CN2248554Y - Multi movement linkage type hospital bed controlled by patient - Google Patents

Abstract

The utility model relates to a multi movement linkage type self-control nursing bed which is a multi movement nursing bed which uses a novel clutch transmission system and can be driven by power and hands. The simultaneous linkage of all movements of the multi movement linkage type self-control nursing bed can be carried out by being driven by a motor. A bed surface is composed of four segments which are controlled by patients through a small control box for adjusting different lifting postures. An expansion joint drawn by a steel cable is arranged in a bed leg, so that the entirety of the multi movement linkage type self-control nursing bed can be raised or lowered, and a bed head or a bed tail can be lifted individually for an inclined state which has a special significance for patients with heart diseases, patients with cerebrovascular insufficiency, patients needing to carry out traction, etc.

Description

Many action coordinated type automatic control nursing beds

This utility model relates to a kind of mechanical type from movable bed.

The nursing bed style of using is more at present, but mostly is ordinary flat formula or hand-rail type.Flat bed can not be out of shape, and postoperative or the patient who loses ability to act can only lie low, and permanent single posture is brought misery to patient, though hand bed can change patient's attitude, has increased burden to the nursing staff.Even existing electric bed is when realizing the distortion function, each action all will have a driven by motor, and type of belt drive is not novel, and moves lessly, increase action, and being bound to increase the motor number.Three actions of DYC2 type multifunctional electric sick bed as Shenyang the 5705 plant produced will realize with three motors, cause the rising of cost like this, are unfavorable for popularization and application.

The purpose of this utility model provides that a kind of action is many, and cost is low, and everything only adopts a motor to link simultaneously, but a certain action of independent control automatic care bed again.

The purpose of this utility model is achieved in that by special spring type clutch drive system of a driven by motor, this system has many group output shafts, can export many groups simultaneously and turn to different torques, drives leading screw by these output shafts, screw and other performers move this.

This nursing bed is because of having adopted this spring type clutch drive system, having only all distortion that can realize bed under the motor-driven situation, so reduced cost significantly, and in deformation process, everything all can link simultaneously, and the motion combination mode has multiple (a plurality of actions reduction that can raise simultaneously during interlock, the liter that can promptly contain some actions again, contain falling of some actions again in addition), this control section has adopted low-voltage control circuit, has improved safety.Adopt this drive system, decapacitation realizes also can causing the single head lifting of bed outside the bed surface action, makes it become heeling condition, to adapt to patient's different demands.

With reference to the accompanying drawings this utility model is described further below.

Fig. 1: nursing bed overall structure figure.

Fig. 2: spring type clutch kinematic scheme.

Fig. 3: power transforms figure.

Fig. 4: back portable plate action diagram.

Fig. 5: shank active movement plate action diagram.

Fig. 6: tailstock lifting schematic diagram.

Fig. 7: handle figure.

This nursing bed overall structure as shown in Figure 1, back portable plate 1 and shank active movement plate 3 are hinged with fixing head 2, the power of drive system 7 output makes push rod 5 and pull bar 6 promote back portable plate 1 respectively and raises up and spur shank active movement plate 3 and raise up, (at Fig. 4, detailed description is arranged among Fig. 5) shank passive activity plate 4 is hinged with shank active movement plate 3, and under 3 effect passive raising up, bar 15 is hinged together with shank passive activity plate 4, by the position of adjusting rod 15 in castellated plates 14, can make 4 to obtain the different angles that raises up, bed head frame 9 and tailstock frame 10 are pipe, there is under rope traction slidably telescopic joint 11 and 12 its inside, telescopic joint 11 and 12 (respectively having two) lifting separately in twos, bed is tilted, this is to the heart patient, head blood supply insufficiency patient, the patient that need carry out traction therapeutic has special meaning.Certainly, telescopic joint 11 and 12 is lifting simultaneously more, and when patient shifted on this nursing bed on by stretcher, castor moved to the stretcher limit under the reliable telescopic joint of this bed, and integral body rises to stretcher and flush, and patient's translation is got final product, and has alleviated patient's misery.This exercises all can be by in patient's hands little control box handle, also can by one fixedly panel 13 handle by the nursing staff.

Link when making this can realize a plurality of combination of actions under the situation that a motor 8 drives, this key is to have adopted below a kind of new-type spring type clutch drive system (being 7 in the accompanying drawing 1) with reference to the accompanying drawings 2 this system described.

