Multi-functional dead body transport vehicle

Abstract

The application discloses a multifunctional corpse transport vehicle, which comprises a storage box fixedly arranged in the inside of the transport vehicle, an expansion box arranged on one side of the storage box, a driving lifting piece arranged in the inside of the transport vehicle and drivingly connected with the expansion box, a gas conveying piece arranged at one end of the storage box, and a control unit arranged on the transport vehicle and electrically connected with the driving lifting piece and the gas conveying piece. The multifunctional corpse transport vehicle has the advantages that the expansion box body structure arranged in the inside of the transport vehicle is telescopic, the driving lifting piece is matched to realize the volume switching of the storage box and the expansion box, the gas conveying piece is linked to the control unit, and the volume ratio type time-sharing air supply regulation mode is adopted, so that the problems of the fixed volume of the traditional corpse transport vehicle, the incapability of simultaneous transfer of multiple corpses, and the incapability of the fixed air supply mode to adapt to the refrigeration of multiple spaces with different sizes are solved, the equipment adaptability and the transfer operation efficiency are improved, and the needs of users are met.

Description

Technical Field

[0001] This invention relates to the field of transportation technology, and in particular to a multi-functional vehicle for transporting remains. Background Technology

[0002] Body transport vehicles are core specialized equipment in the funeral service system, mainly used for the transfer of remains in hospitals, funeral homes, accident scenes, and other similar settings. Existing multi-functional body transport vehicles continuously output low-temperature cooling gas through the vehicle's air conditioning system throughout the transportation process, maintaining a constant temperature in the body storage space inside the vehicle. This effectively inhibits bacterial growth, delays decomposition, and ensures the maximum preservation of the remains' appearance and condition.

[0003] Currently, most body transport vehicles on the market adopt a fixed-volume single-compartment integrated structure, which can only accommodate and transport one body per transport mission. However, in special emergency scenarios such as public health emergencies, major natural disasters, and mass safety accidents, multiple bodies may need to be transferred in a short period of time. Existing fixed single-compartment body transport vehicles cannot achieve simultaneous transfer of multiple bodies in the same vehicle, resulting in low body transfer efficiency. At the same time, the air conditioning system of traditional body transport vehicles adopts a fixed air supply path and constant air supply mode, which cannot be adjusted according to different number of bodies to be transferred, thus having limitations.

[0004] The reason for this problem is that the existing equipment adopts an integrated fixed compartment design, which cannot flexibly expand the storage space according to the number of bodies being transported, resulting in insufficient transport capacity in multi-body transfer scenarios. In addition, the traditional air supply system adopts a straight-through fixed air duct structure, with no diversion or time-sharing control components in the air duct, and the air supply mode is singular, which cannot meet the operational standards for simultaneous low-temperature preservation of multiple bodies, thus having limitations. Summary of the Invention

[0005] The purpose of this invention is to provide a multi-functional vehicle for transporting remains, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional body transport vehicle, comprising a transport vehicle, a storage box, an expansion box, a drive lifting component, an air supply component, and a control unit; The storage box is fixedly installed inside the transport vehicle; The expansion box is located on one side of the storage box, and the storage box is connected to the expansion box; The drive lifting component is installed inside the transport vehicle and is driven to the expansion box. The drive lifting component is used to drive the expansion box to move toward or away from the storage box, thereby realizing the storage and expansion of the expansion box. The gas supply component is located at one end of the storage box and is connected to both the storage box and the expansion box. The gas supply component is used to blow the cooling gas generated by the air conditioner inside the transport vehicle into the storage box and the expansion box. The control unit is mounted on the transport vehicle and is electrically connected to the drive lifting component and the air supply component. The control unit is used to control the air supply component to supply air to the storage box and the expansion box in a time-sharing manner when it detects that the expansion box has switched from the storage state to the expansion state, so as to keep the equivalent air exchange rate in the two independent spaces consistent.

