CN2592149Y

CN2592149Y - Electric angle-adjustable bed

Info

Publication number: CN2592149Y
Application number: CN 02245526
Authority: CN
Inventors: 刘爱群
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-17
Filing date: 2002-12-17
Publication date: 2003-12-17
Anticipated expiration: 2012-12-17

Abstract

The utility model relates to an electric angle-adjustable bed which can cause mattresses to rotate without stages within the range from 0 DEG to 90 DEG. A front mattress and a back mattress are mutually independent, wherein, the front mattress (5) can not be adjusted, and the back mattress (4) is controlled by a rotary system to perform angle adjustment. The rotary system of the mattress is composed of a control circuit, a motor (18), a speed reducing mechanism, a transmission mechanism of a crank rocker, an auxiliary mechanism and a hand-rocking emergency device (14) for power failure. The control circuit is connected with the motor (18), the motor (18) is connected with a big belt wheel (32) arranged on a speed reducing box (11) arranged in the speed reducing mechanism by belt transmission, an output end, namely a main shaft (33) of the speed reducing box (11) is connected with the transmission mechanism of the crank rocker by a key or a pin, and the back mattress (4) is directly arranged on a supporting frame (7) arranged in the transmission mechanism of the crank rocker. The utility model can cause people who are used to reading or watching TV by lying in bed to enjoy the leisure pleasure, and can cause a sickbed patient to conveniently lie and sit. The independently automatic adjustment is realized, and the burden of nursing staff is lightened.

Description

Electronic angle adjustable formula bed accessory

Technical field

But this utility model relates to a kind of dynamo-electric device in conjunction with motorized adjustment mattress angle, this device can be in 0～90 ° of scope step-less adjustment angle arbitrarily, and be provided with the hand emergency set that has a power failure.

Background technology

At present, traditional bed accessory that people use, its mattress is integrated, can't adjust angle.People custom lie on a bed reading, see TV, loosen for reaching, comfortable purpose, often take to put the method solution of headrest in neck, back pad.Like this, cervical vertebra, lumbar vertebra are subjected to compressing in various degree.Of long duration, people can usually feel that cervical region, waist, back etc. locate stiffly, tingle, and it is unusual to ache all over, and for a long time in the past, then can cause pathological changes such as cervical vertebra, lumbar vertebra distortion easily.In addition, the angle adjustable nursing bed that use in the ward, when adjusting the mattress angle, by the hand adjusting of nursing staff, the bed patient then can not Autonomous Control mattress angle, and mechanical hand-rail type bed both wasted time and energy, and is inconvenient to again operate.

Summary of the invention

Can't regulate the drawback of mattress angle automatically in order to overcome existing bed accessory, this utility model provides a kind of electronic angle adjustable formula bed accessory.

The technical scheme that its technical problem that solves this utility model adopts is: a kind of electronic angle adjustable formula bed accessory, the front and back mattress is separate, do not connect mutually, anterior mattress is unadjustable, directly place on the bedstead, the rear portion mattress carries out angle adjustment by rotary system control, the mattress rotary system is by control circuit, motor, reducing gear, the crank rocker drive mechanism, have a power failure hand emergency set of auxiliary body is formed, control circuit links to each other with motor, motor is connected by the big belt wheel on the reduction box in belt transmission and the reducing gear, the outfan of reduction box is that main shaft passes through key or pin is connected with the crank rocker drive mechanism, the rear portion mattress directly places on the bearing support of crank rocker drive mechanism, and the on-off control box places on the bedstead one side breast board.

Front and back mattress intermediate gap is provided with the embedded baffle plate of intersection, and the rear portion mattress is made pillow-like at head position, and head is provided with two nylon cingulums by top end, and mattress top and mattress plane are 84 ° of angles.

Reducing gear is made up of triple reduction gearing, the first order is the V belt transmission, and the second level and the third level are the worm and gear transmission, and the gear ratio of triple reduction gearing was respectively 1: 25,20,24, through three grades of decelerations, the rotating speed of 1400 rev/mins in motor is reduced to spindle end 2.33 rev/mins; Deceleration device is integrated into a reduction box, the big belt wheel of first order bel-drivenn is fixed on the worm shaft of second level worm and gear transmission, be positioned at the reduction box outside, the worm gear of second level transmission is fixed on the worm shaft of third level transmission, the worm gear of third level transmission is fixed on the main shaft, and reduction box is connected with small pulley on the motor by belt transmission.

The crank rocker drive mechanism is a balance type structure, it by two groups of support bars, cranking arm is formed by connecting with bearing support respectively, all adopt the revolute pair form to connect between each parts, the big end of support bar is fixed on the main shaft in the reduction box with key or pin, the small end of support bar is connected with the long arm end of cranking arm, the galianconism end of cranking arm is connected with fixed hinge bearing on the bearing support, and the bent angle of cranking arm is 150 °, and length arm ratio is 2: 1.

