Lifting device and movable critical care unit medical vehicle

Abstract

The utility model belongs to the technical field of medical equipment, and provides a lifting device and a movable critical care unit medical vehicle, the lifting device comprises a rack, a lifting platform, a telescopic driving mechanism for driving the lifting platform to extend out of or retract into the vehicle, and a lifting driving mechanism for driving the lifting platform to lift; the rack is mounted in the movable critical care unit medical vehicle; the movable critical care unit medical vehicle is provided with a transfer special door, and the lifting platform is in butt joint with the transfer special door so that a patient can get on and off the vehicle without barriers. Under the driving of the lifting driving mechanism, the lifting platform can descend to the ground and can ascend to the height corresponding to the height of the platform in the vehicle; in an initial state, the height of the lifting platform corresponds to the height of the foldable stretcher bed and is between the height of the ground and the height of the in-vehicle platform. The lifting device is particularly suitable for getting-on and getting-off transportation of patients of a movable critical care unit medical vehicle, is flexible in lifting and can adapt to different getting-on and getting-off modes.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the medical equipment technical field, concretely relates to a lifting device and mobile critical care unit medical car. BACKGROUND

[0002] The mobile critical care unit medical car provides convenience and medical security for the rescue and transfer of patients, the disabled and the like, and especially a medical security bus, which has the characteristics of large interior space, complete equipment, timely rescue, convenient transfer and the like.

[0003] In order to solve the problem that the patient is inconvenient to get on the bus when being transferred by the mobile critical care unit medical car, the stretcher or wheelchair is generally assisted to get on the bus by using auxiliary equipment, so that the patient does not need to leave the stretcher or wheelchair, and the convenience of getting on and off the bus is improved. However, there is a lack of a lifting device applied to the mobile critical care unit medical car and capable of meeting multiple getting-on modes such as the stretcher and the wheelchair. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a lifting device, which is especially suitable for the getting-on and off of the bus of the patient of the mobile critical care unit medical car and has the characteristics of flexible lifting and adaptability to different getting-on and off modes.

[0005] The utility model solves the technical problems by adopting the following technical scheme:

[0006] A lifting device, comprising a rack, a lifting table, an extension and retraction drive mechanism for driving the lifting table to extend or retract into a bus, and a lifting drive mechanism for driving the lifting table to lift;

[0007] The rack is installed in the bus of the mobile critical care unit medical car; the mobile critical care unit medical car is provided with a transfer special door, and the lifting table is connected with the transfer special door to realize the barrier-free getting-on and off of the patient;

[0008] Under the driving of the lifting drive mechanism, the lifting table can land on the ground and can be lifted to the height corresponding to the platform in the bus; in the initial state, the height of the lifting table is between the height of the ground and the platform in the bus.

[0009] One preferred scheme of the utility model further comprises a moving frame; the moving frame is movably arranged on the rack;

[0010] The lifting table is connected with the moving frame through the lifting drive mechanism; the extension and retraction drive mechanism drives the moving frame to extend or retract to drive the lifting table to move.

[0011] Preferably, the moving frame comprises a moving table and two connecting rods respectively located on two sides of the moving table; the two connecting rods extend in the direction in which the mobile critical care unit ambulance extends.

[0012] Preferably, the lifting driving mechanism comprises two linkage assemblies and a first power source, the first power source is arranged on the moving table, and the two linkage assemblies are respectively located on two sides of the lifting table.

[0013] Each of the linkage assemblies comprises a driving rod, a first linkage rod and a second linkage rod; a rotating shaft is arranged between the two connecting rods, the rotating shaft is rotationally connected with the two connecting rods and is located at one end of the connecting rod close to the moving table.

[0014] One end of the driving rod of each of the linkage assemblies is fixedly connected with the rotating shaft, and the other end is movably connected with one end of the lifting table away from the moving table; one end of the first linkage rod is rotationally connected with one end of the lifting table close to the moving table, and the other end is rotationally connected with the middle part of the driving rod; one end of the second linkage rod is rotationally connected with the middle part of the driving rod, and the other end is movably connected with one end of the connecting rod away from the moving table on the same side of the lifting table.

[0015] The first power source is used for driving the rotating shaft to rotate to drive the driving rod to rotate, and the linkage assemblies are combined to drive the lifting table to perform lifting movement.

[0016] Preferably, two sides of one end of the lifting table away from the moving frame are each provided with a first connecting hole, the first connecting hole is in the shape of an oblong; and the end part of the driving rod is movably connected in the first connecting hole.