[0007] Preferably, the driving lifting component includes a support rod, a push-pull cylinder, and a guide groove: The support rod is fixedly installed at the bottom of the expansion box, and the bottom of the support rod abuts against the transport vehicle. A sealing strip is installed at the bottom of the expansion box, and the sealing strip fits tightly against the transport vehicle. The push-pull cylinder is detachably assembled inside the transport vehicle, and the output shaft of the push-pull cylinder is fixedly connected to the support rod; The guide groove is located inside the transport vehicle, and the support rod is slidably connected inside the guide groove.

[0008] Preferably, the driving lifting component further includes a pushing cylinder, a movable base plate, and a mounting plate: The push cylinder is located at both ends of the push-pull cylinder; The movable base plate is positioned above the push cylinder. The movable base plate is L-shaped and its outer surface is wrapped with a sealing strip. The sealing strip is tightly fitted to the inner wall of the storage box. The mounting plate is fixedly installed on the bottom of the movable base plate, and the output shaft of the push cylinder is fixedly assembled with the mounting plate.

[0009] Preferably, the driving lifting component further includes a guide post and a limiting strip: The guide post is fixedly installed at the bottom of the mounting plate, and the guide post is slidably connected inside the push cylinder; The two sets of limiting strips are respectively fixedly installed on the movable base plate and the expansion box.

[0010] Preferably, the gas delivery component includes a receiving cavity, a gas delivery pipe, and a gas supply pipe: The accommodating cavity is located inside the transport vehicle; The gas supply pipe is installed at the air conditioner outlet and is connected to the storage box; The gas delivery pipe is fixedly installed on one side of the gas transmission pipe, and the gas delivery pipe is connected to the gas transmission pipe.

[0011] Preferably, the gas delivery component further includes a solenoid valve, a bellows, and a special-shaped pipe: The two sets of solenoid valves are respectively installed on the accommodating cavity and the gas delivery pipe. By controlling the opening and closing of the solenoid valves, the direction of the cooling airflow can be controlled. The solenoid valves are electrically connected to the control unit. The corrugated pipe is fixedly installed on one side of the air supply pipe; The shaped tube is fixedly installed on one side of the corrugated pipe, and the shaped tube is connected to the expansion box.

[0012] Preferably, the gas conveying component further includes a groove and a slider: The groove is formed inside the accommodating cavity; The slider is fixedly installed on the outer surface of the shaped tube, and the slider is slidably connected inside the groove.

[0013] Preferably, the storage box has a door hinged to its end.

[0014] Preferably, an accordion-style protective cover is provided between the storage box and the expansion box, and the accordion-style protective cover is fixedly connected to the storage box and the expansion box respectively.

[0015] Preferably, the control unit takes the following specific steps: During the expansion box deployment process, the operating parameters of the driving lifting component are collected in real time, and the independent space volume and air intake resistance formed by the expansion box are estimated based on the operating parameters. Based on the volume ratio of the storage box and the expansion box, determine the time allocation ratio of the air supply component to deliver air to the two spaces within a unit cycle. The solenoid valves in the air delivery system are alternately activated according to a time-sharing ratio to achieve time-sharing air delivery between the storage box and the expansion box. When the expansion box is in the storage state, the control air supply component 24 only supplies air to the storage box 2.

[0016] The technical effects and advantages of this invention are as follows: 1. This application solves the problems of fixed volume in traditional body transport vehicles, which cannot transport multiple bodies simultaneously, and the fixed air supply mode cannot adapt to the different cooling needs of multiple spaces, by setting up a retractable expansion compartment structure inside the transport vehicle and using a volume ratio time-sharing air supply control mode.

[0017] 2. In this application, the expansion box is fully retracted under normal conditions. The equipment is a standard single-compartment structure, which is suitable for routine funeral transportation operations. In special emergency scenarios such as major disasters and mass accidents, the expansion box can be quickly deployed to form two independent body storage spaces, enabling the simultaneous transportation of multiple bodies in the same vehicle. This eliminates the need to allocate multiple transportation equipment, reduces the consumption of manpower and material resources, makes up for the shortcomings of traditional equipment in emergency operation capabilities, and meets the needs of users.

