Automatic turning bed

Abstract

An automatic turning bed, comprising a turning cloth, a bed frame, a reduction gear, an electric control unit, a coupling, a left horizontal support seat, a threaded moving body, a screw rod, a guide rod, a right horizontal support seat, a front support seat, a stop rod, a driven gear, a driving gear, a slider, a turning arm, a longitudinal rod, a driven shaft, a middle support seat, a driving shaft and a rear support seat. The threaded hole of the threaded moving body and the screw rod form a screw pair, the through hole of the threaded moving body and the guide rod are in sliding fit, and the upper part of the threaded moving body is hinged to the slider. A slider in sliding fit with it is assembled on the turning arm at the head of the bed frame. The left side of the turning cloth is sewn on the longitudinal rod, and the right side of the turning cloth is sewn on the right longitudinal edge of the bed frame. The present invention can replace nursing staff and automatically turn over the bedridden patients at set time intervals.

Description

Technical Field

[0001] The present invention relates to an automatic turning bed. Background Art

[0002] Currently, the beds on the market do not have the function of turning people over. Therefore, for patients who do not have the ability to turn over independently, nursing staff need to turn them over regularly and patiently. Otherwise, pressure sores are likely to occur. This has caused a relatively large workload in large nursing facilities. Summary of the Invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an automatic turning bed, which can automatically turn over the patients in the bed at set time intervals.

[0004] The technical solution adopted by the present invention to solve its technical problems is as follows: The designed automatic turning bed includes a turning cloth, a bed frame, a speed reducer, an electric control unit, a coupling, a left horizontal support seat, a threaded moving body, a screw rod, a guide rod, a right horizontal support seat, a front support seat, a stop rod, a driven gear, a driving gear, a slider, a turning arm, a longitudinal rod, a driven shaft, a middle support seat, a driving shaft and a rear support seat. The speed reducer, the left horizontal support seat and the right horizontal support seat are fixedly installed at the head of the bed frame. The front support seat, the middle support seat and the rear support seat are fixedly installed at the side of the bed frame. The electric control unit controls the motor of the speed reducer. The speed reducer is connected to the screw rod through a coupling. The screw rod is rotatably supported on the left horizontal support seat and the right horizontal support seat. The guide rod is installed on the left horizontal support seat and the right horizontal support seat. The lower part of the threaded moving body is provided with a threaded hole adapted to the thread of the screw rod. The middle part of the threaded moving body is provided with a through hole. The threaded hole of the threaded moving body and the screw rod form a screw pair. The through hole of the threaded moving body and the guide rod are in sliding fit. The upper part of the threaded moving body is hinged to the slider. The driving shaft is rotatably supported on the front support seat and the rear support seat. Both ends of the driving shaft at the head and tail of the bed frame are connected with turning arms through keys. A slider in sliding fit with it is assembled on the turning arm at the head of the bed frame. The longitudinal rod is located on the left side of the bed frame and is connected to the turning arms at the head and tail of the bed frame. The left side of the turning cloth is sewn on the longitudinal rod. The right side of the turning cloth is sewn on the right longitudinal edge of the bed frame. The driven shaft is rotatably supported on the front support seat and the middle support seat. The driving gear is key-connected to the driving shaft. Both the driven gear and the stop rod are key-connected to the driven shaft. The driving gear meshes with the driven gear.

[0005] For the speed reducer in the present technical solution, its speed reduction mechanism can be a self-locking worm and worm gear reducer.

[0006] The working principle of the present invention is as follows: First, the time interval for turning over is set through the electronic control unit. When turning over, the reduction gearbox drives the screw rod to rotate, causing the threaded moving body to move to the right. The threaded moving body then causes the turning arm located at the head of the bed frame to rotate clockwise through the slider. The turning arm at the head of the bed frame causes the turning arms at the head and tail of the bed frame to rotate simultaneously in the same direction through the main shaft. Therefore, the longitudinal rod rotates clockwise around the axis of the main shaft. In this way, the turning cloth will turn over the bedridden patient. At the same time, the stop rod rotates counterclockwise around the axis of the driven shaft, and the end of the stop rod will block in front of the patient's chest to prevent excessive turning. It should be noted that the length and longitudinal position of the turning cloth can be customized according to the height classification of the patient.

[0007] The beneficial effect of the present invention is that it can replace the nursing staff and automatically turn over the bedridden patient at a set time interval. Description of the Drawings

[0008] Figure 1 is the front view of the present invention.

[0009] Figure 2 is Figure 1 the left view of

[0010] Figure 3 is Figure 1 the partial sectional view taken along A-A of

[0011] Figure 4 is Figure 2 the partial view in the direction of A of

[0012] In the figure, 1. turning cloth, 2. bed frame, 3. reduction gearbox, 4. electronic control unit, 5. coupling, 6. left horizontal support seat, 7. threaded moving body, 8. screw rod, 9. guide rod, 10. right horizontal support seat, 11. front support seat, 12. stop rod, 13. driven gear, 14. driving gear, 15. slider, 16. turning arm, 17. longitudinal rod, 18. driven shaft, 19. middle support seat, 20. main shaft, 21. rear support seat. Detailed Embodiment