The hand emergency set that has a power failure is off-state with main shaft under normal conditions, is fixed on the breast board of bed one side, and the axial line of the centrage of proper square driving end and main shaft relies on spring to reset point-blank before this emergency set.

Brakes adopts the dynamic braking mode, all is in the normal state down or upper and lower stroke switch is touched the rear motor outage at forward-reverse switch, and the automatic conducting of rectification circuit applies a unidirectional current at the motor stator winding two ends, play braking action.When mattress rotate to require the position after, even cut off main power, all can utilize the self-locking action of worm-and-wheel gear, prevent the mattress reversing.When mattress rotate to require the position after, even cut off main power, that all can utilize worm and gear prevents the mattress reversing from trivial effect.

Be connected in series with main switch after prograde circuit, circuit for reversing, the rectification circuit parallel connection; in way circuit; just change, reversal switch is for band is often opened, the point driving switch of normally-closed contact; utilize often the opening of forward and backward switch and upper and lower stroke switch, normally-closed contact to interconnect respectively; reach interlocking and interlock effect; in circuit, be connected in series the overcurrent protection fuse respectively, prevent motor and transformer current the overload and impaired.

After adopting above technical scheme, the beneficial effects of the utility model are: this bed accessory can make the human body first half be close to mattress and movement therewith all the time, meets the organization of human body characteristics.It not only can make the reading or see that the people of TV enjoy the satisfied of leisure of getting used to lying on a bed, and can also make bed patient's seats of conveniently lying, and realizes autonomous adjusting automatically, alleviate nursing staff's burden, has fully satisfied people and has pursued health, comfortable hope.

Description of drawings

Fig. 1 is a schematic appearance of the present utility model.

Fig. 2 is the X-X cutaway view of Fig. 1, and promptly the installation diagram of rotary system wherein removes motor and reduction box mounting bracket.

Fig. 3 is the C-C cutaway view of Fig. 2, wherein removes the hand emergency set that has a power failure.

Fig. 4 is the D-D cutaway view of Fig. 3, i.e. bearing support vertical view.

Fig. 5 is the reduction box structural map.

Fig. 6 is circuit theory diagrams of the present utility model.

In shown in Fig. 1-5, intersect embedded baffle plate 1, nylon cingulum 2, switch enclosure 3, rear portion mattress 4, anterior mattress 5, bearing support runing rest 6, bearing support 7, rotating shaft 8, travel switch driving lever 9, travel switch 10, reduction box 11, fixed hinge bearing 12, breast board 13 all around, and the hand emergency set 14 that has a power failure cranks arm 15, axle sleeve 16, support bar 17, motor 18, bolt and nut 19, packing ring 20, wood block filler 21, V-belt 22, cover plate 23, worm shaft 24, worm gear 25, bearing 26, cabinet 27, worm shaft 28, worm gear 29, screw 30, alignment pin 31, big belt wheel 32, main shaft 33, triangle rest pad 34.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

As shown in Figure 1, anterior mattress 5 and rear portion mattress 4 independent placements, the centre is eliminated the slit and is made bed surface smooth with the embedded baffle plate 1 of intersection, nylon cingulum 2 is arranged on rear portion mattress 4 top ends, is respectively equipped with main switch K, positive turn-off pass ZA, reversal switch FA, fuse base 1RD, 2RD, hand emergency set 14 handle sockets of power failure in the switch enclosure 3.

Fig. 2, Fig. 3, shown in Figure 4 in, second, four baffle plate that intersect in five baffle plates of embedded baffle plate 1 is fixed on the bearing support 7 with bearing support 7 rotations, first and third, five baffle plate be separately fixed at bed around on the intermediate isolating breast board of breast board 13 and bedstead front and rear part.Rotating shaft 8 passes two ends, bearing support 7 back and stretches into respectively in the bearing support runing rest 6, around the bearing support runing rest 6 of both sides is fixed on by wood block filler 21 on the breast board 13.The galianconism end of two suite arms 15 connects the fixed hinge bearing 12 on the bearing support 7, and long arm end links to each other with support bar 17 with axle sleeve 16 by bolt and nut 19, packing ring 20; The other end of two groups of support bars 17 rotates with main shaft 33 with main shaft 33 two ends that key or pin are fixed on the reduction box 11 respectively; Big belt wheel 32 on the reduction box 11 is realized belt transmission by V-belt 22 and the small pulley on the motor 18, motor 18 and reduction box 11 are installed on the special support, so that stable drive, when bearing support 7 during in horizontal level or upright position, travel switch driving lever 9 on the main shaft 33 promotes to be fixed on accordingly the travel switch 10 on the reduction box 11 respectively, make motor 18 outages, thereby bearing support 7 is stopped operating.Bearing support 7 is realized supplemental support by four triangle rest pads on the breast board 13 around being fixed on 34 when horizontal level.The hand emergency set 14 that has a power failure is fixed on the bed one side breast board 13, the centrage of the positive square driving end of its front end and the axial line of main shaft 33 are point-blank, promote this device with the handle socket of handle from switch enclosure 3, the positive square driving end of this device front end is inserted in the spanner cover of a side on the main shaft 33, thereby realize hand transmission, this device can not automatically reset by spring the time spent.