[0018] 3. This application identifies the expansion status and space parameters of the compartments in real time, dynamically allocates the air supply time according to the volume ratio of the storage box and the expansion box, and achieves time-sharing balanced air supply in the dual spaces through the alternating conduction of solenoid valves. At the same time, it is combined with a multi-seal structure design to prevent cold air leakage and dust intrusion, ensuring the stability of the low-temperature environment in the multi-compartment compartments and meeting the needs of users. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the interior of the storage box and expansion box of the present invention; Figure 3 This is a schematic diagram of the push-pull cylinder of the present invention; Figure 4 This is a schematic diagram of the mounting plate of the present invention; Figure 5 This is a schematic diagram of the support rod of the present invention; Figure 6 This is a schematic diagram of the gas conveying component of the present invention; Figure 7 This is a schematic diagram of the bellows and slider of the present invention; Figure 8 This is the overall control flowchart of the system of the present invention; Figure 9 This is a schematic diagram of the core logic steps of the control unit of the present invention.

[0020] In the diagram: 1. Transport vehicle; 2. Storage box; 22. Expansion box; 23. Drive lifting component; 231. Support rod; 232. Push-pull cylinder; 233. Guide groove; 234. Push cylinder; 235. Movable base plate; 236. Mounting plate; 237. Guide column; 238. Limiting strip; 24. Air supply component; 241. Receptacle; 242. Air supply pipe; 243. Air delivery pipe; 244. Solenoid valve; 245. Corrugated pipe; 246. Special-shaped pipe; 247. Slide groove; 248. Sliding block; 25. Box door; 26. Bellows-style protective cover. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This invention provides, for example Figures 1 to 2 The multi-functional body transport vehicle shown includes a transport vehicle 1, a storage box 2, an expansion box 22, a drive lifting component 23, an air supply component 24, and a control unit; Storage box 2 is fixedly installed inside transport vehicle 1; The expansion box 22 is located on one side of the storage box 2, and the storage box 2 is connected to the expansion box 22; The drive lifting component 23 is installed inside the transport vehicle 1. The drive lifting component 23 is driven to connect with the expansion box 22. The drive lifting component 23 is used to drive the expansion box 22 to move toward or away from the storage box 2, thereby realizing the storage and expansion of the expansion box 22. The air supply component 24 is located at one end of the storage box 2. The air supply component 24 is connected to the storage box 2 and the expansion box 22 respectively. The air supply component 24 is used to blow the cooling gas generated by the air conditioner inside the transport vehicle 1 into the storage box 2 and the expansion box 22. The control unit is installed on the transport vehicle 1, and the control unit is electrically connected to the drive lifting component 23 and the air supply component 24; The control unit is used to control the air supply component 24 to supply air to the storage box 2 and the expansion box 22 in a time-sharing manner when it detects that the expansion box 22 has switched from the storage state to the expansion state, so as to keep the equivalent air exchange rate in the two independent spaces consistent.

[0023] Example 1: In this example, during routine single body transport operations, the expansion box 22 is in a closed and fitted state. The control unit detects the expansion and storage signal and controls only the solenoid valve 244 corresponding to the storage box 2 to open. The air supply passage of the expansion box 22 is closed, and the cold air from the vehicle air conditioner is directly sent into the storage box 2 through the air supply pipe 242 to complete the single compartment constant temperature cooling and meet the daily routine operation requirements.

