

[0003] In order to protect the health and life safety of outdoor workers in the plateau, it is necessary to equip them with a kind of support equipment that can provide pressurization, oxygen supply, and medical support for the workers and can be mobile with the workers. At present, the support equipment with relevant functions, such as the plateau pressurized vehicle equipped with a pressurized cabin, usually only has the functions of pressurization, oxygen supply, and limited medical first aid in its pressurized cabin; the existing pressurized vehicles have limited internal space due to the structural design defects of the pressurized cabin, which cannot be equipped with more support equipment, resulting in the problem of single support function; in addition, the plateau road conditions are rugged, and the off-road performance and shock absorption and buffering performance of the existing plateau pressurized vehicles are generally poor. During the transportation of the wounded and sick, the vehicle is not stable and cannot accurately provide medical first aid for the wounded and sick, and even the bumps of the vehicle can easily cause secondary injuries to the wounded and sick. With the gradual increase of outdoor work tasks in the plateau environment, the existing plateau pressurized vehicles are obviously unable to meet the various support needs of workers in the plateau environment.

[0004] Based on the above defects and problems of existing plateau supercharged vehicles, there is an urgent need for a plateau supercharged medical support equipment with good mobility and plateau adaptability, and capable of providing multifunctional support methods such as pressurization, oxygen supply and medical first aid for outdoor workers in plateaus. This is to solve the problem that the existing support equipment has unreasonable design of the pressurized cabin structure, resulting in a single support function, poor off-road performance and comfort, and cannot provide medical first aid to the injured during transportation, and even causes secondary injuries to the injured. Utility Model Content

[0005] The utility model provides a high-altitude pressurized medical emergency vehicle, which is equipped with a structurally optimized pressurized cabin, has pressurization, oxygen supply, medical emergency and more security functions, and has good mobility and adaptability. It aims to solve the problem that the pressurized cabin structure design of existing security equipment is unreasonable, resulting in a single security function, poor off-road performance and comfort, and cannot provide medical emergency treatment to the wounded during transportation, and even causes secondary injuries to the wounded. The specific contents are as follows:

[0006] A plateau pressurized medical emergency vehicle, comprising a chassis, an equipment cabin, a pressurized cabin, a pressurized module, an oxygen supply module, a medical emergency module and a functional guarantee module;

[0007] The chassis includes a frame and a front drive axle, a middle drive axle and a rear drive axle fixed below the frame; the frame is used to carry the cab of the emergency vehicle, the equipment compartment and the pressurized compartment; a double wishbone independent suspension and a buffer device with a torsion bar spring structure are used between the front drive axle and the frame; a double wishbone independent suspension and a buffer device with a variable stiffness coil spring structure are used between the middle drive axle and the rear drive axle and the frame;

[0008] The equipment cabin is arranged at the rear side of the cab and has a storage space inside;

[0009] The pressurized cabin is located at the rear side of the equipment cabin and includes a shell, a heat-insulating layer and a moisture-proof layer;

[0010] The shell is surrounded by metal material to form a closed cavity, and the longitudinal cross-section of the cavity is rectangular;

[0011] The thermal insulation layer is a non-metallic material and is laid on the inner surface of the shell;

[0012] The moisture-proof layer is a non-metallic material and covers the inner surface of the thermal insulation layer;

[0013] The internal pressure of the pressurized cabin is no more than 0.035 MPa, which is used to provide a pressurized environment for passengers;

[0014] The booster module includes a booster main engine and an air storage tank; the booster main engine and the air storage tank are both arranged in the equipment cabin and connected by a pipeline; the booster module is used to generate and store compressed air, and transmit the compressed air to the booster cabin through a pipeline;

[0015] The oxygen supply module includes an oxygen concentrator and an oxygen supply terminal; the oxygen concentrator is arranged in the pressurized cabin and connected to the oxygen supply terminal through a pipeline, so as to supply oxygen to persons suffering from hypoxia;

[0016] The medical emergency module is stored in the pressurized cabin and is used to perform medical examination and emergency treatment on the injured and sick;

[0017] The functional support modules are respectively arranged in the pressurized cabin and the equipment cabin, and are used to provide support for the power application, environmental control, communication, space lighting and safety control of the ambulance.

[0018] Furthermore, the front drive axle, the middle drive axle and the rear drive axle can all transmit driving force, and the vertical distance between the lowest point of the front drive axle, the middle drive axle or the rear drive axle and the ground is ≥420 mm.

[0019] Further, the housing includes a top wall, a bottom wall, a first side wall, a second side wall, a front wall and a rear wall;

[0020] The left and right edges of the top wall are fixedly connected to the upper edges of the first side wall and the second side wall respectively;

[0021] The front and rear edges of the top wall are fixedly connected to the upper edges of the front wall and the rear wall respectively;

[0022] The left and right edges of the bottom wall are fixedly connected to the lower edges of the first side wall and the second side wall respectively;

[0023] The front and rear edges of the bottom wall are fixedly connected to the lower edges of the front wall and the rear wall respectively;

[0024] The edges of both sides of the first side wall, the front wall, the second side wall and the rear wall are fixedly connected in sequence, and are surrounded by the top wall and the bottom wall to form the cavity;

[0025] The connection between the top wall and the first side wall and the second side wall, and the connection between the bottom wall and the first side wall and the second side wall are fixedly connected by a connecting plate; the angle between the connecting plate and the horizontal direction is 15° to 75°;

[0026] The inner surface of the shell is also provided with transversely and longitudinally staggered metal reinforcing ribs.

[0027] Furthermore, the oxygen supply module also includes an oxygen cylinder and an oxygen mask; the oxygen cylinder is fixed on the front wall and the rear wall, and is connected to the oxygen mask through a pipeline; the oxygen mask includes a first-level mask for seriously ill patients and a second-level mask for patients who can breathe independently; the oxygen cylinder and the oxygen mask are used to supply oxygen to patients who need emergency treatment.

[0028] Furthermore, the first side wall, the second side wall and the rear wall are all provided with observation windows;

[0029] The rear wall is provided with a door; the door is an inward opening door;

[0030] Rows of seats are installed on both sides of the bottom wall; storage space is formed under the two seats.

[0031] Further, the medical emergency module includes a cerebral hematoma detector, a monitor, a ventilator, a first aid kit, anti-shock pants, a thermal blanket, a box, an infusion pump, an aspirator, a life support system, a defibrillator, a pulse oximeter and a shovel stretcher;

[0032] The cerebral hematoma detector is fixed on the front wall of the pressurized cabin;

[0033] The monitor is fixed on the first side wall;

[0034] The ventilator is fixed on the first side wall and is located below the monitor;

[0035] The first aid kit is detachably fixed in the storage space;

[0036] The box body includes a first box body and a second box body, which are detachably fixed in the storage spaces on both sides; the infusion pump, the suction device and the life support system are all stored in the first box body; the anti-shock pants, the thermal blanket, the defibrillator and the pulse oximeter are all stored in the second box body

[0037] The scoop-type stretcher is detachably fixed to the first side wall and the second side wall and is located above the seat.

