Sickbed convenient to push, pull and turn

Abstract

The utility model provides a sickbed convenient to push, pull and steer, which relates to the technical field of sickbeds and comprises a bed body, a group of front wheels, a group of rear wheels and a front wheel steering control mechanism, a front wheel carrier and a rear wheel carrier are arranged at the front end and the rear end of the bed body, and the group of front wheels are horizontally and rotatably connected to the two ends of the front wheel carrier through steering bodies respectively. The rear wheels are horizontally and rotatably connected to the two ends of the rear wheel frame through steering bodies respectively, a handle is arranged on a tail plate of the bed body, the front wheel steering control mechanism comprises a connecting rod assembly, a rotating shaft and an operating rod, the operating rod is arranged on the rotating shaft, the rotating shaft is vertically pivoted to the handle through a bearing, and the connecting rod assembly is arranged on the rotating shaft. And the rotating shaft is linked with the steering bodies of the two front wheels through a connecting rod assembly. According to the sickbed convenient to push, pull and steer, steering control over the two front wheels of the sickbed is linked to the rear portion of the sickbed body through the connecting rod assembly, when an accompanying person needs to turn in the sickbed pushing process, the control rod can be rotated to control steering of the front wheels, and compared with an existing mode that the direction of the sickbed is controlled by twisting the sickbed, steering control is more convenient and accurate; labor is saved, and convenience is achieved.

Description

Technical Field

[0001] This utility model relates to the field of hospital bed technology, specifically a hospital bed that is easy to push, pull, and turn. Background Technology

[0002] Hospitals often have a large number of patients. For critically ill patients or those unable to use wheelchairs, moving beds is necessary when changing wards or for examinations and treatments. Current hospital beds use four swivel casters to control the direction of movement, theoretically increasing flexibility. However, in practice, this often increases the difficulty of operation. Because the four casters are not aligned, the intersecting directions of movement create shear forces, requiring multiple points of support to maintain consistency in the direction of the four wheels. Furthermore, the weight of the bed is even greater when the patient is on it, necessitating multiple people to assist in moving the bed. Typically, two people are needed, one pulling the bed in front to change direction, and the other pushing it from behind to turn and move it forward. When there is only one person pushing the bed, turning becomes extremely difficult. Currently, hospital caregivers are usually limited to one person. When moving the bed is necessary, patients often need to add a caregiver or find someone to help, causing considerable inconvenience to both patients and their families. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, this utility model provides a hospital bed that is easy to push, pull and turn, thus solving the problems mentioned in the background art.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hospital bed that is easy to push, pull, and turn, comprising a bed frame, a set of front wheels, a set of rear wheels, and a front wheel steering control mechanism. The front and rear ends of the bed frame are provided with front wheel frames and rear wheel frames. A set of front wheels is horizontally rotatably connected to both ends of the front wheel frames via steering bodies, and a set of rear wheels is horizontally rotatably connected to both ends of the rear wheel frames via steering bodies. A handle is provided on the tailboard of the bed frame. The front wheel steering control mechanism includes a linkage assembly, a rotating shaft, and a control lever. The control lever is mounted on the rotating shaft, which is vertically pivotally connected to the handle via a bearing. The rotating shaft is linked to the steering bodies of the two front wheels via the linkage assembly.

[0007] Preferably, the linkage assembly includes a linkage plate, a connecting rod, a rotating plate, and two sets of steering crank arms and tie rods. The linkage plate is quadrilateral, with one corner rotatably connected to the front wheel frame. One end of the rotating plate is rotatably connected to the rear wheel frame coaxially with the rotating shaft, and the other end is hinged to the linkage plate via the connecting rod. One end of each of the two steering crank arms is hinged to a steering body, and the other end is hinged to the linkage plate via the tie rod.

[0008] Preferably, a hub motor is provided on the rear wheel axle, and a button for controlling the hub motor is provided on the handle.

[0009] Preferably, gears are coaxially connected to the steering shafts of the two rear wheels, and the two gears are connected by a chain drive.

[0010] (III) Beneficial Effects

[0011] This invention provides a hospital bed that is easy to push, pull, and turn. It has the following beneficial effects:

[0012] 1. This easy-to-push-pull and-turn hospital bed links the steering control of the two front wheels to the rear of the bed via a linkage assembly. If the caregiver needs to turn while pushing the bed, they can turn the control lever to control the steering of the front wheels. Compared with the existing method of controlling the direction of the bed by twisting the bed, the steering control is more convenient and precise, saving both effort and convenience.

[0013] 2. This easy-to-push-pull and-turn hospital bed features hub motors on the two rear wheels, with control buttons located on the handles. During pushing, the hub motors assist in movement, saving thrust. Attached Figure Description

[0014] Figure 1 This is an overall isometric view of the present invention;

[0015] Figure 2 This is a schematic diagram of the front wheel steering control mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the bottom of the rear wheel frame of this utility model.