[0024] During emergency multi-body transfer operations, the operator triggers an expansion command through the control unit, activating the push-pull cylinder 232. This drives the support rod 231 to slide along the guide groove 233, moving the expansion box 22 away from the storage box 2 to complete the expansion. Simultaneously, the push cylinder 234 drives the movable base plate 235 to rise and reset, separating two independent transfer spaces. During the expansion process, the control unit collects parameters such as the extension and retraction stroke and running resistance of the push-pull cylinder 232 in real time, accurately estimating the spatial volume and air intake resistance of the expansion box 22. Combined with the preset standard volume parameters of the storage box 2, the volume ratio of the two chambers is calculated, and then the time allocation ratio within a unit air supply cycle is matched.

[0025] Subsequently, the control unit alternately controls the opening and closing of the two sets of solenoid valves 244 according to the time ratio to achieve time-sharing air supply. By dynamically distributing the air supply to compensate for the differences in air exchange caused by different volumes and different air intake resistance, the equivalent air exchange rate of the two independent spaces is kept consistent, ensuring uniform temperature and synchronous cooling effect in the dual chambers, and adapting to the needs of simultaneous low-temperature transfer of multiple remains.

[0026] This invention provides, for example Figures 3 to 7The multi-functional body transport vehicle shown includes a transport vehicle 1, a storage box 2, an expansion box 22, a drive lifting component 23, an air supply component 24, and a control unit; Storage box 2 is fixedly installed inside transport vehicle 1; The expansion box 22 is located on one side of the storage box 2, and the storage box 2 is connected to the expansion box 22; The drive lifting component 23 is installed inside the transport vehicle 1. The drive lifting component 23 is driven to connect with the expansion box 22. The drive lifting component 23 is used to drive the expansion box 22 to move toward or away from the storage box 2, thereby realizing the storage and expansion of the expansion box 22. The air supply component 24 is located at one end of the storage box 2. The air supply component 24 is connected to the storage box 2 and the expansion box 22 respectively. The air supply component 24 is used to blow the cooling gas generated by the air conditioner inside the transport vehicle 1 into the storage box 2 and the expansion box 22. The control unit is installed on the transport vehicle 1, and the control unit is electrically connected to the drive lifting component 23 and the air supply component 24; The control unit is used to control the air supply component 24 to supply air to the storage box 2 and the expansion box 22 in a time-sharing manner when it detects that the expansion box 22 has switched from the storage state to the expansion state, so as to keep the equivalent air exchange rate in the two independent spaces consistent.

[0027] The drive lifting component 23 includes a support rod 231, a push-pull cylinder 232, and a guide groove 233. The support rod 231 is fixedly installed at the bottom of the expansion box 22. The bottom of the support rod 231 abuts against the transport vehicle 1. A sealing strip is installed at the bottom of the expansion box 22. The sealing strip fits tightly against the transport vehicle 1. The push-pull cylinder 232 is detachably mounted inside the transport vehicle 1, and the output shaft of the push-pull cylinder 232 is fixedly connected to the support rod 231; The guide groove 233 is formed inside the transport vehicle 1, and the support rod 231 is slidably connected inside the guide groove 233.

[0028] The drive lifting component 23 also includes a pushing cylinder 234, a movable base plate 235, and a mounting plate 236. The push cylinder 234 is located at both ends of the push-pull cylinder 232; The movable base plate 235 is located above the push cylinder 234. The movable base plate 235 is L-shaped and its outer surface is wrapped with a sealing strip. The sealing strip is tightly fitted to the inner wall of the storage box 2. Mounting plate 236 is fixedly installed on the bottom of movable base plate 235, and the output shaft of push cylinder 234 is fixedly assembled with mounting plate 236.

[0029] The drive lifting component 23 also includes a guide post 237 and a limiting strip 238: The guide post 237 is fixedly installed at the bottom of the mounting plate 236, and the guide post 237 is slidably connected to the inside of the push cylinder 234; Two sets of limit strips 238 are fixedly installed on the movable base plate 235 and the expansion box 22, respectively.

[0030] The gas delivery component 24 includes a receiving cavity 241, a gas delivery pipe 242, and a gas supply pipe 243. The accommodating cavity 241 is located inside the transport vehicle 1; The gas supply pipe 242 is installed at the air conditioner outlet and is connected to the storage box 2; The gas supply pipe 243 is fixedly installed on one side of the gas transmission pipe 242, and the gas supply pipe 243 is connected to the gas transmission pipe 242.

