CN111467161A - Device for assisting old people to get on or off bed - Google Patents

Abstract

The invention discloses a device for assisting the elderly to get in and out of bed. The device mainly includes a lifting mechanism, a link mechanism, a main body shell and a back rotation mechanism. The lifting mechanism is driven by a motor, and drives the main casing to rise and fall through the screw pair. The pitching mechanism includes a leg support plate, a back curved plate and a connecting rod. The electric push rod of the pitching mechanism drives the connecting rod. The linkage between the leg support plate and the back slide plate is realized through the plane link mechanism to complete the pitching action. The back rotating mechanism mainly includes a rotating back plate, a back curved plate, and a spring self-locking mechanism. In this mechanism, the rotating back plate and the back curved plate can rotate relative to each other, and are limited and self-locked by the spring self-locking mechanism to achieve two working states. The above devices can help the elderly, the wounded and the sick get out of bed and assist them to sit up from the bed to watch TV, read books, read newspapers, etc., so as to improve their quality of life.

Description

A device for assisting the elderly to get in and out of bed

technical field

The invention relates to the field of life and health, in particular to a device for assisting the elderly to get out of bed.

Background technique

Population aging is a serious social problem that plagues many developed and developing countries. The age structure of my country's population has entered the elderly type, and the absolute number of elderly people is the highest in the world. The problem of healthy old-age care for the aging population has also become a social problem that our country must face and solve. With the increase of age, the normal physiological functions of the elderly gradually decline, and the degenerative changes in the elderly lead to various body dysfunctions, which seriously affect the activities of daily living of the elderly. Some assistance is needed; at present, most elderly people are alone at home and it is difficult to get timely help, and there is no relatively mature technology to assist the elderly in getting out of bed in China.

SUMMARY OF THE INVENTION

The main purpose of the present invention is to provide a device for assisting the elderly to get in and out of bed, which can complete the actions of assisting the elderly to get in and out of bed and sit up from the bed through simple operations, so as to solve the problem of inconvenience for the elderly living alone at home.

To achieve the above object, the present invention adopts the following technical solutions:

A device for assisting the elderly to get in and out of bed, comprising a lifting mechanism, a main body shell, a link mechanism, and a back rotation mechanism; the lifting mechanism includes a base, a motor frame, a motor, a cylinder, a screw gear pair, the motor frame and the base Bolted connection, the motor is installed on the motor frame, the gear pair is installed in the cavity of the motor frame, the screw rod passes through the hole above the motor frame, the lower end of which is engaged with the inner ring threaded sleeve of the gear, and the upper end is connected with the main body shell threaded connection, the barrel is installed outside the screw rod; the main shell includes two identical side plates, a bottom plate, and a backing plate, and the side plates, the bottom plate and the backing plate are welded to form the main body shell; the barrel The body is installed on the bottom plate through the flange; the link mechanism includes a leg support plate, a connecting rod, an electric push rod, and a back curved plate, and the leg support plate, the connecting rod, and the electric push rod are all installed on the main body through shafts In the casing, the back curved plate is installed in the main body casing through the arc-shaped chute on the side plate; the back rotating mechanism includes a back curved plate, a rotating back plate, a thrust bearing, and a spring self-locking mechanism.

With the above structure, the initial position of the lifting mechanism is at the lowest position, and the rotating back plate and the leg support plate are reset to the chair state. When the old man needs to go to bed, the lifting switch is pressed on the backing plate, and the motor rotates forwardly. At this time, the lifting mechanism drives the seat After the chair rises to the required height, it stops rising, then press the pitch switch, the electric push rod rotates forward, and the connecting rod drives the leg support plate and the rotating back plate to flatten to realize the flat-lying action, then turn over to the bed, and get out of bed for this process. Reverse process; when the old man needs to sit up from the bed, pull up the limit pin and then drive the rotating back plate to rotate 90° so that the rotating back plate rests on the bed horizontally, turn over and lie down on the rotating back plate, and then press the pitch switch and the electric push rod reverses. Rotate, the connecting rod drives the rotating back plate to stand up to complete the sit-up action.

The lifting mechanism is located at the bottom of the whole set of devices, including a base, a motor frame, a motor, a cylinder body, and a screw gear pair; the motor frame is bolted to the base, and there are two through holes on the upper end of the motor frame for installing screws There is a cavity in the middle of the rod and the motor; the lower end of the screw rod is inserted into the cavity through the upper hole of the motor frame and is threadedly connected with the screw rod gear, and the upper end of the screw rod is threadedly connected with the bottom plate; the output shaft of the motor passes through the motor frame. The through hole is inserted into the cavity to cooperate with the motor gear and is positioned circumferentially through the key; two pairs of thrust bearings are on both ends of the two gears; the cylinder is installed outside the screw, and its upper end is connected with the main body shell bottom plate through a flange, There is a gap on the right side of the cylinder body to be fixed on the motor through the chute.

