CN109481196B - A medical patient transfer bed based on direct drive of servo motor - Google Patents

Abstract

A medical patient transfer bed based on direct drive of a servo motor comprises a bed body main body, a rotating mechanism, a belt displacement adjusting mechanism and a feeding pushing mechanism; the bed body main body comprises a bottom plate, a rear baffle and a side plate are arranged on the bottom plate, a bed plate is arranged on a guide rail of the side plate, and the bottom plate is connected to a medical bed bottom frame through a support arm; the rotating mechanism comprises a second servo motor arranged on the medical bed underframe, and the second servo motor drives the rotating shaft, the rotating arm and the bottom plate to move; the belt displacement adjusting mechanism comprises a third servo motor at the tail part of the bed plate, the third servo motor is connected with a second transmission shaft sleeved with rollers, a first servo motor is arranged below the bed plate and connected with a first transmission shaft sleeved with rollers, and the two rollers are connected through a conveying belt; the feeding pushing mechanism comprises a fourth servo motor at the rear end of the bed plate, and the fourth servo motor is connected with a nut fixedly connected inside the bed plate through a screw rod; the invention completes the transportation of the patient in a mechanical mode, ensures the safety and saves the cost.

Description

A medical patient transfer bed based on direct drive of servo motor

technical field

The invention belongs to the technical field of medical devices, and in particular relates to a medical patient transfer bed based on a direct drive of a servo motor.

Background technique

All major operations are done in the operating room, while preoperative and postoperative patient care, treatment and rehabilitation training are mostly concentrated in the ward, which leads to an indispensable link for patients to convert hospital beds in the process . At the same time, there are more and more large-scale clinical examinations. During the examination, the patient often needs to be transferred to the examination bed. For the patient who cannot walk, the patient also needs to be transported constantly. The traditional way of converting a hospital bed is to lift the patient to a trolley by 3 to 4 auxiliary personnel, transport the patient to the operating room or examination room, and then lift the patient to the operating bed or examination bed until the operation or examination is completed. transport the patient back to the ward.

The traditional method of changing beds is laborious and troublesome, and takes up a lot of medical staff. At the same time, some patients are prone to secondary injuries during the transportation process by auxiliary personnel, such as the drainage tube being pulled out and the wound being ruptured.

SUMMARY OF THE INVENTION

In order to overcome the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a medical patient transfer bed based on direct drive of a servo motor, which can complete the handling of patients by mechanical means, ensure patient safety, and save labor costs.

In order to achieve the above object, the technical scheme adopted in the present invention is:

A medical patient transfer bed based on direct drive of a servo motor, comprising a bed body, a rotating mechanism, a belt displacement adjustment mechanism and a feeding and pushing mechanism;

The main body of the bed includes a bottom plate 5, a rear baffle 23 and a side plate 2 are installed on the upper part of the bottom plate 5, a guide rail is installed on the inner side of the side plate 2, a bed plate 16 is installed on the guide rail, and the bottom plate 5 is connected with the upper end rotating block of the support arm 7, The lower end of the support arm 7 is connected to the medical bed base frame 9 , and retractable rollers 8 are installed on the four upright columns of the medical bed base frame 9 .

The rotating mechanism includes a second servo motor 14 installed on the bottom frame of the medical bed 9, the output shaft of the second servo motor 14 is connected with the first rotating shaft 12 through the first transmission belt 13, and the first rotating shaft 12 passes through the second rotating shaft 12. The transmission belt 19 is connected with the second rotating shaft 20, the first rotating shaft 12 is connected with the first rotating arm 18, the second rotating shaft 20 is connected with the second rotating arm 21, and the first rotating arm 18 and the second rotating arm 21 are connected with the bottom plate 5 lower connection.

The belt displacement adjustment mechanism includes a third servo motor 24 installed on one side of the tail of the bed plate 16, the output shaft of the third servo motor 24 is connected with the second transmission shaft 30, and the second transmission shaft 30 is concentrically sleeved with a second roller. 32;

A first servo motor 3 is installed on one side of the middle part below the bed plate 16, the output shaft of the first servo motor 3 is connected with the first transmission shaft 15, and the first transmission shaft 15 is concentrically sleeved with a first roller 33;

The second roller 32 is connected to one end of the conveying belt 17 , and the first roller 33 is connected to the other end of the conveying belt 17 .

The feeding and pushing mechanism includes more than two groups of fourth servo motors 25 placed on the hollowed out rear end of the bed plate 16 , the fourth servo motors 25 are fixed on the bottom plate 5 , and each fourth servo motor 25 outputs a shaft. It is connected with one end of the lead screw 27, the lead screw 27 is sleeved in the bearing seat 28, and the other end of the lead screw 27 is threadedly connected with the nut 29, and the nut 29 is fixedly connected inside the bed board 16.