[0017] One end of each of the two connecting rods away from the moving frame is provided with a second connecting hole, the second connecting hole is in the shape of an oblong; and one end part of the second linkage rod is movably connected in the second connecting hole.

[0018] Preferably, the first power source comprises a hydraulic motor and a hydraulic assembly; the hydraulic assembly comprises a hydraulic cylinder and a hydraulic rod, the hydraulic cylinder is connected with the hydraulic motor through a pipeline, and the hydraulic rod is connected with the rotating shaft.

[0019] In one preferred embodiment of the utility model, the telescopic driving mechanism comprises a second power source, a gear and a rack; the second power source is installed on the moving frame and is used for driving the gear to rotate; the rack is installed on the frame and extends in the extending and retracting direction of the lifting table; and the gear is connected with the rack in a matching mode.

[0020] Preferably, the rack is provided with a track corresponding to both sides of the moving frame, the track extending along the moving direction of the lifting platform; the moving frame is provided with a pulley corresponding to both sides and the two connecting rods; the pulleys are arranged on the track.

[0021] In one preferred embodiment of the utility model, the lifting platform is provided with an extension plate at one end close to the door, and the extension plate is rotatably connected to the lifting platform.

[0022] Another object of the utility model is to provide a mobile critical care unit ambulance.

[0023] The mobile critical care unit ambulance comprises the lifting device, the lifting device is arranged in the vehicle body, and the extension and retraction direction of the lifting platform on the lifting device is perpendicular to the length direction of the vehicle body.

[0024] Compared with the prior art, the utility model has the advantages of:

[0025] The lifting device of the utility model can adapt to various boarding modes, has good flexibility and strong adaptability, and is especially suitable for critical patients who can only use a wheelchair or even lie flat to board the vehicle for treatment and rescue. For example, when a stretcher or wheelchair needs to be directly pushed onto the lifting platform from the ground, the lifting platform can be driven to extend the mobile critical care unit ambulance by the telescopic driving mechanism, and then the lifting platform can be driven to descend to the ground by the lifting driving mechanism, so that the stretcher or wheelchair can be directly pushed onto the lifting platform, and then the lifting platform can be driven to the corresponding height of the platform in the vehicle by the lifting driving mechanism and the telescopic driving mechanism. At this time, the stretcher or wheelchair and the patient can be directly pushed into the vehicle. When a foldable stretcher bed is used to transport a patient, the lifting platform can be driven to extend the mobile critical care unit ambulance by the telescopic driving mechanism, and since the initial state of the lifting platform is already at a certain height, which can be preferably set to correspond to the height of the foldable stretcher bed, the foldable stretcher bed can be directly pushed onto the lifting platform when the foldable stretcher bed is in a trolley use state. The supporting legs of the foldable stretcher bed are folded at the same time during the pushing process, so that the stretcher bed and the patient can be conveniently and quickly pushed onto the lifting platform, and when the lifting platform is raised to the corresponding height in the vehicle, the supporting legs of the foldable stretcher bed can be unfolded and pushed into the vehicle. The advantage of this is that the foldable stretcher bed is folded by the supporting legs when the lifting platform is raised, so that the height of the foldable stretcher bed is reduced, and the foldable stretcher bed is in a folded use state on the lifting platform, which is beneficial to improve stability and safety. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor.

[0027] Figure 1 It is a front view of the lifting device of the present application.

[0028] Figure 2 It is a perspective view of the lifting device of the present application (the lifting platform is in the raised state).

[0029] Figure 3 It is a perspective view of the lifting device of the present application after hiding the lifting platform and the linkage assembly.

[0030] Figure 4 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle.

[0031] Figure 5 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle. Figure 4

[0032] It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle. Figure 6 Figure 5 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle.

[0033] Figure 7 Figure 5 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle.

[0034] Figure 8 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle. Figure 5

[0035] It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle. Figure 9 Figure 5 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle.

[0036] Figure 10 Figure 8 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle.