[0038] Furthermore, the boost module also includes a pressure regulating valve, a pressure reducing valve, an emergency pressure relief valve and a safety valve;

[0039] The pressure regulating valve is installed at the gas outlet of the gas storage tank, and can supply gas to the pressurized cabin for pressurization according to the set pressure value and pressurization rate;

[0040] The pressure reducing valve is arranged inside the pressurized cabin and is connected to the outside through a pipeline; the pressure reducing valve is used to discharge the air inside the pressurized cabin to the outside at a set pressure reducing rate;

[0041] The emergency pressure relief valve is arranged on the first side wall, the second side wall or the rear wall, and extends through the first side wall, the second side wall or the rear wall to the outside, and is used to quickly discharge the air in the pressurized cabin to the outside in an emergency;

[0042] The safety valve is arranged on the first side wall, the second side wall or the rear wall, and extends through the first side wall, the second side wall or the rear wall to the outside, and is used to limit the internal pressure of the pressurized cabin to below 0.035MPa.

[0043] Furthermore, the functional guarantee module includes air conditioning, ventilation equipment, power supply and distribution equipment, lighting equipment, communication equipment, monitoring equipment, heater and leveling mechanism;

[0044] The air conditioner adopts a split structure, including an outdoor unit installed outside the equipment compartment and an indoor unit installed inside the front wall; the outdoor unit is connected to the indoor unit through a pipeline;

[0045] The ventilation device is fixedly mounted on the top wall, and its air outlet extends from the inside of the top wall to the outside;

[0046] The power supply and distribution equipment includes a generator installed in the equipment compartment and a distribution box fixed to the front wall of the equipment compartment;

[0047] The lighting device includes an LED lighting lamp embedded in the top wall of the pressurized cabin;

[0048] The communication equipment includes a handheld intercom, which is respectively arranged in the cab and the pressurized cabin and is used for communication between personnel in the cab and the pressurized cabin;

[0049] The monitoring device includes two cameras; the two cameras are arranged at two diagonal positions of the top wall of the pressurized cabin respectively;

[0050] The heater is arranged in the equipment compartment, and its air outlet is connected to the pressurized compartment through a pipeline;

[0051] The leveling mechanism includes outriggers and a leveling control module; the outriggers are mounted on both sides of the frame, and the raising and lowering of the outriggers are controlled by the leveling control module; the leveling control module is arranged in the cab, and is used to determine the concave and convex conditions of the terrain where the ambulance is parked, and send raising or lowering instructions to the outriggers.

[0052] Furthermore, the pressure regulating valve, pressure reducing valve, emergency pressure relief valve and ventilation equipment are all provided with manual control devices.

[0053] Furthermore, the emergency vehicle also includes a control module; the control module includes a PLC host, a touch screen, a speaker, an oxygen concentration sensor, a temperature and humidity sensor, a pressure sensor, and a carbon dioxide concentration sensor;

[0054] The PLC host is integrated with the touch screen and the speaker and fixed on the front wall of the pressurized cabin; the PLC host is electrically connected to the pressure regulating valve, the pressure reducing valve and the ventilation equipment through cables;

[0055] The oxygen concentration sensor, temperature and humidity sensor, pressure sensor and carbon dioxide concentration sensor are all arranged inside the pressurized cabin and are electrically connected to the PLC host through cables;

[0056] The control module is used to realize automatic control of pressure regulation and oxygen concentration regulation in the pressurized cabin, as well as monitoring of temperature, humidity and carbon dioxide concentration inside the pressurized cabin, and can send an alarm signal through the speaker when the pressure, oxygen concentration or carbon dioxide concentration in the pressurized cabin exceeds a limit value.

[0057] The beneficial effects of the utility model are:

[0058] 1. The chassis with good buffering and shock absorption capabilities is adopted, which improves the maneuverability and reduces the bumps and vibrations of the vehicle. Medical staff can provide medical first aid to the injured and sick during transportation, and reduce the chance of secondary injuries to the injured and sick due to vehicle bumps;

[0059] 2. The equipment cabin provides space for accommodating various support equipment. The pressurized cabin adopts a closed shell to ensure that the pressure inside the cabin is stable and does not leak;

[0060] 3. The shell is equipped with an insulation layer to maintain the temperature in the cabin and improve the comfort of passengers. The shell is also covered with a moisture-proof layer to improve the comfort of passengers and prevent the equipment in the cabin from being damaged by moisture.

[0061] 4. The ambulance is equipped with a pressurization module, which can provide compressed air for the pressurization cabin and make the internal pressure of the pressurization cabin stable and safe. In order to meet the needs of pressurization and stabilization during the transport of the wounded and sick on the plateau, the internal pressure of the pressurization cabin is limited to below 0.035MPa. The pressurization cabin is relatively safe within this pressure range, so the ambulance can supply high-pressure oxygen while moving. Compared with the existing technology, the internal pressure of some plateau pressurized vehicles reaches 0.6MPa~0.8MPa. Under such a high pressure, high-pressure oxygen can only be used when parked. Using it while driving will be dangerous due to sudden situations such as bumps and collisions.

[0062] 5. The oxygen supply module and the medical emergency module provide a variety of medical rescue facilities for the wounded and sick. Compared with the existing booster vehicles without medical emergency modules, they can play a role in first aid and stabilization during the evacuation, thus ensuring the health and life of outdoor workers.

[0063] 6. The functional guarantee module provides guarantee for the power application, environmental control, communication and environmental lighting of the emergency vehicle;

[0064] Based on the above technical solution, the utility model can solve the problems of unreasonable pressurized cabin structure design in existing support equipment, resulting in single support function, poor off-road performance and comfort, inability to provide medical first aid to the wounded during transportation, and even causing secondary injuries to the wounded. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without paying any creative work.

[0066] Figure 1 This is a schematic diagram of the overall external structure of the plateau pressurized medical emergency vehicle;

[0067] Figure 2 This is a schematic diagram of the chassis structure of the plateau pressurized medical emergency vehicle;

[0068] Figure 3This is a schematic diagram of the overall structure of the pressurized cabin shell of the plateau pressurized medical emergency vehicle;

[0069] Figure 4 This is a cross-sectional view of the pressurized cabin structure of the high-altitude pressurized medical emergency vehicle;

[0070] Figure 5 This is a schematic front view of the interior structure of the high-altitude pressurized medical emergency vehicle;

[0071] Figure 6 This is a left view showing the internal structure of the pressurized cabin of the high altitude pressurized medical emergency vehicle;

[0072] Figure 7 This is a right view showing the internal structure of the pressurized cabin of the high altitude pressurized medical emergency vehicle;

[0073] Figure 8 This is the PID control system schematic diagram of the plateau booster medical emergency vehicle control system;

[0074] Fig. 9 This is the simulation schematic diagram of the control system of the high-altitude pressurized medical emergency vehicle;

[0075] Fig.10 It is the pressure control curve diagram of the control system of the high-altitude pressurized medical emergency vehicle;

[0076] Fig.11 This is the pressure control flow chart of the control system of the high-altitude pressurized medical emergency vehicle;

[0077] Fig.12 This is the oxygen concentration control flow chart of the control system of the plateau pressurized medical emergency vehicle;

[0078] Fig.13 Software interface 1 for the control system of the high-altitude pressurized medical emergency vehicle;

[0079] Fig.14 Software interface for the control system of the high-altitude pressurized medical emergency vehicle 2;