[0031] The gas delivery unit 24 also includes a solenoid valve 244, a bellows 245, and a special-shaped pipe 246. Two sets of solenoid valves 244 are respectively installed on the accommodating cavity 241 and the gas supply pipe 242. By controlling the opening and closing of the solenoid valves 244, the flow direction of the cooling air can be controlled. The solenoid valves 244 are electrically connected to the control unit. The corrugated pipe 245 is fixedly installed on one side of the air supply pipe 243; The shaped tube 246 is fixedly installed on one side of the corrugated tube 245, and the shaped tube 246 is connected to the expansion box 22.

[0032] The gas delivery component 24 also includes a groove 247 and a slider 248: The slide 247 is formed inside the receiving cavity 241; The slider 248 is fixedly installed on the outer surface of the shaped tube 246, and the slider 248 is slidably connected inside the groove 247.

[0033] The storage box 2 has a door 25 hinged to its end.

[0034] An accordion-style protective cover 26 is provided between the storage box 2 and the expansion box 22, and the accordion-style protective cover 26 is fixedly connected to the storage box 2 and the expansion box 22 respectively.

[0035] Example 2: In this example, the storage box 2 is fixedly installed inside the compartment of the transport vehicle 1 and serves as the basic body storage compartment; the expansion box 22 is slidably disposed on one side of the storage box 2. In its initial state, it fits snugly against the storage box 2 for storage and concealment. After being expanded, it forms two independent but connected transfer compartments with the storage box 2.

[0036] The driving lifting component 23 serves as the core expansion drive structure. The top of the support rod 231 is welded and fixed to the bottom of the expansion box 22. The bottom of the support rod 231 is slidably connected inside the guide groove 233 to ensure that the expansion box 22 slides horizontally without deviation. The output shaft of the push-pull cylinder 232 is fixedly connected to the side wall of the support rod 231. The extension and retraction of the push-pull cylinder 232 drives the support rod 231 to slide along the guide groove 233, thereby driving the expansion box 22 to extend and retract horizontally, realizing the switching between expansion and storage. The bottom of the expansion box 22 is glued and fixed with a sealing strip. The sealing strip is tightly fitted to the bottom plate of the transport vehicle 1 to seal the sliding gap and prevent cold air leakage.

[0037] Push cylinders 234 are symmetrically installed at the left and right ends of push-pull cylinders 232, driving the movable base plate 235 to rise and fall vertically via the extension and retraction of push cylinders 234. The movable base plate 235 has an overall L-shaped structure, with its outer wall fully covered by rubber sealing strips. The sealing strips fit tightly against the inner walls of the storage box 2 and the expansion box 22, achieving a sealed partition at the bottom of the compartments after raising and lowering, ensuring the independence of the two compartment spaces. The bottom of the mounting plate 236 is vertically fixed with guide columns 237 to guide the raising and lowering movement of the movable base plate 235 and prevent deviation and jamming. Two sets of limiting strips 238 are fixed inside the movable base plate 235 and the expansion box 22 respectively, which can limit the stretcher used for transporting remains.

