CN2559269Y

CN2559269Y - Automatic raising & lowering electric bed

Info

Publication number: CN2559269Y
Application number: CN 02237921
Authority: CN
Inventors: 王洞; 王钧甫
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-18
Filing date: 2002-06-18
Publication date: 2003-07-09
Anticipated expiration: 2012-06-18

Abstract

The utility model discloses an automatic lifting electric bed, which comprises a bed frame equipped with bed legs, a group of lifting bed-board device is installed on the bed frame, the lifting bed-board device comprises a lifting limiting supporting bracket installed on a cross beam, a motor drive axle fixed between vertical beam frames, a racking arm and an active connecting block welded on the motor drive axle, a back plate which is connected by a fixing axle and can make lifting motion by taking the fixing axle as circle center, a groove shape plate welded on the back plate, a pulley on the end socket of the racking arm arranged in a groove shape rail of the groove shape plate of the back plate, a motor installed on the motor supporting frame of the bed frame, and an active connection block on the drive axle connected with the motor through a screw rod nut sleeve. The structural design is simple, the machining is easy, and the cost is low, the utility model not only can be machined into an integral single bed or an integral double bed, but also can be utilized for the various improvements of the prior single bed and the double bed, and the utility model especially is suitable for the utilization of normal families, aging people, patients, and medical units.

Description

The automatic-lifting type electric bed

Technical field

This utility model relates to a kind of automatic-lifting type electric bed.

Background technology

At present the single, double people's bed of domestic produced of China is generally fixedly, along with the progressively raising of arrival of new century China living standards of the people, also singly is not only limited to soft comfortable in the sleep for the requirement of bed, also needs some movable functions.For example see TV programme in bed as people, all back or knee joint to be raised when seeing books and newspapers or sick rest angled, partly lie half sit just suitable.But all be to do dependence with quilt or medicated pillow filling up behind on the general fixed bed, old people or patient then need lift back pad upward quilt or medicated pillow by people's service, and when putting down, then needing the people to remove the quilt medicated pillow could put down old man or patient.

Summary of the invention

The purpose of this utility model provides and a kind ofly convenient uses, the easy automatic-lifting type electric bed of processing and dependable performance, utilize the integral electric ascending, descending function of bed, people can oneself control the lifting in back, knee orientation, until be fit to the comfortable angle of individual, thereby the newspaper that televiews in bed, reads freely, have a meal, write something, take medicine.

For achieving the above object, this utility model is taked following design: this automatic-lifting type electric bed, comprise the bedstead that cabinet base is housed, one group of lifting bed board device is housed on bedstead, this lifting bed board device comprises: a lifting limited support is housed on crossbeam, fixed electrical machinery driving shaft between its longeron frame, on motor driving shaft, be welded with rocking arm and flexibly connect piece, backboard is connected with bedstead by fixed axis and can is that the center of circle moves up and down with the fixed axis, be welded with trough plate on the backboard; the pulley on the rocking arm termination places in the trough plate channel suspending rail of backboard; motor is installed on the electric machine support of bedstead, and link to each other with flexible connection piece on the driving shaft by the feed screw nut sleeve.

The utility model has the advantages that: structural design is simple, easily processing, and cost is low, both can be processed into whole single, double people's bed, and the transformation of also applicable various existing single, double people's beds is more suitable for the use of average family, old man, patient and medical institutions.

Description of drawings:

Fig. 1 is this utility model structural representation (support section below the omission bedstead)

Fig. 2-1 is the bedstead structure sketch map

Fig. 2-2 is a backboard lifting angle limited support structural representation

Fig. 2-3 is motor driving shaft, rocking arm, flexible connection block structure sketch map

Fig. 2-4 is a motor driver package assembly sketch map

Fig. 2-5 is the cabinet base structural representation

Fig. 3 is circuit control principle figure

The specific embodiment:

As shown in Figure 1, this utility model automatic-lifting type electric bed comprises bedstead 2, and cabinet base (omitting among the figure) is equipped with in the bottom of bedstead, and lifting limited support 3 is housed on the crossbeam, and motor driving shaft 4 is fixed between the longeron frame.Rocking arm 6 and flexibly connect that piece 12 is welded on the motor driving shaft 4 and angled with axle.Be welded with trough plate 7 on the backboard 5, the pulley on rocking arm 6 terminations can roll in trough plate 7 tracks of backboard, and backboard 5 is connected with bedstead by fixed axis 11 and can is that (rotation) elevating movement is done in the center of circle with fixed axis 11.The backboard angle of elevation is stopped when being up to 70 ° of angles by limited support 3 decisions.Backboard decline angle minimum is to end during with bedstead 0 ° of angle on level terms.Motor 9 is installed on the electric machine support 8 of bedstead 2, and the axle of motor 9 is gone up and connected one and the concentric leading screw 13 of motor shaft, and feed screw nut sleeve 10 is housed on the leading screw.Leading screw 13 is overlapped inside fully.The front end of feed screw nut sleeve 10 links to each other with flexible connection piece 12 usefulness pins on the motor driving shaft 4.Motor 9 can be done forward, reverse rotation, when motor 9 forward clockwise directions rotate, drive also rotation in the direction of the clock of leading screw 13, the feed screw nut sleeve 10 that is enclosed within leading screw outside level forward pushes away motor driving shaft 4, the rocking arm 6 that is welded on the axle is upwards lifted; the pulley on the rocking arm rolls in the trough plate track of backboard, holding up backboard is that upwards lift in the center of circle with fixed axis 11.When motor 9 reverse rotations, the ut socket 10 on the leading screw drives and drives rocker arm shaft 4 to the falling of motor 9 directions retraction drive rocking arm, and holder also falls after rise until become 0 ° of angle of level with bedstead till by gravity together at the backboard on the rocking arm pulley.