[0080] Fig.15 Software interface for the control system of the high altitude pressurized medical emergency vehicle 3;

[0081] In the figure: A. chassis; A01. front drive axle; A02. middle drive axle; A03. rear drive axle; 1. equipment compartment; 2. pressurized compartment; 201. shell; 2011. top wall; 2012. bottom wall; 2013. first side wall; 2014. second side wall; 2015. front wall; 2016. rear wall; 2017. connecting plate; 2018. reinforcing rib; 202. insulation layer; 203. observation window; 204. seat; 205. door; 206. locker; 207. interior panel; 3. pressurized module; 301. pressurized main engine; 302. gas tank; 303. pressure reducing valve ; 304. Emergency pressure relief valve; 305. Safety valve; 4. Oxygen supply module; 401. Oxygen generator; 402. Oxygen cylinder; 5. Medical first aid module; 501. Cerebral hematoma detector; 502. Monitor; 503. Ventilator; 504. First aid kit; 505. First box; 6. Function guarantee module; 601. Outdoor unit; 602. Indoor unit; 603. Ventilation equipment; 604. Generator; 605. Distribution box; 606. Lighting equipment; 607. Camera; 608. Heater; 609. Legs; 7. Control module; 701. PLC host; 702. Touch screen. DETAILED DESCRIPTION

[0082] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0083] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0084] It should be noted that when an element is referred to as being "fixed to", "placed on", "disposed with", "provided with", "set to", or "connected to" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element at the same time.

[0085] It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0086] The utility model provides a high-altitude pressurized medical emergency vehicle, such as Figure 1 As shown, it includes a chassis A, an equipment cabin 1, a pressurized cabin 2, a pressurized module 3, an oxygen supply module 4, a medical first aid module 5 and a functional guarantee module 6.

[0087] like Figure 2 As shown, chassis A includes a frame and a front drive axle A01, a middle drive axle A02 and a rear drive axle A03 fixed under the frame; the frame is used to carry the cab of the ambulance, the equipment compartment 1 and the pressurized compartment 2; the buffer device between the front drive axle A01 and the frame adopts a double wishbone independent suspension and a torsion bar spring; the buffer devices between the middle drive axle A02 and the rear drive axle A03 and the frame both adopt a double wishbone independent suspension and a variable stiffness coil spring.

[0088] The equipment compartment 1 is arranged at the rear side of the cab and has a storage space inside.

[0089] The pressurized cabin 2 is located at the rear side of the equipment cabin 1. Figure 4 As shown, it includes a shell 201, a heat-insulating layer 202 and a moisture-proof layer (not shown in the figure).

[0090] like Figure 3 As shown, the shell 201 is surrounded by metal material to form a closed cavity, and the longitudinal cross-section of the cavity is rectangular.

[0091] like Figure 4 As shown, the thermal insulation layer 202 is made of non-metallic material and is laid on the inner surface of the shell 201 ; the moisture-proof layer is made of non-metallic material and covers the inner surface of the thermal insulation layer 202 .

[0092] The internal pressure of the pressurized cabin 2 is not greater than 0.035 MPa, and is used to provide a pressurized environment for passengers;

[0093] The boost module 3 includes a boost main unit 301 and a gas storage tank 302; Figure 5As shown, the booster main engine 301 and the air storage tank 302 are both arranged in the equipment cabin 1, preferably fixed to the bottom plate of the equipment cabin 1 by screws, and the two are connected by a pipeline; the booster module 3 is used to generate and store compressed air, and transmit the compressed air to the booster cabin 2 through a pipeline.

[0094] The oxygen supply module 4 includes an oxygen concentrator 401 and an oxygen supply terminal; the oxygen concentrators 401 are preferably ≥3 in number and are arranged in the pressurized cabin 2. The oxygen concentrators 401 and the oxygen supply terminal can preferably be stored in a box for easy removal and transportation, and connected to the oxygen supply terminal through a pipeline to supply oxygen to people suffering from hypoxia.

[0095] The medical first aid module 5 is housed in the pressurized cabin 2 and is used for performing medical examination and first aid on the injured and sick.

[0096] The functional guarantee module 6 is arranged in the pressurized cabin 2 and the equipment cabin 1 respectively, and is used to provide guarantee for the power application, environmental control, communication and environmental lighting of the emergency vehicle.

[0097] It should be noted that the thermal insulation layer 202 is preferably made of environmentally friendly rigid flame-retardant polyurethane foam with a density of 40 to 43 kg / m 3 , fire protection grade B1; the main performance parameters of polyurethane are as follows:

[0098] name Density kg / m3 Use temperature ℃ Compressive strength kg / cm2 Water absorption Thermal conductivity W / mK Polyurethane 40-43 -196-180 3.5 ≤3％ ≦0.028

[0099] Polyurethane insulation materials have the following characteristics:

[0100] 1. Low thermal conductivity and low density;

[0101] 2. Small outgassing rate and strong adsorption performance;

[0102] 3. High strength and durability;

[0103] 4. Good oxidation resistance, flame retardancy, stable chemical properties, harmless to human body;

[0104] 5. Low hygroscopicity, strong frost resistance and small expansion coefficient.

[0105] It should be noted that the moisture-proof treatment inside the pressurized cabin 2 is extremely important. Poor moisture-proof treatment can easily cause hidden dangers such as corrosion of the metal structure and reduced thermal insulation efficiency of the thermal insulation layer 202. The utility model is aimed at the actual use conditions of the plateau field supercharged vehicle. The moisture-proof layer preferably adopts the method of spraying elastic polyurea coating on the surface of the thermal insulation layer 202 to form a moisture-proof layer to solve the corrosion and moisture-proof problems inside the pressurized cabin 2. Elastic polyurea coating is a solvent-free, two-component fast-reaction curing high-strength, high-toughness, elastic coating. Component A is an isocyanate semi-prepolymer without solvent, and component B is refined from highly active terminal amino polyether, liquid ammonia chain extender, imported color paste, etc.

[0106] Elastic polyurea coatings have the following advantages:

[0107] 1. It does not contain catalysts and cures quickly. It can be sprayed on any curved, inclined and vertical surfaces without sagging. It gels in 5 seconds and reaches walking strength in 1 minute.

[0108] 2. Two-component, 100% curing content, does not contain any volatile organic compounds (VOC), and is environmentally friendly.

[0109] 3. It is not sensitive to humidity and temperature, and is not affected by ambient temperature and humidity during construction.

[0110] 4. It can be sprayed or poured at a volume ratio of 1:1. The thickness of one construction can range from several millimeters to several centimeters, overcoming the drawbacks of multiple construction in the past.

[0111] 5. Excellent physical and chemical properties, such as tensile strength, elongation, flexibility, wear resistance, aging resistance, corrosion resistance, etc.

[0112] 6. It has good thermal stability, can be used for a long time at 120℃, and can withstand short-term thermal shock at 350℃.

[0113] 7. Various colors and dyes can be added like ordinary paints to make products of different colors.

[0114] 8. The formula system can be adjusted arbitrarily, and the feel ranges from soft rubber (Shore A30) to hard elastomer (D65).

[0115] 9. The prototype has good reproducibility, the coating is continuous and dense, without seams or pinholes, and it is beautiful and practical.