Native system is a drive power source, engagement system (not shown in the accompanying drawing) by other mated gears makes pinion 16 and the anti-phase rotation of 17 mutual constant speed, thereby drive gear wheel 18,19 also reverse rotations mutually, by key connecting at gear wheel 18, cover 20 on 19,21 also respective opposed rotations, fixed cover 22, the 23rd, with key connecting on axle 26, fixed cover 22,23 external diameter equals to overlap 20 respectively, 21 external diameter, cover 20 and fixed cover 22 overcoats the wind spring of being made by flat filament 24, the internal diameter of wind spring 24 is slightly larger than the external diameter of cover 20 and fixed cover 22, same cover 21 and fixed cover 23 overcoats wind spring 25, collude respectively at cover 20 termination of these two wind springs, on 21 near in the aperture of gear wheel, when the gear rotation causes cover 20, during 21 rotations, because of they are that sky is enclosed within on the axle 26, so axle 26 does not change, when the some energisings in electric magnet 27 or 28, for example 27 energisings, then its iron core is to fixed cover 22 motions, compressing wind spring 24 makes its dish tightly on cover 20 and fixed cover 22, by the frictional force of coiling tight generation fixed cover 22 is rotated together in company with cover 20 and gear 18, axle 26 output torques this moment, and it turns to and turns to identical with gear wheel 18, equally, axle 26 output torques when electric magnet 28 energisings, and it turns to and turns to identical with gear wheel 19, above-mentioned is the operation principle of a unit shaft, when adopting a plurality of identical unit shaft, promptly constitute the bed drive system.Adopt this system under the situation of having only a power source input, interlock also can be controlled some actions individually when can realize everything.

In Fig. 1, remove 1,2,3,4,5,6,13,14, attached view behind 15 each part is Fig. 3, in Fig. 3, the torque that motor 8 drives drive system 7 outputs makes screw mandrel 29 respectively, 30,31,32 rotate, wherein leading screw 30, drive screw 34 and 36 rectilinear motions during 32 rotations, and respectively at the steel wire rope on screw 34 and 36 37,38 and 39,40 by screw pulling (or loosening), by horizontal deflecting roller 41,42,43,44 and vertical duction wheel 45,46,47,48 break-in, pulling (or loosening) is hidden in the rising (or down) that retracting cylinder motion (typical case is seen Fig. 6 and explanation for details) in bed head frame and the tailstock frame causes bed, screw 33, during 35 rectilinear motions, drive actuator, make back portable plate 1 and 3 actions of shank active movement plate in shown in Figure 1 (see Fig. 4 for details respectively, 5 and the explanation).

Figure 4 shows that the action diagram of back portable plate 1, when leading screw 29 rotations make screw 33 to left movement, promote dowel steel 49 motions, dowel steel 49 is hinged by pin 50 with push rod 5, force back portable plate 1 upwards to rotate around pin 52 and 53 with push rod 5 pipe 51 welded together when dowel steel 49 promotes push rods 5 motions, reach the purpose that patients back raises up, screw 33 dextrad are moved when leading screw 29 reverse rotations, pulling dowel steel 49 descends back portable plate 1.

Fig. 5 is the action diagram of shank active movement plate 3, when leading screw 31 rotations move right screw 35,54 motions of pulling dowel steel, dowel steel 54 is hinged by pin 55 with pull bar 6, and when dowel steel 54 pulling pull bars 6, the pipe 56 welded together with pull bar 6 forces leg movements plate 3 upwards to rotate around pin 57 and 58, reach the purpose that patient's shank raises up, anti-with rotation when leading screw, screw 35 promotes dowel steel 54 shank active movement plate 3 is descended to left movement.

Figure 6 shows that the schematic diagram of tailstock lifting, by wheel 43,47 and 44,48 break-ins, its upper end is fixed on the upper end of telescopic joint 12 respectively for (head of a bed lifting is identical with it), steel wire rope 39,40, when steel wire rope 39,40 tensions, telescopic joint 12 is subjected to downward power, forces its square tube along the tailstock frame to move downward, thereby with bed jack-up, reach the purpose that rises bed, when pine returned steel wire rope, bed forced telescopic joint to move upward by deadweight, reached the purpose of falling bed.

Owing to adopted novel spring type clutch drive system, make the bed not only can electric control, also can manual control.When electronic part is not worked, at the bottom of handle (showing as Fig. 7) stretched into bed, in flat on the termination of breach on handle cover people axle 26 (or all the other each), therefore motor electromagnetic ferrum no power the time, driving-chain is thrown off, turning handle can make axle 26 rotate, thereby drives the leading screw rotation that connects with axle, and (as having a power failure) still reliable each several part of manually adjusting is moved.

This patient's Autonomous Control, the nursing bed sample of many action interlocks (can reach four actions links simultaneously) is trial-produceed successfully, and this bed adopts the sheet metal molectron, the drive system compactness, and owing to only adopt a motor, cost is lower, helps this popularization and application.

Claims (5)

1, a kind of novel nursing bed, bed surface is formed by four sections, bed surface has running part, has only a power source input, it is characterized in that: adopted the spring type clutch transmission, this mechanism comprises: gear wheel (18) (19), cover (20) (21), fixed cover (22) (23), axle (26), wind spring (24) (25), electric magnet (27) (28) and key.

2, nursing bed according to claim 1 is characterized in that: the head of a bed and tailstock frame contain telescopic joint, and lifting is fixed with the upper end of steel wire rope one end and telescopic joint, and the other end fixes by deflecting roller and screw.

3, nursing bed according to claim 1 is characterized in that; Have groove on the handle, can insert the termination of leading screw flat in.

4, nursing bed according to claim 1 is characterized in that: wind spring is the square section spring steel wire, and the 0.3-0.6 mm clearance is arranged between wind spring and cover and the fixed cover.

5, nursing bed according to claim 1 is characterized in that: driving member is a nylon garden stud wheel.

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