Medical multifunctional transfer trolley with variable bed width

Abstract

The invention provides a medical multifunctional transfer trolley with a variable bed width, and relates to the field of medical instruments. A medical multifunctional transfer trolley with a variable bed width comprises a transfer bed board; the device further comprises an expansion bed board and a variable-amplitude guide rail. Wherein the variable-amplitude guide rail is arranged at the bottom of the transfer bed board, the expansion bed board is connected with the variable-amplitude guide rail in a sliding mode, and the variable-amplitude guide rail provides a motion path for unfolding or folding of the expansion bed board. Compared with the prior art, the transfer trolley is operated in three modes of electric, electric power assisting and manual pushing, the operation modes are more and more flexible, the amplitude of the bed width of the transfer trolley can be changed between 500 mm and 800 mm through the drawer type variable bed width and the guardrails so that the transfer trolley can adapt to transfer of a patient with a large body type or a special body position, and the transfer trolley is convenient to use. The transfer trolley can achieve multiple functions of ultra-small radius turning, right-angle turning, in-situ turning, rotation with front wheels or rear wheels as fulcrums, parallel movement and the like.

Description

Technical Field

[0001] The invention relates to the field of medical equipment, and in particular to a medical multifunctional variable bed width transport vehicle. Background Art

[0002] A medical transfer vehicle is a special vehicle used to transfer patients from one location to another. It is usually used for transferring patients within a hospital, between hospitals, or between a hospital and other medical institutions. The bed width of ordinary patient transfer vehicles currently used in various medical facilities is generally around 500mm.

[0003] In recent years, the number of patients who are heavy, large in size, or require special postures and need to be transferred has increased significantly. Currently, patients can only be accommodated by opening one or both sides of the guardrails, which creates a safety hazard. The transfer beds in the prior art generally use folding bed boards or telescopic bed board structures to achieve the size variation of the transfer beds.

[0004] When adjusting the width of the existing medical transport vehicle, the stability of the retractable bed board is poor. After the retractable bed board is extended, the effective supporting area of ​​the retractable bed board is small. If folding bed boards are set on both sides of the transport vehicle, after unfolding, it is difficult to keep the height of the folding bed board inconsistent with the original bed board of the transport vehicle, and the patient lying on it is less comfortable. In addition, the existing retractable bed board will occupy the space on both sides of the transport bed when folded. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the present invention provides a medical multifunctional variable bed width transport vehicle, which at least solves the problems of the existing medical transport vehicles, such as poor stability of the retractable bed board when adjusting the bed width, the inconsistent height of the folded bed board and the original bed board of the transport vehicle after unfolding, poor comfort for patients lying down, and the space on both sides of the transport bed being occupied when folded.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0009] The present invention provides a medical multifunctional variable bed width transport vehicle, comprising: a transport bed board; and also comprising: an extension bed board and a variable width guide rail; wherein the variable width guide rail is arranged at the bottom of the transport bed board, the extension bed board is slidably connected to the variable width guide rail, and the variable width guide rail provides a movement path for the expansion or storage of the extension bed board.

[0010] In one embodiment, there are two extension bed boards and two amplitude-changing guide rails, and the two amplitude-changing guide rails are symmetrically arranged at the bottom of the transfer bed board, and the two extension bed boards are respectively slidably connected with the two amplitude-changing guide rails;

[0011] Furthermore, each of the luffing guide rails comprises: a guide hole, which is opened on the luffing guide rail; a connecting piece, one end of which is arranged on the luffing guide rail, and the other end of which is arranged on the transfer bed plate;

[0012] Furthermore, each of the extended bed boards comprises: a support board and a slider, wherein the support board is mounted on the bottom of the extended bed board; two sliders are mounted on the support board, and both sliders are slidably connected in the guide hole;

[0013] Preferably, an inner elbow is provided at one end of the variable amplitude guide rail, the bending direction of the inner elbow is toward the middle position of the transfer bed plate, and a limiting structure is provided at the end of the inner elbow.

[0014] More preferably, a limiting structure is also provided at the end of the guide hole away from the inner elbow, and the limiting structure is a groove or an elastic buckle, or a combination of the groove and the elastic buckle.

[0015] In one embodiment, the transfer vehicle also includes: a fixed mattress, which is arranged on the top surface of the transfer bed board; a folding mattress, which is movably connected to the side of the fixed mattress; a guardrail, which is arranged on one side of the extended bed board; and a chassis, which is arranged below the transfer bed board.

[0016] In another embodiment, the transfer vehicle further includes: at least two folding IV rods, which are respectively folded and arranged at the head and foot of the transfer bed board, and the folding IV rods are arranged to be unfolded and in a vertical state when in use; an oxygen cylinder holder, which is arranged at the head of the transfer bed board, and the oxygen cylinder holder is arranged to be unfolded and in a horizontal or vertical state when in use.

[0017] Further, the chassis includes: a driving operation platform, which is arranged at the end of the bed of the transfer bed board, the driving operation platform is connected to the chassis through a driving platform booster, and the driving operation platform is used to control the transfer vehicle; a standing platform, which is two in number, and the two standing platforms are connected by hinges and folded and arranged on one side of the chassis, and the two standing platforms are arranged to be unfolded when in use, and the standing platforms are used to provide standing space for the operator; a hydraulic lifting column, which is at least four in number, is installed on the chassis, and the top of the hydraulic lifting column is connected to the transfer bed board, and a bed lifting handle is provided on the hydraulic lifting column; a bed support beam, which is two in number, and the two bed support beams are both installed at the bottom of the transfer bed board, and the top of the hydraulic lifting column is connected to the bed support beam, and the hydraulic lifting column is used to adjust the height of the transfer bed board;

[0018] In one embodiment, the transfer vehicle also includes: four Mecanum wheels installed at the bottom of the chassis; a charging port cover installed on one side of the chassis; a driving battery cover installed on the top of the chassis by screws; a storage tray installed on the top of the chassis, the storage tray is arranged on one side of the driving battery cover, the storage tray is used to place items, and a data interface group is provided on the inner wall of the storage tray; three inspection covers are respectively installed on the side, top and front of the chassis, and the inspection covers are fixed to the chassis by screws.

[0019] Furthermore, the standing platform includes: two lumbar support lifting rods, the bottom ends of the two lumbar support lifting rods are respectively connected to the standing platform through two folding bases, a retractable locking pedal is connected between the two folding bases, the retractable locking pedal is connected to the two lumbar support lifting rods, and the top ends of the two lumbar support lifting rods are connected to the same lumbar support; two support wheels are installed at the bottom of the standing platform.

[0020] In one embodiment, the transfer bed board includes: a headboard, which is connected to the transfer bed board by a hinge; two patient fixing straps, which are respectively installed on the transfer bed board and the headboard, and the patient fixing straps are used to fix the patient on the transfer vehicle; a headboard pitch pneumatic rod, one end of which is installed on the bottom of the transfer bed board, and the other end is installed on the bottom of the headboard; a headboard pitch adjustment handle, which is installed on the headboard, and the headboard pitch adjustment handle is connected to the headboard pitch pneumatic rod.