[0116] It should be noted that the oxygen concentrator 401 preferably adopts a portable small oxygen concentrator 401, and the number is ≥ 3. Considering the overall installation space, power source, off-road performance and other multi-dimensional angles, the portable small oxygen concentrator 401 can meet the plateau hypoxia symptoms and emergency oxygen supply requirements during the transportation of the wounded and sick. It is small and light, consumes only electricity and air, and has built-in pulse oxygen supply technology, which achieves 100% utilization of oxygen-rich gas, and the oxygen production is doubled compared to the oxygen concentrator 401 using traditional technology. The oxygen concentrator 401 includes: an oxygen concentrator 401 host, oxygen inhalation accessories, and a charger; among them, the oxygen concentrator 401 main body contains a separator module, a power module, a pulse oxygen supply module 4, a control system, and a modular battery pack; it has the following characteristics:

[0117] 1. It is small and light, and consumes only electricity and air. It can continuously and stably produce 1L / min oxygen-enriched air with a concentration of more than 90% at an altitude range of 0 to 5500m throughout the entire mainland of China. It has a built-in low-temperature battery pack (can be charged in the seat or in the car).

[0118] 2. Built-in pulse oxygen supply technology detects the breathing process through a highly sensitive sensor; at the moment of inhalation, 93% of the rich oxygen is delivered to the nasal cavity and reaches the lungs at the first time, and the rich oxygen prepared during the exhalation period is first stored in the built-in buffer tank for use in the next inhalation.

[0119] 3. Through the improvement of oxygen supply technology that is closely integrated with people's breathing, the oxygen supply effect that traditional oxygen production and supply technology requires 5l / min of oxygen production is achieved with an oxygen production capacity of 1l / min, truly achieving 100% utilization of oxygen-rich gas, which is very suitable for single-person portable use in plateau areas.

[0120] 4. The battery performance can provide continuous and stable power supply at -40℃, and can be replaced and reused. It is easy to charge and the whole machine is light and portable.

[0121] 5. High efficiency and stability. The equipment adopts special high-efficiency adsorbent combined with patented separation technology, which can stably achieve the production of oxygen-rich gas at a concentration of 1L / min and above 90%.

[0122] 6. Lightweight and portable, the whole machine is modular and portable in design. Its weight and volume are superior to imported products under the same technical indicators.

[0123] 7. Cyclic charging: The battery is pluggable and replaceable, can be charged and discharged repeatedly, and can be charged in a charger or in a car.

[0124] It should be noted that the maximum number of people allowed by the plateau pressurized medical emergency vehicle provided by the utility model is 6, and it can be converted into a lying or sitting configuration according to the needs of emergency transportation. It has a 0.05MPa pressurization capacity (which can be controlled in stages), cabin air quality detection and control capabilities, pressurized cabin 2 temperature control capabilities, and wounded treatment and oxygen supply capabilities. The design pressure of the pressurized cabin 2 is ≤0.035MPa; the pressure increase and decompression rate in the pressurized cabin 2: plateau 0.001~0.003MPa / min (adjustable); emergency decompression time: the time from 0.03MPa to 0.001MPa is ≤2.5min.

[0125] It should be noted that the double wishbone independent suspension can increase the contact area between the car tires and the ground, so the car has better stability when driving at high speeds; and because the upper and lower rocker arms of the double wishbone independent suspension have different lengths, the camber angle of the wheel can be automatically changed when the wheel moves up and down, reducing the change in wheel track and reducing tire wear.

[0126] Double wishbone independent suspension refers to a suspension system with two wishbones. This type of suspension has no lateral load, which is conducive to lowering the height of the front of the car. And because this type of suspension can make the area of ​​the car tires contacting the ground larger, it further improves the stability of the car during driving.

[0127] In specific implementation, the shock-absorbing structure of double wishbone independent suspension, torsion bar spring or variable stiffness coil spring between the front, middle and rear drive axles A03 and the vehicle frame can better play the role of shock absorption and buffering, especially in plateau areas with rugged roads, which greatly improves the riding comfort of the occupants in the vehicle. Medical staff can provide first aid for the injured and sick during driving, and can better protect the injured and sick in the vehicle from secondary injuries due to vehicle bumps.

[0128] The equipment cabin 1 provides space for accommodating various types of support equipment, and the pressurized cabin 2 uses a sealed shell 201 to ensure that the pressure in the cabin is stable and does not leak;

[0129] The shell 201 is provided with a heat-insulating layer 202 to maintain the temperature in the cabin and improve the comfort of passengers. The shell 201 is also covered with a moisture-proof layer to improve the comfort of passengers and prevent the equipment in the cabin from being damaged by moisture.

[0130] The ambulance is equipped with a pressurization module 3, which can provide compressed air for the pressurization cabin 2 and make the internal pressure of the pressurization cabin 2 stable and safe; in order to meet the needs of pressurization and stabilization during the transport of injured and sick people on the plateau, the internal pressure of the pressurization cabin 2 is limited to below 0.035MPa. Within this pressure range, the pressurization cabin 2 is relatively safe, so the ambulance can supply high-pressure oxygen while moving; compared with the existing technology, the internal pressure of some plateau pressurized vehicles reaches 0.6MPa~0.8MPa. Under such a high pressure, high-pressure oxygen can only be used when parked. Using it while driving will be dangerous due to sudden situations such as bumps and collisions.

[0131] The oxygen supply module 4 and the medical emergency module 5 provide a variety of medical rescue facilities for the wounded and sick. Compared with the existing booster vehicle without the medical emergency module 5, it can play a role in first aid and stabilization during the evacuation, so that the health and life of outdoor workers are guaranteed;

[0132] Functional support module 6 provides support for the emergency vehicle's power application, environmental control, communication and ambient lighting.

[0133] In one embodiment, if Figure 2 As shown, the front drive axle A01, the middle drive axle A02 and the rear drive axle A03 can all transmit driving force, and the vertical distance between the lowest point of the front drive axle A01, the middle drive axle A02 or the rear drive axle A03 and the ground is ≥420 mm.

[0134] It should be noted that the specific parameters of the selected CTM132 Class II automobile chassis are as follows:

[0135] Serial number Performance parameters Second class chassis 1 Second category chassis curb weight (kg) 9300 2 Axle load distribution (kg) front / middle / rear axle 4900 / 2400 / 2000 3 Allowable total mass of second-class chassis (kg) 16400 4 Maximum allowable axle load (kg) front / middle / rear axle 6500 / 6500 / 6500 5 Second-class chassis center of mass position (X, Y, Z) mm (2052,-10,1040)

[0136] In the specific implementation, chassis A adopts an off-road chassis, preferably a CTM132 Class II automobile chassis with three drive axles, and has better off-road performance; and the lowest point of chassis A is 420mm from the ground, with a larger ground clearance and better passing performance; the comprehensive performance of chassis A is very suitable for driving in plateau areas.

[0137] In the implementation scheme provided by the present utility model, Figure 3 As shown, the shell 201 includes a top wall 2011 , a bottom wall 2012 , a first side wall 2013 , a second side wall 2014 , a front wall 2015 and a rear wall 2016 .

[0138] The left and right edges of the top wall 2011 are fixedly connected to the upper edges of the first side wall 2013 and the second side wall 2014 respectively.