The bed board 16 is designed as an inclined surface with an inclined angle, and the guide rail connecting the side surface of the bed board 16 with the side board 2 is designed as an inclined angle guide rail.

The medical bed chassis 9 is provided with a control module, and the first servo motor 3 , the second servo motor 14 , the third servo motor 24 and the fourth servo motor 25 are controlled by the control module.

The beneficial effects of the present invention are:

(1) The present invention effectively saves the manpower of the medical staff during the transfer process of the patient, and one person can operate the controller through the controller, thereby reducing the nursing cost.

(2) The direct drive mode of the servo motor is adopted, which is convenient to control, the bed board feeds smoothly, and the positioning is accurate.

(3) The bed board is designed with a certain inclination angle. The rotating arm under the bed board is controlled by a servo motor, and the whole bed is rotated to a reasonable position before the bed board is fed, which is convenient for the bed board to extend under the patient's body during feeding.

(4) The guide rails on the side of the bed board are designed to be inclined at a certain angle. When the bed board is recovered along the guide rails on the inner side of the side board, the inclined bed board can be returned to the horizontal position relative to the bottom plate. The conveyor belt on the bed board transports the patient to the hospital bed by sliding friction. The middle part ensures the stability and safety of the patient during the transfer process.

Description of drawings

FIG. 1 is a front view of the present invention.

Figure 2 is a top view of the present invention.

Figure 3 is a side view of the present invention.

Figure 4 is an isometric side view of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to Figure 1, Figure 2, Figure 3, Figure 4, a medical patient transfer bed based on the direct drive of a servo motor, comprising a bed body, a rotating mechanism, a belt displacement adjustment mechanism and a feeding push mechanism;

The main body of the bed includes a bottom plate 5, a rear baffle 23 and a side plate 2 are installed on the upper part of the bottom plate 5, a baffle plate 1 is installed on the side plate 2, a guide rail is installed on the inner side of the side plate 2, a bed plate 16 is installed on the guide rail, and the bottom plate 5 is installed. It is connected with the rotating block at the upper end of the support arm 7, and the lower end of the support arm 7 is connected with the medical bed base frame 9, and the four upright columns of the medical bed base frame 9 are provided with retractable rollers 8.

The rotating mechanism includes a third connecting plate 10 installed on the bottom frame of the medical bed 9, a second connecting plate 11 installed on the third connecting plate 10, a second servo motor 14 installed on the second connecting plate 11, and a second connecting plate 14 installed on the third connecting plate 10. The output shafts of the two servo motors 14 are connected to the first rotating shaft 12 through the first transmission belt 13 , the first rotating shaft 12 is connected to the second rotating shaft 20 through the second transmission belt 19 , and the first rotating shaft 12 is connected to the first rotating arm 18 The second rotating shaft 20 is connected to the second rotating arm 21 , the first rotating arm 18 and the second rotating arm 21 are both connected to the first connecting plate 6 , and the first connecting plate 6 is connected to the lower part of the bottom plate 5 .

The belt displacement adjustment mechanism includes a third servo motor 24 installed on the rear side of the bed plate 16, and the output shaft of the third servo motor 24 is connected to the second transmission shaft 30 through the second reducer 31. The concentric sleeve is provided with a second roller 32;

A first servo motor 3 is installed on one side of the middle part below the bed plate 16, the output shaft of the first servo motor 3 is connected with the first transmission shaft 15 through the first reducer 4, and the first transmission shaft 15 is concentrically sleeved with a first roller barrel 33;

The second roller 32 is connected to one end of the conveying belt 17 , and the first roller 33 is connected to the other end of the conveying belt 17 .

The feeding and pushing mechanism includes seven groups of fourth servo motors 25 placed at the hollowed out rear end of the bed plate 16 , the fourth servo motors 25 are fixed on the motor connecting seat 22 , and the motor connecting seat 22 is fixed on the bottom plate 5 . , the output shaft of each fourth servo motor 25 is connected with one end of the lead screw 27 through the coupling 26, the lead screw 27 is sleeved in the bearing seat 28, the other end of the lead screw 27 is threadedly connected with the nut 29, and the nut 29 is fixed on the bed board 16 inside.

The bed board 16 is designed as an inclined surface with a certain inclination angle, and the guide rail connecting the side surface of the bed board 16 with the side board 2 is designed as a guide rail with a certain inclination angle.

The third connecting board 10 is provided with a control module, and the first servo motor 3, the second servo motor 14, the third servo motor 24, and the fourth servo motor 25 are controlled by the control module.