[0037] Figure 11 It is a schematic view of the lifting device of the present application installed on the mobile critical rescue unit medical vehicle. Figure 9

[0038]

[0039] ​​​​​​1-frame, 2-lifting platform, 3-first linkage rod, 4-second linkage rod, 5-driving rod, 6-rack, 7-gear, 8-second power source, 9-hydraulic cylinder, 10-connector, 11-hydraulic rod, 12-hydraulic motor, 13-rail, 14-pulley, 15-first plate, 16-second plate, 17-first connecting hole, 18-second connecting hole, 19-moving platform, 20-connecting rod, 21-rotation shaft, 22-in-vehicle platform. DETAILED DESCRIPTION

[0040] In order to more clearly understand the above objectives, features and advantages of the present application, the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments and features in the embodiments can be combined with each other without conflict. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. The described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the specification of the present application is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0042] Example 1

[0043] Referring to Figures 1-3 The lifting device disclosed in the present embodiment can be applied to a mobile critical care unit ambulance, provides convenience for the loading and unloading of stretchers and wheelchairs, and can have multiple use modes and be flexible and convenient. The lifting device of the present embodiment includes a frame 1, a lifting platform 2, an extension driving mechanism for driving the extension or retraction of the lifting platform 2 into or out of the vehicle, and a lifting driving mechanism for driving the lifting of the lifting platform 2. The frame 1 is installed in the vehicle of the mobile critical care unit ambulance. The mobile critical care unit ambulance is provided with a special transfer door, and the lifting platform 2 is connected to the special transfer door to realize the barrier-free loading and unloading of patients. Under the driving of the lifting driving mechanism, the lifting platform 2 can be lowered to the ground and raised to a height corresponding to the in-vehicle platform 22. In the initial state, the height of the lifting platform 2 corresponds to the height of the foldable stretcher bed, and is located between the height of the ground and the height of the in-vehicle platform 22.

[0044] Further, for the convenience of moving the lifting platform 2, the lifting device of the embodiment further comprises a moving frame; the moving frame is movably arranged on the frame 1; the lifting platform 2 is connected with the moving frame through a lifting driving mechanism; the telescopic driving mechanism drives the moving frame to extend or retract to drive the lifting platform 2 to move. The moving frame comprises a moving table 19 and two connecting rods 20 respectively located at two sides of the moving table 19; the two connecting rods 20 extend in the direction of extending the critical care ambulance. The lifting driving mechanism comprises two linkage assemblies and a first power source, the first power source is arranged on the moving table 19, and the two linkage assemblies are respectively located at two sides of the lifting platform 2; each linkage assembly comprises a driving rod 5, a first linkage rod 3 and a second linkage rod 4; a rotating shaft 21 is arranged between the two connecting rods 20, the rotating shaft 21 is rotatably connected with the two connecting rods 20 and is located at one end of the connecting rod 20 close to the moving table 19; one end of the driving rod 5 of each linkage assembly is fixedly connected with the rotating shaft 21, and the other end is movably connected with one end of the lifting platform 2 away from the moving table 19; one end of the first linkage rod 3 is rotatably connected with one end of the lifting platform 2 close to the moving table 19, and the other end is rotatably connected with the middle part of the driving rod 5; one end of the second linkage rod 4 is rotatably connected with the middle part of the driving rod 5, and the other end is movably connected with one end of the connecting rod 20 away from the moving table 19 and located at the same side of the lifting platform 2; the first power source is used to drive the rotating shaft 21 to rotate to drive the driving rod 5 to rotate, and in combination with the linkage assembly, the lifting platform 2 is caused to move up and down.

[0045] Referring to Figures 1-3 , both sides of one end of the lifting platform 2 away from the moving frame are provided with first connecting holes 17, the first connecting holes 17 are long circular; the end part of the driving rod 5 is movably connected in the first connecting hole 17; both ends of the connecting rod 20 away from the moving frame are provided with second connecting holes 18, the second connecting holes 18 are long circular; one end part of the second linkage rod 4 is movably connected in the second connecting hole 18.

[0046] By arranging such linkage assemblies, under the driving of the first power source, the rotating shaft 21 drives the driving rod 5 to rotate clockwise or counterclockwise to drive the lifting platform 2 to move up and down. Moreover, through such linkage assemblies, when the driving rod 5 rotates clockwise, the lifting platform 2 can be lowered to a height lower than the initial position, for example, the lifting platform 2 can be controlled to be lowered to the ground height, so that the stretcher or wheelchair can be directly pushed onto the lifting platform 2, and the lifting platform 2 can reach different heights, which is convenient for the transfer of patients to get on or off the vehicle.