[0017] In the diagram: 1 Bed frame, 2 Front wheel, 3 Front wheel frame, 4 Rear wheel, 5 Rear wheel frame, 6 Linkage plate, 7 Steering body, 8 Steering crank arm, 9 Tie rod, 10 Linkage, 11 Rotating plate, 12 Rotating shaft, 13 Control lever, 14 Handle, 15 Hub motor, 16 Button, 17 Gear, 18 Chain. Detailed Implementation

[0018] This utility model embodiment provides a hospital bed that is easy to push, pull, and turn, such as Figure 1-3As shown, the system includes a bed 1, a set of front wheels 2, a set of rear wheels 4, and a front wheel steering control mechanism. Front wheel frames 3 and rear wheel frames 5 are located at the front and rear ends of the bed 1. The front wheels 2 and rear wheels 4 are rotatably connected to a steering body 7 via bearings. The set of front wheels 2 is horizontally rotatably connected to both ends of the front wheel frame 3 via the steering body 7, and the set of rear wheels 4 is horizontally rotatably connected to both ends of the rear wheel frame 5 via the steering body 7. The horizontal rotation of the steering body 7 controls the steering of either the front wheels 2 or the rear wheels 4.

[0019] like Figure 1 As shown, a handle 14 is provided on the tailboard of the bed 1, which is used to push the bed. The front wheel steering control mechanism includes a linkage assembly, a rotating shaft 12, and a control lever 13. The control lever 13 is mounted on the rotating shaft 12 and can be hinged to the rotating shaft 12. When the control lever 13 is not in use, it can be folded up or down for storage. A bearing seat is provided in the middle of the handle 14, and the rotating shaft 12 is vertically pivotally connected to the bearing seat of the handle 14 through the bearing. The rotating shaft 12 is linked to the steering body 7 of the two front wheels 2 through the linkage assembly.

[0020] like Figure 2 As shown, specifically, the linkage assembly includes a linkage plate 6, a connecting rod 10, a rotating plate 11, and two sets of steering crank arms 8 and tie rods 9. The linkage plate 6 is quadrilateral, with one corner rotatably connected to the front wheel frame 3. One end of the rotating plate 11 is rotatably connected to the rear wheel frame 5 coaxially with the rotating shaft 12, and the other end is hinged to the linkage plate 6 via the connecting rod 10. One end of each of the two steering crank arms 8 is hinged to one of the two steering bodies 7, and the other end is hinged to the linkage plate 6 via the tie rod 9. The principle of the linkage assembly is as follows: when the rotating shaft 12 drives the rotating plate 11 to rotate, the rotating plate 11 drives the connecting rod 10 to stretch backward or forward. The connecting rod 10 drives the linkage plate 6 to rotate around the shaft connected to the front wheel frame 3. The rotation of the linkage plate 6 causes the two sets of steering crank arms 8 and tie rods 9 to swing, thereby driving the two front wheels 2 to steer. When the caregiver needs to turn while pushing the hospital bed, they can control the steering of the front wheel 2 by using the lever 13. Compared with the existing method of controlling the direction of the hospital bed by twisting the bed, the steering control is more convenient and precise, saving both effort and convenience.

[0021] like Figure 3 As shown, a hub motor 15 is installed on the axle of the rear wheel 4. The hub motor 15 is a commercially available product that can electrically drive the rear wheel 4. A button 16 for controlling the hub motor 15 is provided on the handle 14. By adding hub motors 15 to the two rear wheels 4 and placing the control button 16 on the handle 14, the hub motors 15 can assist in propulsion during pushing, saving thrust.

[0022] To prevent the bed from jamming during movement due to inconsistent steering of the two rear wheels 4, gears 17 are coaxially connected to the steering shaft 7 connecting the two rear wheels 4. The two gears 17 are connected by a chain 18. This ensures that when one rear wheel 4 turns, the other rear wheel 4 turns synchronously via the chain 18, effectively preventing the two rear wheels 4 from moving in different directions.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hospital bed that is easy to push, pull, and turn, characterized in that: The device includes a bed frame (1), a set of front wheels (2), a set of rear wheels (4), and a front wheel steering control mechanism. The bed frame (1) is provided with a front wheel frame (3) and a rear wheel frame (5) at its front and rear ends. The set of front wheels (2) are horizontally rotatably connected to the two ends of the front wheel frame (3) through a steering body (7). The set of rear wheels (4) are horizontally rotatably connected to the two ends of the rear wheel frame (5) through a steering body (7). The bed frame (1) is provided with a handle (14) on its tail plate. The front wheel steering control mechanism includes a linkage assembly, a rotating shaft (12), and a control lever (13). The control lever (13) is mounted on the rotating shaft (12). The rotating shaft (12) is vertically pivotally connected to the handle (14) through a bearing. The rotating shaft (12) is linked to the steering bodies (7) of the two front wheels (2) through the linkage assembly.

2. The hospital bed that is easy to push, pull, and turn according to claim 1, characterized in that: The linkage assembly includes a linkage plate (6), a connecting rod (10), a rotating plate (11), and two sets of steering crank arms (8) and a tie rod (9). The linkage plate (6) is quadrilateral, with one corner rotatably connected to the front wheel frame (3). One end of the rotating plate (11) is rotatably connected to the rear wheel frame (5) coaxially with the rotating shaft (12), and the other end is hinged to the linkage plate (6) through the connecting rod (10). One end of each of the two steering crank arms (8) is hinged to the two steering bodies (7), and the other end is hinged to the linkage plate (6) through the tie rod (9).

3. The hospital bed that is easy to push, pull, and turn according to claim 1, characterized in that: A hub motor (15) is provided on the axle of the rear wheel (4), and a button (16) for controlling the hub motor (15) is provided on the handle (14).

4. A hospital bed that is easy to push, pull, and turn according to claim 3, characterized in that: The two rear wheels (4) are connected to a steering body (7) with a gear (17) coaxially connected on the shaft. The two gears (17) are connected by a chain (18).

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