[0021] In one embodiment, the guardrail includes: a variable-length handle installed on one side of the guardrail; a handle locking button installed on the variable-length handle; a lock installed on the guardrail, the guardrail is connected to the extended bed board through the lock, the lock is configured so that when the guardrail is unlocked, the guardrail can rotate along its own axis, and when the lock locks the guardrail, the guardrail is fixed to the extended bed board; a cross bar installed on one side of the guardrail, the cross bar is connected to hooks, the number of hooks is at least two, the hooks are configured to move left and right along the direction of the cross bar, and the hooks are used to hang urine bags.

[0022] Furthermore, the foldable IV hanging rod includes: at least two IV hooks, which are used to hang infusion bottles; a height adjustment knob installed on the rod body of the foldable IV hanging rod; a base spring lock installed on one side of the transfer bed board, one side of the base spring lock is connected to the first base knob; a horizontal and vertical axis spring lock installed at the bottom of the base spring lock, one side of the horizontal and vertical axis spring lock is connected to the horizontal and vertical conversion knob, and one end of the foldable IV hanging rod is connected to the horizontal and vertical axis spring lock.

[0023] Furthermore, the oxygen cylinder holder includes: a folding swing arm, one end of which is installed on the bottom of the transfer bed board, and the other end is connected to the oxygen cylinder holder; a second base knob, which is installed on the bottom of the transfer bed board, and one end of the folding swing arm is connected to the bottom of the transfer bed board through the second base knob; a horizontal and vertical adjustment knob, which is installed on the other end of the folding swing arm, and the oxygen cylinder holder is connected to the folding swing arm through the horizontal and vertical adjustment knobs; a folding arm knob, which is installed on the folding part of the folding swing arm; and an oxygen cylinder fixing knob, which is installed on the oxygen cylinder holder.

[0024] In one embodiment, the driving console includes: a push handle, which is installed on the side of the driving console, and two electric power-assisting buttons are provided on the push handle; a console position adjustment button, which is installed on the side of the driving console, and the console position adjustment button is used to adjust the position of the driving console in four directions: up, down, front and back; a driving warning light, which is installed on the table top of the driving console, and the driving warning light is used to light up when the transfer vehicle moves; a joystick, which is installed on the table top of the driving console, and the joystick is used to control the driving of the transfer vehicle; an emergency stop button, which is installed on the table top of the driving console, and the emergency stop button is used to stop the transfer vehicle urgently when pressed; an embedded monitor display, which is installed on the driving console. On the workbench, the built-in monitor display is used to display the working status of the transfer vehicle and the patient's monitoring information; the function switch group is composed of a number of boat-shaped switches, which are installed on the driving console. The boat-shaped switches are: main power switch, mode switch, warning light switch, parking switch and lifting switch; the main power key is installed on the driving console. The main power key is used to switch the use mode of the transfer vehicle. The use modes of the transfer vehicle include: electric driving mode, electric power-assisted push mode and push mode; the steering wheel is installed on the driving console. The steering wheel is equipped with a power handle. The steering wheel is used to control the driving direction of the transfer vehicle;

[0025] Furthermore, a data cable storage box is installed on the driving platform booster, and the monitor data cable is placed in the data cable storage box. One side of the data cable storage box is connected to the interface panel.

[0026] Furthermore, the standing platform includes: two lumbar support lifting rods, the bottom ends of the two lumbar support lifting rods are respectively connected to the standing platform through two folding bases, a retractable locking pedal is connected between the two folding bases, the retractable locking pedal is connected to the two lumbar support lifting rods, and the top ends of the two lumbar support lifting rods are connected to the same lumbar support; two support wheels are installed at the bottom of the standing platform.

[0027] Furthermore, the transfer vehicle also includes: a central control module, which is embedded in the driving console booster. The central control module has a built-in main control chip, which summarizes the information of other modules and processes it comprehensively, controls the coordinated work of each module, and manages the interface system and network system of the transfer vehicle; a driving console control system module, which is embedded in the driving console, the driving console control system module is connected to the central control module, and the driving console control system module manages the signal feedback on the driving console to the central control module; a booster control system module, which is embedded in the driving console booster, the booster control system module is connected to the central control module, and the booster control system module is used to feedback the operator's actions to the central control module during electric power-assisted driving, so as to control the transfer vehicle to perform corresponding actions; an embedded ECG monitor host, which is embedded in the driving console booster, the embedded ECG monitor host is connected to the embedded monitor display, and the embedded ECG monitor host is used to provide patient monitoring data, and output the embedded monitor display or exchange data with an external monitor; a control bus, which is installed in the chassis, and the control bus is used to connect various functional modules.

[0028] Furthermore, four drive motors are installed in the chassis, and the four drive motors provide driving force for the four Mecanum wheels respectively; a hydraulic system management module is installed in the chassis, and the hydraulic system management module is used to control the lifting and lowering of the transfer bed and the hydraulic system of the driving platform according to instructions; a hydraulic pipeline is installed in the chassis, and the four hydraulic lifting columns are connected to the hydraulic system management module through the hydraulic pipeline; a battery pack is installed in the chassis, and the battery pack is used to power the transfer vehicle; a power management module is installed in the chassis, and the power management module is connected to the battery pack, and the central control module is connected to the power management module, and the power management module is used to control the charging, discharging and heat management of the battery pack, and control the power distribution of the drive motor according to the instructions of the central control module.

[0029] (III) Beneficial effects

[0030] The present invention provides a medical multifunctional variable bed width transport vehicle. Compared with the prior art, it has the following beneficial effects:

[0031] 1. The drawer-type variable bed width and guardrails can make the bed width of this transport vehicle variable between 500-800mm to accommodate the transfer of patients with larger body size or special body positions.

[0032] 2. The transport vehicle can be operated in three modes: electric, electric-assisted and manual-pushing, to meet different transport needs when transporting patients.

[0033] 3. The transfer vehicle has four built-in motors that drive four Mecanum wheels respectively, so that the transfer vehicle can achieve ultra-small radius turns, right-angle turns, on-the-spot U-turns, rotation with the front or rear wheels as fulcrums, and parallel movement. When using the electric driving mode and electric power-assist mode, the uphill and downhill passing angle is ≤15°, and the speed of the transfer vehicle up and down the slope will not be affected by inertia and change the speed.

[0034] 4. Through the built-in simple ECG monitor, the embedded monitor multi-function display and the external monitor interface, the patient's ECG monitoring can be performed directly, and the external monitor can also be connected to display the monitoring data on the embedded monitor multi-function display, so that the operator can instantly grasp the patient's status when operating this transport vehicle.

[0035] 5. The transfer vehicle has reserved a variety of data interfaces, providing the possibility for realizing semi-automatic assisted driving, automatic driving, automatic parking and return, and integration into the hospital information system in the future. The transfer vehicle has a reasonable design, simple structure, flexible operation mode and strong driving adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0037] Figure 1 A top axonometric view of the present invention.

[0038] Figure 2 This is a bottom axonometric view of the present invention.

[0039] Figure 3 This is the left side axonometric view of the unfolded state proposed by the present invention.

