CN2840974Y

CN2840974Y - Electric back-rotating device for bed

Info

Publication number: CN2840974Y
Application number: CN 200520077054
Authority: CN
Inventors: 张新生
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-10-30
Filing date: 2005-10-30
Publication date: 2006-11-29
Anticipated expiration: 2015-10-30

Abstract

The utility model relates to an electric back-rotating device for a bed, which comprises a bed frame, a back frame, and an electric propelling member, wherein the right end of the back frame is rotationally fixed to the bed frame; the electric propelling member is arranged between the bed frame and the back frame. Because a feed screw nut mechanism with a self-lock function is arranged on the bed frame, a motor carries out driving steering by a group of bevel gears, the motor drives a screw rod to move up and down by the bevel gears and bevel gear screws, the rising or the falling of the screw rod drives the back frame to rotate, the rotation momentum of the back frame can ensure that people convert from the state of lying to the state of sitting, the people can regulate the rotation angle of the back frame by controlling the control switch of the motor. The electric back-rotating device for a bed is not only suitable for various nursing hospital beds in hospitals, nursing homes, clinics, but also suitable for sleeping berth beds used in ships, trains, and coach buses, and is suitable for household beds as well.

Description

The electric back rotation device of bed accessory

Technical field:

This utility model relates to a kind of bed accessory.

Background technology:

At present, used sick bed function singleness in the hospital, can only the patients laid up, though comparatively high-grade sick bed also has the elevating mechanism of backrest, but handwheel is arranged on the foot of sick bed, patient is sat up, and the foot that the nursing staff must go to sick bed rotates handwheel, in the process that patient sits up, the nursing staff bumps less than patient, patient does not have the security, simultaneously, and existing elevating mechanism complex structure, the screw mandrel length dimension is too big, the cost height all can not use this structure on sleeping berth bed used on steamer, train, the long-distance bus, use is very limited.

Summary of the invention:

Goal of the invention of the present utility model is: the electronic tumbler that a kind of bed accessory backrest is provided.

The electronic tumbler of bed accessory backrest described in the utility model, it comprises a frame, seat back frame, electronic push mechanism, the right-hand member of described seat back frame is rotatably mounted on the frame by shipping and reselling on another market, electronic push mechanism is arranged between a frame and the seat back frame, and the rotation angle of inclination of seat back frame is controlled by electronic push mechanism.

As a kind of embodiment of the present utility model, described electronic push mechanism, comprise motor, drive, power transmission shaft, movable screw female seat, bevel gear nut, bevel gear, screw mandrel, drive and bevel gear are installed on the power transmission shaft, and power transmission shaft is rotatably mounted on the frame; Motor links to each other with power transmission shaft by drive, the bevel gear nut is installed in rotation on the movable screw female seat, and the movable screw female seat is fixed on the frame turningly, and screw mandrel is paid by screw thread with the bevel gear nut and linked to each other, the upper end and the seat back frame of screw mandrel are hinged, bevel gear nut and bevel gear engagement.

As another kind of embodiment of the present utility model, described electronic push mechanism, comprise motor, movable screw female seat, bevel gear nut, bevel gear, screw mandrel, bevel gear is directly installed on the main shaft of motor, and motor is fixed on the frame, and the bevel gear nut is installed in rotation on the movable screw female seat, the movable screw female seat is fixed on the frame turningly, screw mandrel is paid by screw thread with the bevel gear nut and is linked to each other, and the upper end and the seat back frame of screw mandrel are hinged, bevel gear nut and bevel gear engagement.

Described movable screw female seat is made up of bearing, bearing block, screw, ring for fixing and support plate, the bevel gear nut is installed in the bearing, bearing is installed in the bearing block, and bearing block is installed on the ring for fixing by two screws turningly, and ring for fixing is fixed on the support plate that is connected with the bed frame.

Owing on the bed frame, be provided with the leading screw and nut mechanism of energy self-locking, and motor carries out transmission turning by one group of bevel gear, motor can pass through bevel gear, the bevel gear nut drives screw mandrel and moves up and down, the rising of screw mandrel or the meeting that descends drive seat back frame and rotate, the rotational angle size of seat back frame can make the people convert the sitting shape to from the shape that crouches, people are as long as just can regulate the rotational angle of seat back frame by handling motor control switch, to satisfy people's different demands, this back rotation device both had been applicable to hospital, nursing house, in the clinic each is nursing hospital bed, also be applicable to steamer, train, used sleeping berth bed on the coach is equally to also very suitable in the domestic bed accessory.