[0139] The front and rear edges of the top wall 2011 are fixedly connected to the upper edges of the front wall 2015 and the rear wall 2016 respectively.

[0140] The left and right edges of the bottom wall 2012 are fixedly connected to the lower edges of the first side wall 2013 and the second side wall 2014 respectively.

[0141] The front and rear edges of the bottom wall 2012 are fixedly connected to the lower edges of the front wall 2015 and the rear wall 2016 respectively.

[0142] The two side edges of the first side wall 2013 , the front wall 2015 , the second side wall 2014 and the rear wall 2016 are fixedly connected in sequence, and are surrounded by the top wall 2011 and the bottom wall 2012 to form the cavity.

[0143] The connection between the top wall 2011 and the first side wall 2013 and the second side wall 2014, and the connection between the bottom wall 2012 and the first side wall 2013 and the second side wall 2014 are fixedly connected by a connecting plate 2017; the angle between the connecting plate 2017 and the horizontal direction is 15° to 75°.

[0144] The inner surface of the shell 201 is also provided with metal reinforcing ribs 2018 that are staggered in transverse and longitudinal directions.

[0145] It should be noted that the shell 201 preferably uses Q345R high-quality carbon structural steel plate, which has good pressure bearing capacity, and its main mechanical properties are shown in the following table;

[0146]

[0147] It should be noted that the connection between the top wall 2011 and the first side wall 2013 and the second side wall 2014, and the connection between the bottom wall 2012 and the first side wall 2013 and the second side wall 2014 are fixedly connected by a connection plate 2017; preferably, the connection plate 2017 is fixed at the corresponding installation position by seamless welding; and the installation angle of the connection plate 2017 is preferably 45° with the horizontal direction;

[0148] It should be noted that the reinforcing ribs 2018 are fixed to the inner surface of the shell 201 by welding; the insulation layer 202 is fixed to the inner surface of the shell 201 by adhesive or rivets in the gap between the reinforcing ribs 2018 and the shell 201; the moisture-proof layer is preferably covered on the inner surface of the insulation layer 202 by spraying; the inner surface of the moisture-proof layer is also covered with an interior panel 207 fixed by rivets.

[0149] In specific implementation, the longitudinal cross-sectional shape of the existing pressurized cabin 2 shell 201 structure is elliptical or rectangular. Although the shell 201 with an elliptical cross-section meets the pressure-bearing characteristics of the pressure vessel, in actual application, due to the curvature inside the cabin, the available space inside the shell 201 is small and it is not convenient to arrange various types of support equipment; and the pressurized cabin 2 shell 201 with a rectangular cross-sectional shape, although the accommodating space is relatively sufficient, the pressure-bearing performance is greatly reduced compared with the elliptical cabin; based on the pressure-bearing finite element analysis of the pressurized cabin 2 shell 201, combined with the protection needs of plateau outdoor workers, the utility model proposes to add a connecting plate 2017 structure with a certain angle at the connection between the top plate, the bottom plate and the first side wall 2013 and the second side wall 2014 of the shell 201 instead of the original direct vertical connection, forming a rectangular cross-sectional shape, so that the pressurized cabin 2 shell 201 proposed by the utility model has a good pressure-bearing capacity, and its internal space can be fully utilized, so as to be equipped with more equipment and provide corresponding protection for outdoor workers.

[0150] In one embodiment of the present invention, Figure 6 , Figure 7 As shown, the oxygen supply module 4 also includes an oxygen cylinder 402 and an oxygen mask; the oxygen cylinder 402 is fixed on the front wall 2015 and the rear wall 2016, preferably fixed on the front wall 2015 and the rear wall 2016 of the pressurized cabin 2 in the form of a bracket, and connected to the oxygen mask through a pipeline; the oxygen mask includes a first-level mask for seriously ill patients and a second-level mask for patients who can breathe independently; the oxygen cylinder 402 and the oxygen mask are used to supply oxygen to patients who need emergency treatment.

[0151] It should be noted that the preferred number of oxygen cylinders 402 is ≥ 3, and the oxygen cylinders 402 and oxygen masks can preferably be stored in the plastic shell 201 for easy transportation and taking; the oxygen cylinders 402 are mainly used to supply oxygen to the wounded and sick, and the oxygen masks can be buckled on the mouths and noses of the wounded and sick, which is particularly convenient for the wounded and sick with limited mobility. Preferably, both the first-level oxygen inhalation and the second-level oxygen inhalation adopt mask-type oxygen inhalation, which is configured to meet the oxygen inhalation needs of 2 people for 5 hours. Each oxygen supply unit includes an oxygen cylinder 402, a pressure reducer, a humidifier bottle, a pipeline, an oxygen inhalation terminal, etc., and the cylinders are easy to replace and oxygenate, which conforms to the usage habits of medical rescue personnel.

[0152] In one embodiment, the first side wall 2013 , the second side wall 2014 and the rear wall 2016 are all provided with observation windows 203 .

[0153] The rear wall 2016 is provided with a hatch 205; the hatch 205 is an inward-opening hatch 205.

[0154] The two sides of the bottom wall 2012 are equipped with row seats 204 ; storage space is formed under the two seats 204 .

[0155] It should be noted that if Figure 7 As shown, the hatch 205 is preferably a micro-pressure self-closing high-strength rectangular thin-shell door; the light-transmitting material of the observation window 203 is preferably tempered ultra-white glass (operating temperature range -70°C to 120°C) with good bending strength and thermal stability; the rear wall 2016 is also fixed with a storage cabinet 206 by screws.

[0156] It should be noted that the hatch 205 has a light structure, and has micro-pressure pre-tightening and self-locking functions. The thin-shell door lock is easy to open and close, and can be opened from both inside and outside. The hatch 205 is an inward opening door. As the pressure in the cabin increases, the sealing performance of the hatch 205 becomes better. The sealing strip of the hatch 205 is made of silicone rubber material with good sealing performance, no leakage, and good anti-aging performance. When the hatch 205 is closed, the sealing strip structure can ensure that the gas in the cabin is not easy to leak when the cabin is pressurized, and can also ensure that external wind and sand cannot enter the cabin. A locking device is set on the hatch 205 to prevent the hatch 205 from being affected by bumps, vibrations and deformation during transportation, which may affect the opening, closing and locking functions of the hatch 205.

[0157] According to the embodiment provided by the utility model, the medical emergency module 5 includes a cerebral hematoma detector 501, a monitor 502, a ventilator 503, a first aid kit 504, anti-shock pants, a thermal blanket, a box, an infusion pump, an aspirator, a life support system, a defibrillator, a pulse oximeter and a shovel stretcher;

[0158] The cerebral hematoma detector 501 is fixed on the front wall 2015 of the pressurized cabin 2, preferably fixed on the front wall 2015 by screws;

[0159] The monitor 502 is preferably a multi-parameter monitor 502, fixed on the first side wall 2013, preferably fixed by screws;

[0160] The ventilator 503 is preferably an emergency ventilator 503, fixed on the first side wall 2013, preferably fixed by screws, and located below the monitor 502;

[0161] The first aid kit 504 is detachably fixed in the storage space, and preferably the first aid kit 504 is detachably fixed to the bottom plate below the seat 204 by a buckle structure;

[0162] The box includes a first box 505 and a second box, which are detachably fixed in the storage spaces on both sides, and preferably the two boxes are detachably fixed to the bottom plate below the seat 204 by a buckle structure; the infusion pump, the aspirator (preferably a portable aspirator) and the life support system (preferably a portable life support system) are all stored in the first box 505; the anti-shock pants, the thermal blanket, the defibrillator (preferably an automatic defibrillator) and the pulse oximeter are all stored in the second box;

[0163] The shovel stretcher (not shown in the figure) is detachably fixed on the first side wall 2013 and the second side wall 2014, and is located above the seat 204; the shovel stretcher is easy to disassemble and assemble, and the structure of the buckles and straps is detachably fixed on the two side walls. It can be carried on the vehicle or not according to different specific rescue tasks, which provides greater flexibility in performing tasks.