[0040] Figure 4 This is the right side axonometric view of the unfolded state proposed by the present invention.

[0041] Figure 5 This is a diagram of the extended bed board proposed by the present invention in a folded state.

[0042] Figure 6 This is a diagram of the expanded bed board proposed by the present invention in its unfolded state.

[0043] Figure 7 This is a diagram of the unfolding process of the standing platform proposed by the present invention.

[0044] Figure 8 This is a schematic structural diagram of the transfer bed board, bed head pitch pneumatic rod and bed head pitch adjustment handle proposed in the present invention.

[0045] Fig. 9 This is a schematic diagram of the structure of the driving console proposed in the present invention.

[0046] Fig.10 This is a diagram of the foldable IV hanging rod proposed by the present invention in a folded state.

[0047] Fig.11 This is a diagram of the unfolded state of the foldable IV hanging rod proposed by the present invention.

[0048] Fig.12 This is a diagram of the oxygen cylinder support proposed by the present invention in a folded state.

[0049] Fig.13 This is a diagram of the oxygen cylinder support in an expanded state according to the present invention.

[0050] Fig.14 This is a schematic diagram of the structure of the driving console booster, data cable storage box and interface panel proposed in the present invention.

[0051] Fig.15 This is a schematic diagram of the control system proposed by the present invention.

[0052] The reference numerals in the figure are:

[0053] 1. Fixed mattress; 2. Transfer bed board; 3. Folding mattress; 4. Guardrail; 5. Luffing guide rail; 6. Oxygen cylinder bracket; 7. Hydraulic lifting column; 8. Mecanum wheel; 9. Charging port cover; 10. Handle locking button; 11. Luffing handle; 12. Driving battery cover; 13. Hook; 14. Crossbar; 15. Folding IV hanging rod; 16. Storage tray; 17. Chassis; 18. Inspection port cover; 19. Data cable storage box; 20. Support wheel; 21. Support plate; 22. Data interface group; 23. Bed head pitch pneumatic rod; 24. Patient fixation belt; 25. Extended bed board; 26. Bed head pitch adjustment handle; 27. Bed lifting crank; 28. Bed support beam; 29. ​​Retractable locking pedal; 30. Lock; 31. Driving warning light; 32. Joystick; 33. Emergency stop button; 34. Driving console; 35. Hand push handle; 36. Embedded monitor display; 37. Function Switch group; 38. Electric power button; 39. Main power key; 40. Power handle; 41. Steering wheel; 42. Lumbar support; 43. Driving station position adjustment button; 44. Standing platform; 45. Lumbar support lifting rod; 46. Driving station booster; 47. Hinge; 48. Base spring lock; 49. First base knob; 50. Horizontal and vertical axis spring lock; 51. Horizontal and vertical conversion knob; 52. Height adjustment knob; 53. Intravenous drip hook; 54. Second base knob; 55. Horizontal and vertical adjustment knob; 56. Folding arm knob; 57. Oxygen cylinder fixing knob; 58. Folding swing arm; 59. Interface panel; 60. Driving station control system module; 61. Power assist machine control system module; 62. Embedded ECG monitor host; 63. Central control module; 64. Drive motor; 65. Hydraulic system management module; 66. Hydraulic pipeline; 67. Battery pack; 68. Power management module; 69. Control bus. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0055] The embodiment of the present application provides a multifunctional medical variable bed width transport vehicle, which solves the problems of the existing medical transport vehicles, such as the poor stability of the telescopic bed board when adjusting the width, the reduction of the effective support area of ​​the transport bed board after being extended, and the inconsistency between the height of the folding bed board and the original bed board of the transport vehicle after being unfolded, which makes the patient's comfort when lying on it poor, and the space on both sides of the transport bed will be occupied when folded. The bed width of the transport vehicle can be changed between 500-800mm to adapt to the transportation of patients with larger body size or special body positions. In addition, the transport vehicle can be operated in three modes: electric, electric power, and manual pushing; at the same time, the transport vehicle has four built-in motors that drive four Mecanum wheels respectively, so that the transport vehicle can realize ultra-small radius turning, right-angle turning, turning on the spot, rotating with the front wheel or rear wheel as the fulcrum, and parallel movement. Furthermore, the transport vehicle has a built-in simple ECG monitor, a built-in monitor multi-function display and an external monitor interface, which can directly monitor the patient's ECG. It can also be connected to an external monitor to display the monitoring data on the built-in monitor multi-function display, so that the operator can instantly grasp the patient's status when operating the transport vehicle.

[0056] The technical solution in the embodiment of the present application is to solve the above technical problems, and the overall idea is as follows:

[0057] The medical multifunctional variable bed width transfer vehicle of this solution can be operated in three modes: electric driving, electric power-assisted hand pushing and hand pushing, for patient transfer. In particular, the specially designed variable bed width, drawer-type variable width guide rails, variable width bed and variable width guardrail can realize the conversion of the transfer vehicle bed width between 500-800mm, solving the difficulty in transporting patients with larger body size or special body positions.

[0058] This transport vehicle uses 48V24Ah low-voltage flame-retardant lithium battery pack charging and energy storage as power, and uses four motors to independently drive four Mecanum wheels. It can realize ultra-small radius turning, right-angle turning, turning on the spot, rotating with the front wheel or rear wheel as the fulcrum, and parallel movement. The operation is flexible and simple, and the travel speed is uniform and safe. It is suitable for the relatively small and crowded environment of the hospital, especially in the elevator, right-angle corridor turning, etc. When the transport vehicle is pushed in the electric driving mode and the electric power mode, the uphill and downhill passing angle is ≤15° (which can meet the 1:12 slope requirement of barrier-free facilities), and the speed of the transport vehicle when going up and down the slope will not be affected by inertia. This transport vehicle is equipped with two sets of front and rear folding drip hangers, a set of universal oxygen cylinder racks, two sets of hanging accessories cross bars and hooks, electric hydraulic high and low lifting rods and other components. In particular, this transport vehicle also has a built-in embedded ECG monitor and multiple communication interfaces, which can provide basic ECG monitoring data or connect and display the monitoring data of an external ECG monitor during the patient transportation process.

[0059] This transport vehicle has expanded more functions and operation methods based on ordinary transport vehicles, which can meet the needs of medical institutions at all levels for daily transport of various types of patients. It is simple to operate, has strong adaptability, good passability, and saves labor costs, so that the transfer work that originally required 3-5 people can be reduced to 2 people or even 1 person.