[0047] Referring to Figures 1-3, the first power source comprises a hydraulic motor 12 and a hydraulic assembly; the hydraulic assembly comprises a hydraulic cylinder 9 and a hydraulic rod 11, the hydraulic cylinder 9 is connected with the hydraulic motor 12 through a pipeline, and the hydraulic rod 11 is connected with the rotating shaft 21. Further, the hydraulic rod 11 in the embodiment is connected with the rotating shaft 21 through a connecting piece 10 and the rotating shaft 21; wherein the connecting piece 10 is rotatably connected with the hydraulic rod 11, and the connecting piece 10 is fixedly connected with the rotating shaft 21. In addition, in order to improve the stability of the lifting drive of the lifting platform 2, two hydraulic assemblies are arranged in the embodiment, which are respectively located on the two sides of the hydraulic motor 12, and drive the two ends of the rotating shaft 21 to ensure the power and stability.

[0048] As another embodiment, the first power source can also adopt other modes, such as the cylinder driving mode, the push rod driving mode or the screw rod driving mode in the prior art, and specific reference can be made to the prior art.

[0049] Referring to Figures 1-3 , the telescopic driving mechanism comprises a second power source 8, a gear 7 and a rack 6; the second power source 8 is installed on the moving frame and is used to drive the gear 7 to rotate; the rack 6 is installed on the rack 1 and extends along the extension and retraction direction of the lifting platform 2; the gear 7 is connected with the rack 6 in a matched mode. In the embodiment, the telescopic driving mechanism is provided with two, which are respectively located on the two sides of the moving platform 19, and the second power source 8 can adopt a motor, and specific reference can be made to Figure 3 . In addition to the matched transmission mode of the gear 7 and the rack 6, the telescopic driving mechanism in the embodiment can also adopt the transmission mode of the screw rod and the nut, and the embodiment is not limited thereto.

[0050] Referring to Figures 1-3 , the rack 1 and the two sides of the moving frame are provided with rails 13 corresponding to each other, and the rails 13 extend along the moving direction of the lifting platform 2; the two sides of the moving frame and the two connecting rods 20 are provided with pulleys 14 corresponding to each other; and the pulleys 14 are arranged on the rails 13 in a matched mode. Specifically, the pulleys 14 in the embodiment are provided with two groups, the two groups of pulleys 14 can be connected through connecting rods and the two pulleys 14 in the same group rotate synchronously, and the pulleys 14 on the connecting rods 20 can be arranged individually. Through the arrangement of the pulleys 14 and the rails 13, the moving frame forms a trolley structure and slides on the rack 1, so as to drive the lifting platform 2 to extend and retract and move the critical rescue unit medical vehicle to realize the pick-up and drop-off of patients.

[0051] The end of the lifting platform 2 close to the door in the embodiment is provided with an extension plate, and one side of the extension plate is rotatably connected with the lifting platform 2. Referring to Figures 1-2 , the extension plate in the embodiment comprises a first plate 15 and a second plate 16, the first plate 15 is rotatably connected with the lifting platform 2, the second plate 16 is rotatably connected with the first plate 15, and the second plate 16 is arranged in an inclined mode, so as to push the wheelchair or the stretcher onto the lifting platform 2. The rotatable connection structure of the first plate 15 and the second plate 16 can refer to the prior art.

[0052] To further improve the safety of the lifting device, handrail assemblies can be provided on both sides of the lifting platform 2, which can be set to a foldable mode. For example, in the folded state, the handrail assemblies on both sides of the lifting platform 2 are folded on the surface of the lifting platform 2, so that the lifting platform 2 is retracted into the vehicle body; when it is needed to be unfolded, the handrail assemblies can be manually or automatically unfolded to stand on both sides of the lifting platform 2, providing safety protection for the lifting of the stretcher or wheelchair.

[0053] Referring to Figures 4-11 , the embodiment also discloses a mobile intensive care unit medical vehicle, which comprises the lifting platform 2. Figure 4 and Figure 5 As shown in the drawings, the mobile intensive care unit medical vehicle of the embodiment adopts a bus form, and the lifting device is arranged in the vehicle body, and the extension and retraction directions of the lifting platform 2 on the lifting device are perpendicular to the length direction of the vehicle body.

[0054] Referring to Figure 6 , the drawing shows a schematic view in which the lifting platform 2 extends out of the vehicle body, and the extension plate is in a folded storage state; referring to Figure 7 , the extension plate is in an unfolded state, and since the height of the lifting platform 2 corresponds to the height of the foldable stretcher bed at this time, the lifting platform 2 can be adapted to the foldable stretcher bed, and the foldable stretcher bed can be directly placed on the lifting platform 2; referring to Figure 8 and Figure 9 , the lifting platform 2 is lowered to the ground, so that the stretcher bed or wheelchair can be directly pushed onto the lifting platform 2; then, referring to Figure 10 and Figure 11 , under the action of the telescopic driving mechanism and the lifting driving mechanism, the lifting platform 2 is lifted and connected with the platform 22 in the vehicle, and at this time, the stretcher bed and the wheelchair can be pushed into the vehicle.