[0164] In specific implementation, the plateau pressurized medical emergency vehicle is equipped with a medical module, which makes the emergency vehicle have more medical functions. Compared with the existing pressurized vehicle without a medical emergency module 5, it can play a role in first aid and rescue during the transport, so that the health and life of outdoor workers are guaranteed.

[0165] In the implementation scheme provided by the present utility model, Figure 5 As shown, the boosting module 3 also includes a pressure regulating valve, a pressure reducing valve 303, an emergency pressure relief valve 304 and a safety valve 305;

[0166] The pressure regulating valve is installed at the gas outlet of the gas storage tank 302 (not shown in the figure), preferably connected to the gas outlet of the gas storage tank 302 by threading, and can supply gas to the pressurized cabin 2 for pressurization according to the set pressure value and pressurization rate;

[0167] The pressure reducing valve 303 is arranged inside the pressurized cabin 2, preferably embedded and installed on the first side wall 2013 or the second side wall 2014 of the pressurized cabin 2, and communicated with the outside through a pipeline; the pressure reducing valve 303 is used to discharge the air inside the pressurized cabin 2 to the outside at a set pressure reducing rate;

[0168] The emergency pressure relief valve 304 is arranged on the first side wall 2013, the second side wall 2014 or the rear wall 2016, and extends through the first side wall 2013, the second side wall 2014 or the rear wall 2016 to the outside, and is used to quickly discharge the air in the pressurized cabin 2 to the outside in an emergency;

[0169] The safety valve 305 is arranged on the first side wall 2013, the second side wall 2014 or the rear wall 2016, and extends to the outside through the first side wall 2013, the second side wall 2014 or the rear wall 2016, and is used to limit the internal pressure of the pressurized cabin 2 to below 0.035 MPa.

[0170] It should be noted that the main function of the pressurization module 3 is to meet the requirements of pressurization, pressure stabilization, ventilation, and decompression (including emergency decompression) of the plateau pressurized medical emergency vehicle. Combined with the overall installation space, power source, off-road performance and other factors of the pressurized cabin 2, the pressurized host 301 preferably uses an air compressor as the pressurized ventilation air source, and the air is sent to the pressurized cabin 2 after filtering and drying. During the pressurization process, the air compressor is started to work, and the compressed air enters the air storage tank 302 after cold drying. When the set pressure is reached, the air compressor is suspended. After the compressed air is dried and filtered, the valve opening of the pressure regulating valve is adjusted to pressurize the cabin at the set pressurization rate. When the pressure of the air storage tank 302 is lower than 0.4MPa, the air compressor is started to maintain the pressure of the air storage tank 302. During the decompression process, the pressure reducing valve 303 is opened and adjusted to decompress at the set decompression rate. The gas in the pressurized cabin 2 is discharged out of the cabin through the pipeline to complete the decompression process. An emergency pressure relief valve 304 is provided inside the pressurized cabin 2, preferably a mechanical quick-open emergency pressure relief valve 304, which can be opened both inside and outside the cabin in an emergency. After opening, the pressure inside the pressurized cabin 2 drops from 0.03MPa to 0.001MPa in no more than 2.5 minutes. Safety valve 305, preferably two safety valves 305 are installed. When the pressure inside the pressurized cabin 2 reaches the set value (0.035MPa), the safety valve 305 automatically opens to exhaust air to the outside; the above valves all use valve structures commonly used in the prior art.

[0171] It should be noted that the internal pressure of the pressurized cabin 2 can be adjusted by the pressure regulating valve; the safety valve 305 can limit the maximum pressure in the pressurized cabin 2. When the pressure is higher than 0.035MPa, the safety valve 305 opens to release the pressure in the pressurized cabin 2, so that the internal pressure of the pressurized cabin 2 is always maintained below 0.035Mpa.

[0172] In a specific implementation, the pressurization module 3 is provided with a pressure regulating valve, a pressure reducing valve 303 , an emergency pressure relief valve 304 and a safety valve 305 ; the pressure in the pressurization cabin 2 can be controlled, and the pressure in the pressurization cabin 2 can be ensured to be safe and stable.

[0173] In one embodiment, if Figure 5 , Figure 6 As shown, the functional guarantee module 6 includes air conditioning, ventilation equipment 603, power supply and distribution equipment, lighting equipment 606, communication equipment, monitoring equipment, heater 608 and leveling mechanism;

[0174] The air conditioner adopts a split structure, including an outdoor unit 601 installed outside the equipment compartment 1 and an indoor unit 602 installed inside the front wall 2015; the outdoor unit 601 is connected to the indoor unit 602 through a pipeline;

[0175] The ventilation device 603 is fixedly mounted on the top wall 2011, and its air outlet extends from the inside of the top wall 2011 to the outside;

[0176] The power supply and distribution equipment includes a generator 604 installed in the equipment cabin 1 and a distribution box 605 fixed to the front wall 2015 of the equipment cabin 1;

[0177] The lighting device 606 includes an LED lighting lamp, which is embedded in the top wall 2011 of the pressurized cabin 2;

[0178] The communication equipment includes a handheld intercom, which is respectively arranged in the cab and the pressurized cabin 2, and is used for communication between the cab and the pressurized cabin 2;

[0179] The monitoring device includes two cameras 607; the two cameras 607 are correspondingly arranged at two diagonal positions of the top wall 2011 of the pressurized cabin 2;

[0180] The heater 608 is arranged in the equipment compartment 1, and its air outlet is connected to the pressurized compartment 2 through a pipeline;

[0181] The leveling mechanism includes a support leg 609 and a leveling control module 7; the support leg 609 is installed on both sides of the frame, and the raising and lowering of the support leg 609 is controlled by the leveling control module 7; the leveling control module 7 is arranged in the cab, and is used to determine the concave and convex conditions of the terrain where the ambulance is parked, and send a raising or lowering instruction to the support leg 609.

[0182] It should be noted that the air conditioner is preferably a split type air conditioner; the environmental limit temperature of the plateau pressurized medical emergency vehicle is -40℃~50℃, and the environmental temperature control range in the pressurized cabin 2 is 16℃~28℃, so a set of cooling and heating air conditioning system can be configured.

[0183] It should be noted that generator 604 preferably adopts a 20kW plateau silent diesel generator 604. Generator 604 adopts a two-cylinder air-cooled four-stroke diesel engine, modified with an adaptive plateau oil pump, oil supply and air inlet and outlet systems, equipped with a pure copper motor, built-in cylinder preheating, oil preheating, fuel preheating, and low-temperature starting battery. It can be used normally at an altitude of 5,000 meters on the plateau and a low temperature of -40°C.