[0060] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0061] The present invention proposes a medical multifunctional variable bed width transport vehicle, referring to Figure 1-Figure 15 ,include:

[0062] The chassis 17; the chassis 17 includes: a driving console 34, which is arranged at the end of the transfer bed board 2, and the driving console 34 is connected to the chassis 17 through a driving console booster 46, and the driving console 34 is used to control the transfer vehicle; a standing platform 44, which is two in number, and the two standing platforms 44 are connected by a hinge 47, and are folded and arranged on one side of the chassis 17. The two standing platforms 44 are arranged to be unfolded when in use, and the standing platforms 44 are used to provide a standing space for the operator; a hydraulic lifting column 7, which is at least four in number, and the hydraulic lifting column 7 is installed on the chassis 17. The top of the hydraulic lifting column 7 is connected to the transfer bed board 2, and a bed lifting crank 27 is provided on the hydraulic lifting column 7; a bed lifting crank 27 is provided on the right side of the end of the transfer vehicle. In emergency situations such as failure of the electric lifting button or failure of the hydraulic lifting system, the bed lifting crank 27 can be used to manually implement The action of lifting the bed is now shown; there are two bed support beams 28, both of which are installed at the bottom of the transfer bed board 2, and the top of the hydraulic lifting column 7 is connected to the bed support beam 28, and the hydraulic lifting column 7 is used to adjust the height of the transfer bed board 2; there are four Mecanum wheels 8, which are installed at the bottom of the chassis 17; the charging port cover 9 is installed on one side of the chassis 17; the driving battery cover 12 is installed on the top of the chassis 17 by screws; the storage tray 16 is installed on the top of the chassis 17, and the storage tray 16 is arranged on one side of the driving battery cover 12. The storage tray 16 is used to place items, and a data interface group 22 is provided on the inner wall of the storage tray 16; there are three inspection cover 18, which are respectively installed on the side, top and front of the chassis 17, and the inspection cover 18 is fixed to the chassis 17 by screws.

[0063] Reference Figure 3 and Figure 4The transport bed board 2 is arranged above the chassis 17. A fixed mattress 1 is installed on the transport bed board 2. The fixed mattress 1 consists of two parts, a "trunk" and a "leg". The interior is filled with soft latex with a thickness of 50mm. The outer cover is waterproof fabric, which can be wiped and washed. When washing, open the zippers at both ends of the fixed mattress 1 to take out the inner core, and then wash the outer cover. The "trunk" fixed mattress 1 can pitch with the transport bed board 2; the transport bed board 2 includes: a headboard, which is connected to the transport bed board 2 by a hinge; two patient fixing belts 24 are respectively installed on the transport bed board 2 and the headboard The patient fixing belt 24 is used to fix the patient on the transfer vehicle; the headboard pitch pneumatic rod 23, one end of which is installed on the bottom of the transfer bed board 2, and the other end is installed on the bottom of the headboard; the headboard pitch adjustment handle 26 is installed on the headboard, and the headboard pitch adjustment handle 26 is connected to the headboard pitch pneumatic rod 23. The headboard pitch adjustment handle 26 can be used to adjust the pitch angle of the headboard backboard, and the adjustment range is 0-70°. Holding the headboard pitch adjustment handle 26 with one hand can unlock the headboard pitch pneumatic rod 23, and the other hand can adjust the pitch angle of the transfer bed board 2 up and down.

[0064] Reference Figure 5 and Figure 6 , a folding mattress 3 is installed on the transfer bed board 2. The folding mattress 3 is arranged on the side of the fixed mattress 1. The folding mattress 3 is used to widen the fixed mattress 1 after unfolding. The folding mattress 3 is connected to the fixed mattress 1 through a canvas. The single layer thickness is 25mm, and the total thickness after folding is 50mm, which is flush with the thickness of the "trunk" and "leg" fixed mattress 1. Because the folding mattress 3 is slightly harder than the fixed mattress 1, when the folding mattress 3 is opened and the patient lies down, the entire fixed mattress 1 can still maintain a consistent overall thickness. Under normal circumstances, the width of the entire fixed mattress 1 is 500mm. When it is necessary to expand with a variable amplitude, the handles on the folding mattress 3 can be held respectively, and the folding mattress 3 can be folded and unfolded, then the width of the fixed mattress 1 can be changed to 800mm.

[0065] Reference Figure 5 and Figure 6, an extended bed board 25 and an amplitude-changing guide rail 5; wherein the amplitude-changing guide rail 5 is arranged at the bottom of the transfer bed board 2, the extended bed board 25 is slidably connected with the amplitude-changing guide rail 5, and the amplitude-changing guide rail 5 provides a movement path for the expansion or storage of the extended bed board 25; there are two extended bed boards 25 and two amplitude-changing guide rails 5, and the two amplitude-changing guide rails 5 are symmetrically arranged at the bottom of the transfer bed board 2, and the two extended bed boards 25 are respectively slidably connected with the two amplitude-changing guide rails 5; each of the amplitude-changing guide rails 5 includes: a guide hole, the guide hole is opened on the amplitude-changing guide rail 5; a connecting piece, one end of which is arranged on the One end is arranged on the variable-length guide rail 5, and the other end is arranged on the transfer bed board 2; each of the extended bed boards 25 comprises: a support plate 21 and a slider, and the support plate 21 is installed at the bottom of the extended bed board 25; the two sliders are installed on the support plate 21, and the two sliders are slidably connected in the guide hole; an inner elbow is arranged at one end of the variable-length guide rail 5, and the bending direction of the inner elbow is toward the middle position of the transfer bed board 2, and a limiting structure is arranged at the end of the inner elbow, and a limiting structure is also arranged at the end of the guide hole away from one end of the inner elbow, and the limiting structure is a groove or an elastic buckle, or a combination of a groove and an elastic buckle.

[0066] Reference Figure 5 and Figure 6 There are two guardrails 4, which are respectively installed on one side of the two extended bed boards 25. The guardrails 4 are configured to rotate along their own axis when transporting patients.

[0067] Reference Figure 1 and Figure 2, the luffing handle 11 is installed on one side of the guardrail 4; the handle locking button 10 is installed on the luffing handle 11, and the two handle locking buttons 10 on the luffing handle 11 are pressed by the thumbs of both hands at the same time, and pulled outward, the handle will move outward along the luffing guide rail 5 together with the guardrail 4, the extended bed board 25 and other components, and the support plate 21 drives the slider to move in the luffing guide rail 5. The special curve design of the luffing guide rail 5 can make the extended bed board 25 keep the same height as the transfer bed board 2 on the transfer vehicle after the guardrail 4 is pulled outward; the locker 30 is installed on the guardrail 4, and the guardrail 4 is connected to the extended bed board 25 through the locker 30, and the locker 30 is set to unlock the guardrail When the guardrail 4 is locked, the guardrail 4 can rotate along its own axis. When the locker 30 locks the guardrail 4, the guardrail 4 is fixed on the extended bed board 25. When the locker 30 unlocks the guardrail 4, the guardrail 4 can flip 180° between upright and flipped down. After the guardrail 4 is locked with the locker 30, it can prevent the patient from falling when it is upright and locked. When it is horizontal and locked, it can be used as a transition bridge between the operating bed and the transport vehicle or between the hospital bed and the transport vehicle; a cross bar 14 is installed on one side of the guardrail 4, and a hook 13 is connected to the cross bar 14. The number of the hooks 13 is at least two, and the hooks 13 are set to move left and right along the direction of the cross bar 14. The hooks 13 are used to hang urine bags.

[0068] Reference Figure 3 and Figure 4 At least two foldable IV hanging rods 15 are folded and arranged at the head and foot of the transfer bed board 2 respectively. The foldable IV hanging rods 15 are arranged to be unfolded and in a vertical state when in use.