Fig. 2-1～2-5 is for each critical piece structure and interconnect sketch map, and it all can be realized by prior art, repeats no more herein.

When being single bed, described one group of lifting bed board device is a back lifting bed board device, the zone at back when lying low on bed with respect to the people, the fixed position of tool backboard; Or be a knee lifting bed board device, the zone of the fixed position of its backboard knee when lying low on bed with respect to the people; The lifting bed board device that also can be back and knee and establish, the fixed position of its corresponding backboard is located at the zone of back, knee when lying low on bed with respect to the people respectively.

When being double bed, described one group of as a whole type of lifting bed board device or two back lifting bed board device or knee lifting bed board devices that monomer is parallel; The lifting bed board device that also can be parallel back of a monolithic devices or two monomers and knee and establish.

Shown in Figure 3 is the power circuit diagram of motor.Motor adopts low voltage DC motor, as with civil power 220V high pressure, must be powered by power supply, adopts battery powered during power failure.

Be provided with on the controller keyboard: K1 is a lifting key, and K2 is the decline key.

(1) when the operator pins K1, the BG1 conducting, relay J 1 is connected, and 2. the operator of J1 is connect to B1 by A1, and 3. operator is connect to C1 by D1, and at this moment, the motor positive pole meets power supply 24V , and the motor negative pole meets power supply 24V , and motor just changes, and lifts on the backboard.

(2) when the operator unclamps the K1 key, BG1 ends, relay J 1 also stops, and 2. the operator of J1 gets back to A1 by B1, and 3. operator gets back to D1 by C1, the positive pole of motor and 24V B1 disconnect, communicate with 24V by D1, motor negative pole and 24V C1 1. disconnects, and motor power opens circuit, motor is not worked, and what angle backboard is lifted to and just be parked in what angle.

(3) when the operator pins the K2 key, relay operator 2. (24V ) is connected with A1, connects by K2 key and motor negative pole, and relay operator 3. (24V ) is connected with D1, and D1 and motor are anodal to be connected.At this moment the both positive and negative polarity reversal connection of the both positive and negative polarity of 24V and motor, the motor counter-rotating, backboard descends.

(4) when the operator unclamped the K2 key, 24V was disconnected by K2, can not connect with the motor negative pole, and the motor outage, backboard is dropped to any angle and just is parked in what angle.

(5) angle of lifting when backboard is to 70 ° of angles, and the operator continues to pin the K1 key when not putting, and backboard is opened upper limit position switch S1, and motor 24V disconnects, and motor quits work.Unclamp K1, relay J 1 operator resets, and when at this moment having only by decline K2 key, 24V and motor are connected, the motor counter-rotating, and backboard descends, and reaches the upper limit that is no more than 70 ° of angles.

(6) when backboard has dropped to 0 ° of angle; the operator still continues not put by K2, and backboard is opened decline limit switch S2, and the 24V of motor is disconnected; motor quits work; when at this moment having only by the K1 lifting key, the BG1 conducting, B1, C1 contact are jumped in relay J 1 work operator; the motor forward is connected the 24V power supply; motor just changes, and backboard can abovely be lifted, and reaches the effect of protection motor.

When being a plurality of lifting bed board device, many group lifting key and decline keys are set on the controller keyboard.

This utility model automatic-lifting type bed is worked under the low-voltage dc power supply of safety, simple to operate, the automaticity height, stable working, reliable, friction and noise make bed except that the flat sleep of crouching, can also increase other function, still being old man, patient to the normal person no matter, all is a new demand undoubtedly, uses for production unit, vast family and medical treatment, the unit of recuperating.

Claims

1, a kind of automatic-lifting type electric bed, comprise the bedstead that cabinet base is housed, it is characterized in that on bedstead, being equipped with one group of lifting bed board device, this lifting bed board device comprises: a lifting limited support is housed on crossbeam, fixed electrical machinery driving shaft between its longeron frame, on motor driving shaft, be welded with rocking arm and flexibly connect piece, backboard is connected with bedstead by fixed axis and can is that the center of circle moves up and down with the fixed axis, be welded with trough plate on the backboard; the pulley on the rocking arm termination places in the trough plate channel suspending rail of backboard; motor is installed on the electric machine support of bedstead, and link to each other with flexible connection piece on the driving shaft by the feed screw nut sleeve.

2, automatic-lifting type electric bed according to claim 1 is characterized in that: described one group of lifting bed board device is one group of back lifting bed board device, the zone at back when lying low on bed with respect to the people, the fixed position of its backboard.

3, automatic-lifting type electric bed according to claim 1 is characterized in that: described one group of lifting bed board device is one group of knee lifting bed board device, the zone of the fixed position of its backboard knee when lying low on bed with respect to the people.

4, automatic-lifting type electric bed according to claim 1, it is characterized in that: described one group of lifting bed board device is one group of back and knee and the lifting bed board device established, and the fixed position of its corresponding backboard is the zone of back, knee when lying low on bed with respect to the people respectively.