[0038] The air supply component 24 is responsible for the delivery and time-sharing of the cold air of the whole vehicle. The accommodating cavity 241 is opened inside the front of the compartment of the transport vehicle 1 to accommodate the air supply duct. The air supply pipe 242 is connected to the air outlet of the vehicle air conditioner and the end is connected to the inside of the storage box 2 to form the main air supply passage. The branch of the air supply pipe 243 is fixed to the side wall of the air supply pipe 242 and is connected to the inside of the air supply pipe 242. Two sets of solenoid valves 244 are respectively installed in the air inlet of the accommodating cavity 241 and in the air supply pipe 243, and are electrically connected to the control unit. They can be independently controlled to open and close, respectively controlling the opening and closing of the main air supply passage of the storage box 2 and the branch air supply passage of the expansion box 22. The end of the air supply pipe 243 is fixedly connected to a corrugated pipe 245, which is expandable and deformable to adapt to the horizontal expansion displacement of the expansion box 22. The end of the corrugated pipe 245 is fixed to a special-shaped pipe 246, which penetrates into the interior of the expansion box 22 to realize the delivery of cold air. A sliding groove 247 is horizontally opened on the inner side wall of the accommodating cavity 241, and a slider 248 is fixed on the outer wall of the special-shaped pipe 246. The slider 248 is slidably connected inside the sliding groove 247, so that the special-shaped pipe 246 can slide synchronously with the expansion box 22, ensuring the stability of the pipeline connection and avoiding pipeline pulling and damage.

[0039] The storage box 2 is hinged to the front end with a door 25. The edge of the door 25 is covered with a sealing strip. When closed, it can completely seal the port of the storage box 2, facilitating the handling of remains. An accordion-style protective cover 26 is fixedly installed at the joint between the storage box 2 and the expansion box 22. The two ends of the accordion-style protective cover 26 are respectively glued and fixed to the side walls of the two compartments. It can stretch and contract synchronously with the expansion box 22, sealing the joint gap throughout and improving the overall sealing, dustproof and heat insulation performance of the compartment.

[0040] This device achieves leak-free protection in both the retracted and expanded states through a multi-layered, all-around sealing structure combined with a telescopic adaptable structure. In the retracted state of the expansion box 22, the storage box 2 and the expansion box 22 are tightly pressed together, with the accordion-style protective cover 26 at their connection point ensuring complete sealing of any gaps. Simultaneously, the sealing strip of the movable base plate 235 adheres to the inner wall of the chamber, sealing internal gaps. In the expanded state of the expansion box 22, the sealing convex strip at the bottom of the expansion box 22 remains tightly fitted to the floor of the transport vehicle 1, sealing any bottom gaps caused by sliding displacement. Simultaneously, the telescopic corrugated pipe 245 adapts to the expansion displacement, ensuring seamless connections at the air supply duct joints. Combined with the fitted sliding structure of the shaped pipe 246, slider 248, and groove 247, the gap between the air duct and the chamber is completely sealed. This effectively prevents cold air leakage and outside air infiltration in both the pre-expansion and post-expansion operating states, ensuring the stability of the low-temperature environment inside the chamber.

[0041] The control unit of this application adopts an on-board intelligent controller, which has a built-in data acquisition module, a computing module, and a control output module. It is electrically connected to the push-pull cylinder 232, the push-up cylinder 234, and the solenoid valve 244. The control unit relies on the supporting sensing and detection components to realize parameter acquisition and status detection, specifically including a stroke sensor, a resistance sensor, and a volume recognition sensor. The stroke sensor collects the extension and retraction displacement data of the expansion box 22 in real time to accurately determine the storage and unfolding working status of the expansion box 22. The resistance sensor collects the air intake resistance parameters of the air duct and combines them with the displacement data to calculate and fit the real-time effective volume of the expansion box 22. All detection data is transmitted to the computing module of the control unit in real time to provide data support for the subsequent proportional allocation of air supply time and the time-sharing opening and closing control of the solenoid valve 244, realizing automated intelligent control.