Description of drawings:

Fig. 1 is the fundamental diagram of example 1; Fig. 2 is the structural representation of movable screw female seat in the example 1;

Fig. 3 is the fundamental diagram of example 2;

Among the figure: 1-bed frame; The 2-seat back frame; The 4-screw mandrel; The 5-bevel gear; 6-bevel gear nut; 7-movable screw female seat; The 71-bearing; The 72-bearing block; The 73-screw; The 74-ring for fixing; The 75-support plate; The 8-power transmission shaft; The 9-drive; The 10-motor; 11-ships and resell on another market; The 12-roller; 13-push-pull bar conjunction;

The specific embodiment:

Illustrate the specific embodiment of the present utility model below in conjunction with accompanying drawing:

Example 1: the electronic tumbler of bed accessory backrest described in the utility model, comprise a frame 1, seat back frame 2 and electronic push mechanism, the right-hand member of seat back frame 2 11 is rotatably mounted on the frame 1 by shipping and reselling on another market, described electronic push mechanism is made up of motor 10, drive 9, power transmission shaft 8, movable screw female seat 7, bevel gear nut 6, bevel gear 5 and screw mandrel 4, drive 9 and bevel gear 5 are installed on the power transmission shaft 8, and power transmission shaft 8 is rotatably mounted on the frame 1; Center at bevel gear nut 6 is shaped on female thread, its lower end is provided with the shaft shoulder, the shaft shoulder is installed on the bearing block 72 by bearing 71, bevel gear nut 6 is rotatable with respect to bearing block 72, bearing block 72 is fixed on the support plate 75 by two screws 73 and ring for fixing 74 turningly, support plate 75 is fixed on the bed core frame 1, screw mandrel 4 and bevel gear nut 6 are paid by screw thread and are linked to each other, the push-pull bar conjunction 13 at the upper end of screw mandrel 4 and seat back frame 2 back sides is hinged, bevel gear nut 6 and bevel gear 5 engagements, motor 10 drives drive 9 and rotates, bevel gear 5, bevel gear nut 6 will rotate thereupon, because bevel gear nut 6 is defined at the degree of freedom of screw mandrel direction, bevel gear nut 6 rotates, 4 of screw mandrels rise or descend along its axis, rotate thereby drive seat back frame 2, when screw mandrel 4 rises, the ship and resell on another market 11 upwards commentaries on classics of seat back frame 2 on bed frame 1, when screw mandrel 4 rose to the limit, seat back frame 2 went to the position perpendicular to bed frame 1; Otherwise when screw mandrel 4 descended, seat back frame 2 pin 11 that rotates changeed downwards, and seat back frame 2 is changed to level from plumbness.People strengthen the comfort that people lie on a bed and recuperate as long as just can control the angle of inclination that seat back frame rotates freely by handling motor switch.

Example 2: with the structural similarity of example 1, difference is: bevel gear 5 is directly installed on the main shaft of motor 10, and motor 10 is fixed on the frame 1, and power transmission shaft 8 omits in this example.

Claims

1, a kind of electronic tumbler of bed accessory backrest, it is characterized in that: it comprises a frame (1), seat back frame (2), electronic push mechanism, the right-hand member of seat back frame (2) is rotatably mounted on the frame (1) by ship and resell on another market (11), electronic push mechanism is arranged between a frame (1) and the seat back frame (2), and the rotation angle of inclination of seat back frame (2) is controlled by electronic push mechanism.

2, according to the electronic tumbler of the described bed accessory backrest of claim 1, it is characterized in that: described electronic push mechanism, comprise motor (10), drive (9), power transmission shaft (8), movable screw female seat (7), bevel gear nut (6), bevel gear (5), screw mandrel (4), drive (9) and bevel gear (5) are installed on the power transmission shaft (8), and power transmission shaft (8) is rotatably mounted on the frame (1); Motor (10) links to each other with power transmission shaft (8) by drive (9), bevel gear nut (6) is installed in rotation on the movable screw female seat (7), movable screw female seat (7) is fixed on the frame (1) turningly, screw mandrel (4) is paid by screw thread with bevel gear nut (6) and is linked to each other, the upper end of screw mandrel (4) and seat back frame (2) are hinged, bevel gear nut (6) and bevel gear (5) engagement.

3, electronic tumbler according to the described bed accessory backrest of claim 1, it is characterized in that: described electronic push mechanism, comprise motor (10), movable screw female seat (7), bevel gear nut (6), bevel gear (5), screw mandrel (4), bevel gear (5) is installed on the main shaft of motor (10), motor (10) is fixed on the frame (1), bevel gear nut (6) is installed in rotation on the movable screw female seat (7), movable screw female seat (7) is fixed on the frame (1) turningly, screw mandrel (4) is paid by screw thread with bevel gear nut (6) and is linked to each other, the upper end of screw mandrel (4) and seat back frame (2) are hinged, bevel gear nut (6) and bevel gear (5) engagement.

4, according to the electronic tumbler of claim 2 or 3 described bed accessory backrests, it is characterized in that: described movable screw female seat (7) is made up of bearing (71), bearing block (72), screw (73), ring for fixing (74) and support plate (75), bevel gear nut (6) is installed in the bearing (71), bearing (71) is installed in the bearing block (72), bearing block (72) is installed on the ring for fixing (74) by two screws (73) turningly, and ring for fixing (74) is fixed on the support plate (75) that is connected with bed frame (1).