[0069] There are at least two drip hooks 53, which are used to hang infusion bottles; a height adjustment knob 52, which is installed on the rod body of the foldable drip hanging rod 15; a base spring lock 48, which is installed on one side of the transport bed plate 2, and one side of the base spring lock 48 is connected to a first base knob 49; a horizontal and vertical axis spring lock 50, which is installed at the bottom of the base spring lock 48, and one side of the horizontal and vertical axis spring lock 50 is connected to a horizontal and vertical conversion knob 51, and one end of the foldable drip hanging rod 15 is connected to the horizontal and vertical axis spring lock 50; Figure 3 , Figure 4 , Fig.10 and Fig.11 When using the foldable IV hanging rod 15, loosen the first base knob 49 and pull out the base spring lock 48; rotate the IV hanging rod to a horizontal position, push back the base spring lock 48, and tighten the first base knob 49; loosen the horizontal-vertical conversion knob 51 and pull out the horizontal-vertical axis spring lock 50; rotate the foldable IV hanging rod 15 to a vertical state, push back the horizontal-vertical axis spring lock 50, and tighten the horizontal-vertical conversion knob 51; loosen the height adjustment knob, adjust the foldable IV hanging rod 15 to the desired height, and tighten the height adjustment knob; open the hook 13 at the top of the IV hanging rod.

[0070] Reference Fig.12 and Fig.13 , the oxygen cylinder holder 6 is arranged at the head of the transport bed board 2, and the oxygen cylinder holder 6 is arranged to be unfolded and in a horizontal or vertical state when in use; a folding swing arm 58, one end of which is installed at the bottom of the transport bed board 2, and the other end is connected to the oxygen cylinder holder 6; a second base knob 54 is installed at the bottom of the transport bed board 2, and one end of the folding swing arm 58 is connected to the bottom of the transport bed board 2 through the second base knob 54; a horizontal and vertical adjustment knob 55 is installed at the other end of the folding swing arm 58, and the oxygen cylinder holder 6 is connected to the folding swing arm 58 through the horizontal and vertical adjustment knob 55; a folding arm knob 56 is installed at the folding part of the folding swing arm 58; an oxygen cylinder fixing knob 57 is installed on the oxygen cylinder holder 6; when using the oxygen cylinder holder 6, loosen the second base knob 54 and the folding arm knob Button 56, use the rotation of the folding arm to adjust the position of the oxygen cylinder holder 6, and then tighten the second base knob 54 and the folding arm knob 56; loosen the oxygen cylinder fixing knob 57, insert the oxygen cylinder horizontally and tighten it, and make sure again that the outer edge of the oxygen cylinder does not exceed the outer edge of the transport bed plate 2 of the transport vehicle, otherwise, readjust the position of the oxygen cylinder according to step 1, and the diameter of the oxygen cylinder that can be placed is 100-120mm; if the oxygen cylinder needs to be placed vertically, it is necessary to place the oxygen cylinder horizontally first, and then loosen the horizontal and vertical adjustment knobs 55, rotate the oxygen cylinder holder 6 to vertical, and tighten the horizontal and vertical adjustment knobs 55, and make sure again that the outer edge of the oxygen cylinder does not exceed the outer edge of the transport bed plate 2 of the transport vehicle, otherwise, readjust the position of the oxygen cylinder; you can also adjust the oxygen cylinder holder 6 to a vertical state before placing the oxygen cylinder.

[0071] Reference Fig. 9 The driving operation platform 34 includes: a hand push handle 35, which is installed on the side of the driving operation platform 34, and two electric power-assist buttons 38 are provided on the hand push handle 35; when using the hand push mode, first turn on the main power key 39 to the "ON" position, then press the parking switch in the function switch group 37 to release the parking state, and select the manual mode of the mode button in the function switch group 37 to manually push the transfer vehicle like an ordinary transfer vehicle; when using the electric power-assist mode, first turn on the main power key 39 to the "ON" position, then press the parking switch in the function switch group 37 to release the parking state, and select the electric mode of the mode button in the function switch group 37 to use the electric power-assist mode to push the transfer vehicle.

[0072] Hold the push handle 35 firmly with both hands, press and hold the electric power-assist buttons 38 at both ends with the thumbs of the left and right hands, and push the transport vehicle forward, backward and turn just like pushing an ordinary transport vehicle;

[0073] Hold the push handle 35 firmly with your left hand, and at the same time, press and hold the electric power button 38 with your left thumb, and use both hands to give the push handle 35 a torque to turn left or right, so that the transfer vehicle can rotate left or right in place;

[0074] Hold the push handle 35 firmly with both hands, only press and hold the left electric power button 38 with the left thumb, release the right electric power button 38 with the right thumb, and twist the push handle 35 to the left or right, so that the front wheel of the transfer vehicle does not turn but the rear wheel turns, so that the transfer vehicle can turn left or right with the front wheel as the fulcrum;

[0075] Hold the push handle 35 firmly with both hands, press and hold the right electric power button 38 with the right thumb, release the left electric power button 38 with the left thumb, and twist the push handle 35 to the left or right, so that the rear wheels of the transfer vehicle do not turn but the front wheels turn, so that the transfer vehicle can turn left or right with the front wheels as the fulcrum.

[0076] Reference Fig. 9 , the driving platform position adjustment button 43 is installed on the side of the driving console 34. The driving platform position adjustment button 43 is used to adjust the position of the driving console 34 in the four directions of up, down, front and back; when adjusting the position of the driving console 34, confirm that the main power key 39 is in the OFF state, or the parking button in the function switch group 37 is in the parking state. At this time, all wheels are locked, and the transfer vehicle cannot move. The personnel stand on the standing platform 44, stand firmly against the waist support, and press the four position adjustment buttons of the driving platform position adjustment button 43 to adjust the position of the driving console 34 in the four directions of up, down, front and back, and adjust it to the position where the operator can naturally hold the steering wheel 41 with his left hand or the steering wheel 41 power handle 40 can hold the joystick 32 with his right hand.

[0077] Reference Fig. 9 The driving warning light 31 is installed on the surface of the driving operation console 34. The driving warning light 31 is used to light up when the transfer vehicle moves to remind people around to pay attention to safety. In the three operating modes, the warning light switch button in the function switch group 37 can be used for switch control.

[0078] Reference Fig. 9The joystick 32 is mounted on the top of the driving console 34, and the joystick 32 is used to control the driving of the transfer vehicle; the steering wheel 41 is mounted on the top of the driving console 34, and a power handle 40 is mounted on the steering wheel 41, and the steering wheel 41 is used to control the driving direction of the transfer vehicle; the joystick 32 and the steering wheel 41 are used to control the forward, reverse, right-angle turn, on-the-spot U-turn, rotation with the front wheel or rear wheel as the fulcrum, and parallel movement of the transfer vehicle; the speed of the transfer vehicle is controlled by the stroke of the joystick 32, the speed range when moving forward is 0-10Km / h, and the speed range when moving backward is 0-5Km / h, and the transfer vehicle moves from rest to maximum forward / reverse The transport vehicle can change speed smoothly with a small acceleration, and will not cause a large sense of frustration, so as to avoid the impact of speed change causing harm to the patient. To ensure the safety of the transport vehicle, when moving forward or backward, it is necessary to keep the joystick 32 in the forward or backward state. Once the joystick is released, the transport vehicle will automatically stop slowly. The steering wheel 41 or the power handle 40 is used to control the driving direction of the transport vehicle. The transport vehicle uses Mecanum wheels 8 for driving, and each Mecanum wheel 8 can be independently controlled and rotated by the drive motor 64, so that small radius turns, right-angle turns, parallel movements or U-turns on the spot can be achieved.