[0042] This invention provides, for example Figures 8 to 9 The multi-functional body transport vehicle shown includes a transport vehicle 1, a storage box 2, an expansion box 22, a drive lifting component 23, an air supply component 24, and a control unit; Storage box 2 is fixedly installed inside transport vehicle 1; The expansion box 22 is located on one side of the storage box 2, and the storage box 2 is connected to the expansion box 22; The drive lifting component 23 is installed inside the transport vehicle 1. The drive lifting component 23 is driven to connect with the expansion box 22. The drive lifting component 23 is used to drive the expansion box 22 to move toward or away from the storage box 2, thereby realizing the storage and expansion of the expansion box 22. The air supply component 24 is located at one end of the storage box 2. The air supply component 24 is connected to the storage box 2 and the expansion box 22 respectively. The air supply component 24 is used to blow the cooling gas generated by the air conditioner inside the transport vehicle 1 into the storage box 2 and the expansion box 22. The control unit is installed on the transport vehicle 1, and the control unit is electrically connected to the drive lifting component 23 and the air supply component 24; The control unit is used to control the air supply component 24 to supply air to the storage box 2 and the expansion box 22 in a time-sharing manner when it detects that the expansion box 22 has switched from the storage state to the expansion state, so as to keep the equivalent air exchange rate in the two independent spaces consistent.

[0043] The specific steps for controlling the control unit are as follows: During the expansion box 22 unfolding process, the operating parameters of the driving lifting component 23 are collected in real time, and the independent space volume and air intake resistance formed by the expansion box 22 are estimated based on the operating parameters. Based on the volume ratio of the storage box 2 and the expansion box 22, determine the time allocation ratio of the air supply component 24 to supply air to the two spaces within a unit cycle. The solenoid valve 244 in the control air supply component 24 is alternately turned on according to the time allocation ratio to realize time-sharing air supply between the storage box 2 and the expansion box 22; When the expansion box 22 is in the storage state, the control air supply component 24 only supplies air to the storage box 2.

[0044] Example 3: In this example, traditional equipment uses a fixed air duct and a fixed airflow pattern. The air duct has no flow splitting structure and no time-sharing control components, and can only uniformly supply air to a single fixed compartment. Once the space is expanded to two independent compartments, problems such as uneven air volume distribution and large differences in air exchange rates will occur. The larger compartment will have insufficient cold air supply and inadequate cooling, while the smaller compartment will have cold air accumulation and wasted energy, failing to meet the requirements for simultaneous low-temperature preservation of multiple bodies. This application solves the problems of poor adaptability and uneven cooling effect of traditional fixed air supply mode by setting up dual independent air supply channels and linking the control unit with the solenoid valve 244. The air supply time is dynamically allocated according to the volume ratio of the two compartments, and the equivalent air exchange rate is used as the control benchmark to compensate for the volume difference and air intake resistance difference of different compartments. This effectively ensures that the low-temperature preservation effect of the two independent compartments is uniform and consistent.

[0045] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional body transport vehicle, characterized in that, include: Transport vehicle (1); The storage box (2) is fixedly installed inside the transport vehicle (1); An expansion box (22) is provided on one side of a storage box (2), and the storage box (2) is connected to the expansion box (22); A drive lifting component (23) is installed inside the transport vehicle (1). The drive lifting component (23) is driven to connect with the expansion box (22). The drive lifting component (23) is used to drive the expansion box (22) to move toward or away from the storage box (2), thereby realizing the storage and expansion of the expansion box (22). An air supply component (24) is provided at one end of the storage box (2). The air supply component (24) is connected to the storage box (2) and the expansion box (22) respectively. The air supply component (24) is used to blow the cooling gas generated by the air conditioner inside the transport vehicle (1) into the storage box (2) and the expansion box (22). A control unit is mounted on the transport vehicle (1) and is electrically connected to the drive lifting component (23) and the air supply component (24); The control unit is used to control the air supply component (24) to supply air to the storage box (2) and the expansion box (22) in a time-sharing manner when it detects that the expansion box (22) has switched from the storage state to the expansion state, so that the equivalent air exchange rate in the two independent spaces remains the same.

2. The multi-functional body transport vehicle according to claim 1, characterized in that, The drive lifting component (23) includes a support rod (231), a push-pull cylinder (232), and a guide groove (233): A support rod (231) is fixedly installed at the bottom of the expansion box (22). The bottom of the support rod (231) abuts against the transport vehicle (1). A sealing strip is installed at the bottom of the expansion box (22). The sealing strip fits tightly against the transport vehicle (1). A push-pull cylinder (232) is detachably mounted inside the transport vehicle (1), and the output shaft of the push-pull cylinder (232) is fixedly connected to the support rod (231); A guide groove (233) is provided inside the transport vehicle (1), and the support rod (231) is slidably connected inside the guide groove (233).

