CN1698498A

CN1698498A - Single-motor double-linkage bed driver

Info

Publication number: CN1698498A
Application number: CN 200510050301
Authority: CN
Inventors: 张志刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-12
Filing date: 2005-05-12
Publication date: 2005-11-23

Abstract

The utility model provides a single motor double-linkage driver for bed, belong to the automatic drive device technical field that beddo bed surface collet slope or riseed, mainly include shell (2) of taking drive bearing (5), be fixed in motor (1) at shell (2) middle part and by the reduction gears of worm wheel (7) and worm (8) constitution, be fixed in transfer line (6) that both ends extend on the center pin of worm wheel (7), lead screw (3) of taking drive block (4) at the both ends that are fixed in transfer line (6) respectively, worm (8) are with as an organic whole with the output shaft of motor (1), the front end of drive block (4) is connected with the rocking arm of bed surface peripheral hardware collet. Can automatically lift the bottom supports of the two bed surfaces at the same time, has reasonable design, more compact integral structure, larger transmission ratio and convenient use. The automatic lifting electric bed is matched with a matched use, and can bring labor saving, convenience and comfort for old, weak, sick and disabled people, inpatients and normal people at home.

Description

Bed used driver with single engine and double linkage

Technical field

The present invention relates to a kind of bed used driver with single engine and double linkage, belong to the automatic drive technical field that electric bed bed surface collet tilts or raises.

Background technology

The senior ward electric bed of more present families, hospital, have bed and draw the driving device of collet automatic lifting, it has the corresponding bed surface in the back that can make the human body implantation and digs angled automatically and/or the corresponding bed surface of human body lower limbs is raised the function of certain angle.Chinese patent CN2559269Y " automatic-lifting type electric bed " has disclosed a kind of bed surface collet automatic lifting driving device, comprise the lifting limited support on the bedstead crossbeam, be fixed on the motor driving shaft between longeron, rocking arm on the driving shaft and flexible connection piece, the bed surface backboard is connected with bedstead by fixed axis, be welded with trough plate on the bed surface backboard; the pulley on the rocking arm termination places in the channel suspending rail of trough plate; motor is installed on the electric machine support of bedstead, link to each other with flexible connection piece on the driving shaft by feed screw nut's sleeve.

This class bed surface collet automatic lifting driver has almost occupied a following whole space, it and bedstead closely link together, because this structure, to bring following problem: the employed material of driving device is more, manufacturing cost is higher, bother during maintenance cost, particularly when maintenance, need the bed of rising of long period to make troubles the old,weak,sick and disabled personnel.

Summary of the invention

The purpose of this invention is to provide a kind of reasonable in designly, it is little to have a volume, and compact conformation is easy to use, is convenient to the bed used driver with single engine and double linkage of characteristics such as keeping in repair.

The present invention is a bed used driver with single engine and double linkage, comprise shell, the reducing gear that the middle part that it is characterized in that shell is provided with a motor and is made of worm gear and worm screw, the output shaft of worm screw and motor is all one, be fixed with the drive link that extend at two ends on the central shaft of worm gear, the two ends of drive link are fixed with the screw mandrel of band drive block respectively, and the front end of described drive block is connected with the rocking arm of peripheral hardware bed surface collet.

Screw thread on the screw mandrel of described drive block two ends can be opposite each other.

Also can be provided with the fixedly drive bearing of screw mandrel in the described shell.

The present invention adopts a motor to drive two linear telescopic mechanisms that are made of screw mandrel and drive block simultaneously, can carry out automatic lifting to two bed surface collets simultaneously, and is reasonable in design, makes overall structure more compact, and has bigger gear ratio, easy to use.The old,weak,sick and disabled person, inpatient and the normal person who can be family with the matching used automatic lifting electric bed of the present invention bring and save labour, convenient and comfortable.

Description of drawings

Accompanying drawing is overall structure of the present invention and partial sectional view.

The specific embodiment

The present invention mainly comprises the shell 2 of being with drive bearing 5, be fixed in a motor 1 at shell 2 middle parts and the reducing gear that constitutes by worm gear 7 and worm screw 8, be fixed in the drive link 6 that extend at two ends on the central shaft of worm gear 7, be individually fixed in the screw mandrel 3 of the two ends band drive block 4 of drive link 6, worm screw 8 is all one with the output shaft of motor 1, and the front end of drive block 4 is connected with the rocking arm of peripheral hardware bed surface collet.Screw thread on the drive block 4 two ends screw mandrels 3 is opposite each other.

During work, starter motor 1 is just changeing, and via the reducing gear transmission that worm gear 7 and worm screw 8 constitute, drives screw mandrel 3 rotations of drive link 6 two ends band drive blocks 4, and it is overhanging to promote drive block 4, and the rocking arm on the bed surface collet is rotated, and the bed surface collet raises gradually.Motor 1 stops operating, and the bed surface collet is parked in the extreme higher position, and promptly this bed surface collet is in obliquity with bed.

In the time the bed surface collet that raises need being descended, if starter motor 1 counter-rotating, through the reducing gear transmission, screw mandrel 3 rotations make drive block 4 retractions, and the bed surface collet is under its deadweight effect, rotate by the rocking arm that contacts with drive block 4, the bed surface collet is descended gradually, until dropping to the normal position.

Claims

1, a kind of bed used driver with single engine and double linkage, comprise shell (2), the middle part that it is characterized in that shell (2) is provided with a motor (1) and by the reducing gear of worm gear (7) and worm screw (8) formation, worm screw (8) is all one with the output shaft of motor (1), be fixed with the drive link (6) that extend at two ends on the central shaft of worm gear (7), the two ends of drive link (6) are fixed with the screw mandrel (3) of band drive block (4) respectively, and the front end of described drive block (4) is connected with the rocking arm of peripheral hardware bed surface collet.

2, by the described bed used driver with single engine and double linkage of claim 1, it is characterized in that the screw thread on described drive block (4) the two ends screw mandrels (3) is opposite each other.

3, by claim 1 or 2 described bed used driver with single engine and double linkage, it is characterized in that also being provided with in the described shell (1) the fixedly drive bearing (5) of screw mandrel (3).