[0079] Reference Fig. 9 An emergency stop button 33 is installed on the table of the driving operation console 34. The emergency stop button 33 is used to emergency stop the transfer vehicle when pressed.

[0080] Reference Fig. 9 The built-in monitor display 36 is installed on the table of the driving console 34. The built-in monitor display 36 is used to display the working status of the transfer vehicle and the patient's monitoring information.

[0081] Reference Fig. 9, the function switch group 37 is composed of a number of boat-shaped switches. The function switch group 37 is installed on the table of the driving operation console 34. The number of boat-shaped switches are: main power switch, mode switch, warning light switch, parking switch and lifting switch; the function position of each switch on the function switch group 37 is provided with a backlight prompt. When the switch is in the corresponding function position, the backlight of the corresponding function position will light up. If no light is on the switch, it means that the switch function has not been selected; Main power switch: after turning on, the whole vehicle is powered on, and all functional components of the whole vehicle are connected to the power supply. This switch needs to be turned on in all three operating modes. Even when using manual pushing, the "ON" of the main power switch should be pressed first before the "parking" switch can be used to unlock the parking function; Mode switch: used to select electric power-assisted driving mode or electric driving mode. When the manual mode is used, the switch is in the middle position and there is no backlight display on the switch; Warning light switch: The switch is in the "ON" state by default. As long as the main When the power key 39 is in the "ON" position and the main power switch is in the "ON" position, the warning light switch will be in the "ON" position by default, and the warning light will light up. If the warning light needs to be turned off during long-term parking or patient movement, press the "OFF" button of the warning light switch to turn off the warning light. However, when the transport vehicle is in any driving mode, the warning light will automatically turn on as long as the transport vehicle moves. If you need to forcibly turn off the warning light, you need to long press the "OFF" button of the warning light switch until the switch is locked and no longer pops up. The "OFF" backlight is always on, and the warning light is forcibly turned off. Parking switch: The parking system of the transport vehicle adopts a parking system that combines electronics and mechanics. The parking system is in the "parking" state by default, and the wheels will be locked. In any driving mode, the transport vehicle cannot move if the "parking" state is not correctly released. When using this transport vehicle in any mode, the "HOLD" button of the parking switch should be pressed after the preliminary preparations are completed and before starting. The transfer vehicle can be moved only after the parking state is released by pressing the "HOLDON" button when the transfer vehicle is suspended, during the patient transfer process, or when the vehicle is put away after use. When the transfer vehicle is suspended, during the patient transfer process, or when the vehicle is put away after use, press the "HOLDON" button of the parking switch, confirm that the backlight of the switch is on, and gently push the transfer vehicle to test to confirm that the wheels of the transfer vehicle cannot move. The transfer vehicle is in the "parking" state. In any case, when the transfer vehicle is stationary for more than ten minutes, the parking system will automatically start and put the transfer vehicle back into the "parking" state. Before using it again, the parking switch "HOLDOFF" must be pressed again to release the parking state. Lifting switch: Pressing the up and down arrows of the switch can control the hydraulic lifting column 7 of the transfer vehicle to drive the bed surface to move up and down accordingly, so as to align the height of the operating table and the transfer vehicle bed surface or the hospital bed and the transfer vehicle bed surface. The bed surface height can be raised and lowered within the range of 450-800mm. In an emergency, the bed surface height can be manually raised and lowered using the manual lifting crank of the bed body.

[0082] Reference Fig. 9The main power key 39 is installed on the table of the driving operation console 34. The main power key 39 is used to switch the use mode of the transfer vehicle. The use modes of the transfer vehicle include: electric driving mode, electric power-assisted hand-pushing mode and hand-pushing mode; the main power key 39 has three positions of "OFF", "ON" and "EM". Before using the three driving modes of the transfer vehicle, the main power key 39 must be turned to the ON position to connect the power of the transfer vehicle, otherwise the transfer vehicle will be in the parking state by default, the wheels will be locked, and the transfer vehicle cannot move. In an emergency, the transfer vehicle needs to be moved, such as when there is a fault or power shortage, the main power key 39 can be pressed down and turned counterclockwise to the "EM" position. At this time, the transfer vehicle will be forced to release the parking system, so that the transfer vehicle can only be manually pushed like an ordinary transfer vehicle, but at this time all buttons, instruments, steering wheel 41, joystick 32, etc. on the driving console cannot be used, and both the electric mode and the electric power-assisted mode cannot be used. When the emergency state is released and the normal use mode is restored, it is necessary to press and hold the main power key 39 and turn it clockwise to the "ON" or "OFF" position.

[0083] Reference Fig.14 , a data cable storage box 19 is installed on the driving platform booster 46, and the monitor data cable is placed in the data cable storage box 19, and one side of the data cable storage box 19 is connected to an interface panel 59; a data cable storage box 19 is provided on the back of the driving platform booster 46, and the monitor data cable can be taken out by opening the cover on the data cable storage box 19; the data cable includes a five-contact ECG lead wire, a non-invasive blood pressure cuff, an invasive blood pressure data cable, a blood oxygen probe and data cable, and a temperature probe data cable; the interface panel 59 includes: a 6-core ECG lead interface, a non-invasive blood pressure interface, a 12-core invasive blood pressure interface, an 8-core blood oxygen interface, and a 2-core temperature interface.

[0084] Reference Figure 3 and Figure 4 There are two lumbar support lifting rods 45, the bottom ends of the two lumbar support lifting rods 45 are connected to the standing platform 44 through two folding bases, a retractable locking pedal 29 is connected between the two folding bases, the retractable locking pedal 29 is connected to the two lumbar support lifting rods 45, and the tops of the two lumbar support lifting rods 45 are connected to the same lumbar support 42; two support wheels 20 are installed at the bottom of the standing platform 44; when using an electric driving transfer vehicle, the foldable standing platform 44 should be unfolded first, the lumbar support height should be adjusted, and the driving control should be adjusted. The working platform 34 can be adjusted up and down, front and back, so that the driver can drive the transfer vehicle in the most comfortable and safe state; when retracting and unfolding the standing platform 44, confirm that the main power key 39 is in the OFF state, or the parking button in the function switch group 37 is in the parking state. At this time, all wheels are locked and the transfer vehicle cannot move. Hold the waist support with both hands, step on the retractable locking pedal 29 with your foot to unlock the standing platform 44, and at the same time pull the waist support with both hands, release the retractable locking pedal 29, and continue to pull the waist support with both hands until the standing platform 44 is fully unfolded.