3. A multi-functional body transport vehicle according to claim 2, characterized in that, The drive lifting component (23) also includes a push cylinder (234), a movable base plate (235), and a mounting plate (236): The push cylinder (234) is located at both ends of the push-pull cylinder (232); The movable base plate (235) is located above the push cylinder (234). The movable base plate (235) is L-shaped and its outer surface is wrapped with a sealing strip. The sealing strip is tightly attached to the inner wall of the storage box (2). Mounting plate (236) is fixedly mounted on the bottom of movable base plate (235), and the output shaft of the push cylinder (234) is fixedly assembled with mounting plate (236).

4. A multi-functional body transport vehicle according to claim 1, characterized in that, The drive lifting component (23) also includes a guide post (237) and a limiting strip (238): A guide post (237) is fixedly installed at the bottom of the mounting plate (236), and the guide post (237) is slidably connected inside the push cylinder (234); Two sets of limiting strips (238) are fixedly installed on the movable base plate (235) and the expansion box (22), respectively.

5. A multi-functional body transport vehicle according to claim 1, characterized in that, The gas delivery component (24) includes a receiving cavity (241), a gas delivery pipe (242), and a gas supply pipe (243): The accommodating cavity (241) is located inside the transport vehicle (1); Gas supply pipe (242) is installed at the air conditioner outlet and is connected to the storage box (2); An air supply pipe (243) is fixedly installed on one side of an air delivery pipe (242), and the air supply pipe (243) is connected to the air delivery pipe (242).

6. A multi-functional body transport vehicle according to claim 5, characterized in that, The gas delivery component (24) also includes a solenoid valve (244), a bellows (245), and a special-shaped pipe (246): Two sets of solenoid valves (244) are respectively installed on the accommodating cavity (241) and the gas delivery pipe (242). By controlling the opening and closing of the solenoid valves (244), the direction of the cooling airflow can be controlled. The solenoid valves (244) are electrically connected to the control unit. A bellows (245) is fixedly installed on one side of the air supply pipe (243); A special-shaped tube (246) is fixedly installed on one side of a corrugated tube (245), and the special-shaped tube (246) is connected to the expansion box (22).

7. A multi-functional body transport vehicle according to claim 5, characterized in that, The gas delivery component (24) also includes a groove (247) and a slider (248): A chute (247) is formed inside the receiving cavity (241); A slider (248) is fixedly installed on the outer surface of the shaped tube (246), and the slider (248) is slidably connected inside the groove (247).

8. A multi-functional body transport vehicle according to claim 1, characterized in that, The storage box (2) is hinged to a door (25) at one end.

9. A multi-functional body transport vehicle according to claim 1, characterized in that, An accordion-style protective cover (26) is provided between the storage box (2) and the expansion box (22), and the accordion-style protective cover (26) is fixedly connected to the storage box (2) and the expansion box (22) respectively.

10. A multi-functional body transport vehicle according to claim 1, characterized in that, The specific steps of the control unit are as follows: During the expansion box (22) unfolding process, the operating parameters of the driving lifting component (23) are collected in real time, and the independent space volume and air intake resistance formed by the expansion box (22) are estimated based on the operating parameters; Based on the volume ratio of the storage box (2) and the expansion box (22), determine the time allocation ratio of the air supply component (24) to supply air to the two spaces within a unit cycle; The solenoid valve (244) in the control air supply component (24) is alternately turned on according to the time allocation ratio to realize time-sharing air supply between the storage box (2) and the expansion box (22); When the expansion box (22) is in the storage state, the control air supply component (24) only supplies air to the storage box (2).

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