Electric booster for transfer bed

Abstract

The utility model relates to an electric booster for a transfer bed. The electric booster comprises an operating rod, an angle sensor, a connecting piece, a steering motor and a driving wheel, the angle sensor is arranged at the top of the connecting piece, the operating rod is rotationally connected to the rotating end of the angle sensor, the bottom of the connecting piece is connected with a steering motor, a rotating shaft of the steering motor faces downwards and is connected with a driving wheel, and a locking buckle connected with the transfer bed is arranged on the connecting piece; the angle sensor is electrically connected with the steering motor, and a driver switch of the driving wheel is arranged on the operating rod. A locking buckle is arranged in the middle of a bed head of the transfer bed, and a driver switch of a driving wheel on an operating rod is started, so that the electric booster of the transfer bed pushes the transfer bed to advance; when steering is needed, only the operating rod needs to be rotated, so that the rotating shaft of the angle sensor is driven to rotate, the angle sensor sends the rotating angle parameter to the driver of the steering motor, the steering motor is driven to steer, the driving wheels steer synchronously, and then the purpose of steering assistance of the driving wheels is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric booster equipment, in particular to an electric booster for a transfer bed. Background Art

[0002] In the field of medical care, transfer beds are an indispensable and important equipment in hospitals, used to transfer patients between different areas such as wards, operating rooms, and examination rooms. Traditional transfer beds usually do not have a power system and need to be pushed or pulled manually by medical staff. This is not only labor-intensive, but also prone to secondary injuries to patients due to improper operation during the transfer process. Especially in narrow corridors or places where turns are required, the operation difficulty of the transfer bed increases significantly, greatly affecting the transfer efficiency and patient safety.

[0003] In order to solve the above problems, Chinese utility model patent 202021117137.2 proposes a bed booster frame, which helps the transfer bed to move by adding a booster frame and a driving wheel, greatly reducing the labor intensity of medical staff and improving the transfer efficiency. However, this booster frame still has some shortcomings in practical applications.

[0004] Specifically, the utility model patent sets two driving wheels, and the two driving wheels are fixed and cannot turn. During the transportation process, if a turn is required, the driving wheel on the same side as the turn is controlled to stop rotating, and the driving wheel on the opposite side of the turn is kept rotating to realize the turning of the front side of the transfer bed. This steering method is not only complicated to operate, but also because the driving wheel on the same side of the turn is locked, the stability of the transfer bed is affected when turning, which can easily cause the transfer bed to overturn, posing a potential threat to the safety of patients. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide an electric booster for a transfer bed to overcome the deficiencies in the above-mentioned prior art.

[0006] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: an electric booster for a transfer bed, comprising an operating lever, an angle sensor, a connecting piece, a steering motor and a driving wheel; the angle sensor is arranged at the top of the connecting piece, the operating lever is rotatably connected to the rotating end of the angle sensor, the bottom of the connecting piece is connected to the steering motor, the rotating shaft of the steering motor faces downward and is connected to the driving wheel, and a locking buckle connected to the transfer bed is arranged on the connecting piece; the angle sensor is electrically connected to the steering motor, and the driver switch of the driving wheel is arranged on the operating lever.

[0007] The beneficial effects of the utility model are as follows: during transportation, the locking buckle is set in the middle of the head of the transfer bed, and the driver switch of the driving wheel on the operating lever is started, so that the electric booster of the transfer bed pushes the transfer bed forward; when turning is required, it is only necessary to rotate the operating lever to drive the rotating shaft of the angle sensor to rotate, and the angle sensor sends the rotation angle parameter to the driver of the steering motor, thereby driving the steering motor to turn, so that the driving wheel turns synchronously, thereby achieving the purpose of driving wheel steering assistance. The utility model only adopts one driving wheel with steering function, and the driving wheel is set in the middle of the head of the transfer bed. The driving wheel cooperates with the original universal wheel of the transfer bed to realize driving the transfer bed while the steering operation of the transfer bed is convenient, and when turning, there is no wheel locking, the turning stability is high, and it is not easy to overturn.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the operating lever includes a gear lever, a limit box and a connecting rod; a V-shaped groove is provided inside the limit box, the lower end of the gear lever is rotatably connected to the bottom of the limit box through a rotating shaft, the gear lever moves in the V-shaped groove, one end of the connecting rod is fixedly connected to the bottom of the V-shaped groove, and the other end of the connecting rod is rotatably connected to the rotating end of the angle sensor; the drive switch includes a driving wheel forward push switch and a driving wheel backward push switch, the driving wheel forward push switch is arranged on the side of the V-shaped groove away from the transfer bed, and the driving wheel backward push switch is arranged on the side of the V-shaped groove facing the transfer bed.