[0085] Reference Fig.15 The central control module 63 is embedded in the driving console booster 46. The central control module 63 has a built-in main control chip, which aggregates the information of other modules and processes them comprehensively, controls the coordinated work of each module, and manages the interface system and network system of the transfer vehicle.

[0086] Reference Fig.15 The driving console control system module 60 is embedded in the driving console 34 . The driving console control system module 60 is connected to the central control module 63 . The driving console control system module 60 manages the signal on the driving console 34 and feeds it back to the central control module 63 .

[0087] Reference Fig.15 The booster control system module 61 is embedded in the driver's console booster 46. The booster control system module 61 is connected to the central control module 63. The booster control system module 61 is used to feed back the operator's actions to the central control module 63 during electric power-assisted driving, so as to control the transfer vehicle to perform corresponding actions.

[0088] Reference Fig.15 , an embedded ECG monitor host 62 is embedded in the driving console booster 46, the embedded ECG monitor host 62 is connected to the embedded monitor display 36, the embedded ECG monitor host 62 is used to provide patient monitoring data, and output the embedded monitor display 36 or exchange data with an external monitor; the transfer vehicle is embedded with a monitor, which is used to provide monitoring functions such as ECG lead waveform, heart rate, blood oxygen saturation, blood pressure (both invasive blood pressure and non-invasive blood pressure), respiratory rate and body temperature when transporting patients.

[0089] Reference Fig.15 There are four drive motors 64 installed in the chassis 17, and the four drive motors 64 provide driving force for the four Mecanum wheels 8 respectively.

[0090] Reference Fig.15 The hydraulic system management module 65 is installed in the chassis 17. The hydraulic system management module 65 is used to control the hydraulic system of the lifting and lowering of the transfer bed plate 2 and the driving platform according to instructions.

[0091] Reference Fig.15 , a hydraulic pipeline 66 is installed in the chassis 17 , and the four hydraulic lifting columns 7 are connected to the hydraulic system management module 65 through the hydraulic pipeline 66 .

[0092] Reference Fig.15 , a battery pack 67 is installed in the chassis 17, and the battery pack 67 is used to power the transfer vehicle.

[0093] Reference Fig.15The power management module 68 is installed in the chassis 17. The power management module 68 is connected to the battery pack 67. The central control module 63 is connected to the power management module 68. The power management module 68 is used to control the charging, discharging and heat management of the battery pack 67, and control the power distribution of the drive motor 64 according to the instructions of the central control module 63.

[0094] Reference Fig.15 , a control bus 69 is installed in the chassis 17, and the control bus 69 is used to connect various functional modules.

[0095] The implementation process of the present invention is described in detail below in combination with the explanation of the specific steps: press the two handle locking buttons 10 on the amplitude adjustment handle 11 with your thumbs at the same time and pull it outward. The handle will move outward along the amplitude adjustment guide rail 5 together with the guardrail 4, the extended bed board 25 and other components. The support plate 21 drives the slider to move in the amplitude adjustment guide rail 5. The special curve design of the amplitude adjustment guide rail 5 can make the extended bed board 25 and the transfer bed board 2 on the transfer vehicle have the same height after the guardrail 4 is pulled outward. The folding mattress 3 is opened, and after the patient lies down, the entire fixed mattress 1 can still maintain a consistent overall thickness. When using the folding drip hanging rod 15, loosen the first base knob 49 and pull out the base spring lock 48; rotate the drip rod to a horizontal position, and push the bottom back. The foldable IV rod 15 is rotated to a vertical position, the horizontal and vertical axis spring lock 50 is pushed back, and the horizontal and vertical conversion knob 51 is tightened; the height adjustment knob is loosened, the foldable IV rod 15 is adjusted to the required height, and the height adjustment knob is tightened; the top hook 13 of the IV rod is opened, and when the oxygen cylinder holder 6 is used, the second base knob 54 and the folding arm knob 56 are loosened, and the position of the oxygen cylinder holder 6 can be adjusted by rotating the folding arm, and then the second base knob 54 and the folding arm knob 56 are tightened; the oxygen cylinder fixing knob 57 is loosened, and the oxygen cylinder is inserted horizontally and tightened, and it is confirmed again that the outer edge of the oxygen cylinder does not exceed the outer edge of the transport vehicle. The outer edge of the transfer bed board 2, otherwise, readjust the position of the oxygen cylinder according to step 1. The diameter of the oxygen cylinder that can be placed is 100-120mm; if the oxygen cylinder needs to be placed vertically, it is necessary to place the oxygen cylinder horizontally first, then loosen the horizontal and vertical adjustment knobs 55, rotate the oxygen cylinder bracket 6 to vertical, and tighten the horizontal and vertical adjustment knobs 55. When using the hand-push mode, first turn on the main power key 39 to the "ON" position, then press the parking switch in the function switch group 37 to release the parking state, select the manual mode of the mode button in the function switch group 37, and you can use it to manually push the transfer vehicle like an ordinary transfer vehicle; when using the electric power mode, first turn on the main power key 39 to the "ON" position, then press the function switch group The parking switch in 37 releases the parking state, and the electric mode of the mode button in the function switch group 37 can be selected to use the electric power-assist mode to push the transfer vehicle. When using the electric driving transfer vehicle, the folded standing platform 44 should be unfolded first, the height of the lumbar support should be adjusted, and the up and down front and back positions of the driving operating platform 34 should be adjusted so that the driver can drive the transfer vehicle in the most comfortable and safe state. Hold the lumbar support firmly with both hands, and step on the retractable locking pedal 29 with your foot to unlock the standing platform 44. At the same time, pull the lumbar support hard with both hands, release the retractable locking pedal 29, and continue to pull the lumbar support with both hands until the standing platform 44 is fully unfolded, place the patient on the transfer vehicle, and use the patient fixing belt 24 to fix the patient on the transfer vehicle, and then the patient can be transferred.

[0096] In summary, compared with the prior art, the present invention has the following beneficial effects:

[0097] 1. The transport vehicle adopts a drawer-type variable bed width and guardrail 4, which can make the bed width of the transport vehicle variable between 500-800mm to adapt to the transport of patients with larger body size or special body positions.

[0098] 2. The transfer vehicle can be operated in three modes: electric, electric power and manual push.

[0099] 3. The transfer vehicle has four built-in motors that drive four Mecanum wheels 8 respectively, so that the transfer vehicle can achieve ultra-small radius turns, right-angle turns, on-the-spot U-turns, slewing with the front or rear wheels as the fulcrum, and parallel movement. When using the electric driving mode and the electric power-assist mode, the uphill and downhill passing angle is ≤15° (which can pass the 1:12 slope requirement of barrier-free facilities), and the speed of the transfer vehicle going up and down the slope will not be affected by inertia and change the speed.

[0100] 4. The transport vehicle is equipped with a simple ECG monitor, a built-in multi-function monitor display and an external monitor interface, which can directly monitor the patient's ECG. It can also be connected to an external monitor to display the monitoring data on the built-in multi-function monitor display, so that the operator can instantly grasp the patient's status when operating the transport vehicle.