[0055] The above is only a preferred embodiment of the present application, and does not limit the present application in any form, so any modification, equivalent change and modification of the above embodiment according to the technical essence of the present application, which does not deviate from the technical solution content of the present application, still belongs to the scope of the technical solution of the present application.

Claims

1. A lifting device, characterized in that The rack, the lifting platform, a telescopic driving mechanism for driving the lifting platform to extend or retract in the vehicle, and a lifting driving mechanism for driving the lifting platform to lift or lower; The rack is installed in a mobile critical care unit ambulance, and the lifting platform is connected to a special door for transfer of the mobile critical care unit ambulance to realize barrier-free getting on and off the vehicle for patients. Under the driving of the lifting driving mechanism, the lifting platform can be lowered to the ground and raised to a height corresponding to a platform in the vehicle. In the initial state, the height of the lifting platform is between the height of the ground and the height of the platform in the vehicle.

2. The lift device of claim 1, wherein, The mobile rack is movably arranged on the rack. The lifting platform is connected to the mobile rack through the lifting driving mechanism, and the telescopic driving mechanism drives the mobile rack to extend or retract to move the lifting platform.

3. The lift device of claim 2, wherein, The mobile rack comprises a mobile platform and two connecting rods arranged on both sides of the mobile platform, and the two connecting rods extend in the direction of extending the mobile critical care unit ambulance.

4. The lift device of claim 3, wherein, The lifting driving mechanism comprises two linkage assemblies and a first power source, the first power source is arranged on the mobile platform, and the two linkage assemblies are arranged on both sides of the lifting platform. Each linkage assembly comprises a driving rod, a first linkage rod, and a second linkage rod. A rotating shaft is arranged between the two connecting rods, and the rotating shaft is rotatably connected to the two connecting rods and arranged at one end of the connecting rod close to the mobile platform. One end of the driving rod of each linkage assembly is fixedly connected to the rotating shaft, and the other end is movably connected to one end of the lifting platform away from the mobile platform.

5. The lift device of claim 4, wherein, One end of the first linkage rod is rotatably connected to one end of the lifting platform close to the mobile platform, and the other end is rotatably connected to the middle part of the driving rod. One end of the second linkage rod is rotatably connected to the middle part of the driving rod, and the other end is movably connected to one end of the connecting rod away from the mobile platform on the same side of the lifting platform.

6. Lift according to claim 4 or 5, characterized in that The first power source is used to drive the rotating shaft to rotate to drive the driving rod to rotate, and the linkage assembly is combined to drive the lifting platform to lift or lower.

7. The lift device of claim 3, wherein, Both sides of one end of the lifting platform away from the mobile rack are provided with first connecting holes in the shape of an oblong, and the end of the driving rod is movably connected in the first connecting hole. Both ends of the connecting rod away from the mobile rack are provided with second connecting holes in the shape of an oblong, and one end of the second linkage rod is movably connected in the second connecting hole. The first power source comprises a hydraulic motor and a hydraulic assembly, the hydraulic assembly comprises a hydraulic cylinder and a hydraulic rod, the hydraulic cylinder is connected to the hydraulic motor through a pipeline, and the hydraulic rod is connected to the rotating shaft. The telescopic driving mechanism comprises a second power source, a gear, and a rack, the second power source is installed on the mobile rack and used to drive the gear to rotate, the rack is installed on the rack and extends in the direction of extending or retracting the lifting platform, and the gear is connected to the rack in a matched mode.

8. The lift device of claim 7, wherein, The rack and the two sides of the moving frame are provided with tracks corresponding to each other, the tracks extend along the moving direction of the lifting platform; the two sides of the moving frame and the two connecting rods are provided with pulleys corresponding to each other; the pulleys are matched and arranged on the tracks.

9. The lift device of claim 1, wherein, One end of the lifting platform close to the door is provided with an extension plate, one side of the extension plate is rotationally connected with the lifting platform.

10. A mobile critical care ambulance unit comprising: The lifting device comprises the lifting device according to any one of claims 1-9; the lifting device is arranged in a vehicle body, and the extension and retraction direction of the lifting platform on the lifting device is perpendicular to the length direction of the vehicle body.

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