[0184] It should be noted that, according to the mobility and operating environment of the plateau pressurized medical emergency vehicle, the distribution box 605 preferably adopts a wall-mounted standard explosion-proof distribution box 605 fixed to the front wall 2015 of the equipment cabin 1 by screws or brackets, which can distribute electrical energy. The distribution box 605 panel is equipped with a power indicator light, a voltmeter, an ammeter, a power switch, and various load circuit breakers.

[0185] It should be noted that the lighting equipment 606 preferably adopts a new type of LED cold light source for external lighting in accordance with the requirements that the average illumination in the pressurized cabin 2 should be no less than 200 lux and the illumination unevenness should be no more than 60%.

[0186] It should be noted that the camera 607 is preferably fixed at the above-mentioned corresponding position by screws, and a hemispherical camera 607 is preferably used to realize global real-time monitoring in the pressurized cabin 2, and has the functions of video and recording.

[0187] It should be noted that if Figure 2 As shown, the legs 609 of the leveling mechanism preferably adopt electric cylinder legs 609, or hydraulic legs 609, preferably four legs 609 are fixed to the left and right sides of the frame by screws respectively; the motor driving the legs 609 preferably adopts a linear asynchronous motor structure, which is connected to the leveling control module 7 through a cable; the leveling control module 7 includes a level sensor and a leveling PLC (Programmable Logic Controller) Controller acronym, the full Chinese name is Programmable Logic Controller), the leveling PLC can also be replaced by a circuit including at least one processor, or a circuit including at least one single-chip microcomputer, or a combination of multiple circuits or chips, as long as the corresponding functions can be realized; it is understandable that for those skilled in the art, the control circuit can also be a common circuit composed of amplifiers, comparators, triodes, MOS tubes, etc. to realize the corresponding functions in a purely hardware way; the level sensor is used to collect the inclination angle of the vehicle body after the vehicle is parked, and transmit the information to the leveling PLC; the leveling PLC receives the information and processes it, and after analysis and judgment, sends instructions to each motor; after receiving the instructions, each motor begins to rise or lower according to its own instructions, thereby adjusting the vehicle to a horizontal state.

[0188] In specific implementation, the support module provides personnel with protection in terms of environmental quality, power application, lighting, communication and security, making the plateau booster medical emergency vehicle have more functions.

[0189] In one embodiment, the pressure regulating valve, pressure reducing valve 303, emergency pressure relief valve 304 and ventilation equipment 603 are all provided with manual control devices, preferably by installing a handle or manual switch at the switch or adjustment of the above-mentioned equipment, or other manually operated structures known to those skilled in the art may be adopted, as long as such structure can meet the requirements of manually opening or closing the above-mentioned valves.

[0190] In a specific implementation, a manual control device is added to the above-mentioned equipment, so that in an emergency situation, such as power failure, danger can be avoided through manual operation.

[0191] In the implementation scheme provided by the present utility model, Figure 6 As shown, the ambulance further includes a control module 7; the control module 7 includes a PLC host 701, a touch screen 702, a speaker, an oxygen concentration sensor, a temperature and humidity sensor, a pressure sensor, and a carbon dioxide concentration sensor;

[0192] The PLC host 701 is integrated with the touch screen 702 and the speaker, and is fixed on the front wall 2015 of the pressurized cabin 2, preferably by screws; the PLC host 701 is electrically connected to the pressure regulating valve, the pressure reducing valve 303 and the ventilation device 603 through cables;

[0193] The oxygen concentration sensor, temperature and humidity sensor, pressure sensor and carbon dioxide concentration sensor are all arranged inside the pressurized cabin 2 and are electrically connected to the PLC host 701 through cables;

[0194] The control module 7 is used to realize automatic control of pressure regulation and oxygen concentration regulation in the pressurized cabin 2, as well as monitoring of temperature, humidity and carbon dioxide concentration inside the pressurized cabin 2, and can send an alarm signal through the speaker when the pressure, oxygen concentration or carbon dioxide concentration in the pressurized cabin 2 exceeds a limit value.

[0195] It should be noted that the control module 7 may also include a PLC host, a transmitter, an intelligent instrument, a touch screen 702, an electrical valve, etc. The automatic control system including the PLC host automatically detects and controls the working state of the system, so that the high-altitude booster medical emergency vehicle can automatically control the pressurization, voltage stabilization, pressure reduction and O2 and CO2 concentrations according to the settings.

[0196] It should be noted that the PLC circuit in the PLC host can also be replaced by a circuit including at least one processor, or a circuit including at least one single-chip microcomputer, or a combination of multiple circuits or chips, as long as the corresponding functions can be achieved; it is understandable that for those skilled in the art, the control circuit can also be a common circuit composed of amplifiers, comparators, transistors, MOS tubes, etc. to achieve the corresponding functions in a purely hardware manner.

[0197] It should be noted that the control system of the utility model adopts a PID control circuit, which is embedded in the PLC host. The system principle is as follows Figure 8 As shown; the system control simulation principle is as follows Fig. 9 As shown; the cabin pressure is automatically adjusted through the control system, and the pressure control curve is as follows Fig.10 As shown; during the pressure regulation process, the pressure control process of the control system is as follows Fig.11 As shown; during the oxygen concentration adjustment process, the oxygen concentration control process of the control system is as follows Fig.12 As shown; the control system can realize the direct display and adjustment of pressure value, oxygen concentration, etc. on the touch screen 702 through software, and the software interface is as follows Figure 13 to Figure 15 shown.

[0198] In specific implementation, the control module 7 can automatically realize pressure regulation, pressure stabilization, pressure reduction, and monitoring of oxygen concentration and carbon dioxide concentration in the pressurized cabin 2, saving manpower operation and enabling precise control.

[0199] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0200] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-altitude pressurized medical emergency vehicle, characterized in that: It includes chassis, equipment cabin, pressurized cabin, pressurized module, oxygen supply module, medical emergency module and functional support module; The chassis includes a frame and a front drive axle, a middle drive axle and a rear drive axle fixed below the frame; the frame is used to carry the cab of the emergency vehicle, the equipment compartment and the pressurized compartment; a double wishbone independent suspension and a buffer device with a torsion bar spring structure are used between the front drive axle and the frame; a double wishbone independent suspension and a buffer device with a variable stiffness coil spring structure are used between the middle drive axle and the rear drive axle and the frame; The equipment cabin is arranged at the rear side of the cab and has a storage space inside; The pressurized cabin is located at the rear side of the equipment cabin and includes a shell, a heat-insulating layer and a moisture-proof layer; The shell is surrounded by metal material to form a closed cavity, and the longitudinal cross-section of the cavity is rectangular; The thermal insulation layer is a non-metallic material and is laid on the inner surface of the shell; The moisture-proof layer is a non-metallic material and covers the inner surface of the thermal insulation layer; The internal pressure of the pressurized cabin is no more than 0.035 MPa, which is used to provide a pressurized environment for passengers; The booster module includes a booster main engine and an air storage tank; the booster main engine and the air storage tank are both arranged in the equipment cabin and connected by a pipeline; the booster module is used to generate and store compressed air, and transmit the compressed air to the booster cabin through a pipeline; The oxygen supply module includes an oxygen concentrator and an oxygen supply terminal; the oxygen concentrator is arranged in the pressurized cabin and connected to the oxygen supply terminal through a pipeline, so as to supply oxygen to persons suffering from hypoxia; The medical emergency module is stored in the pressurized cabin and is used to perform medical examination and emergency treatment on the injured and sick; The functional support modules are respectively arranged in the pressurized cabin and the equipment cabin, and are used to provide support for the power application, environmental control, communication, space lighting and safety control of the ambulance.