[0010] Furthermore, a torsion spring is connected between the rotating shaft of the gear lever and the limit box.

[0011] Furthermore, a straight-shaped grip is connected to the top of the gear lever.

[0012] Furthermore, the connecting piece is Z-shaped, and the locking buckle is arranged on the upper part of the connecting piece.

[0013] Furthermore, the steering motor is a servo motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the use state structure of the utility model Figure 1 ;

[0015] Figure 2 This is a schematic diagram of the use state structure of the utility model Figure 2 ;

[0016] Figure 3 It is a schematic diagram of the structure of the utility model;

[0017] Figure 4 It is an enlarged view of the local structure of the utility model.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0019] 1. Operating lever; 11. Shift lever; 12. Limit box; 121. V-shaped groove; 13. Connecting rod; 14. Driver switch; 141. Push switch for driving wheel forward; 142. Push switch for driving wheel backward; 15. Grip; 2. Angle sensor; 3. Connecting piece; 4. Steering motor; 5. Driving wheel; 6. Locking buckle. DETAILED DESCRIPTION

[0020] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0021] like Figure 1 to Figure 4 As shown, Example 1, an electric booster for a transfer bed, includes an operating lever 1, an angle sensor 2, a connecting piece 3, a steering motor 4 and a driving wheel 5; the angle sensor 2 is arranged on the top of the connecting piece 3, the operating lever 1 is rotatably connected to the rotating end of the angle sensor 2, the bottom of the connecting piece 3 is connected to the steering motor 4, the rotating shaft of the steering motor 4 faces downward and is connected to the driving wheel 5, and the connecting piece 3 is provided with a locking buckle 6 connected to the transfer bed; the angle sensor 2 is electrically connected to the steering motor 4, and the driver switch 14 of the driving wheel 5 is arranged on the operating lever 1.

[0022] During transportation, the locking buckle 6 is set in the middle of the head of the transfer bed, and the driver switch 14 of the driving wheel 5 on the operating lever 1 is started, so that the electric booster of the transfer bed pushes the transfer bed forward; when turning is required, it is only necessary to rotate the operating lever 1 to drive the rotating shaft of the angle sensor 2 to rotate, and the angle sensor 2 sends the rotation angle parameter to the driver of the steering motor 4, thereby driving the steering motor 4 to turn, so that the driving wheel 5 turns synchronously, thereby achieving the purpose of steering assistance of the driving wheel 5. The utility model only uses a driving wheel 5 with a steering function, and the driving wheel 5 is set in the middle of the head of the transfer bed. The driving wheel 5 cooperates with the original universal wheel of the transfer bed to realize driving the transfer bed while the steering operation of the transfer bed is convenient, and when turning, there is no wheel locking, the turning stability is high, and it is not easy to overturn.

[0023] In a specific implementation, a telescopic rod or a hydraulic telescopic rod is arranged between the connecting member 3 and the steering motor 4 so as to adjust the height according to the demand to adapt to the transfer beds of different heights.

[0024] Embodiment 2: This embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0025] The operating lever 1 includes a gear lever 11, a limit box 12 and a connecting rod 13; a V-shaped groove 121 is arranged inside the limit box 12, the lower end of the gear lever 11 is rotatably connected to the bottom of the limit box 12 through a rotating shaft, the gear lever 11 moves in the V-shaped groove 121, one end of the connecting rod 13 is fixedly connected to the bottom of the V-shaped groove 121, and the other end of the connecting rod 13 is rotatably connected to the rotating end of the angle sensor 2; the driver switch 14 includes a driving wheel forward pressing switch 141 and a driving wheel backward pressing switch 142, the driving wheel forward pressing switch 141 is arranged inside the V-shaped groove 121 on the side away from the transfer bed, and the driving wheel backward pressing switch 142 is arranged inside the V-shaped groove 121 on the side facing the transfer bed. When the transfer bed is pushed forward, the gear lever 11 is pushed, pressing the driving wheel forward pressing switch 141, and the driving wheel 5 drives the transfer bed forward; when the transfer bed is pulled backward, the gear lever 11 is pulled, pressing the driving wheel backward pressing switch 142, and the driving wheel 5 drives the transfer bed backward; the operating lever 1 can control the forward and backward movement of the transfer bed, and the operation is simple.