[0101] 5. The transfer vehicle has reserved a variety of data interfaces, providing the possibility for realizing semi-automatic assisted driving, automatic driving, automatic parking and return, and integration into the hospital information system in the future. The transfer vehicle has a reasonable design, simple structure, flexible operation mode and strong driving adaptability.

[0102] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0103] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medical multifunctional variable bed width transport vehicle, comprising a transport bed board (2), characterized in that: Also includes: An extended bed plate (25) and a variable amplitude guide rail (5); The variable-length guide rail (5) is arranged at the bottom of the transfer bed board (2), the extended bed board (25) is slidably connected to the variable-length guide rail (5), and the variable-length guide rail (5) provides a movement path for the expansion or storage of the extended bed board (25).

2. The multifunctional medical variable bed width transport vehicle according to claim 1, characterized in that: There are two of each of the extended bed board (25) and the amplitude-changing guide rail (5), and the two amplitude-changing guide rails (5) are symmetrically arranged at the bottom of the transfer bed board (2), and the two extended bed boards (25) are respectively slidably connected to the two amplitude-changing guide rails (5).

3. The multifunctional medical variable bed width transport vehicle according to claim 2, characterized in that: An inner elbow is provided at one end of the variable amplitude guide rail (5), the bending direction of the inner elbow is toward the middle position of the transfer bed plate (2), and a limiting structure is provided at the end of the inner elbow.

4. The multifunctional medical variable bed width transport vehicle according to claim 1, characterized in that: The transfer vehicle also includes: A fixed mattress (1) arranged on the top surface of the transfer bed board (2); A folding mattress (3) movably connected to the side of the fixed mattress (1); A guardrail (4) arranged on one side of the extended bed board (25); The chassis (17) is arranged below the transfer bed plate (2).

5. The multifunctional medical variable bed width transport vehicle according to claim 1, characterized in that: The transfer vehicle also includes: At least two foldable IV hanging rods (15), respectively folded and arranged at the head and foot of the transfer bed board (2); An oxygen cylinder support (6) is arranged at the head of the transfer bed board (2).

6. The multifunctional medical variable bed width transport vehicle according to claim 4, characterized in that: The chassis (17) comprises: A driving operation platform (34) is arranged at the end of the transfer bed board (2), and the driving operation platform (34) is connected to the chassis (17) via a driving platform booster (46); A standing platform (44), the standing platform (44) being folded and arranged on one side of the chassis (17); A hydraulic lifting column (7), the hydraulic lifting column (7) is installed on the chassis (17), the top end of the hydraulic lifting column (7) is connected to the transfer bed plate (2), and the hydraulic lifting column (7) is provided with a bed lifting crank (27); A bed support beam (28), wherein the bed support beam (28) is installed at the bottom of the transfer bed board (2), and the top end of the hydraulic lifting column (7) is connected to the bed support beam (28), and the hydraulic lifting column (7) is used to adjust the height of the transfer bed board (2).

7. The multifunctional medical variable bed width transport vehicle according to claim 1, characterized in that: The transfer bed plate (2) comprises: A headboard connected to the transfer bed board (2) via a hinge; Patient fixing belts (24) are respectively mounted on the transfer bed board (2) and the headboard; A bed head pitching pneumatic rod (23), one end of which is mounted on the bottom of the transfer bed board (2), and the other end of which is mounted on the bottom of the bed head board; A bed head pitch adjustment handle (26) is installed on the bed headboard, and the bed head pitch adjustment handle (26) is connected to the bed head pitch pneumatic rod (23).

8. The multifunctional medical variable bed width transport vehicle according to claim 4, characterized in that: The guardrail (4) comprises: A luffing handle (11) installed on one side of the guardrail (4); A handle locking button (10) is installed on the luffing handle (11); A locker (30) is mounted on the guardrail (4), the guardrail (4) is connected to the extended bed board (25) through the locker (30), and the locker (30) is configured so that when the guardrail (4) is unlocked, the guardrail (4) can rotate along its own axis, and when the locker (30) is locked, the guardrail (4) is fixed on the extended bed board (25); A crossbar (14) is installed on one side of the guardrail (4); a hook (13) is connected to the crossbar (14); the number of the hooks (13) is at least two; and the hooks (13) are arranged to move left and right along the direction of the crossbar (14).

9. The multifunctional medical variable bed width transport vehicle according to claim 6, characterized in that: The driving console (34) comprises: A hand push handle (35) is installed on the side of the driving operation platform (34), and an electric power assist button (38) is provided on the hand push handle (35); A driving platform position adjustment button (43) is installed on the side of the driving operating platform (34), and the driving platform position adjustment button (43) is used to adjust the position of the driving operating platform (34) in four directions: up, down, front and back; A driving warning light (31) is installed on the surface of the driving operation platform (34), and the driving warning light (31) is used to light up when the transfer vehicle moves; A joystick (32) is mounted on the surface of the driving operation platform (34), and the joystick (32) is used to control the movement of the transfer vehicle; An emergency stop button (33) is mounted on the surface of the driving operation console (34), and the emergency stop button (33) is used to stop the transfer vehicle urgently when pressed; An embedded monitor display (36) is installed on the tabletop of the driving operation console (34), and the embedded monitor display (36) is used to display the working status of the transport vehicle and the monitoring information of the patient; A function switch group (37), wherein the function switch group (37) is mounted on the surface of the driving operation panel (34); A main power key (39) is installed on the surface of the driving operation table (34), and the main power key (39) is used to switch the use mode of the transfer vehicle, and the use mode of the transfer vehicle includes: electric driving mode, electric power-assisted hand-pushing mode and hand-pushing mode; A steering wheel (41) is mounted on the tabletop of the driving operation table (34). A power handle (40) is mounted on the steering wheel (41). The steering wheel (41) is used to control the driving direction of the transfer vehicle.

10. The multifunctional medical variable bed width transport vehicle according to claim 9, characterized in that: The transfer vehicle also includes: A central control module (63) is embedded in the driving platform booster (46). The central control module (63) has a built-in main control chip, which collects information from other modules and processes it comprehensively, controls the coordinated work of each module, and manages the interface system and network system of the transfer vehicle at the same time; A driving console control system module (60) is embedded in the driving console (34), the driving console control system module (60) is connected to a central control module (63), and the driving console control system module (60) manages the signal on the driving console (34) and feeds it back to the central control module (63); A booster control system module (61) is embedded in the driving platform booster (46), the booster control system module (61) is connected to a central control module (63), and the booster control system module (61) is used to feed back the operator's actions to the central control module (63) during electric power-assisted driving, so as to control the transfer vehicle to perform corresponding actions; An embedded ECG monitor host (62) is embedded in the driving console booster (46), the embedded ECG monitor host (62) is connected to the embedded monitor display (36), and the embedded ECG monitor host (62) is used to provide patient monitoring data and output the embedded monitor display (36) or exchange data with an external monitor; A control bus (69) is installed in the chassis (17), and the control bus (69) is used to connect various functional modules.

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