2. The plateau pressurized medical emergency vehicle according to claim 1, characterized in that: The front drive axle, the middle drive axle and the rear drive axle can all transmit driving force, and the vertical distance between the lowest point of the front drive axle, the middle drive axle or the rear drive axle and the ground is ≥420mm.

3. The plateau pressurized medical emergency vehicle according to claim 1, characterized in that: The housing comprises a top wall, a bottom wall, a first side wall, a second side wall, a front wall and a rear wall; The left and right edges of the top wall are fixedly connected to the upper edges of the first side wall and the second side wall respectively; The front and rear edges of the top wall are fixedly connected to the upper edges of the front wall and the rear wall respectively; The left and right edges of the bottom wall are fixedly connected to the lower edges of the first side wall and the second side wall respectively; The front and rear edges of the bottom wall are fixedly connected to the lower edges of the front wall and the rear wall respectively; The edges of both sides of the first side wall, the front wall, the second side wall and the rear wall are fixedly connected in sequence, and are surrounded by the top wall and the bottom wall to form the cavity; The connection between the top wall and the first side wall and the second side wall, and the connection between the bottom wall and the first side wall and the second side wall are fixedly connected by a connecting plate; the angle between the connecting plate and the horizontal direction is 15° to 75°; The inner surface of the shell is also provided with transversely and longitudinally staggered metal reinforcing ribs.

4. The plateau pressurized medical emergency vehicle according to claim 3, characterized in that: The oxygen supply module also includes an oxygen cylinder and an oxygen mask; the oxygen cylinder is fixed on the front wall and the rear wall, and is connected to the oxygen mask through a pipeline; the oxygen mask includes a first-level mask for seriously ill patients and a second-level mask for patients who can breathe independently; the oxygen cylinder and the oxygen mask are used to supply oxygen to patients who need emergency treatment.

5. The plateau pressurized medical emergency vehicle according to claim 4, characterized in that: The first side wall, the second side wall and the rear wall are all provided with observation windows; The rear wall is provided with a door; the door is an inward opening door; Rows of seats are installed on both sides of the bottom wall; storage space is formed under the two seats.

6. The plateau pressurized medical emergency vehicle according to claim 5, characterized in that: The medical emergency module includes a cerebral hematoma detector, a monitor, a ventilator, a first aid kit, anti-shock pants, a thermal blanket, a box, an infusion pump, an aspirator, a life support system, a defibrillator, a pulse oximeter and a shovel stretcher; The cerebral hematoma detector is fixed on the front wall of the pressurized cabin; The monitor is fixed on the first side wall; The ventilator is fixed on the first side wall and is located below the monitor; The first aid kit is detachably fixed in the storage space; The box body includes a first box body and a second box body, which are detachably fixed in the storage spaces on both sides; the infusion pump, the suction device and the life support system are all stored in the first box body; the anti-shock pants, the thermal blanket, the defibrillator and the pulse oximeter are all stored in the second box body The scoop-type stretcher is detachably fixed to the first side wall and the second side wall and is located above the seat.

7. The plateau pressurized medical emergency vehicle according to claim 4, characterized in that: The boosting module also includes a pressure regulating valve, a pressure reducing valve, an emergency pressure relief valve and a safety valve; The pressure regulating valve is installed at the gas outlet of the gas storage tank, and can supply gas to the pressurized cabin for pressurization according to the set pressure value and pressurization rate; The pressure reducing valve is arranged inside the pressurized cabin and is connected to the outside through a pipeline; the pressure reducing valve is used to discharge the air inside the pressurized cabin to the outside at a set pressure reducing rate; The emergency pressure relief valve is arranged on the first side wall, the second side wall or the rear wall, and extends through the first side wall, the second side wall or the rear wall to the outside, and is used to quickly discharge the air in the pressurized cabin to the outside in an emergency; The safety valve is arranged on the first side wall, the second side wall or the rear wall, and extends through the first side wall, the second side wall or the rear wall to the outside, and is used to limit the internal pressure of the pressurized cabin to below 0.035MPa.

8. The plateau pressurized medical emergency vehicle according to claim 7, characterized in that: The functional guarantee module includes air conditioning, ventilation equipment, power supply and distribution equipment, lighting equipment, communication equipment, monitoring equipment, heater and leveling mechanism; The air conditioner adopts a split structure, including an outdoor unit installed outside the equipment compartment and an indoor unit installed inside the front wall; the outdoor unit is connected to the indoor unit through a pipeline; The ventilation device is fixedly mounted on the top wall, and its air outlet extends from the inside of the top wall to the outside; The power supply and distribution equipment includes a generator installed in the equipment compartment and a distribution box fixed to the front wall of the equipment compartment; The lighting device includes an LED lighting lamp embedded in the top wall of the pressurized cabin; The communication equipment includes a handheld intercom, which is respectively arranged in the cab and the pressurized cabin and is used for communication between personnel in the cab and the pressurized cabin; The monitoring device includes two cameras; the two cameras are arranged at two diagonal positions of the top wall of the pressurized cabin respectively; The heater is arranged in the equipment compartment, and its air outlet is connected to the pressurized compartment through a pipeline; The leveling mechanism includes outriggers and a leveling control module; the outriggers are mounted on both sides of the frame, and the raising and lowering of the outriggers are controlled by the leveling control module; the leveling control module is arranged in the cab, and is used to determine the concave and convex conditions of the terrain where the ambulance is parked, and send raising or lowering instructions to the outriggers.

9. The plateau pressurized medical emergency vehicle according to claim 8, characterized in that: The pressure regulating valve, pressure reducing valve, emergency pressure relief valve and ventilation equipment are all provided with manual control devices.

10. The plateau pressurized medical emergency vehicle according to claim 9, characterized in that: The emergency vehicle also includes a control module; the control module includes a PLC host, a touch screen, a speaker, an oxygen concentration sensor, a temperature and humidity sensor, a pressure sensor, and a carbon dioxide concentration sensor; The PLC host is integrated with the touch screen and the speaker and fixed on the front wall of the pressurized cabin; the PLC host is electrically connected to the pressure regulating valve, the pressure reducing valve and the ventilation equipment through cables; The oxygen concentration sensor, temperature and humidity sensor, pressure sensor and carbon dioxide concentration sensor are all arranged inside the pressurized cabin and are electrically connected to the PLC host through cables; The control module is used to realize automatic control of pressure regulation and oxygen concentration regulation in the pressurized cabin, as well as monitoring of temperature, humidity and carbon dioxide concentration inside the pressurized cabin, and can send an alarm signal through the speaker when the pressure, oxygen concentration or carbon dioxide concentration in the pressurized cabin exceeds a limit value.

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