The main body shell consists of two identical side plates, a bottom plate and a backing plate, and the side plates, the bottom plate and the back plate are welded to form the main body shell; the side plate has three shaft holes for installing the shaft, the upper left There is a section of arc-shaped chute for installing the back curved plate; the backing plate is welded above the side plate.

The connecting rod mechanism includes a leg support plate, connecting rod one, connecting rod two, connecting rod three, an electric push rod, and a back curved plate, and the leg support plate, connecting rod and electric push rod are all installed on the main body through shafts. There is an ear plate on both sides of the leg support plate, and is installed in the main body shell through the third axis, and the ear plate is hinged with the connecting rod three; the electric push rod is installed in the main body shell through the first axis ; The back curved plate is installed in the arc-shaped chute through the rollers and is concentric with the circular arc-shaped chute; the connecting rod two is installed in the main body shell through the shaft four; The other end is hinged with the second connecting rod; the third left end of the connecting rod and the middle point of the second connecting rod are hinged at one point and connected together through the second shaft, the output shaft of the electric push rod is hinged with the middle point of the second shaft, and the three pairs of connecting rods are installed on the second shaft. Close to both sides of the side plate, the electric push rod is installed in the middle position away from the side plate, and the electric push rod drives the linkage mechanism to realize the linkage between the leg support plate and the back curved plate, and then complete the pitching action.

The back rotating mechanism includes a back curved plate, a rotating back plate, a thrust bearing, and a spring self-locking mechanism; the back curved plate and the rotating back plate have a through hole, and there is an annular recess of the same size around the through hole, and the rotating shaft passes through the through hole. The hole connects the two plates together, the annular recess forms a cavity in the middle of the two plates, and the thrust bearing is installed in the cavity; there is a through hole on the left side of the annular recess on the rotating back plate, and the locking pin and the spring are installed Among the through holes, there are two limit holes on the back curved plate. In the normal position, the locking pin is inserted into one of the limit holes through the through hole on the rotating back plate to limit its rotation. Pull out the locking pin and rotate 90 degrees. °Afterwards, the locking pin is reset and inserted into another limit hole under the action of the spring force to realize the transition of different working states.

The beneficial effects achieved by adopting the above technical solutions are:

1. The connecting rod mechanism of the device in the present invention connects the back curved plate and the leg supporting plate, and realizes the linkage between the back curved plate and the leg supporting plate through the electric push rod driving the connecting rod, thereby realizing the lifting and lowering of the legs and the upper body. .

2. The rotating back plate of the device in the present invention can conveniently realize rotation and self-locking through the back rotating mechanism; multi-functionality can be realized by this mechanism.

Description of drawings

Below in conjunction with accompanying drawing, the present invention is further described:

Fig. 1 is the full sectional view of the present invention;

Fig. 2 is the axonometric view of the present invention;

In the figure: 1. Base; 2. Motor gear; 3. Motor frame; 4. Thrust bearing; 5. Motor; 6. Flange; 7. Bottom plate; 8. Side plate; 9. Axis 1; 10. Push rod; 11. Back curved plate; 12. Limiting hole; 13. Locking pin; 14. Rotating back plate; 15. Shaft; 16. Thrust bearing; 17. Arc-shaped chute; 20. Axis 2; 21. Rod 3; 22. Backing plate; 23. Leg support plate; 24. Axis 3; 25. Axis 4;

Detailed ways

The present invention will be further described below by embodiments in conjunction with the accompanying drawings:

Embodiment 1: A device for assisting the elderly to get in and out of bed, including a lifting mechanism, a main body shell, a link mechanism, and a back rotation mechanism; the lifting mechanism includes a base (1), a motor frame (3), a motor (5), a cylinder Body (27), screw gear pair, the motor frame (3) and the base (1) are connected by bolts, the motor (5) can be reversible, the motor (5) is installed on the motor frame (3), The gear pair is installed in the cavity of the motor frame (3), the screw rod (26) passes through the upper hole of the motor frame (3), the lower end is connected with the screw gear (28) through threads, and the upper end is connected with the main body shell bottom plate (7). ) screw connection, the cylinder body (27) is installed outside the screw rod (26); the main body shell includes two identical side plates (8), a bottom plate (7), and a backing plate (22), the side The plate (8), the bottom plate (7) and the backing plate (22) are welded to form the main body shell. The side plate (8) has three holes for installing the shaft and one end of the arc-shaped chute (17). (7) There is a threaded hole in the center for installing the screw rod (26), and four threaded holes are evenly distributed in the circumferential direction for connecting the cylinder (27), and the cylinder (27) is installed on the bottom plate (27) through the flange (6). 7) Up; the link mechanism includes the leg support plate (23), the first link (18), the second link (19), the third link (21), the electric push rod (10), the back curved plate ( 11), the leg support plate (23), the first connecting rod (18), the second connecting rod (19), the third connecting rod (21), and the electric push rod (10) are all installed in the main body shell through the shaft, so The back curved plate (11) is installed in the main body casing through the arc-shaped chute (17) on the side plate (8); the back rotating mechanism comprises a back curved plate (11), a rotating back plate (14), a thrust force Bearing (16), spring self-locking mechanism, the back curved plate (11) is installed in the main body shell through a roller, and the roller is on the right end of the back curved plate (11) and the arc-shaped chute (17) on the side plate (8) ), two rollers on both sides, the rotating back plate (14) and the back curved plate (11) are connected together by the rotating shaft (15), and the spring self-locking mechanism is installed between the two plates.

With the above structure, when the old man needs to go to bed, he sits on the device and presses the lift switch, the motor (5) drives the screw rod (26) to rotate through the gear pair, and the screw rod (26) together with the main body shell rises to the same height as the bed; Press the pitch open, the electric push rod (10) pushes the link mechanism, so that the leg support plate (23) is lifted, and the back plate curved plate (11) is lowered to complete the body lying down; The device is installed close to the bed, and the elderly can turn over from the device to the bed to complete the action of going to bed, and getting out of bed is the reverse process of this process.

Embodiment 2: A device for assisting the elderly to get in and out of bed. The structure is as described in Embodiment 1. After the bed-on process is completed, the device is in a flat state. the locking pin (13) of the The plate (14) is in a locked state and stretches out onto the bed, and then flips over to the backing plate to activate the pitch switch, the electric push rod (10) pushes the link mechanism, and the back curved plate (11) lifts to complete the sit-up action. As an additional function, the rotated backboard can provide the elderly with a leaning position to realize the functions of reading books, newspapers and watching TV on the bed.

Claims (5)

1. The utility model provides an supplementary old person gets on or off bed device which characterized in that: comprises a lifting mechanism, a connecting rod mechanism, a main body shell and a back rotating mechanism; the lifting mechanism comprises a base (1), a motor frame (3), a motor (5), a cylinder (27) and a screw rod gear pair, wherein the motor (5) is installed on the motor frame (3), the gear pair is installed in a cavity of the motor frame (3), a screw rod (26) penetrates through a hole above the motor frame (3), the lower end of the screw rod (26) is connected with a screw rod gear (28), the upper end of the screw rod (26) is fixedly connected with a bottom plate (7) of a main body shell, and the cylinder (27) is installed outside the screw rod (26); the main body shell comprises two identical side plates (8), a bottom plate (7) and a base plate (22), and the cylinder body (27) is arranged below the bottom plate (7); the connecting rod mechanism comprises a leg supporting plate (23), a first connecting rod (18), a second connecting rod (19), a third connecting rod (21), an electric push rod (10) and a back curved plate (11), the leg supporting plate (23), the first connecting rod (18), the second connecting rod (19), the third connecting rod (21) and the electric push rod (10) are all installed in the main body shell, and the back curved plate (11) is installed in the main body shell through an arc-shaped sliding groove (17) in the side plate (8); the back rotating mechanism comprises a back curved plate (11), a rotating back plate (14), a thrust bearing (16) and a spring self-locking mechanism.

2. The device for assisting the elderly to get on or off the bed as claimed in claim 1, wherein: in the lifting mechanism, a certain cavity is arranged below the base, threaded sleeves are arranged at the centers of a motor gear (2) and a screw rod gear (28) in the screw rod gear pair, and the motor (5) can rotate forward and backward.

3. The device for assisting the elderly to get on or off the bed as claimed in claim 1, wherein: in the connecting rod mechanism, the number of the first connecting rod (18), the second connecting rod (19) and the third connecting rod (21) is two, and one end of the back bent plate (11) connected with the first connecting rod (18) is provided with a section of vacancy.

4. The device for assisting the elderly to get on or off the bed as claimed in claim 1, wherein: in the main body shell, a circular arc-shaped sliding groove (17) and a back curved plate (11) are concentric and have the same curvature.

5. The device for assisting the elderly to get on or off the bed as claimed in claim 1, wherein: in the back rotating mechanism, a through hole is formed in a back curved plate (11) and a rotating back plate (14), and the center of two limiting holes (12) in the back curved plate (11) is connected with the center of the through hole of the back curved plate (11) to form a 90-degree included angle.

Images