[0013] From Figure 1 、 Figure 2 、 Figure 3 and Figure 4As can be seen, the automatic turning bed of the embodiment of the present invention includes a turning cloth 1, a bed frame 2, a speed reducer 3, an electric control unit 4, a coupling 5, a left horizontal support seat 6, a threaded moving body 7, a screw rod 8, a guide rod 9, a right horizontal support seat 10, a front support seat 11, a stop rod 12, a driven gear 13, a driving gear 14, a slider 15, a turning arm 16, a longitudinal rod 17, a driven shaft 18, a middle support seat 19, a driving shaft 20 and a rear support seat 21. The speed reducer 3, the left horizontal support seat 6 and the right horizontal support seat 10 are fixedly installed at the head of the bed frame 2; the front support seat 11, the middle support seat 19 and the rear support seat 21 are fixedly installed at the side of the bed frame 2. The speed reduction mechanism of the speed reducer 3 adopts a self-locking worm and worm gear reducer. The electric control unit 4 controls the motor of the speed reducer 3, and the speed reducer 3 is connected to the screw rod 8 through the coupling 5. The screw rod 8 is rotatably supported on the left horizontal support seat 6 and the right horizontal support seat 10, and the guide rod 9 is installed on the left horizontal support seat 6 and the right horizontal support seat 10. The lower part of the threaded moving body 7 is provided with a threaded hole adapted to the thread of the screw rod 8, and the middle part of the threaded moving body 7 is provided with a through hole. The threaded hole of the threaded moving body 7 and the screw rod 8 form a screw pair, the through hole of the threaded moving body 7 and the guide rod 9 are in sliding fit, and the upper part of the threaded moving body 7 is hinged to the slider 15. The driving shaft 20 is rotatably supported on the front support seat 11 and the rear support seat 21. The two ends of the driving shaft 20 at the head and tail of the bed frame 2 are both connected with turning arms 16 through keys. The turning arm 16 at the head of the bed frame 2 is equipped with a slider 15 in sliding fit therewith. The longitudinal rod 17 is located on the left side of the bed frame 2 and is connected to the turning arms 16 at the head and tail of the bed frame 2. The left side of the turning cloth 1 is sewn on the longitudinal rod 17, and the right side of the turning cloth 1 is sewn on the right longitudinal edge of the bed frame 2. The driven shaft 18 is rotatably supported on the front support seat 11 and the middle support seat 19, the driving gear 14 is key-connected to the driving shaft 20. The driven gear 13 and the stop rod 12 are both key-connected to the driven shaft 18, and the driving gear 14 meshes with the driven gear 13.

[0014] During turning, the speed reducer 3 drives the screw rod 8 to rotate, causing the threaded moving body 7 to move to the right. The threaded moving body 7 then causes the turning arm 16 at the head of the bed frame 2 to rotate clockwise through the slider 15. The turning arm 16 at the head of the bed frame 2 causes the turning arms 16 at the head and tail of the bed frame 2 to rotate simultaneously in the same direction through the driving shaft 20. Therefore, the longitudinal rod 17 rotates clockwise around the axis of the driving shaft 20. In this way, the turning cloth 1 will turn the patient lying in bed. At the same time, the stop rod 12 rotates counterclockwise around the axis of the driven shaft 18, and the end of the stop rod 12 will block in front of the patient's chest to prevent excessive turning.

Claims

1. An automatic turning bed, comprising a turning cloth, a bed frame, a speed reducer, an electric control unit, a coupling, a left horizontal support seat, a threaded moving body, a screw rod, a guide rod, a right horizontal support seat, a front support seat, a stop rod, a driven gear, a driving gear, a slider, a turning arm, a longitudinal rod, a driven shaft, a middle support seat, a driving shaft and a rear support seat, characterized in that: The speed reducer, the left horizontal support seat and the right horizontal support seat are fixedly installed at the head of the bed frame, the front support seat, the middle support seat and the rear support seat are fixedly installed at the side of the bed frame, the electric control unit controls the motor of the speed reducer, the speed reducer is connected to the screw rod through the coupling, the screw rod is rotationally supported on the left horizontal support seat and the right horizontal support seat, the guide rod is installed on the left horizontal support seat and the right horizontal support seat, the lower part of the threaded moving body is provided with a threaded hole adapted to the screw thread of the screw rod, the middle part of the threaded moving body is provided with a through hole, the threaded hole of the threaded moving body and the screw rod form a screw pair, the through hole of the threaded moving body and the guide rod are in sliding fit, the upper part of the threaded moving body is hinged to the slider, the driving shaft is rotationally supported on the front support seat and the rear support seat, both ends of the driving shaft at the head and tail of the bed frame are connected with turning arms through keys, a slider in sliding fit with it is assembled on the turning arm at the head of the bed frame, the longitudinal rod is located on the left side of the bed frame and is connected to the turning arms at the head and tail of the bed frame, the left side of the turning cloth is sewn on the longitudinal rod, the right side of the turning cloth is sewn on the right longitudinal edge of the bed frame, the driven shaft is rotationally supported on the front support seat and the middle support seat, the driving gear is key-connected to the driving shaft, both the driven gear and the stop rod are key-connected to the driven shaft, and the driving gear meshes with the driven gear; By setting the turning time interval through the electric control unit, during turning, the speed reducer drives the screw rod to rotate, so that the threaded moving body moves to the right, and the threaded moving body makes the turning arm at the head of the bed frame rotate clockwise through the slider; the turning arm at the head of the bed frame makes the turning arms at the head and tail of the bed frame rotate simultaneously in the same direction through the driving shaft, and the longitudinal rod rotates clockwise around the axis of the driving shaft, so that the turning cloth will turn the patient lying in bed. At the same time, the stop rod rotates counterclockwise around the axis of the driven shaft, and the end of the stop rod will block in front of the patient's chest to prevent excessive turning.

2. The automatic turning bed according to claim 1, characterized in that: The speed reducer has a self-locking worm and worm gear reducer as its reduction mechanism.

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