[0026] Embodiment 3, this embodiment is a further improvement on the basis of embodiment 2, and its details are as follows:

[0027] A torsion spring is connected between the rotating shaft of the gear lever 11 and the limit box 12. When the external force on the gear lever 11 is removed, the gear lever 11 can be quickly reset under the elastic action of the torsion spring, and the pressing of the driving wheel forward pressing switch 141 or the driving wheel backward pressing switch 142 is removed to avoid the gear lever 11 from being triggered by mistake.

[0028] Embodiment 4: This embodiment is a further improvement on the basis of embodiment 2, and its details are as follows:

[0029] The top of the gear lever 11 is connected with a straight-line grip 15 so that the medical staff can receive better force when pushing and pulling the gear lever 11.

[0030] Embodiment 5, this embodiment is a further improvement on the basis of embodiment 1, and its details are as follows:

[0031] The connecting member 3 is Z-shaped, and the locking buckle 6 is arranged on the upper part of the connecting member 3. The driving wheel 5 is located at the inner side of the bottom of the transfer bed to prevent the driving wheel 5 from hitting the feet of medical staff during the driving of the transfer bed.

[0032] Embodiment 6: This embodiment is a further improvement on the basis of any one of Embodiments 1 to 5, and its details are as follows:

[0033] The steering motor 4 is a servo motor, and the rotation angle is more precise.

[0034] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. An electric booster for a transfer bed, characterized in that: The invention comprises an operating rod (1), an angle sensor (2), a connecting member (3), a steering motor (4) and a driving wheel (5); the angle sensor (2) is arranged at the top of the connecting member (3); the operating rod (1) is rotatably connected to the rotating end of the angle sensor (2); the bottom of the connecting member (3) is connected to the steering motor (4); the rotating shaft of the steering motor (4) faces downward and is connected to the driving wheel (5); a locking buckle (6) connected to the transfer bed is arranged on the connecting member (3); the angle sensor (2) is electrically connected to the steering motor (4); and a driver switch (14) of the driving wheel (5) is arranged on the operating rod (1).

2. The electric booster for a transfer bed according to claim 1, characterized in that: The operating lever (1) comprises a gear lever (11), a limit box (12) and a connecting rod (13); a V-shaped groove (121) is arranged inside the limit box (12); the lower end of the gear lever (11) is rotatably connected to the bottom of the limit box (12) through a rotating shaft; the gear lever (11) moves in the V-shaped groove (121); one end of the connecting rod (13) is fixedly connected to the bottom of the V-shaped groove (121); the other end of the connecting rod (13) is rotatably connected to the rotating end of the angle sensor (2); the driver switch (14) comprises a driving wheel forward pressing switch (141) and a driving wheel backward pressing switch (142); the driving wheel forward pressing switch (141) is arranged inside the V-shaped groove (121) on a side away from the transfer bed; the driving wheel backward pressing switch (142) is arranged inside the V-shaped groove (121) on a side facing the transfer bed.

3. The electric booster for a transfer bed according to claim 2, characterized in that: A torsion spring is connected between the rotating shaft of the gear lever (11) and the limit box (12).

4. The electric booster for a transfer bed according to claim 2, characterized in that: The top of the gear lever (11) is connected to a straight-line grip rod (15).

5. The electric booster for a transfer bed according to claim 1, characterized in that: The connecting piece (3) is Z-shaped, and the locking buckle (6) is arranged on the upper part of the connecting piece (3).

6. The electric booster for a transfer bed according to any one of claims 1 to 5, characterized in that: The steering motor (4) is a servo motor.

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