The working principle of the present invention is:

When the patient needs to be transferred from the ward to the operating room or examination room, the transfer bed is parked beside the patient's bed. First, the bed rotating mechanism works, the second servo motor 14 drives the first rotating shaft 12 through the first transmission belt 13, and the second A rotating shaft 12 drives the second rotating shaft 20 through the second transmission belt 19. The first rotating shaft 12 and the second rotating shaft 20 simultaneously drive the first rotating arm 18 and the second rotating arm 21 to rotate in the direction in which the bed board 16 needs to be fed. , Driven by the first rotating arm 18 and the second rotating arm 21, the first connecting plate 6 and the bottom plate 5 are inclined in the same direction, and the rotating block at the upper end of the support arm 7 is inclined with the bottom plate 5. Under the inclination of the bottom plate 5, the bed plate 16 is tilted downward, and when the angle is adjusted properly, the second servo motor 14 stops rotating, and the tilting process ends;

At this time, the feeding and pushing mechanism works, and the seven fourth servo motors 25 side by side drive the lead screw 27 to rotate through the coupling 26. The lead screw 27 converts the rotary motion into linear motion and pushes the nut 29 to feed in a linear direction, and the nut 29 pushes The bed board 16 is fed along the guide rail inside the side board 2 in a linear direction, the bed board 16 is inserted under the patient's body, and the fourth servo motor 25 is stopped;

Then the belt displacement adjustment mechanism works, the first servo motor 3 and the third servo motor 24 rotate, driving the conveyor belt 17 to rotate backward, and the patient is transported to the middle of the bed board 16 by sliding friction. At this time, the first servo motor 3 and the third servo motor The three servo motors 24 are stopped, the fourth servo motor 25 is reversed, the bed board 16 is withdrawn in the opposite direction, and the patient is sent to the middle of the transfer bed, and the medical staff pushes the transfer bed to the operating room or observation room.

If the patient needs to return to a normal hospital bed, a similar operation can be performed to safely return the patient to the ward.

Claims (2)

1. a medical patient transfer bed based on the direct drive of a servo motor, is characterized in that, comprises the bed main body and the rotating mechanism, the belt displacement adjustment mechanism and the feeding push mechanism; The main body of the bed includes a bottom plate (5), a rear baffle (23) and a side plate (2) are installed on the upper part of the bottom plate (5), a guide rail is installed on the inner side of the side plate (2), and a bed plate (16) is installed on the guide rail. , the bottom plate (5) is connected with the rotating block at the upper end of the support arm (7), the lower end of the support arm (7) is connected with the medical bed base frame (9), and the four uprights of the medical bed base frame (9) are equipped with retractable rollers (8); The rotating mechanism includes a second servo motor (14) mounted on the bottom frame (9) of the medical bed, and the output shaft of the second servo motor (14) is connected to the first rotating shaft (12) through the first transmission belt (13) The first rotating shaft (12) is connected with the second rotating shaft (20) through the second transmission belt (19), the first rotating shaft (12) is connected with the first rotating arm (18), and the second rotating shaft (20) ) is connected with the second rotating arm (21), and the first rotating arm (18) is connected with the lower part of the bottom plate (5) with the second rotating arm (21); The belt displacement adjustment mechanism comprises a third servo motor (24) mounted on one side of the tail of the bed plate (16), the output shaft of the third servo motor (24) is connected with the second transmission shaft (30), and the second transmission shaft ( 30) The upper concentric sleeve is provided with a second roller (32); A first servo motor (3) is installed on one side of the middle part below the bed board (16), the output shaft of the first servo motor (3) is connected with the first transmission shaft (15), and the first transmission shaft (15) is concentrically sleeved There is a first roller (33); The second roller (32) is connected with one end of the conveying belt (17), and the first roller (33) is connected with the other end of the conveying belt (17); The feeding and pushing mechanism includes more than two groups of fourth servo motors (25) placed at the hollowed out rear end of the bed plate (16), the fourth servo motors (25) are fixedly connected to the bottom plate (5), and each The output shaft of the fourth servo motor (25) is connected with one end of the lead screw (27), the lead screw (27) is sleeved in the bearing seat (28), and the other end of the lead screw (27) is threadedly connected with the nut (29), and the nut (29) fixedly connected inside the bed board (16); The bed board (16) is designed as an inclined surface with an inclined angle, and the guide rail connecting the side surface of the bed board (16) with the side board (2) is designed as a guide rail with an inclined angle. 2. A kind of medical patient transfer bed based on direct drive of servo motor according to claim 1, it is characterized in that: described medical bed base frame (9) is equipped with control module, the first servo motor (3), the first servo motor (3), the third The second servo motor (14), the third servo motor (24), and the fourth servo motor (25) are controlled by the control module.

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