As shown in Figure 5, big belt wheel 32 is positioned at cabinet 27 outsides, is fixed on the worm shaft 24 with alignment pin 31, and worm gear 25 is fixed on the worm shaft 28, and worm gear 29 is fixed on the main shaft 33.Worm shaft 24, worm shaft 28, main shaft 33 two ends all are installed in the cabinet 27 by bearing 26.

As shown in Figure 6, the break-make of main switch K control entire circuit.The normally-closed contact that the normally-closed contact of upper stroke switch ZXK and positive turn-off close normally opened contact, the reversal switch FA of the ZA formation prograde circuit of connect; The normally opened contact that the normally-closed contact of lower stroke switch FXK and positive turn-off close normally-closed contact, the reversal switch FA of the ZA formation circuit for reversing of connect; The normally-closed contact that positive turn-off closes ZA is connected with the normally-closed contact of reversal switch FA, and is in parallel with the normally opened contact of upper stroke switch ZXK and lower stroke switch FXK respectively again, connects with bridge rectifier ZL then to constitute rectification circuit.Prograde circuit, circuit for reversing, rectification circuit are parallel-connection structure, energy interlocking each other, and when prograde circuit or circuit for reversing work, the rectification circuit automatic disconnection; In a single day the forward or reverse circuit quits work, and rectification circuit starts immediately.Fuse 1RD, 2RD are connected on respectively in the circuit, prevent motor D and transformator B current overload.

Claims

1, a kind of electronic angle adjustable formula bed accessory, the front and back mattress is separate, anterior mattress (5) is unadjustable, it is characterized in that: rear portion mattress (4) carries out angle adjustment by rotary system control, the mattress rotary system is by control circuit, motor (18), reducing gear, the crank rocker drive mechanism, auxiliary body's hand emergency set (14) that has a power failure is formed, control circuit links to each other with motor (18), motor (18) is connected by the big belt wheel (32) on the reduction box (11) in belt transmission and the reducing gear, reduction box (11) outfan is that main shaft (33) is connected with the crank rocker drive mechanism by key or pin, and rear portion mattress (4) directly places on the bearing support (7) of crank rocker drive mechanism.

2, a kind of electronic angle adjustable formula bed accessory according to claim 1, it is characterized in that: front and back mattress intermediate gap is provided with intersection embedded baffle plate (1), rear portion mattress (4) is made pillow-like at head position, head is provided with two nylon cingulums (2) by top end, and mattress top and mattress plane are 84 ° of angles.

3, a kind of electronic angle adjustable formula bed accessory according to claim 1, it is characterized in that: reducing gear is made up of triple reduction gearing, the first order is the V belt transmission, the second level and the third level are the worm and gear transmission, the gear ratio of triple reduction gearing was respectively 1: 25,20,24, through three grades of decelerations, the rotating speed of (18) 1400 rev/mins in motor is reduced to 2.33 rev/mins that main shaft (33) is held; Deceleration device is integrated into a reduction box (11), the big belt wheel of first order bel-drivenn (32) is fixed on the worm shaft (24) of second level worm and gear transmission, be positioned at reduction box (11) outside, the worm gear of second level transmission (25) is fixed on the worm shaft (28) of third level transmission, the worm gear of third level transmission (29) is fixed on the main shaft (33), and reduction box (11) is connected with small pulley on the motor (18) by belt transmission.

4, a kind of electronic angle adjustable formula bed accessory according to claim 1, it is characterized in that: the crank rocker drive mechanism is a balance type structure, it is by two groups of support bars (17), crank arm (15) respectively and bearing support (7) be formed by connecting, all adopt the revolute pair form to connect between each parts, the big end of support bar (17) is fixed on the main shaft (33) in the reduction box (11) with key or pin, the small end of support bar (17) is connected with the long arm end of crank arm (15), the galianconism end of (15) of cranking arm is connected with fixed hinge bearing (12) on the bearing support (7), the bent angle of (15) of cranking arm is 150 °, and length arm ratio is 2: 1.

5, a kind of electronic angle adjustable formula bed accessory according to claim 1, it is characterized in that: the hand emergency set (14) that has a power failure is off-state with main shaft (33) under normal conditions, be fixed on the breast board of bed one side, the axial line of the centrage of proper square driving end and main shaft (33) relies on spring to reset point-blank before this emergency set.